diff options
Diffstat (limited to 'drivers/usb/gadget')
25 files changed, 4148 insertions, 275 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index acc95b2ac6f8..dd4cd5a51370 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -45,7 +45,7 @@ if USB_GADGET config USB_GADGET_DEBUG boolean "Debugging messages (DEVELOPMENT)" - depends on USB_GADGET && DEBUG_KERNEL + depends on DEBUG_KERNEL help Many controller and gadget drivers will print some debugging messages if you use this option to ask for those messages. @@ -59,7 +59,7 @@ config USB_GADGET_DEBUG config USB_GADGET_DEBUG_FILES boolean "Debugging information files (DEVELOPMENT)" - depends on USB_GADGET && PROC_FS + depends on PROC_FS help Some of the drivers in the "gadget" framework can expose debugging information in files such as /proc/driver/udc @@ -70,7 +70,7 @@ config USB_GADGET_DEBUG_FILES config USB_GADGET_DEBUG_FS boolean "Debugging information files in debugfs (DEVELOPMENT)" - depends on USB_GADGET && DEBUG_FS + depends on DEBUG_FS help Some of the drivers in the "gadget" framework can expose debugging information in files under /sys/kernel/debug/. @@ -79,12 +79,36 @@ config USB_GADGET_DEBUG_FS Enable these files by choosing "Y" here. If in doubt, or to conserve kernel memory, say "N". +config USB_GADGET_VBUS_DRAW + int "Maximum VBUS Power usage (2-500 mA)" + range 2 500 + default 2 + help + Some devices need to draw power from USB when they are + configured, perhaps to operate circuitry or to recharge + batteries. This is in addition to any local power supply, + such as an AC adapter or batteries. + + Enter the maximum power your device draws through USB, in + milliAmperes. The permitted range of values is 2 - 500 mA; + 0 mA would be legal, but can make some hosts misbehave. + + This value will be used except for system-specific gadget + drivers that have more specific information. + config USB_GADGET_SELECTED boolean # # USB Peripheral Controller Support # +# The order here is alphabetical, except that integrated controllers go +# before discrete ones so they will be the initial/default value: +# - integrated/SOC controllers first +# - licensed IP used in both SOC and discrete versions +# - discrete ones (including all PCI-only controllers) +# - debug/dummy gadget+hcd is last. +# choice prompt "USB Peripheral Controller" depends on USB_GADGET @@ -94,26 +118,27 @@ choice Many controller drivers are platform-specific; these often need board-specific hooks. -config USB_GADGET_AMD5536UDC - boolean "AMD5536 UDC" - depends on PCI - select USB_GADGET_DUALSPEED +# +# Integrated controllers +# + +config USB_GADGET_AT91 + boolean "Atmel AT91 USB Device Port" + depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 + select USB_GADGET_SELECTED help - The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. - It is a USB Highspeed DMA capable USB device controller. Beside ep0 - it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). - The UDC port supports OTG operation, and may be used as a host port - if it's not being used to implement peripheral or OTG roles. + Many Atmel AT91 processors (such as the AT91RM2000) have a + full speed USB Device Port with support for five configurable + endpoints (plus endpoint zero). Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "amd5536udc" and force all + dynamically linked module called "at91_udc" and force all gadget drivers to also be dynamically linked. -config USB_AMD5536UDC +config USB_AT91 tristate - depends on USB_GADGET_AMD5536UDC + depends on USB_GADGET_AT91 default USB_GADGET - select USB_GADGET_SELECTED config USB_GADGET_ATMEL_USBA boolean "Atmel USBA" @@ -150,28 +175,50 @@ config USB_FSL_USB2 default USB_GADGET select USB_GADGET_SELECTED -config USB_GADGET_NET2280 - boolean "NetChip 228x" - depends on PCI - select USB_GADGET_DUALSPEED +config USB_GADGET_LH7A40X + boolean "LH7A40X" + depends on ARCH_LH7A40X help - NetChip 2280 / 2282 is a PCI based USB peripheral controller which - supports both full and high speed USB 2.0 data transfers. - - It has six configurable endpoints, as well as endpoint zero - (for control transfers) and several endpoints with dedicated - functions. + This driver provides USB Device Controller driver for LH7A40x + +config USB_LH7A40X + tristate + depends on USB_GADGET_LH7A40X + default USB_GADGET + select USB_GADGET_SELECTED + +config USB_GADGET_OMAP + boolean "OMAP USB Device Controller" + depends on ARCH_OMAP + select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG + help + Many Texas Instruments OMAP processors have flexible full + speed USB device controllers, with support for up to 30 + endpoints (plus endpoint zero). This driver supports the + controller in the OMAP 1611, and should work with controllers + in other OMAP processors too, given minor tweaks. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "net2280" and force all + dynamically linked module called "omap_udc" and force all gadget drivers to also be dynamically linked. -config USB_NET2280 +config USB_OMAP tristate - depends on USB_GADGET_NET2280 + depends on USB_GADGET_OMAP default USB_GADGET select USB_GADGET_SELECTED +config USB_OTG + boolean "OTG Support" + depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD + help + The most notable feature of USB OTG is support for a + "Dual-Role" device, which can act as either a device + or a host. The initial role choice can be changed + later, when two dual-role devices talk to each other. + + Select this only if your OMAP board has a Mini-AB connector. + config USB_GADGET_PXA25X boolean "PXA 25x or IXP 4xx" depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX @@ -203,34 +250,6 @@ config USB_PXA25X_SMALL default y if USB_ETH default y if USB_G_SERIAL -config USB_GADGET_M66592 - boolean "Renesas M66592 USB Peripheral Controller" - select USB_GADGET_DUALSPEED - help - M66592 is a discrete USB peripheral controller chip that - supports both full and high speed USB 2.0 data transfers. - It has seven configurable endpoints, and endpoint zero. - - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "m66592_udc" and force all - gadget drivers to also be dynamically linked. - -config USB_M66592 - tristate - depends on USB_GADGET_M66592 - default USB_GADGET - select USB_GADGET_SELECTED - -config SUPERH_BUILT_IN_M66592 - boolean "Enable SuperH built-in USB like the M66592" - depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722 - help - SH7722 has USB like the M66592. - - The transfer rate is very slow when use "Ethernet Gadget". - However, this problem is improved if change a value of - NET_IP_ALIGN to 4. - config USB_GADGET_PXA27X boolean "PXA 27x" depends on ARCH_PXA && PXA27x @@ -251,40 +270,32 @@ config USB_PXA27X default USB_GADGET select USB_GADGET_SELECTED -config USB_GADGET_GOKU - boolean "Toshiba TC86C001 'Goku-S'" - depends on PCI +config USB_GADGET_S3C2410 + boolean "S3C2410 USB Device Controller" + depends on ARCH_S3C2410 help - The Toshiba TC86C001 is a PCI device which includes controllers - for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI). - - The device controller has three configurable (bulk or interrupt) - endpoints, plus endpoint zero (for control transfers). + Samsung's S3C2410 is an ARM-4 processor with an integrated + full speed USB 1.1 device controller. It has 4 configurable + endpoints, as well as endpoint zero (for control transfers). - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "goku_udc" and to force all - gadget drivers to also be dynamically linked. + This driver has been tested on the S3C2410, S3C2412, and + S3C2440 processors. -config USB_GOKU +config USB_S3C2410 tristate - depends on USB_GADGET_GOKU + depends on USB_GADGET_S3C2410 default USB_GADGET select USB_GADGET_SELECTED +config USB_S3C2410_DEBUG + boolean "S3C2410 udc debug messages" + depends on USB_GADGET_S3C2410 -config USB_GADGET_LH7A40X - boolean "LH7A40X" - depends on ARCH_LH7A40X - help - This driver provides USB Device Controller driver for LH7A40x - -config USB_LH7A40X - tristate - depends on USB_GADGET_LH7A40X - default USB_GADGET - select USB_GADGET_SELECTED +# +# Controllers available in both integrated and discrete versions +# -# built in ../musb along with host support +# musb builds in ../musb along with host support config USB_GADGET_MUSB_HDRC boolean "Inventra HDRC USB Peripheral (TI, ...)" depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG) @@ -294,76 +305,124 @@ config USB_GADGET_MUSB_HDRC This OTG-capable silicon IP is used in dual designs including the TI DaVinci, OMAP 243x, OMAP 343x, and TUSB 6010. -config USB_GADGET_OMAP - boolean "OMAP USB Device Controller" - depends on ARCH_OMAP - select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 +config USB_GADGET_M66592 + boolean "Renesas M66592 USB Peripheral Controller" + select USB_GADGET_DUALSPEED help - Many Texas Instruments OMAP processors have flexible full - speed USB device controllers, with support for up to 30 - endpoints (plus endpoint zero). This driver supports the - controller in the OMAP 1611, and should work with controllers - in other OMAP processors too, given minor tweaks. + M66592 is a discrete USB peripheral controller chip that + supports both full and high speed USB 2.0 data transfers. + It has seven configurable endpoints, and endpoint zero. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "omap_udc" and force all + dynamically linked module called "m66592_udc" and force all gadget drivers to also be dynamically linked. -config USB_OMAP +config USB_M66592 tristate - depends on USB_GADGET_OMAP + depends on USB_GADGET_M66592 default USB_GADGET select USB_GADGET_SELECTED -config USB_OTG - boolean "OTG Support" - depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD +config SUPERH_BUILT_IN_M66592 + boolean "Enable SuperH built-in USB like the M66592" + depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722 help - The most notable feature of USB OTG is support for a - "Dual-Role" device, which can act as either a device - or a host. The initial role choice can be changed - later, when two dual-role devices talk to each other. + SH7722 has USB like the M66592. - Select this only if your OMAP board has a Mini-AB connector. + The transfer rate is very slow when use "Ethernet Gadget". + However, this problem is improved if change a value of + NET_IP_ALIGN to 4. -config USB_GADGET_S3C2410 - boolean "S3C2410 USB Device Controller" - depends on ARCH_S3C2410 +# +# Controllers available only in discrete form (and all PCI controllers) +# + +config USB_GADGET_AMD5536UDC + boolean "AMD5536 UDC" + depends on PCI + select USB_GADGET_DUALSPEED help - Samsung's S3C2410 is an ARM-4 processor with an integrated - full speed USB 1.1 device controller. It has 4 configurable - endpoints, as well as endpoint zero (for control transfers). + The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. + It is a USB Highspeed DMA capable USB device controller. Beside ep0 + it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). + The UDC port supports OTG operation, and may be used as a host port + if it's not being used to implement peripheral or OTG roles. - This driver has been tested on the S3C2410, S3C2412, and - S3C2440 processors. + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "amd5536udc" and force all + gadget drivers to also be dynamically linked. -config USB_S3C2410 +config USB_AMD5536UDC tristate - depends on USB_GADGET_S3C2410 + depends on USB_GADGET_AMD5536UDC default USB_GADGET select USB_GADGET_SELECTED -config USB_S3C2410_DEBUG - boolean "S3C2410 udc debug messages" - depends on USB_GADGET_S3C2410 +config USB_GADGET_FSL_QE + boolean "Freescale QE/CPM USB Device Controller" + depends on FSL_SOC && (QUICC_ENGINE || CPM) + help + Some of Freescale PowerPC processors have a Full Speed + QE/CPM2 USB controller, which support device mode with 4 + programmable endpoints. This driver supports the + controller in the MPC8360 and MPC8272, and should work with + controllers having QE or CPM2, given minor tweaks. -config USB_GADGET_AT91 - boolean "AT91 USB Device Port" - depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 + Set CONFIG_USB_GADGET to "m" to build this driver as a + dynmically linked module called "fsl_qe_udc". + +config USB_FSL_QE + tristate + depends on USB_GADGET_FSL_QE + default USB_GADGET select USB_GADGET_SELECTED + +config USB_GADGET_NET2280 + boolean "NetChip 228x" + depends on PCI + select USB_GADGET_DUALSPEED help - Many Atmel AT91 processors (such as the AT91RM2000) have a - full speed USB Device Port with support for five configurable - endpoints (plus endpoint zero). + NetChip 2280 / 2282 is a PCI based USB peripheral controller which + supports both full and high speed USB 2.0 data transfers. + + It has six configurable endpoints, as well as endpoint zero + (for control transfers) and several endpoints with dedicated + functions. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "at91_udc" and force all + dynamically linked module called "net2280" and force all gadget drivers to also be dynamically linked. -config USB_AT91 +config USB_NET2280 tristate - depends on USB_GADGET_AT91 + depends on USB_GADGET_NET2280 + default USB_GADGET + select USB_GADGET_SELECTED + +config USB_GADGET_GOKU + boolean "Toshiba TC86C001 'Goku-S'" + depends on PCI + help + The Toshiba TC86C001 is a PCI device which includes controllers + for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI). + + The device controller has three configurable (bulk or interrupt) + endpoints, plus endpoint zero (for control transfers). + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "goku_udc" and to force all + gadget drivers to also be dynamically linked. + +config USB_GOKU + tristate + depends on USB_GADGET_GOKU default USB_GADGET + select USB_GADGET_SELECTED + + +# +# LAST -- dummy/emulated controller +# config USB_GADGET_DUMMY_HCD boolean "Dummy HCD (DEVELOPMENT)" @@ -553,19 +612,23 @@ config USB_FILE_STORAGE_TEST normal operation. config USB_G_SERIAL - tristate "Serial Gadget (with CDC ACM support)" + tristate "Serial Gadget (with CDC ACM and CDC OBEX support)" help The Serial Gadget talks to the Linux-USB generic serial driver. This driver supports a CDC-ACM module option, which can be used to interoperate with MS-Windows hosts or with the Linux-USB "cdc-acm" driver. + This driver also supports a CDC-OBEX option. You will need a + user space OBEX server talking to /dev/ttyGS*, since the kernel + itself doesn't implement the OBEX protocol. + Say "y" to link the driver statically, or "m" to build a dynamically linked module called "g_serial". For more information, see Documentation/usb/gadget_serial.txt which includes instructions and a "driver info file" needed to - make MS-Windows work with this driver. + make MS-Windows work with CDC ACM. config USB_MIDI_GADGET tristate "MIDI Gadget (EXPERIMENTAL)" diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 2267fa0b51b2..bd4041b47dce 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_USB_AT91) += at91_udc.o obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o obj-$(CONFIG_USB_M66592) += m66592-udc.o +obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o # # USB gadget drivers diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index a724fc149850..5495b171cf29 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -155,7 +155,6 @@ static struct usb_configuration cdc_config_driver = { .bConfigurationValue = 1, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 85c876c1f150..f2da0269e1b1 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -128,6 +128,70 @@ done: } /** + * usb_function_deactivate - prevent function and gadget enumeration + * @function: the function that isn't yet ready to respond + * + * Blocks response of the gadget driver to host enumeration by + * preventing the data line pullup from being activated. This is + * normally called during @bind() processing to change from the + * initial "ready to respond" state, or when a required resource + * becomes available. + * + * For example, drivers that serve as a passthrough to a userspace + * daemon can block enumeration unless that daemon (such as an OBEX, + * MTP, or print server) is ready to handle host requests. + * + * Not all systems support software control of their USB peripheral + * data pullups. + * + * Returns zero on success, else negative errno. + */ +int usb_function_deactivate(struct usb_function *function) +{ + struct usb_composite_dev *cdev = function->config->cdev; + int status = 0; + + spin_lock(&cdev->lock); + + if (cdev->deactivations == 0) + status = usb_gadget_disconnect(cdev->gadget); + if (status == 0) + cdev->deactivations++; + + spin_unlock(&cdev->lock); + return status; +} + +/** + * usb_function_activate - allow function and gadget enumeration + * @function: function on which usb_function_activate() was called + * + * Reverses effect of usb_function_deactivate(). If no more functions + * are delaying their activation, the gadget driver will respond to + * host enumeration procedures. + * + * Returns zero on success, else negative errno. + */ +int usb_function_activate(struct usb_function *function) +{ + struct usb_composite_dev *cdev = function->config->cdev; + int status = 0; + + spin_lock(&cdev->lock); + + if (WARN_ON(cdev->deactivations == 0)) + status = -EINVAL; + else { + cdev->deactivations--; + if (cdev->deactivations == 0) + status = usb_gadget_connect(cdev->gadget); + } + + spin_unlock(&cdev->lock); + return status; +} + +/** * usb_interface_id() - allocate an unused interface ID * @config: configuration associated with the interface * @function: function handling the interface @@ -181,7 +245,7 @@ static int config_buf(struct usb_configuration *config, c->bConfigurationValue = config->bConfigurationValue; c->iConfiguration = config->iConfiguration; c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes; - c->bMaxPower = config->bMaxPower; + c->bMaxPower = config->bMaxPower ? : (CONFIG_USB_GADGET_VBUS_DRAW / 2); /* There may be e.g. OTG descriptors */ if (config->descriptors) { @@ -368,7 +432,7 @@ static int set_config(struct usb_composite_dev *cdev, } /* when we return, be sure our power usage is valid */ - power = 2 * c->bMaxPower; + power = c->bMaxPower ? (2 * c->bMaxPower) : CONFIG_USB_GADGET_VBUS_DRAW; done: usb_gadget_vbus_draw(gadget, power); return result; diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 7600a0c78753..9064696636ac 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -82,6 +82,7 @@ struct dummy_ep { const struct usb_endpoint_descriptor *desc; struct usb_ep ep; unsigned halted : 1; + unsigned wedged : 1; unsigned already_seen : 1; unsigned setup_stage : 1; }; @@ -436,6 +437,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) /* at this point real hardware should be NAKing transfers * to that endpoint, until a buffer is queued to it. */ + ep->halted = ep->wedged = 0; retval = 0; done: return retval; @@ -597,7 +599,7 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req) } static int -dummy_set_halt (struct usb_ep *_ep, int value) +dummy_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) { struct dummy_ep *ep; struct dummy *dum; @@ -609,16 +611,32 @@ dummy_set_halt (struct usb_ep *_ep, int value) if (!dum->driver) return -ESHUTDOWN; if (!value) - ep->halted = 0; + ep->halted = ep->wedged = 0; else if (ep->desc && (ep->desc->bEndpointAddress & USB_DIR_IN) && !list_empty (&ep->queue)) return -EAGAIN; - else + else { ep->halted = 1; + if (wedged) + ep->wedged = 1; + } /* FIXME clear emulated data toggle too */ return 0; } +static int +dummy_set_halt(struct usb_ep *_ep, int value) +{ + return dummy_set_halt_and_wedge(_ep, value, 0); +} + +static int dummy_set_wedge(struct usb_ep *_ep) +{ + if (!_ep || _ep->name == ep0name) + return -EINVAL; + return dummy_set_halt_and_wedge(_ep, 1, 1); +} + static const struct usb_ep_ops dummy_ep_ops = { .enable = dummy_enable, .disable = dummy_disable, @@ -630,6 +648,7 @@ static const struct usb_ep_ops dummy_ep_ops = { .dequeue = dummy_dequeue, .set_halt = dummy_set_halt, + .set_wedge = dummy_set_wedge, }; /*-------------------------------------------------------------------------*/ @@ -760,7 +779,8 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver) ep->ep.name = ep_name [i]; ep->ep.ops = &dummy_ep_ops; list_add_tail (&ep->ep.ep_list, &dum->gadget.ep_list); - ep->halted = ep->already_seen = ep->setup_stage = 0; + ep->halted = ep->wedged = ep->already_seen = + ep->setup_stage = 0; ep->ep.maxpacket = ~0; ep->last_io = jiffies; ep->gadget = &dum->gadget; @@ -1351,7 +1371,7 @@ restart: } else if (setup.bRequestType == Ep_Request) { // endpoint halt ep2 = find_endpoint (dum, w_index); - if (!ep2) { + if (!ep2 || ep2->ep.name == ep0name) { value = -EOPNOTSUPP; break; } @@ -1380,7 +1400,8 @@ restart: value = -EOPNOTSUPP; break; } - ep2->halted = 0; + if (!ep2->wedged) + ep2->halted = 0; value = 0; status = 0; } diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 944c8e889ab4..37252d0012a7 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -242,7 +242,6 @@ static struct usb_configuration rndis_config_driver = { .bConfigurationValue = 2, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ @@ -271,7 +270,6 @@ static struct usb_configuration eth_config_driver = { .bConfigurationValue = 1, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index 87dde012dacc..8affe1dfc2c1 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -352,7 +352,6 @@ static struct usb_configuration loopback_driver = { .bind = loopback_bind_config, .bConfigurationValue = 2, .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ /* .iConfiguration = DYNAMIC */ }; diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c new file mode 100644 index 000000000000..80c2e7e9622f --- /dev/null +++ b/drivers/usb/gadget/f_obex.c @@ -0,0 +1,493 @@ +/* + * f_obex.c -- USB CDC OBEX function driver + * + * Copyright (C) 2008 Nokia Corporation + * Contact: Felipe Balbi <felipe.balbi@nokia.com> + * + * Based on f_acm.c by Al Borchers and David Brownell. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kernel.h> +#include <linux/utsname.h> +#include <linux/device.h> + +#include "u_serial.h" +#include "gadget_chips.h" + + +/* + * This CDC OBEX function support just packages a TTY-ish byte stream. + * A user mode server will put it into "raw" mode and handle all the + * relevant protocol details ... this is just a kernel passthrough. + * When possible, we prevent gadget enumeration until that server is + * ready to handle the commands. + */ + +struct obex_ep_descs { + struct usb_endpoint_descriptor *obex_in; + struct usb_endpoint_descriptor *obex_out; +}; + +struct f_obex { + struct gserial port; + u8 ctrl_id; + u8 data_id; + u8 port_num; + u8 can_activate; + + struct obex_ep_descs fs; + struct obex_ep_descs hs; +}; + +static inline struct f_obex *func_to_obex(struct usb_function *f) +{ + return container_of(f, struct f_obex, port.func); +} + +static inline struct f_obex *port_to_obex(struct gserial *p) +{ + return container_of(p, struct f_obex, port); +} + +/*-------------------------------------------------------------------------*/ + +#define OBEX_CTRL_IDX 0 +#define OBEX_DATA_IDX 1 + +static struct usb_string obex_string_defs[] = { + [OBEX_CTRL_IDX].s = "CDC Object Exchange (OBEX)", + [OBEX_DATA_IDX].s = "CDC OBEX Data", + { }, /* end of list */ +}; + +static struct usb_gadget_strings obex_string_table = { + .language = 0x0409, /* en-US */ + .strings = obex_string_defs, +}; + +static struct usb_gadget_strings *obex_strings[] = { + &obex_string_table, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static struct usb_interface_descriptor obex_control_intf __initdata = { + .bLength = sizeof(obex_control_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_OBEX, +}; + +static struct usb_interface_descriptor obex_data_nop_intf __initdata = { + .bLength = sizeof(obex_data_nop_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_CDC_DATA, +}; + +static struct usb_interface_descriptor obex_data_intf __initdata = { + .bLength = sizeof(obex_data_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 2, + + .bAlternateSetting = 1, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_CDC_DATA, +}; + +static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = { + .bLength = sizeof(obex_cdc_header_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_HEADER_TYPE, + .bcdCDC = __constant_cpu_to_le16(0x0120), +}; + +static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = { + .bLength = sizeof(obex_cdc_union_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_UNION_TYPE, + .bMasterInterface0 = 1, + .bSlaveInterface0 = 2, +}; + +static struct usb_cdc_obex_desc obex_desc __initdata = { + .bLength = sizeof(obex_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_OBEX_TYPE, + .bcdVersion = __constant_cpu_to_le16(0x0100), +}; + +/* High-Speed Support */ + +static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *hs_function[] __initdata = { + (struct usb_descriptor_header *) &obex_control_intf, + (struct usb_descriptor_header *) &obex_cdc_header_desc, + (struct usb_descriptor_header *) &obex_desc, + (struct usb_descriptor_header *) &obex_cdc_union_desc, + + (struct usb_descriptor_header *) &obex_data_nop_intf, + (struct usb_descriptor_header *) &obex_data_intf, + (struct usb_descriptor_header *) &obex_hs_ep_in_desc, + (struct usb_descriptor_header *) &obex_hs_ep_out_desc, + NULL, +}; + +/* Full-Speed Support */ + +static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *fs_function[] __initdata = { + (struct usb_descriptor_header *) &obex_control_intf, + (struct usb_descriptor_header *) &obex_cdc_header_desc, + (struct usb_descriptor_header *) &obex_desc, + (struct usb_descriptor_header *) &obex_cdc_union_desc, + + (struct usb_descriptor_header *) &obex_data_nop_intf, + (struct usb_descriptor_header *) &obex_data_intf, + (struct usb_descriptor_header *) &obex_fs_ep_in_desc, + (struct usb_descriptor_header *) &obex_fs_ep_out_desc, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt) +{ + struct f_obex *obex = func_to_obex(f); + struct usb_composite_dev *cdev = f->config->cdev; + + if (intf == obex->ctrl_id) { + if (alt != 0) + goto fail; + /* NOP */ + DBG(cdev, "reset obex ttyGS%d control\n", obex->port_num); + + } else if (intf == obex->data_id) { + if (alt > 1) + goto fail; + + if (obex->port.in->driver_data) { + DBG(cdev, "reset obex ttyGS%d\n", obex->port_num); + gserial_disconnect(&obex->port); + } + + if (!obex->port.in_desc) { + DBG(cdev, "init obex ttyGS%d\n", obex->port_num); + obex->port.in_desc = ep_choose(cdev->gadget, + obex->hs.obex_in, obex->fs.obex_in); + obex->port.out_desc = ep_choose(cdev->gadget, + obex->hs.obex_out, obex->fs.obex_out); + } + + if (alt == 1) { + DBG(cdev, "activate obex ttyGS%d\n", obex->port_num); + gserial_connect(&obex->port, obex->port_num); + } + + } else + goto fail; + + return 0; + +fail: + return -EINVAL; +} + +static int obex_get_alt(struct usb_function *f, unsigned intf) +{ + struct f_obex *obex = func_to_obex(f); + + if (intf == obex->ctrl_id) + return 0; + + return obex->port.in->driver_data ? 1 : 0; +} + +static void obex_disable(struct usb_function *f) +{ + struct f_obex *obex = func_to_obex(f); + struct usb_composite_dev *cdev = f->config->cdev; + + DBG(cdev, "obex ttyGS%d disable\n", obex->port_num); + gserial_disconnect(&obex->port); +} + +/*-------------------------------------------------------------------------*/ + +static void obex_connect(struct gserial *g) +{ + struct f_obex *obex = port_to_obex(g); + struct usb_composite_dev *cdev = g->func.config->cdev; + int status; + + if (!obex->can_activate) + return; + + status = usb_function_activate(&g->func); + if (status) + DBG(cdev, "obex ttyGS%d function activate --> %d\n", + obex->port_num, status); +} + +static void obex_disconnect(struct gserial *g) +{ + struct f_obex *obex = port_to_obex(g); + struct usb_composite_dev *cdev = g->func.config->cdev; + int status; + + if (!obex->can_activate) + return; + + status = usb_function_deactivate(&g->func); + if (status) + DBG(cdev, "obex ttyGS%d function deactivate --> %d\n", + obex->port_num, status); +} + +/*-------------------------------------------------------------------------*/ + +static int __init +obex_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_obex *obex = func_to_obex(f); + int status; + struct usb_ep *ep; + + /* allocate instance-specific interface IDs, and patch descriptors */ + + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + obex->ctrl_id = status; + + obex_control_intf.bInterfaceNumber = status; + obex_cdc_union_desc.bMasterInterface0 = status; + + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + obex->data_id = status; + + obex_data_nop_intf.bInterfaceNumber = status; + obex_data_intf.bInterfaceNumber = status; + obex_cdc_union_desc.bSlaveInterface0 = status; + + /* allocate instance-specific endpoints */ + + ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_in_desc); + if (!ep) + goto fail; + obex->port.in = ep; + ep->driver_data = cdev; /* claim */ + + ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_out_desc); + if (!ep) + goto fail; + obex->port.out = ep; + ep->driver_data = cdev; /* claim */ + + /* copy descriptors, and track endpoint copies */ + f->descriptors = usb_copy_descriptors(fs_function); + + obex->fs.obex_in = usb_find_endpoint(fs_function, + f->descriptors, &obex_fs_ep_in_desc); + obex->fs.obex_out = usb_find_endpoint(fs_function, + f->descriptors, &obex_fs_ep_out_desc); + + /* support all relevant hardware speeds... we expect that when + * hardware is dual speed, all bulk-capable endpoints work at + * both speeds + */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + + obex_hs_ep_in_desc.bEndpointAddress = + obex_fs_ep_in_desc.bEndpointAddress; + obex_hs_ep_out_desc.bEndpointAddress = + obex_fs_ep_out_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->hs_descriptors = usb_copy_descriptors(hs_function); + + obex->hs.obex_in = usb_find_endpoint(hs_function, + f->descriptors, &obex_hs_ep_in_desc); + obex->hs.obex_out = usb_find_endpoint(hs_function, + f->descriptors, &obex_hs_ep_out_desc); + } + + /* Avoid letting this gadget enumerate until the userspace + * OBEX server is active. + */ + status = usb_function_deactivate(f); + if (status < 0) + WARNING(cdev, "obex ttyGS%d: can't prevent enumeration, %d\n", + obex->port_num, status); + else + obex->can_activate = true; + + + DBG(cdev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n", + obex->port_num, + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + obex->port.in->name, obex->port.out->name); + + return 0; + +fail: + /* we might as well release our claims on endpoints */ + if (obex->port.out) + obex->port.out->driver_data = NULL; + if (obex->port.in) + obex->port.in->driver_data = NULL; + + ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status); + + return status; +} + +static void +obex_unbind(struct usb_configuration *c, struct usb_function *f) +{ + if (gadget_is_dualspeed(c->cdev->gadget)) + usb_free_descriptors(f->hs_descriptors); + usb_free_descriptors(f->descriptors); + kfree(func_to_obex(f)); +} + +/* Some controllers can't support CDC OBEX ... */ +static inline bool can_support_obex(struct usb_configuration *c) +{ + /* Since the first interface is a NOP, we can ignore the + * issue of multi-interface support on most controllers. + * + * Altsettings are mandatory, however... + */ + if (!gadget_supports_altsettings(c->cdev->gadget)) + return false; + + /* everything else is *probably* fine ... */ + return true; +} + +/** + * obex_bind_config - add a CDC OBEX function to a configuration + * @c: the configuration to support the CDC OBEX instance + * @port_num: /dev/ttyGS* port this interface will use + * Context: single threaded during gadget setup + * + * Returns zero on success, else negative errno. + * + * Caller must have called @gserial_setup() with enough ports to + * handle all the ones it binds. Caller is also responsible + * for calling @gserial_cleanup() before module unload. + */ +int __init obex_bind_config(struct usb_configuration *c, u8 port_num) +{ + struct f_obex *obex; + int status; + + if (!can_support_obex(c)) + return -EINVAL; + + /* maybe allocate device-global string IDs, and patch descriptors */ + if (obex_string_defs[OBEX_CTRL_IDX].id == 0) { + status = usb_string_id(c->cdev); + if (status < 0) + return status; + obex_string_defs[OBEX_CTRL_IDX].id = status; + + obex_control_intf.iInterface = status; + + status = usb_string_id(c->cdev); + if (status < 0) + return status; + obex_string_defs[OBEX_DATA_IDX].id = status; + + obex_data_nop_intf.iInterface = + obex_data_intf.iInterface = status; + } + + /* allocate and initialize one new instance */ + obex = kzalloc(sizeof *obex, GFP_KERNEL); + if (!obex) + return -ENOMEM; + + obex->port_num = port_num; + + obex->port.connect = obex_connect; + obex->port.disconnect = obex_disconnect; + + obex->port.func.name = "obex"; + obex->port.func.strings = obex_strings; + /* descriptors are per-instance copies */ + obex->port.func.bind = obex_bind; + obex->port.func.unbind = obex_unbind; + obex->port.func.set_alt = obex_set_alt; + obex->port.func.get_alt = obex_get_alt; + obex->port.func.disable = obex_disable; + + status = usb_add_function(c, &obex->port.func); + if (status) + kfree(obex); + + return status; +} + +MODULE_AUTHOR("Felipe Balbi"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index f18c3a14d72a..dc84d26d2835 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -552,7 +552,6 @@ static struct usb_configuration sourcesink_driver = { .setup = sourcesink_setup, .bConfigurationValue = 3, .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ /* .iConfiguration = DYNAMIC */ }; diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 0c632d22a631..c4e62a6297d7 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -851,7 +851,7 @@ config_desc = { .bConfigurationValue = CONFIG_VALUE, .iConfiguration = STRING_CONFIG, .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, // self-powered + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; static struct usb_otg_descriptor @@ -2676,11 +2676,24 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size, /* Verify the length of the command itself */ if (cmnd_size != fsg->cmnd_size) { - /* Special case workaround: MS-Windows issues REQUEST SENSE - * with cbw->Length == 12 (it should be 6). */ - if (fsg->cmnd[0] == SC_REQUEST_SENSE && fsg->cmnd_size == 12) + /* Special case workaround: There are plenty of buggy SCSI + * implementations. Many have issues with cbw->Length + * field passing a wrong command size. For those cases we + * always try to work around the problem by using the length + * sent by the host side provided it is at least as large + * as the correct command length. + * Examples of such cases would be MS-Windows, which issues + * REQUEST SENSE with cbw->Length == 12 where it should + * be 6, and xbox360 issuing INQUIRY, TEST UNIT READY and + * REQUEST SENSE with cbw->Length == 10 where it should + * be 6 as well. + */ + if (cmnd_size <= fsg->cmnd_size) { + DBG(fsg, "%s is buggy! Expected length %d " + "but we got %d\n", name, + cmnd_size, fsg->cmnd_size); cmnd_size = fsg->cmnd_size; - else { + } else { fsg->phase_error = 1; return -EINVAL; } diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c new file mode 100644 index 000000000000..1fe8b44787b3 --- /dev/null +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -0,0 +1,2760 @@ +/* + * driver/usb/gadget/fsl_qe_udc.c + * + * Copyright (c) 2006-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Xie Xiaobo <X.Xie@freescale.com> + * Li Yang <leoli@freescale.com> + * Based on bareboard code from Shlomi Gridish. + * + * Description: + * Freescle QE/CPM USB Pheripheral Controller Driver + * The controller can be found on MPC8360, MPC8272, and etc. + * MPC8360 Rev 1.1 may need QE mircocode update + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#undef USB_TRACE + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/moduleparam.h> +#include <linux/of_platform.h> +#include <linux/dma-mapping.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <linux/usb/otg.h> +#include <asm/qe.h> +#include <asm/cpm.h> +#include <asm/dma.h> +#include <asm/reg.h> +#include "fsl_qe_udc.h" + +#define DRIVER_DESC "Freescale QE/CPM USB Device Controller driver" +#define DRIVER_AUTHOR "Xie XiaoBo" +#define DRIVER_VERSION "1.0" + +#define DMA_ADDR_INVALID (~(dma_addr_t)0) + +static const char driver_name[] = "fsl_qe_udc"; +static const char driver_desc[] = DRIVER_DESC; + +/*ep name is important in gadget, it should obey the convention of ep_match()*/ +static const char *const ep_name[] = { + "ep0-control", /* everyone has ep0 */ + /* 3 configurable endpoints */ + "ep1", + "ep2", + "ep3", +}; + +static struct usb_endpoint_descriptor qe_ep0_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = 0, + .bmAttributes = USB_ENDPOINT_XFER_CONTROL, + .wMaxPacketSize = USB_MAX_CTRL_PAYLOAD, +}; + +/* it is initialized in probe() */ +static struct qe_udc *udc_controller; + +/******************************************************************** + * Internal Used Function Start +********************************************************************/ +/*----------------------------------------------------------------- + * done() - retire a request; caller blocked irqs + *--------------------------------------------------------------*/ +static void done(struct qe_ep *ep, struct qe_req *req, int status) +{ + struct qe_udc *udc = ep->udc; + unsigned char stopped = ep->stopped; + + /* the req->queue pointer is used by ep_queue() func, in which + * the request will be added into a udc_ep->queue 'd tail + * so here the req will be dropped from the ep->queue + */ + list_del_init(&req->queue); + + /* req.status should be set as -EINPROGRESS in ep_queue() */ + if (req->req.status == -EINPROGRESS) + req->req.status = status; + else + status = req->req.status; + + if (req->mapped) { + dma_unmap_single(udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE + : DMA_FROM_DEVICE); + req->req.dma = DMA_ADDR_INVALID; + req->mapped = 0; + } else + dma_sync_single_for_cpu(udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE + : DMA_FROM_DEVICE); + + if (status && (status != -ESHUTDOWN)) + dev_vdbg(udc->dev, "complete %s req %p stat %d len %u/%u\n", + ep->ep.name, &req->req, status, + req->req.actual, req->req.length); + + /* don't modify queue heads during completion callback */ + ep->stopped = 1; + spin_unlock(&udc->lock); + + /* this complete() should a func implemented by gadget layer, + * eg fsg->bulk_in_complete() */ + if (req->req.complete) + req->req.complete(&ep->ep, &req->req); + + spin_lock(&udc->lock); + + ep->stopped = stopped; +} + +/*----------------------------------------------------------------- + * nuke(): delete all requests related to this ep + *--------------------------------------------------------------*/ +static void nuke(struct qe_ep *ep, int status) +{ + /* Whether this eq has request linked */ + while (!list_empty(&ep->queue)) { + struct qe_req *req = NULL; + req = list_entry(ep->queue.next, struct qe_req, queue); + + done(ep, req, status); + } +} + +/*---------------------------------------------------------------------------* + * USB and Endpoint manipulate process, include parameter and register * + *---------------------------------------------------------------------------*/ +/* @value: 1--set stall 0--clean stall */ +static int qe_eprx_stall_change(struct qe_ep *ep, int value) +{ + u16 tem_usep; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]); + tem_usep = tem_usep & ~USB_RHS_MASK; + if (value == 1) + tem_usep |= USB_RHS_STALL; + else if (ep->dir == USB_DIR_IN) + tem_usep |= USB_RHS_IGNORE_OUT; + + out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep); + return 0; +} + +static int qe_eptx_stall_change(struct qe_ep *ep, int value) +{ + u16 tem_usep; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]); + tem_usep = tem_usep & ~USB_THS_MASK; + if (value == 1) + tem_usep |= USB_THS_STALL; + else if (ep->dir == USB_DIR_OUT) + tem_usep |= USB_THS_IGNORE_IN; + + out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep); + + return 0; +} + +static int qe_ep0_stall(struct qe_udc *udc) +{ + qe_eptx_stall_change(&udc->eps[0], 1); + qe_eprx_stall_change(&udc->eps[0], 1); + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = 0; + return 0; +} + +static int qe_eprx_nack(struct qe_ep *ep) +{ + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + if (ep->state == EP_STATE_IDLE) { + /* Set the ep's nack */ + clrsetbits_be16(&udc->usb_regs->usb_usep[epnum], + USB_RHS_MASK, USB_RHS_NACK); + + /* Mask Rx and Busy interrupts */ + clrbits16(&udc->usb_regs->usb_usbmr, + (USB_E_RXB_MASK | USB_E_BSY_MASK)); + + ep->state = EP_STATE_NACK; + } + return 0; +} + +static int qe_eprx_normal(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + + if (ep->state == EP_STATE_NACK) { + clrsetbits_be16(&udc->usb_regs->usb_usep[ep->epnum], + USB_RTHS_MASK, USB_THS_IGNORE_IN); + + /* Unmask RX interrupts */ + out_be16(&udc->usb_regs->usb_usber, + USB_E_BSY_MASK | USB_E_RXB_MASK); + setbits16(&udc->usb_regs->usb_usbmr, + (USB_E_RXB_MASK | USB_E_BSY_MASK)); + + ep->state = EP_STATE_IDLE; + ep->has_data = 0; + } + + return 0; +} + +static int qe_ep_cmd_stoptx(struct qe_ep *ep) +{ + if (ep->udc->soc_type == PORT_CPM) + cpm_command(CPM_USB_STOP_TX | (ep->epnum << CPM_USB_EP_SHIFT), + CPM_USB_STOP_TX_OPCODE); + else + qe_issue_cmd(QE_USB_STOP_TX, QE_CR_SUBBLOCK_USB, + ep->epnum, 0); + + return 0; +} + +static int qe_ep_cmd_restarttx(struct qe_ep *ep) +{ + if (ep->udc->soc_type == PORT_CPM) + cpm_command(CPM_USB_RESTART_TX | (ep->epnum << + CPM_USB_EP_SHIFT), CPM_USB_RESTART_TX_OPCODE); + else + qe_issue_cmd(QE_USB_RESTART_TX, QE_CR_SUBBLOCK_USB, + ep->epnum, 0); + + return 0; +} + +static int qe_ep_flushtxfifo(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + int i; + + i = (int)ep->epnum; + + qe_ep_cmd_stoptx(ep); + out_8(&udc->usb_regs->usb_uscom, + USB_CMD_FLUSH_FIFO | (USB_CMD_EP_MASK & (ep->epnum))); + out_be16(&udc->ep_param[i]->tbptr, in_be16(&udc->ep_param[i]->tbase)); + out_be32(&udc->ep_param[i]->tstate, 0); + out_be16(&udc->ep_param[i]->tbcnt, 0); + + ep->c_txbd = ep->txbase; + ep->n_txbd = ep->txbase; + qe_ep_cmd_restarttx(ep); + return 0; +} + +static int qe_ep_filltxfifo(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + + out_8(&udc->usb_regs->usb_uscom, + USB_CMD_STR_FIFO | (USB_CMD_EP_MASK & (ep->epnum))); + return 0; +} + +static int qe_epbds_reset(struct qe_udc *udc, int pipe_num) +{ + struct qe_ep *ep; + u32 bdring_len; + struct qe_bd __iomem *bd; + int i; + + ep = &udc->eps[pipe_num]; + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + bd = ep->rxbase; + for (i = 0; i < (bdring_len - 1); i++) { + out_be32((u32 __iomem *)bd, R_E | R_I); + bd++; + } + out_be32((u32 __iomem *)bd, R_E | R_I | R_W); + + bd = ep->txbase; + for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32((u32 __iomem *)bd, T_W); + + return 0; +} + +static int qe_ep_reset(struct qe_udc *udc, int pipe_num) +{ + struct qe_ep *ep; + u16 tmpusep; + + ep = &udc->eps[pipe_num]; + tmpusep = in_be16(&udc->usb_regs->usb_usep[pipe_num]); + tmpusep &= ~USB_RTHS_MASK; + + switch (ep->dir) { + case USB_DIR_BOTH: + qe_ep_flushtxfifo(ep); + break; + case USB_DIR_OUT: + tmpusep |= USB_THS_IGNORE_IN; + break; + case USB_DIR_IN: + qe_ep_flushtxfifo(ep); + tmpusep |= USB_RHS_IGNORE_OUT; + break; + default: + break; + } + out_be16(&udc->usb_regs->usb_usep[pipe_num], tmpusep); + + qe_epbds_reset(udc, pipe_num); + + return 0; +} + +static int qe_ep_toggledata01(struct qe_ep *ep) +{ + ep->data01 ^= 0x1; + return 0; +} + +static int qe_ep_bd_init(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + unsigned long tmp_addr = 0; + struct usb_ep_para __iomem *epparam; + int i; + struct qe_bd __iomem *bd; + int bdring_len; + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + epparam = udc->ep_param[pipe_num]; + /* alloc multi-ram for BD rings and set the ep parameters */ + tmp_addr = cpm_muram_alloc(sizeof(struct qe_bd) * (bdring_len + + USB_BDRING_LEN_TX), QE_ALIGNMENT_OF_BD); + out_be16(&epparam->rbase, (u16)tmp_addr); + out_be16(&epparam->tbase, (u16)(tmp_addr + + (sizeof(struct qe_bd) * bdring_len))); + + out_be16(&epparam->rbptr, in_be16(&epparam->rbase)); + out_be16(&epparam->tbptr, in_be16(&epparam->tbase)); + + ep->rxbase = cpm_muram_addr(tmp_addr); + ep->txbase = cpm_muram_addr(tmp_addr + (sizeof(struct qe_bd) + * bdring_len)); + ep->n_rxbd = ep->rxbase; + ep->e_rxbd = ep->rxbase; + ep->n_txbd = ep->txbase; + ep->c_txbd = ep->txbase; + ep->data01 = 0; /* data0 */ + + /* Init TX and RX bds */ + bd = ep->rxbase; + for (i = 0; i < bdring_len - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, R_W); + + bd = ep->txbase; + for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, T_W); + + return 0; +} + +static int qe_ep_rxbd_update(struct qe_ep *ep) +{ + unsigned int size; + int i; + unsigned int tmp; + struct qe_bd __iomem *bd; + unsigned int bdring_len; + + if (ep->rxbase == NULL) + return -EINVAL; + + bd = ep->rxbase; + + ep->rxframe = kmalloc(sizeof(*ep->rxframe), GFP_ATOMIC); + if (ep->rxframe == NULL) { + dev_err(ep->udc->dev, "malloc rxframe failed\n"); + return -ENOMEM; + } + + qe_frame_init(ep->rxframe); + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (bdring_len + 1); + ep->rxbuffer = kzalloc(size, GFP_ATOMIC); + if (ep->rxbuffer == NULL) { + dev_err(ep->udc->dev, "malloc rxbuffer failed,size=%d\n", + size); + kfree(ep->rxframe); + return -ENOMEM; + } + + ep->rxbuf_d = virt_to_phys((void *)ep->rxbuffer); + if (ep->rxbuf_d == DMA_ADDR_INVALID) { + ep->rxbuf_d = dma_map_single(udc_controller->gadget.dev.parent, + ep->rxbuffer, + size, + DMA_FROM_DEVICE); + ep->rxbufmap = 1; + } else { + dma_sync_single_for_device(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbufmap = 0; + } + + size = ep->ep.maxpacket + USB_CRC_SIZE + 2; + tmp = ep->rxbuf_d; + tmp = (u32)(((tmp >> 2) << 2) + 4); + + for (i = 0; i < bdring_len - 1; i++) { + out_be32(&bd->buf, tmp); + out_be32((u32 __iomem *)bd, (R_E | R_I)); + tmp = tmp + size; + bd++; + } + out_be32(&bd->buf, tmp); + out_be32((u32 __iomem *)bd, (R_E | R_I | R_W)); + + return 0; +} + +static int qe_ep_register_init(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + struct usb_ep_para __iomem *epparam; + u16 usep, logepnum; + u16 tmp; + u8 rtfcr = 0; + + epparam = udc->ep_param[pipe_num]; + + usep = 0; + logepnum = (ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + usep |= (logepnum << USB_EPNUM_SHIFT); + + switch (ep->desc->bmAttributes & 0x03) { + case USB_ENDPOINT_XFER_BULK: + usep |= USB_TRANS_BULK; + break; + case USB_ENDPOINT_XFER_ISOC: + usep |= USB_TRANS_ISO; + break; + case USB_ENDPOINT_XFER_INT: + usep |= USB_TRANS_INT; + break; + default: + usep |= USB_TRANS_CTR; + break; + } + + switch (ep->dir) { + case USB_DIR_OUT: + usep |= USB_THS_IGNORE_IN; + break; + case USB_DIR_IN: + usep |= USB_RHS_IGNORE_OUT; + break; + default: + break; + } + out_be16(&udc->usb_regs->usb_usep[pipe_num], usep); + + rtfcr = 0x30; + out_8(&epparam->rbmr, rtfcr); + out_8(&epparam->tbmr, rtfcr); + + tmp = (u16)(ep->ep.maxpacket + USB_CRC_SIZE); + /* MRBLR must be divisble by 4 */ + tmp = (u16)(((tmp >> 2) << 2) + 4); + out_be16(&epparam->mrblr, tmp); + + return 0; +} + +static int qe_ep_init(struct qe_udc *udc, + unsigned char pipe_num, + const struct usb_endpoint_descriptor *desc) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + unsigned long flags; + int reval = 0; + u16 max = 0; + + max = le16_to_cpu(desc->wMaxPacketSize); + + /* check the max package size validate for this endpoint */ + /* Refer to USB2.0 spec table 9-13, + */ + if (pipe_num != 0) { + switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { + case USB_ENDPOINT_XFER_BULK: + if (strstr(ep->ep.name, "-iso") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if ((max == 128) || (max == 256) || (max == 512)) + break; + default: + switch (max) { + case 4: + case 8: + case 16: + case 32: + case 64: + break; + default: + case USB_SPEED_LOW: + goto en_done; + } + } + break; + case USB_ENDPOINT_XFER_INT: + if (strstr(ep->ep.name, "-iso")) /* bulk is ok */ + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if (max <= 1024) + break; + case USB_SPEED_FULL: + if (max <= 64) + break; + default: + if (max <= 8) + break; + goto en_done; + } + break; + case USB_ENDPOINT_XFER_ISOC: + if (strstr(ep->ep.name, "-bulk") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if (max <= 1024) + break; + case USB_SPEED_FULL: + if (max <= 1023) + break; + default: + goto en_done; + } + break; + case USB_ENDPOINT_XFER_CONTROL: + if (strstr(ep->ep.name, "-iso") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + case USB_SPEED_FULL: + switch (max) { + case 1: + case 2: + case 4: + case 8: + case 16: + case 32: + case 64: + break; + default: + goto en_done; + } + case USB_SPEED_LOW: + switch (max) { + case 1: + case 2: + case 4: + case 8: + break; + default: + goto en_done; + } + default: + goto en_done; + } + break; + + default: + goto en_done; + } + } /* if ep0*/ + + spin_lock_irqsave(&udc->lock, flags); + + /* initialize ep structure */ + ep->ep.maxpacket = max; + ep->tm = (u8)(desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); + ep->desc = desc; + ep->stopped = 0; + ep->init = 1; + + if (pipe_num == 0) { + ep->dir = USB_DIR_BOTH; + udc->ep0_dir = USB_DIR_OUT; + udc->ep0_state = WAIT_FOR_SETUP; + } else { + switch (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) { + case USB_DIR_OUT: + ep->dir = USB_DIR_OUT; + break; + case USB_DIR_IN: + ep->dir = USB_DIR_IN; + default: + break; + } + } + + /* hardware special operation */ + qe_ep_bd_init(udc, pipe_num); + if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_OUT)) { + reval = qe_ep_rxbd_update(ep); + if (reval) + goto en_done1; + } + + if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_IN)) { + ep->txframe = kmalloc(sizeof(*ep->txframe), GFP_ATOMIC); + if (ep->txframe == NULL) { + dev_err(udc->dev, "malloc txframe failed\n"); + goto en_done2; + } + qe_frame_init(ep->txframe); + } + + qe_ep_register_init(udc, pipe_num); + + /* Now HW will be NAKing transfers to that EP, + * until a buffer is queued to it. */ + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +en_done2: + kfree(ep->rxbuffer); + kfree(ep->rxframe); +en_done1: + spin_unlock_irqrestore(&udc->lock, flags); +en_done: + dev_dbg(udc->dev, "failed to initialize %s\n", ep->ep.name); + return -ENODEV; +} + +static inline void qe_usb_enable(void) +{ + setbits8(&udc_controller->usb_regs->usb_usmod, USB_MODE_EN); +} + +static inline void qe_usb_disable(void) +{ + clrbits8(&udc_controller->usb_regs->usb_usmod, USB_MODE_EN); +} + +/*----------------------------------------------------------------------------* + * USB and EP basic manipulate function end * + *----------------------------------------------------------------------------*/ + + +/****************************************************************************** + UDC transmit and receive process + ******************************************************************************/ +static void recycle_one_rxbd(struct qe_ep *ep) +{ + u32 bdstatus; + + bdstatus = in_be32((u32 __iomem *)ep->e_rxbd); + bdstatus = R_I | R_E | (bdstatus & R_W); + out_be32((u32 __iomem *)ep->e_rxbd, bdstatus); + + if (bdstatus & R_W) + ep->e_rxbd = ep->rxbase; + else + ep->e_rxbd++; +} + +static void recycle_rxbds(struct qe_ep *ep, unsigned char stopatnext) +{ + u32 bdstatus; + struct qe_bd __iomem *bd, *nextbd; + unsigned char stop = 0; + + nextbd = ep->n_rxbd; + bd = ep->e_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + + while (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK) && !stop) { + bdstatus = R_E | R_I | (bdstatus & R_W); + out_be32((u32 __iomem *)bd, bdstatus); + + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + if (stopatnext && (bd == nextbd)) + stop = 1; + } + + ep->e_rxbd = bd; +} + +static void ep_recycle_rxbds(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd = ep->n_rxbd; + u32 bdstatus; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + bdstatus = in_be32((u32 __iomem *)bd); + if (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK)) { + bd = ep->rxbase + + ((in_be16(&udc->ep_param[epnum]->rbptr) - + in_be16(&udc->ep_param[epnum]->rbase)) + >> 3); + bdstatus = in_be32((u32 __iomem *)bd); + + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + ep->e_rxbd = bd; + recycle_rxbds(ep, 0); + ep->e_rxbd = ep->n_rxbd; + } else + recycle_rxbds(ep, 1); + + if (in_be16(&udc->usb_regs->usb_usber) & USB_E_BSY_MASK) + out_be16(&udc->usb_regs->usb_usber, USB_E_BSY_MASK); + + if (ep->has_data <= 0 && (!list_empty(&ep->queue))) + qe_eprx_normal(ep); + + ep->localnack = 0; +} + +static void setup_received_handle(struct qe_udc *udc, + struct usb_ctrlrequest *setup); +static int qe_ep_rxframe_handle(struct qe_ep *ep); +static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req); +/* when BD PID is setup, handle the packet */ +static int ep0_setup_handle(struct qe_udc *udc) +{ + struct qe_ep *ep = &udc->eps[0]; + struct qe_frame *pframe; + unsigned int fsize; + u8 *cp; + + pframe = ep->rxframe; + if ((frame_get_info(pframe) & PID_SETUP) + && (udc->ep0_state == WAIT_FOR_SETUP)) { + fsize = frame_get_length(pframe); + if (unlikely(fsize != 8)) + return -EINVAL; + cp = (u8 *)&udc->local_setup_buff; + memcpy(cp, pframe->data, fsize); + ep->data01 = 1; + + /* handle the usb command base on the usb_ctrlrequest */ + setup_received_handle(udc, &udc->local_setup_buff); + return 0; + } + return -EINVAL; +} + +static int qe_ep0_rx(struct qe_udc *udc) +{ + struct qe_ep *ep = &udc->eps[0]; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + u32 bdstatus, length; + u32 vaddr; + + pframe = ep->rxframe; + + if (ep->dir == USB_DIR_IN) { + dev_err(udc->dev, "ep0 not a control endpoint\n"); + return -EINVAL; + } + + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + if (length == USB_CRC_SIZE) { + udc->ep0_state = WAIT_FOR_SETUP; + dev_vdbg(udc->dev, + "receive a ZLP in status phase\n"); + } else { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, + (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_SETUP: + frame_set_info(pframe, PID_SETUP); + break; + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); + break; + default: + frame_set_info(pframe, PID_DATA0); + break; + } + + if ((bdstatus & R_PID) == R_PID_SETUP) + ep0_setup_handle(udc); + else + qe_ep_rxframe_handle(ep); + } + } else { + dev_err(udc->dev, "The receive frame with error!\n"); + } + + /* note: don't clear the rxbd's buffer address */ + recycle_one_rxbd(ep); + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + } + + ep->n_rxbd = bd; + + return 0; +} + +static int qe_ep_rxframe_handle(struct qe_ep *ep) +{ + struct qe_frame *pframe; + u8 framepid = 0; + unsigned int fsize; + u8 *cp; + struct qe_req *req; + + pframe = ep->rxframe; + + if (frame_get_info(pframe) & PID_DATA1) + framepid = 0x1; + + if (framepid != ep->data01) { + dev_err(ep->udc->dev, "the data01 error!\n"); + return -EIO; + } + + fsize = frame_get_length(pframe); + if (list_empty(&ep->queue)) { + dev_err(ep->udc->dev, "the %s have no requeue!\n", ep->name); + } else { + req = list_entry(ep->queue.next, struct qe_req, queue); + + cp = (u8 *)(req->req.buf) + req->req.actual; + if (cp) { + memcpy(cp, pframe->data, fsize); + req->req.actual += fsize; + if ((fsize < ep->ep.maxpacket) || + (req->req.actual >= req->req.length)) { + if (ep->epnum == 0) + ep0_req_complete(ep->udc, req); + else + done(ep, req, 0); + if (list_empty(&ep->queue) && ep->epnum != 0) + qe_eprx_nack(ep); + } + } + } + + qe_ep_toggledata01(ep); + + return 0; +} + +static void ep_rx_tasklet(unsigned long data) +{ + struct qe_udc *udc = (struct qe_udc *)data; + struct qe_ep *ep; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + unsigned long flags; + u32 bdstatus, length; + u32 vaddr, i; + + spin_lock_irqsave(&udc->lock, flags); + + for (i = 1; i < USB_MAX_ENDPOINTS; i++) { + ep = &udc->eps[i]; + + if (ep->dir == USB_DIR_IN || ep->enable_tasklet == 0) { + dev_dbg(udc->dev, + "This is a transmit ep or disable tasklet!\n"); + continue; + } + + pframe = ep->rxframe; + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if (list_empty(&ep->queue)) { + qe_eprx_nack(ep); + dev_dbg(udc->dev, + "The rxep have noreq %d\n", + ep->has_data); + break; + } + + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, + (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); + break; + case R_PID_SETUP: + frame_set_info(pframe, PID_SETUP); + break; + default: + frame_set_info(pframe, PID_DATA0); + break; + } + /* handle the rx frame */ + qe_ep_rxframe_handle(ep); + } else { + dev_err(udc->dev, + "error in received frame\n"); + } + /* note: don't clear the rxbd's buffer address */ + /*clear the length */ + out_be32((u32 __iomem *)bd, bdstatus & BD_STATUS_MASK); + ep->has_data--; + if (!(ep->localnack)) + recycle_one_rxbd(ep); + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + } + + ep->n_rxbd = bd; + + if (ep->localnack) + ep_recycle_rxbds(ep); + + ep->enable_tasklet = 0; + } /* for i=1 */ + + spin_unlock_irqrestore(&udc->lock, flags); +} + +static int qe_ep_rx(struct qe_ep *ep) +{ + struct qe_udc *udc; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + u16 swoffs, ucoffs, emptybds; + + udc = ep->udc; + pframe = ep->rxframe; + + if (ep->dir == USB_DIR_IN) { + dev_err(udc->dev, "transmit ep in rx function\n"); + return -EINVAL; + } + + bd = ep->n_rxbd; + + swoffs = (u16)(bd - ep->rxbase); + ucoffs = (u16)((in_be16(&udc->ep_param[ep->epnum]->rbptr) - + in_be16(&udc->ep_param[ep->epnum]->rbase)) >> 3); + if (swoffs < ucoffs) + emptybds = USB_BDRING_LEN_RX - ucoffs + swoffs; + else + emptybds = swoffs - ucoffs; + + if (emptybds < MIN_EMPTY_BDS) { + qe_eprx_nack(ep); + ep->localnack = 1; + dev_vdbg(udc->dev, "%d empty bds, send NACK\n", emptybds); + } + ep->has_data = USB_BDRING_LEN_RX - emptybds; + + if (list_empty(&ep->queue)) { + qe_eprx_nack(ep); + dev_vdbg(udc->dev, "The rxep have no req queued with %d BDs\n", + ep->has_data); + return 0; + } + + tasklet_schedule(&udc->rx_tasklet); + ep->enable_tasklet = 1; + + return 0; +} + +/* send data from a frame, no matter what tx_req */ +static int qe_ep_tx(struct qe_ep *ep, struct qe_frame *frame) +{ + struct qe_udc *udc = ep->udc; + struct qe_bd __iomem *bd; + u16 saveusbmr; + u32 bdstatus, pidmask; + u32 paddr; + + if (ep->dir == USB_DIR_OUT) { + dev_err(udc->dev, "receive ep passed to tx function\n"); + return -EINVAL; + } + + /* Disable the Tx interrupt */ + saveusbmr = in_be16(&udc->usb_regs->usb_usbmr); + out_be16(&udc->usb_regs->usb_usbmr, + saveusbmr & ~(USB_E_TXB_MASK | USB_E_TXE_MASK)); + + bd = ep->n_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + + if (!(bdstatus & (T_R | BD_LENGTH_MASK))) { + if (frame_get_length(frame) == 0) { + frame_set_data(frame, udc->nullbuf); + frame_set_length(frame, 2); + frame->info |= (ZLP | NO_CRC); + dev_vdbg(udc->dev, "the frame size = 0\n"); + } + paddr = virt_to_phys((void *)frame->data); + out_be32(&bd->buf, paddr); + bdstatus = (bdstatus&T_W); + if (!(frame_get_info(frame) & NO_CRC)) + bdstatus |= T_R | T_I | T_L | T_TC + | frame_get_length(frame); + else + bdstatus |= T_R | T_I | T_L | frame_get_length(frame); + + /* if the packet is a ZLP in status phase */ + if ((ep->epnum == 0) && (udc->ep0_state == DATA_STATE_NEED_ZLP)) + ep->data01 = 0x1; + + if (ep->data01) { + pidmask = T_PID_DATA1; + frame->info |= PID_DATA1; + } else { + pidmask = T_PID_DATA0; + frame->info |= PID_DATA0; + } + bdstatus |= T_CNF; + bdstatus |= pidmask; + out_be32((u32 __iomem *)bd, bdstatus); + qe_ep_filltxfifo(ep); + + /* enable the TX interrupt */ + out_be16(&udc->usb_regs->usb_usbmr, saveusbmr); + + qe_ep_toggledata01(ep); + if (bdstatus & T_W) + ep->n_txbd = ep->txbase; + else + ep->n_txbd++; + + return 0; + } else { + out_be16(&udc->usb_regs->usb_usbmr, saveusbmr); + dev_vdbg(udc->dev, "The tx bd is not ready!\n"); + return -EBUSY; + } +} + +/* when a bd was transmitted, the function can + * handle the tx_req, not include ep0 */ +static int txcomplete(struct qe_ep *ep, unsigned char restart) +{ + if (ep->tx_req != NULL) { + if (!restart) { + int asent = ep->last; + ep->sent += asent; + ep->last -= asent; + } else { + ep->last = 0; + } + + /* a request already were transmitted completely */ + if ((ep->tx_req->req.length - ep->sent) <= 0) { + ep->tx_req->req.actual = (unsigned int)ep->sent; + done(ep, ep->tx_req, 0); + ep->tx_req = NULL; + ep->last = 0; + ep->sent = 0; + } + } + + /* we should gain a new tx_req fot this endpoint */ + if (ep->tx_req == NULL) { + if (!list_empty(&ep->queue)) { + ep->tx_req = list_entry(ep->queue.next, struct qe_req, + queue); + ep->last = 0; + ep->sent = 0; + } + } + + return 0; +} + +/* give a frame and a tx_req, send some data */ +static int qe_usb_senddata(struct qe_ep *ep, struct qe_frame *frame) +{ + unsigned int size; + u8 *buf; + + qe_frame_clean(frame); + size = min_t(u32, (ep->tx_req->req.length - ep->sent), + ep->ep.maxpacket); + buf = (u8 *)ep->tx_req->req.buf + ep->sent; + if (buf && size) { + ep->last = size; + frame_set_data(frame, buf); + frame_set_length(frame, size); + frame_set_status(frame, FRAME_OK); + frame_set_info(frame, 0); + return qe_ep_tx(ep, frame); + } + return -EIO; +} + +/* give a frame struct,send a ZLP */ +static int sendnulldata(struct qe_ep *ep, struct qe_frame *frame, uint infor) +{ + struct qe_udc *udc = ep->udc; + + if (frame == NULL) + return -ENODEV; + + qe_frame_clean(frame); + frame_set_data(frame, (u8 *)udc->nullbuf); + frame_set_length(frame, 2); + frame_set_status(frame, FRAME_OK); + frame_set_info(frame, (ZLP | NO_CRC | infor)); + + return qe_ep_tx(ep, frame); +} + +static int frame_create_tx(struct qe_ep *ep, struct qe_frame *frame) +{ + struct qe_req *req = ep->tx_req; + int reval; + + if (req == NULL) + return -ENODEV; + + if ((req->req.length - ep->sent) > 0) + reval = qe_usb_senddata(ep, frame); + else + reval = sendnulldata(ep, frame, 0); + + return reval; +} + +/* if direction is DIR_IN, the status is Device->Host + * if direction is DIR_OUT, the status transaction is Device<-Host + * in status phase, udc create a request and gain status */ +static int ep0_prime_status(struct qe_udc *udc, int direction) +{ + + struct qe_ep *ep = &udc->eps[0]; + + if (direction == USB_DIR_IN) { + udc->ep0_state = DATA_STATE_NEED_ZLP; + udc->ep0_dir = USB_DIR_IN; + sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ); + } else { + udc->ep0_dir = USB_DIR_OUT; + udc->ep0_state = WAIT_FOR_OUT_STATUS; + } + + return 0; +} + +/* a request complete in ep0, whether gadget request or udc request */ +static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req) +{ + struct qe_ep *ep = &udc->eps[0]; + /* because usb and ep's status already been set in ch9setaddress() */ + + switch (udc->ep0_state) { + case DATA_STATE_XMIT: + done(ep, req, 0); + /* receive status phase */ + if (ep0_prime_status(udc, USB_DIR_OUT)) + qe_ep0_stall(udc); + break; + + case DATA_STATE_NEED_ZLP: + done(ep, req, 0); + udc->ep0_state = WAIT_FOR_SETUP; + break; + + case DATA_STATE_RECV: + done(ep, req, 0); + /* send status phase */ + if (ep0_prime_status(udc, USB_DIR_IN)) + qe_ep0_stall(udc); + break; + + case WAIT_FOR_OUT_STATUS: + done(ep, req, 0); + udc->ep0_state = WAIT_FOR_SETUP; + break; + + case WAIT_FOR_SETUP: + dev_vdbg(udc->dev, "Unexpected interrupt\n"); + break; + + default: + qe_ep0_stall(udc); + break; + } +} + +static int ep0_txcomplete(struct qe_ep *ep, unsigned char restart) +{ + struct qe_req *tx_req = NULL; + struct qe_frame *frame = ep->txframe; + + if ((frame_get_info(frame) & (ZLP | NO_REQ)) == (ZLP | NO_REQ)) { + if (!restart) + ep->udc->ep0_state = WAIT_FOR_SETUP; + else + sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ); + return 0; + } + + tx_req = ep->tx_req; + if (tx_req != NULL) { + if (!restart) { + int asent = ep->last; + ep->sent += asent; + ep->last -= asent; + } else { + ep->last = 0; + } + + /* a request already were transmitted completely */ + if ((ep->tx_req->req.length - ep->sent) <= 0) { + ep->tx_req->req.actual = (unsigned int)ep->sent; + ep0_req_complete(ep->udc, ep->tx_req); + ep->tx_req = NULL; + ep->last = 0; + ep->sent = 0; + } + } else { + dev_vdbg(ep->udc->dev, "the ep0_controller have no req\n"); + } + + return 0; +} + +static int ep0_txframe_handle(struct qe_ep *ep) +{ + /* if have error, transmit again */ + if (frame_get_status(ep->txframe) & FRAME_ERROR) { + qe_ep_flushtxfifo(ep); + dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n"); + if (frame_get_info(ep->txframe) & PID_DATA0) + ep->data01 = 0; + else + ep->data01 = 1; + + ep0_txcomplete(ep, 1); + } else + ep0_txcomplete(ep, 0); + + frame_create_tx(ep, ep->txframe); + return 0; +} + +static int qe_ep0_txconf(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd; + struct qe_frame *pframe; + u32 bdstatus; + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + while (!(bdstatus & T_R) && (bdstatus & ~T_W)) { + pframe = ep->txframe; + + /* clear and recycle the BD */ + out_be32((u32 __iomem *)bd, bdstatus & T_W); + out_be32(&bd->buf, 0); + if (bdstatus & T_W) + ep->c_txbd = ep->txbase; + else + ep->c_txbd++; + + if (ep->c_txbd == ep->n_txbd) { + if (bdstatus & DEVICE_T_ERROR) { + frame_set_status(pframe, FRAME_ERROR); + if (bdstatus & T_TO) + pframe->status |= TX_ER_TIMEOUT; + if (bdstatus & T_UN) + pframe->status |= TX_ER_UNDERUN; + } + ep0_txframe_handle(ep); + } + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + } + + return 0; +} + +static int ep_txframe_handle(struct qe_ep *ep) +{ + if (frame_get_status(ep->txframe) & FRAME_ERROR) { + qe_ep_flushtxfifo(ep); + dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n"); + if (frame_get_info(ep->txframe) & PID_DATA0) + ep->data01 = 0; + else + ep->data01 = 1; + + txcomplete(ep, 1); + } else + txcomplete(ep, 0); + + frame_create_tx(ep, ep->txframe); /* send the data */ + return 0; +} + +/* confirm the already trainsmited bd */ +static int qe_ep_txconf(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd; + struct qe_frame *pframe = NULL; + u32 bdstatus; + unsigned char breakonrxinterrupt = 0; + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + while (!(bdstatus & T_R) && (bdstatus & ~T_W)) { + pframe = ep->txframe; + if (bdstatus & DEVICE_T_ERROR) { + frame_set_status(pframe, FRAME_ERROR); + if (bdstatus & T_TO) + pframe->status |= TX_ER_TIMEOUT; + if (bdstatus & T_UN) + pframe->status |= TX_ER_UNDERUN; + } + + /* clear and recycle the BD */ + out_be32((u32 __iomem *)bd, bdstatus & T_W); + out_be32(&bd->buf, 0); + if (bdstatus & T_W) + ep->c_txbd = ep->txbase; + else + ep->c_txbd++; + + /* handle the tx frame */ + ep_txframe_handle(ep); + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + } + if (breakonrxinterrupt) + return -EIO; + else + return 0; +} + +/* Add a request in queue, and try to transmit a packet */ +static int ep_req_send(struct qe_ep *ep, struct qe_req *req) +{ + int reval = 0; + + if (ep->tx_req == NULL) { + ep->sent = 0; + ep->last = 0; + txcomplete(ep, 0); /* can gain a new tx_req */ + reval = frame_create_tx(ep, ep->txframe); + } + return reval; +} + +/* Maybe this is a good ideal */ +static int ep_req_rx(struct qe_ep *ep, struct qe_req *req) +{ + struct qe_udc *udc = ep->udc; + struct qe_frame *pframe = NULL; + struct qe_bd __iomem *bd; + u32 bdstatus, length; + u32 vaddr, fsize; + u8 *cp; + u8 finish_req = 0; + u8 framepid; + + if (list_empty(&ep->queue)) { + dev_vdbg(udc->dev, "the req already finish!\n"); + return 0; + } + pframe = ep->rxframe; + + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if (finish_req) + break; + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); break; + default: + frame_set_info(pframe, PID_DATA0); break; + } + /* handle the rx frame */ + + if (frame_get_info(pframe) & PID_DATA1) + framepid = 0x1; + else + framepid = 0; + + if (framepid != ep->data01) { + dev_vdbg(udc->dev, "the data01 error!\n"); + } else { + fsize = frame_get_length(pframe); + + cp = (u8 *)(req->req.buf) + req->req.actual; + if (cp) { + memcpy(cp, pframe->data, fsize); + req->req.actual += fsize; + if ((fsize < ep->ep.maxpacket) + || (req->req.actual >= + req->req.length)) { + finish_req = 1; + done(ep, req, 0); + if (list_empty(&ep->queue)) + qe_eprx_nack(ep); + } + } + qe_ep_toggledata01(ep); + } + } else { + dev_err(udc->dev, "The receive frame with error!\n"); + } + + /* note: don't clear the rxbd's buffer address * + * only Clear the length */ + out_be32((u32 __iomem *)bd, (bdstatus & BD_STATUS_MASK)); + ep->has_data--; + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + } + + ep->n_rxbd = bd; + ep_recycle_rxbds(ep); + + return 0; +} + +/* only add the request in queue */ +static int ep_req_receive(struct qe_ep *ep, struct qe_req *req) +{ + if (ep->state == EP_STATE_NACK) { + if (ep->has_data <= 0) { + /* Enable rx and unmask rx interrupt */ + qe_eprx_normal(ep); + } else { + /* Copy the exist BD data */ + ep_req_rx(ep, req); + } + } + + return 0; +} + +/******************************************************************** + Internal Used Function End +********************************************************************/ + +/*----------------------------------------------------------------------- + Endpoint Management Functions For Gadget + -----------------------------------------------------------------------*/ +static int qe_ep_enable(struct usb_ep *_ep, + const struct usb_endpoint_descriptor *desc) +{ + struct qe_udc *udc; + struct qe_ep *ep; + int retval = 0; + unsigned char epnum; + + ep = container_of(_ep, struct qe_ep, ep); + + /* catch various bogus parameters */ + if (!_ep || !desc || ep->desc || _ep->name == ep_name[0] || + (desc->bDescriptorType != USB_DT_ENDPOINT)) + return -EINVAL; + + udc = ep->udc; + if (!udc->driver || (udc->gadget.speed == USB_SPEED_UNKNOWN)) + return -ESHUTDOWN; + + epnum = (u8)desc->bEndpointAddress & 0xF; + + retval = qe_ep_init(udc, epnum, desc); + if (retval != 0) { + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + dev_dbg(udc->dev, "enable ep%d failed\n", ep->epnum); + return -EINVAL; + } + dev_dbg(udc->dev, "enable ep%d successful\n", ep->epnum); + return 0; +} + +static int qe_ep_disable(struct usb_ep *_ep) +{ + struct qe_udc *udc; + struct qe_ep *ep; + unsigned long flags; + unsigned int size; + + ep = container_of(_ep, struct qe_ep, ep); + udc = ep->udc; + + if (!_ep || !ep->desc) { + dev_dbg(udc->dev, "%s not enabled\n", _ep ? ep->ep.name : NULL); + return -EINVAL; + } + + spin_lock_irqsave(&udc->lock, flags); + /* Nuke all pending requests (does flush) */ + nuke(ep, -ESHUTDOWN); + ep->desc = NULL; + ep->stopped = 1; + spin_unlock_irqrestore(&udc->lock, flags); + + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + + if (ep->dir == USB_DIR_OUT) + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * + (USB_BDRING_LEN_RX + 1); + else + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * + (USB_BDRING_LEN + 1); + + if (ep->dir != USB_DIR_IN) { + kfree(ep->rxframe); + if (ep->rxbufmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbuf_d = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu( + udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + } + kfree(ep->rxbuffer); + } + + if (ep->dir != USB_DIR_OUT) + kfree(ep->txframe); + + dev_dbg(udc->dev, "disabled %s OK\n", _ep->name); + return 0; +} + +static struct usb_request *qe_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) +{ + struct qe_req *req; + + req = kzalloc(sizeof(*req), gfp_flags); + if (!req) + return NULL; + + req->req.dma = DMA_ADDR_INVALID; + + INIT_LIST_HEAD(&req->queue); + + return &req->req; +} + +static void qe_free_request(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_req *req; + + req = container_of(_req, struct qe_req, req); + + if (_req) + kfree(req); +} + +/* queues (submits) an I/O request to an endpoint */ +static int qe_ep_queue(struct usb_ep *_ep, struct usb_request *_req, + gfp_t gfp_flags) +{ + struct qe_ep *ep = container_of(_ep, struct qe_ep, ep); + struct qe_req *req = container_of(_req, struct qe_req, req); + struct qe_udc *udc; + unsigned long flags; + int reval; + + udc = ep->udc; + /* catch various bogus parameters */ + if (!_req || !req->req.complete || !req->req.buf + || !list_empty(&req->queue)) { + dev_dbg(udc->dev, "bad params\n"); + return -EINVAL; + } + if (!_ep || (!ep->desc && ep_index(ep))) { + dev_dbg(udc->dev, "bad ep\n"); + return -EINVAL; + } + + if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + req->ep = ep; + + /* map virtual address to hardware */ + if (req->req.dma == DMA_ADDR_INVALID) { + req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, + req->req.buf, + req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE : + DMA_FROM_DEVICE); + req->mapped = 1; + } else { + dma_sync_single_for_device(ep->udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE : + DMA_FROM_DEVICE); + req->mapped = 0; + } + + req->req.status = -EINPROGRESS; + req->req.actual = 0; + + list_add_tail(&req->queue, &ep->queue); + dev_vdbg(udc->dev, "gadget have request in %s! %d\n", + ep->name, req->req.length); + spin_lock_irqsave(&udc->lock, flags); + /* push the request to device */ + if (ep_is_in(ep)) + reval = ep_req_send(ep, req); + + /* EP0 */ + if (ep_index(ep) == 0 && req->req.length > 0) { + if (ep_is_in(ep)) + udc->ep0_state = DATA_STATE_XMIT; + else + udc->ep0_state = DATA_STATE_RECV; + } + + if (ep->dir == USB_DIR_OUT) + reval = ep_req_receive(ep, req); + + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +/* dequeues (cancels, unlinks) an I/O request from an endpoint */ +static int qe_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_ep *ep = container_of(_ep, struct qe_ep, ep); + struct qe_req *req; + unsigned long flags; + + if (!_ep || !_req) + return -EINVAL; + + spin_lock_irqsave(&ep->udc->lock, flags); + + /* make sure it's actually queued on this endpoint */ + list_for_each_entry(req, &ep->queue, queue) { + if (&req->req == _req) + break; + } + + if (&req->req != _req) { + spin_unlock_irqrestore(&ep->udc->lock, flags); + return -EINVAL; + } + + done(ep, req, -ECONNRESET); + + spin_unlock_irqrestore(&ep->udc->lock, flags); + return 0; +} + +/*----------------------------------------------------------------- + * modify the endpoint halt feature + * @ep: the non-isochronous endpoint being stalled + * @value: 1--set halt 0--clear halt + * Returns zero, or a negative error code. +*----------------------------------------------------------------*/ +static int qe_ep_set_halt(struct usb_ep *_ep, int value) +{ + struct qe_ep *ep; + unsigned long flags; + int status = -EOPNOTSUPP; + struct qe_udc *udc; + + ep = container_of(_ep, struct qe_ep, ep); + if (!_ep || !ep->desc) { + status = -EINVAL; + goto out; + } + + udc = ep->udc; + /* Attempt to halt IN ep will fail if any transfer requests + * are still queue */ + if (value && ep_is_in(ep) && !list_empty(&ep->queue)) { + status = -EAGAIN; + goto out; + } + + status = 0; + spin_lock_irqsave(&ep->udc->lock, flags); + qe_eptx_stall_change(ep, value); + qe_eprx_stall_change(ep, value); + spin_unlock_irqrestore(&ep->udc->lock, flags); + + if (ep->epnum == 0) { + udc->ep0_state = WAIT_FOR_SETUP; + udc->ep0_dir = 0; + } + + /* set data toggle to DATA0 on clear halt */ + if (value == 0) + ep->data01 = 0; +out: + dev_vdbg(udc->dev, "%s %s halt stat %d\n", ep->ep.name, + value ? "set" : "clear", status); + + return status; +} + +static struct usb_ep_ops qe_ep_ops = { + .enable = qe_ep_enable, + .disable = qe_ep_disable, + + .alloc_request = qe_alloc_request, + .free_request = qe_free_request, + + .queue = qe_ep_queue, + .dequeue = qe_ep_dequeue, + + .set_halt = qe_ep_set_halt, +}; + +/*------------------------------------------------------------------------ + Gadget Driver Layer Operations + ------------------------------------------------------------------------*/ + +/* Get the current frame number */ +static int qe_get_frame(struct usb_gadget *gadget) +{ + u16 tmp; + + tmp = in_be16(&udc_controller->usb_param->frame_n); + if (tmp & 0x8000) + tmp = tmp & 0x07ff; + else + tmp = -EINVAL; + + return (int)tmp; +} + +/* Tries to wake up the host connected to this gadget + * + * Return : 0-success + * Negative-this feature not enabled by host or not supported by device hw + */ +static int qe_wakeup(struct usb_gadget *gadget) +{ + return -ENOTSUPP; +} + +/* Notify controller that VBUS is powered, Called by whatever + detects VBUS sessions */ +static int qe_vbus_session(struct usb_gadget *gadget, int is_active) +{ + return -ENOTSUPP; +} + +/* constrain controller's VBUS power usage + * This call is used by gadget drivers during SET_CONFIGURATION calls, + * reporting how much power the device may consume. For example, this + * could affect how quickly batteries are recharged. + * + * Returns zero on success, else negative errno. + */ +static int qe_vbus_draw(struct usb_gadget *gadget, unsigned mA) +{ + return -ENOTSUPP; +} + +/* Change Data+ pullup status + * this func is used by usb_gadget_connect/disconnect + */ +static int qe_pullup(struct usb_gadget *gadget, int is_on) +{ + return -ENOTSUPP; +} + +/* defined in usb_gadget.h */ +static struct usb_gadget_ops qe_gadget_ops = { + .get_frame = qe_get_frame, + .wakeup = qe_wakeup, +/* .set_selfpowered = qe_set_selfpowered,*/ /* always selfpowered */ + .vbus_session = qe_vbus_session, + .vbus_draw = qe_vbus_draw, + .pullup = qe_pullup, +}; + +/*------------------------------------------------------------------------- + USB ep0 Setup process in BUS Enumeration + -------------------------------------------------------------------------*/ +static int udc_reset_ep_queue(struct qe_udc *udc, u8 pipe) +{ + struct qe_ep *ep = &udc->eps[pipe]; + + nuke(ep, -ECONNRESET); + ep->tx_req = NULL; + return 0; +} + +static int reset_queues(struct qe_udc *udc) +{ + u8 pipe; + + for (pipe = 0; pipe < USB_MAX_ENDPOINTS; pipe++) + udc_reset_ep_queue(udc, pipe); + + /* report disconnect; the driver is already quiesced */ + spin_unlock(&udc->lock); + udc->driver->disconnect(&udc->gadget); + spin_lock(&udc->lock); + + return 0; +} + +static void ch9setaddress(struct qe_udc *udc, u16 value, u16 index, + u16 length) +{ + /* Save the new address to device struct */ + udc->device_address = (u8) value; + /* Update usb state */ + udc->usb_state = USB_STATE_ADDRESS; + + /* Status phase , send a ZLP */ + if (ep0_prime_status(udc, USB_DIR_IN)) + qe_ep0_stall(udc); +} + +static void ownercomplete(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_req *req = container_of(_req, struct qe_req, req); + + req->req.buf = NULL; + kfree(req); +} + +static void ch9getstatus(struct qe_udc *udc, u8 request_type, u16 value, + u16 index, u16 length) +{ + u16 usb_status = 0; + struct qe_req *req; + struct qe_ep *ep; + int status = 0; + + ep = &udc->eps[0]; + if ((request_type & USB_RECIP_MASK) == USB_RECIP_DEVICE) { + /* Get device status */ + usb_status = 1 << USB_DEVICE_SELF_POWERED; + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_INTERFACE) { + /* Get interface status */ + /* We don't have interface information in udc driver */ + usb_status = 0; + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) { + /* Get endpoint status */ + int pipe = index & USB_ENDPOINT_NUMBER_MASK; + struct qe_ep *target_ep = &udc->eps[pipe]; + u16 usep; + + /* stall if endpoint doesn't exist */ + if (!target_ep->desc) + goto stall; + + usep = in_be16(&udc->usb_regs->usb_usep[pipe]); + if (index & USB_DIR_IN) { + if (target_ep->dir != USB_DIR_IN) + goto stall; + if ((usep & USB_THS_MASK) == USB_THS_STALL) + usb_status = 1 << USB_ENDPOINT_HALT; + } else { + if (target_ep->dir != USB_DIR_OUT) + goto stall; + if ((usep & USB_RHS_MASK) == USB_RHS_STALL) + usb_status = 1 << USB_ENDPOINT_HALT; + } + } + + req = container_of(qe_alloc_request(&ep->ep, GFP_KERNEL), + struct qe_req, req); + req->req.length = 2; + req->req.buf = udc->statusbuf; + *(u16 *)req->req.buf = cpu_to_le16(usb_status); + req->req.status = -EINPROGRESS; + req->req.actual = 0; + req->req.complete = ownercomplete; + + udc->ep0_dir = USB_DIR_IN; + + /* data phase */ + status = qe_ep_queue(&ep->ep, &req->req, GFP_ATOMIC); + + if (status == 0) + return; +stall: + dev_err(udc->dev, "Can't respond to getstatus request \n"); + qe_ep0_stall(udc); +} + +/* only handle the setup request, suppose the device in normal status */ +static void setup_received_handle(struct qe_udc *udc, + struct usb_ctrlrequest *setup) +{ + /* Fix Endian (udc->local_setup_buff is cpu Endian now)*/ + u16 wValue = le16_to_cpu(setup->wValue); + u16 wIndex = le16_to_cpu(setup->wIndex); + u16 wLength = le16_to_cpu(setup->wLength); + + /* clear the previous request in the ep0 */ + udc_reset_ep_queue(udc, 0); + + if (setup->bRequestType & USB_DIR_IN) + udc->ep0_dir = USB_DIR_IN; + else + udc->ep0_dir = USB_DIR_OUT; + + switch (setup->bRequest) { + case USB_REQ_GET_STATUS: + /* Data+Status phase form udc */ + if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK)) + != (USB_DIR_IN | USB_TYPE_STANDARD)) + break; + ch9getstatus(udc, setup->bRequestType, wValue, wIndex, + wLength); + return; + + case USB_REQ_SET_ADDRESS: + /* Status phase from udc */ + if (setup->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_DEVICE)) + break; + ch9setaddress(udc, wValue, wIndex, wLength); + return; + + case USB_REQ_CLEAR_FEATURE: + case USB_REQ_SET_FEATURE: + /* Requests with no data phase, status phase from udc */ + if ((setup->bRequestType & USB_TYPE_MASK) + != USB_TYPE_STANDARD) + break; + + if ((setup->bRequestType & USB_RECIP_MASK) + == USB_RECIP_ENDPOINT) { + int pipe = wIndex & USB_ENDPOINT_NUMBER_MASK; + struct qe_ep *ep; + + if (wValue != 0 || wLength != 0 + || pipe > USB_MAX_ENDPOINTS) + break; + ep = &udc->eps[pipe]; + + spin_unlock(&udc->lock); + qe_ep_set_halt(&ep->ep, + (setup->bRequest == USB_REQ_SET_FEATURE) + ? 1 : 0); + spin_lock(&udc->lock); + } + + ep0_prime_status(udc, USB_DIR_IN); + + return; + + default: + break; + } + + if (wLength) { + /* Data phase from gadget, status phase from udc */ + if (setup->bRequestType & USB_DIR_IN) { + udc->ep0_state = DATA_STATE_XMIT; + udc->ep0_dir = USB_DIR_IN; + } else { + udc->ep0_state = DATA_STATE_RECV; + udc->ep0_dir = USB_DIR_OUT; + } + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + qe_ep0_stall(udc); + spin_lock(&udc->lock); + } else { + /* No data phase, IN status from gadget */ + udc->ep0_dir = USB_DIR_IN; + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + qe_ep0_stall(udc); + spin_lock(&udc->lock); + udc->ep0_state = DATA_STATE_NEED_ZLP; + } +} + +/*------------------------------------------------------------------------- + USB Interrupt handlers + -------------------------------------------------------------------------*/ +static void suspend_irq(struct qe_udc *udc) +{ + udc->resume_state = udc->usb_state; + udc->usb_state = USB_STATE_SUSPENDED; + + /* report suspend to the driver ,serial.c not support this*/ + if (udc->driver->suspend) + udc->driver->suspend(&udc->gadget); +} + +static void resume_irq(struct qe_udc *udc) +{ + udc->usb_state = udc->resume_state; + udc->resume_state = 0; + + /* report resume to the driver , serial.c not support this*/ + if (udc->driver->resume) + udc->driver->resume(&udc->gadget); +} + +static void idle_irq(struct qe_udc *udc) +{ + u8 usbs; + + usbs = in_8(&udc->usb_regs->usb_usbs); + if (usbs & USB_IDLE_STATUS_MASK) { + if ((udc->usb_state) != USB_STATE_SUSPENDED) + suspend_irq(udc); + } else { + if (udc->usb_state == USB_STATE_SUSPENDED) + resume_irq(udc); + } +} + +static int reset_irq(struct qe_udc *udc) +{ + unsigned char i; + + qe_usb_disable(); + out_8(&udc->usb_regs->usb_usadr, 0); + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + if (udc->eps[i].init) + qe_ep_reset(udc, i); + } + + reset_queues(udc); + udc->usb_state = USB_STATE_DEFAULT; + udc->ep0_state = WAIT_FOR_SETUP; + udc->ep0_dir = USB_DIR_OUT; + qe_usb_enable(); + return 0; +} + +static int bsy_irq(struct qe_udc *udc) +{ + return 0; +} + +static int txe_irq(struct qe_udc *udc) +{ + return 0; +} + +/* ep0 tx interrupt also in here */ +static int tx_irq(struct qe_udc *udc) +{ + struct qe_ep *ep; + struct qe_bd __iomem *bd; + int i, res = 0; + + if ((udc->usb_state == USB_STATE_ADDRESS) + && (in_8(&udc->usb_regs->usb_usadr) == 0)) + out_8(&udc->usb_regs->usb_usadr, udc->device_address); + + for (i = (USB_MAX_ENDPOINTS-1); ((i >= 0) && (res == 0)); i--) { + ep = &udc->eps[i]; + if (ep && ep->init && (ep->dir != USB_DIR_OUT)) { + bd = ep->c_txbd; + if (!(in_be32((u32 __iomem *)bd) & T_R) + && (in_be32(&bd->buf))) { + /* confirm the transmitted bd */ + if (ep->epnum == 0) + res = qe_ep0_txconf(ep); + else + res = qe_ep_txconf(ep); + } + } + } + return res; +} + + +/* setup packect's rx is handle in the function too */ +static void rx_irq(struct qe_udc *udc) +{ + struct qe_ep *ep; + struct qe_bd __iomem *bd; + int i; + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + ep = &udc->eps[i]; + if (ep && ep->init && (ep->dir != USB_DIR_IN)) { + bd = ep->n_rxbd; + if (!(in_be32((u32 __iomem *)bd) & R_E) + && (in_be32(&bd->buf))) { + if (ep->epnum == 0) { + qe_ep0_rx(udc); + } else { + /*non-setup package receive*/ + qe_ep_rx(ep); + } + } + } + } +} + +static irqreturn_t qe_udc_irq(int irq, void *_udc) +{ + struct qe_udc *udc = (struct qe_udc *)_udc; + u16 irq_src; + irqreturn_t status = IRQ_NONE; + unsigned long flags; + + spin_lock_irqsave(&udc->lock, flags); + + irq_src = in_be16(&udc->usb_regs->usb_usber) & + in_be16(&udc->usb_regs->usb_usbmr); + /* Clear notification bits */ + out_be16(&udc->usb_regs->usb_usber, irq_src); + /* USB Interrupt */ + if (irq_src & USB_E_IDLE_MASK) { + idle_irq(udc); + irq_src &= ~USB_E_IDLE_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_TXB_MASK) { + tx_irq(udc); + irq_src &= ~USB_E_TXB_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_RXB_MASK) { + rx_irq(udc); + irq_src &= ~USB_E_RXB_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_RESET_MASK) { + reset_irq(udc); + irq_src &= ~USB_E_RESET_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_BSY_MASK) { + bsy_irq(udc); + irq_src &= ~USB_E_BSY_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_TXE_MASK) { + txe_irq(udc); + irq_src &= ~USB_E_TXE_MASK; + status = IRQ_HANDLED; + } + + spin_unlock_irqrestore(&udc->lock, flags); + + return status; +} + +/*------------------------------------------------------------------------- + Gadget driver register and unregister. + --------------------------------------------------------------------------*/ +int usb_gadget_register_driver(struct usb_gadget_driver *driver) +{ + int retval; + unsigned long flags = 0; + + /* standard operations */ + if (!udc_controller) + return -ENODEV; + + if (!driver || (driver->speed != USB_SPEED_FULL + && driver->speed != USB_SPEED_HIGH) + || !driver->bind || !driver->disconnect + || !driver->setup) + return -EINVAL; + + if (udc_controller->driver) + return -EBUSY; + + /* lock is needed but whether should use this lock or another */ + spin_lock_irqsave(&udc_controller->lock, flags); + + driver->driver.bus = NULL; + /* hook up the driver */ + udc_controller->driver = driver; + udc_controller->gadget.dev.driver = &driver->driver; + udc_controller->gadget.speed = (enum usb_device_speed)(driver->speed); + spin_unlock_irqrestore(&udc_controller->lock, flags); + + retval = driver->bind(&udc_controller->gadget); + if (retval) { + dev_err(udc_controller->dev, "bind to %s --> %d", + driver->driver.name, retval); + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; + return retval; + } + + /* Enable IRQ reg and Set usbcmd reg EN bit */ + qe_usb_enable(); + + out_be16(&udc_controller->usb_regs->usb_usber, 0xffff); + out_be16(&udc_controller->usb_regs->usb_usbmr, USB_E_DEFAULT_DEVICE); + udc_controller->usb_state = USB_STATE_ATTACHED; + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = USB_DIR_OUT; + dev_info(udc_controller->dev, "%s bind to driver %s \n", + udc_controller->gadget.name, driver->driver.name); + return 0; +} +EXPORT_SYMBOL(usb_gadget_register_driver); + +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +{ + struct qe_ep *loop_ep; + unsigned long flags; + + if (!udc_controller) + return -ENODEV; + + if (!driver || driver != udc_controller->driver) + return -EINVAL; + + /* stop usb controller, disable intr */ + qe_usb_disable(); + + /* in fact, no needed */ + udc_controller->usb_state = USB_STATE_ATTACHED; + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = 0; + + /* stand operation */ + spin_lock_irqsave(&udc_controller->lock, flags); + udc_controller->gadget.speed = USB_SPEED_UNKNOWN; + nuke(&udc_controller->eps[0], -ESHUTDOWN); + list_for_each_entry(loop_ep, &udc_controller->gadget.ep_list, + ep.ep_list) + nuke(loop_ep, -ESHUTDOWN); + spin_unlock_irqrestore(&udc_controller->lock, flags); + + /* unbind gadget and unhook driver. */ + driver->unbind(&udc_controller->gadget); + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; + + dev_info(udc_controller->dev, "unregistered gadget driver '%s'\r\n", + driver->driver.name); + return 0; +} +EXPORT_SYMBOL(usb_gadget_unregister_driver); + +/* udc structure's alloc and setup, include ep-param alloc */ +static struct qe_udc __devinit *qe_udc_config(struct of_device *ofdev) +{ + struct qe_udc *udc; + struct device_node *np = ofdev->node; + unsigned int tmp_addr = 0; + struct usb_device_para __iomem *usbpram; + unsigned int i; + u64 size; + u32 offset; + + udc = kzalloc(sizeof(*udc), GFP_KERNEL); + if (udc == NULL) { + dev_err(&ofdev->dev, "malloc udc failed\n"); + goto cleanup; + } + + udc->dev = &ofdev->dev; + + /* get default address of usb parameter in MURAM from device tree */ + offset = *of_get_address(np, 1, &size, NULL); + udc->usb_param = cpm_muram_addr(offset); + memset_io(udc->usb_param, 0, size); + + usbpram = udc->usb_param; + out_be16(&usbpram->frame_n, 0); + out_be32(&usbpram->rstate, 0); + + tmp_addr = cpm_muram_alloc((USB_MAX_ENDPOINTS * + sizeof(struct usb_ep_para)), + USB_EP_PARA_ALIGNMENT); + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + out_be16(&usbpram->epptr[i], (u16)tmp_addr); + udc->ep_param[i] = cpm_muram_addr(tmp_addr); + tmp_addr += 32; + } + + memset_io(udc->ep_param[0], 0, + USB_MAX_ENDPOINTS * sizeof(struct usb_ep_para)); + + udc->resume_state = USB_STATE_NOTATTACHED; + udc->usb_state = USB_STATE_POWERED; + udc->ep0_dir = 0; + + spin_lock_init(&udc->lock); + return udc; + +cleanup: + kfree(udc); + return NULL; +} + +/* USB Controller register init */ +static int __devinit qe_udc_reg_init(struct qe_udc *udc) +{ + struct usb_ctlr __iomem *qe_usbregs; + qe_usbregs = udc->usb_regs; + + /* Init the usb register */ + out_8(&qe_usbregs->usb_usmod, 0x01); + out_be16(&qe_usbregs->usb_usbmr, 0); + out_8(&qe_usbregs->usb_uscom, 0); + out_be16(&qe_usbregs->usb_usber, USBER_ALL_CLEAR); + + return 0; +} + +static int __devinit qe_ep_config(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + + ep->udc = udc; + strcpy(ep->name, ep_name[pipe_num]); + ep->ep.name = ep_name[pipe_num]; + + ep->ep.ops = &qe_ep_ops; + ep->stopped = 1; + ep->ep.maxpacket = (unsigned short) ~0; + ep->desc = NULL; + ep->dir = 0xff; + ep->epnum = (u8)pipe_num; + ep->sent = 0; + ep->last = 0; + ep->init = 0; + ep->rxframe = NULL; + ep->txframe = NULL; + ep->tx_req = NULL; + ep->state = EP_STATE_IDLE; + ep->has_data = 0; + + /* the queue lists any req for this ep */ + INIT_LIST_HEAD(&ep->queue); + + /* gagdet.ep_list used for ep_autoconfig so no ep0*/ + if (pipe_num != 0) + list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); + + ep->gadget = &udc->gadget; + + return 0; +} + +/*----------------------------------------------------------------------- + * UDC device Driver operation functions * + *----------------------------------------------------------------------*/ +static void qe_udc_release(struct device *dev) +{ + int i = 0; + + complete(udc_controller->done); + cpm_muram_free(cpm_muram_offset(udc_controller->ep_param[0])); + for (i = 0; i < USB_MAX_ENDPOINTS; i++) + udc_controller->ep_param[i] = NULL; + + kfree(udc_controller); + udc_controller = NULL; +} + +/* Driver probe functions */ +static int __devinit qe_udc_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + struct device_node *np = ofdev->node; + struct qe_ep *ep; + unsigned int ret = 0; + unsigned int i; + const void *prop; + + prop = of_get_property(np, "mode", NULL); + if (!prop || strcmp(prop, "peripheral")) + return -ENODEV; + + /* Initialize the udc structure including QH member and other member */ + udc_controller = qe_udc_config(ofdev); + if (!udc_controller) { + dev_dbg(&ofdev->dev, "udc_controll is NULL\n"); + return -ENOMEM; + } + + udc_controller->soc_type = (unsigned long)match->data; + udc_controller->usb_regs = of_iomap(np, 0); + if (!udc_controller->usb_regs) { + ret = -ENOMEM; + goto err1; + } + + /* initialize usb hw reg except for regs for EP, + * leave usbintr reg untouched*/ + qe_udc_reg_init(udc_controller); + + /* here comes the stand operations for probe + * set the qe_udc->gadget.xxx */ + udc_controller->gadget.ops = &qe_gadget_ops; + + /* gadget.ep0 is a pointer */ + udc_controller->gadget.ep0 = &udc_controller->eps[0].ep; + + INIT_LIST_HEAD(&udc_controller->gadget.ep_list); + + /* modify in register gadget process */ + udc_controller->gadget.speed = USB_SPEED_UNKNOWN; + + /* name: Identifies the controller hardware type. */ + udc_controller->gadget.name = driver_name; + + device_initialize(&udc_controller->gadget.dev); + + strcpy(udc_controller->gadget.dev.bus_id, "gadget"); + + udc_controller->gadget.dev.release = qe_udc_release; + udc_controller->gadget.dev.parent = &ofdev->dev; + + /* initialize qe_ep struct */ + for (i = 0; i < USB_MAX_ENDPOINTS ; i++) { + /* because the ep type isn't decide here so + * qe_ep_init() should be called in ep_enable() */ + + /* setup the qe_ep struct and link ep.ep.list + * into gadget.ep_list */ + qe_ep_config(udc_controller, (unsigned char)i); + } + + /* ep0 initialization in here */ + ret = qe_ep_init(udc_controller, 0, &qe_ep0_desc); + if (ret) + goto err2; + + /* create a buf for ZLP send, need to remain zeroed */ + udc_controller->nullbuf = kzalloc(256, GFP_KERNEL); + if (udc_controller->nullbuf == NULL) { + dev_dbg(udc_controller->dev, "cannot alloc nullbuf\n"); + ret = -ENOMEM; + goto err3; + } + + /* buffer for data of get_status request */ + udc_controller->statusbuf = kzalloc(2, GFP_KERNEL); + if (udc_controller->statusbuf == NULL) { + ret = -ENOMEM; + goto err4; + } + + udc_controller->nullp = virt_to_phys((void *)udc_controller->nullbuf); + if (udc_controller->nullp == DMA_ADDR_INVALID) { + udc_controller->nullp = dma_map_single( + udc_controller->gadget.dev.parent, + udc_controller->nullbuf, + 256, + DMA_TO_DEVICE); + udc_controller->nullmap = 1; + } else { + dma_sync_single_for_device(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + + tasklet_init(&udc_controller->rx_tasklet, ep_rx_tasklet, + (unsigned long)udc_controller); + /* request irq and disable DR */ + udc_controller->usb_irq = irq_of_parse_and_map(np, 0); + + ret = request_irq(udc_controller->usb_irq, qe_udc_irq, 0, + driver_name, udc_controller); + if (ret) { + dev_err(udc_controller->dev, "cannot request irq %d err %d \n", + udc_controller->usb_irq, ret); + goto err5; + } + + ret = device_add(&udc_controller->gadget.dev); + if (ret) + goto err6; + + dev_info(udc_controller->dev, + "%s USB controller initialized as device\n", + (udc_controller->soc_type == PORT_QE) ? "QE" : "CPM"); + return 0; + +err6: + free_irq(udc_controller->usb_irq, udc_controller); +err5: + if (udc_controller->nullmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + udc_controller->nullp = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + kfree(udc_controller->statusbuf); +err4: + kfree(udc_controller->nullbuf); +err3: + ep = &udc_controller->eps[0]; + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + kfree(ep->rxframe); + kfree(ep->rxbuffer); + kfree(ep->txframe); +err2: + iounmap(udc_controller->usb_regs); +err1: + kfree(udc_controller); + + return ret; +} + +#ifdef CONFIG_PM +static int qe_udc_suspend(struct of_device *dev, pm_message_t state) +{ + return -ENOTSUPP; +} + +static int qe_udc_resume(struct of_device *dev) +{ + return -ENOTSUPP; +} +#endif + +static int __devexit qe_udc_remove(struct of_device *ofdev) +{ + struct qe_ep *ep; + unsigned int size; + + DECLARE_COMPLETION(done); + + if (!udc_controller) + return -ENODEV; + + udc_controller->done = &done; + tasklet_disable(&udc_controller->rx_tasklet); + + if (udc_controller->nullmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + udc_controller->nullp = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + kfree(udc_controller->statusbuf); + kfree(udc_controller->nullbuf); + + ep = &udc_controller->eps[0]; + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (USB_BDRING_LEN + 1); + + kfree(ep->rxframe); + if (ep->rxbufmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbuf_d = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + } + + kfree(ep->rxbuffer); + kfree(ep->txframe); + + free_irq(udc_controller->usb_irq, udc_controller); + + tasklet_kill(&udc_controller->rx_tasklet); + + iounmap(udc_controller->usb_regs); + + device_unregister(&udc_controller->gadget.dev); + /* wait for release() of gadget.dev to free udc */ + wait_for_completion(&done); + + return 0; +} + +/*-------------------------------------------------------------------------*/ +static struct of_device_id __devinitdata qe_udc_match[] = { + { + .compatible = "fsl,mpc8360-qe-usb", + .data = (void *)PORT_QE, + }, + { + .compatible = "fsl,mpc8272-cpm-usb", + .data = (void *)PORT_CPM, + }, + {}, +}; + +MODULE_DEVICE_TABLE(of, qe_udc_match); + +static struct of_platform_driver udc_driver = { + .name = (char *)driver_name, + .match_table = qe_udc_match, + .probe = qe_udc_probe, + .remove = __devexit_p(qe_udc_remove), +#ifdef CONFIG_PM + .suspend = qe_udc_suspend, + .resume = qe_udc_resume, +#endif +}; + +static int __init qe_udc_init(void) +{ + printk(KERN_INFO "%s: %s, %s\n", driver_name, driver_desc, + DRIVER_VERSION); + return of_register_platform_driver(&udc_driver); +} + +static void __exit qe_udc_exit(void) +{ + of_unregister_platform_driver(&udc_driver); +} + +module_init(qe_udc_init); +module_exit(qe_udc_exit); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_LICENSE("GPL"); + diff --git a/drivers/usb/gadget/fsl_qe_udc.h b/drivers/usb/gadget/fsl_qe_udc.h new file mode 100644 index 000000000000..31b2710882e4 --- /dev/null +++ b/drivers/usb/gadget/fsl_qe_udc.h @@ -0,0 +1,437 @@ +/* + * drivers/usb/gadget/qe_udc.h + * + * Copyright (C) 2006-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Xiaobo Xie <X.Xie@freescale.com> + * Li Yang <leoli@freescale.com> + * + * Description: + * Freescale USB device/endpoint management registers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef __FSL_QE_UDC_H +#define __FSL_QE_UDC_H + +/* SoC type */ +#define PORT_CPM 0 +#define PORT_QE 1 + +#define USB_MAX_ENDPOINTS 4 +#define USB_MAX_PIPES USB_MAX_ENDPOINTS +#define USB_EP0_MAX_SIZE 64 +#define USB_MAX_CTRL_PAYLOAD 0x4000 +#define USB_BDRING_LEN 16 +#define USB_BDRING_LEN_RX 256 +#define USB_BDRING_LEN_TX 16 +#define MIN_EMPTY_BDS 128 +#define MAX_DATA_BDS 8 +#define USB_CRC_SIZE 2 +#define USB_DIR_BOTH 0x88 +#define R_BUF_MAXSIZE 0x800 +#define USB_EP_PARA_ALIGNMENT 32 + +/* USB Mode Register bit define */ +#define USB_MODE_EN 0x01 +#define USB_MODE_HOST 0x02 +#define USB_MODE_TEST 0x04 +#define USB_MODE_SFTE 0x08 +#define USB_MODE_RESUME 0x40 +#define USB_MODE_LSS 0x80 + +/* USB Slave Address Register Mask */ +#define USB_SLVADDR_MASK 0x7F + +/* USB Endpoint register define */ +#define USB_EPNUM_MASK 0xF000 +#define USB_EPNUM_SHIFT 12 + +#define USB_TRANS_MODE_SHIFT 8 +#define USB_TRANS_CTR 0x0000 +#define USB_TRANS_INT 0x0100 +#define USB_TRANS_BULK 0x0200 +#define USB_TRANS_ISO 0x0300 + +#define USB_EP_MF 0x0020 +#define USB_EP_RTE 0x0010 + +#define USB_THS_SHIFT 2 +#define USB_THS_MASK 0x000c +#define USB_THS_NORMAL 0x0 +#define USB_THS_IGNORE_IN 0x0004 +#define USB_THS_NACK 0x0008 +#define USB_THS_STALL 0x000c + +#define USB_RHS_SHIFT 0 +#define USB_RHS_MASK 0x0003 +#define USB_RHS_NORMAL 0x0 +#define USB_RHS_IGNORE_OUT 0x0001 +#define USB_RHS_NACK 0x0002 +#define USB_RHS_STALL 0x0003 + +#define USB_RTHS_MASK 0x000f + +/* USB Command Register define */ +#define USB_CMD_STR_FIFO 0x80 +#define USB_CMD_FLUSH_FIFO 0x40 +#define USB_CMD_ISFT 0x20 +#define USB_CMD_DSFT 0x10 +#define USB_CMD_EP_MASK 0x03 + +/* USB Event and Mask Register define */ +#define USB_E_MSF_MASK 0x0800 +#define USB_E_SFT_MASK 0x0400 +#define USB_E_RESET_MASK 0x0200 +#define USB_E_IDLE_MASK 0x0100 +#define USB_E_TXE4_MASK 0x0080 +#define USB_E_TXE3_MASK 0x0040 +#define USB_E_TXE2_MASK 0x0020 +#define USB_E_TXE1_MASK 0x0010 +#define USB_E_SOF_MASK 0x0008 +#define USB_E_BSY_MASK 0x0004 +#define USB_E_TXB_MASK 0x0002 +#define USB_E_RXB_MASK 0x0001 +#define USBER_ALL_CLEAR 0x0fff + +#define USB_E_DEFAULT_DEVICE (USB_E_RESET_MASK | USB_E_TXE4_MASK | \ + USB_E_TXE3_MASK | USB_E_TXE2_MASK | \ + USB_E_TXE1_MASK | USB_E_BSY_MASK | \ + USB_E_TXB_MASK | USB_E_RXB_MASK) + +#define USB_E_TXE_MASK (USB_E_TXE4_MASK | USB_E_TXE3_MASK|\ + USB_E_TXE2_MASK | USB_E_TXE1_MASK) +/* USB Status Register define */ +#define USB_IDLE_STATUS_MASK 0x01 + +/* USB Start of Frame Timer */ +#define USB_USSFT_MASK 0x3FFF + +/* USB Frame Number Register */ +#define USB_USFRN_MASK 0xFFFF + +struct usb_device_para{ + u16 epptr[4]; + u32 rstate; + u32 rptr; + u16 frame_n; + u16 rbcnt; + u32 rtemp; + u32 rxusb_data; + u16 rxuptr; + u8 reso[2]; + u32 softbl; + u8 sofucrctemp; +}; + +struct usb_ep_para{ + u16 rbase; + u16 tbase; + u8 rbmr; + u8 tbmr; + u16 mrblr; + u16 rbptr; + u16 tbptr; + u32 tstate; + u32 tptr; + u16 tcrc; + u16 tbcnt; + u32 ttemp; + u16 txusbu_ptr; + u8 reserve[2]; +}; + +#define USB_BUSMODE_GBL 0x20 +#define USB_BUSMODE_BO_MASK 0x18 +#define USB_BUSMODE_BO_SHIFT 0x3 +#define USB_BUSMODE_BE 0x2 +#define USB_BUSMODE_CETM 0x04 +#define USB_BUSMODE_DTB 0x02 + +/* Endpoint basic handle */ +#define ep_index(EP) ((EP)->desc->bEndpointAddress & 0xF) +#define ep_maxpacket(EP) ((EP)->ep.maxpacket) +#define ep_is_in(EP) ((ep_index(EP) == 0) ? (EP->udc->ep0_dir == \ + USB_DIR_IN) : ((EP)->desc->bEndpointAddress \ + & USB_DIR_IN) == USB_DIR_IN) + +/* ep0 transfer state */ +#define WAIT_FOR_SETUP 0 +#define DATA_STATE_XMIT 1 +#define DATA_STATE_NEED_ZLP 2 +#define WAIT_FOR_OUT_STATUS 3 +#define DATA_STATE_RECV 4 + +/* ep tramsfer mode */ +#define USBP_TM_CTL 0 +#define USBP_TM_ISO 1 +#define USBP_TM_BULK 2 +#define USBP_TM_INT 3 + +/*----------------------------------------------------------------------------- + USB RX And TX DATA Frame + -----------------------------------------------------------------------------*/ +struct qe_frame{ + u8 *data; + u32 len; + u32 status; + u32 info; + + void *privdata; + struct list_head node; +}; + +/* Frame structure, info field. */ +#define PID_DATA0 0x80000000 /* Data toggle zero */ +#define PID_DATA1 0x40000000 /* Data toggle one */ +#define PID_SETUP 0x20000000 /* setup bit */ +#define SETUP_STATUS 0x10000000 /* setup status bit */ +#define SETADDR_STATUS 0x08000000 /* setupup address status bit */ +#define NO_REQ 0x04000000 /* Frame without request */ +#define HOST_DATA 0x02000000 /* Host data frame */ +#define FIRST_PACKET_IN_FRAME 0x01000000 /* first packet in the frame */ +#define TOKEN_FRAME 0x00800000 /* Host token frame */ +#define ZLP 0x00400000 /* Zero length packet */ +#define IN_TOKEN_FRAME 0x00200000 /* In token package */ +#define OUT_TOKEN_FRAME 0x00100000 /* Out token package */ +#define SETUP_TOKEN_FRAME 0x00080000 /* Setup token package */ +#define STALL_FRAME 0x00040000 /* Stall handshake */ +#define NACK_FRAME 0x00020000 /* Nack handshake */ +#define NO_PID 0x00010000 /* No send PID */ +#define NO_CRC 0x00008000 /* No send CRC */ +#define HOST_COMMAND 0x00004000 /* Host command frame */ + +/* Frame status field */ +/* Receive side */ +#define FRAME_OK 0x00000000 /* Frame tranmitted or received OK */ +#define FRAME_ERROR 0x80000000 /* Error occured on frame */ +#define START_FRAME_LOST 0x40000000 /* START_FRAME_LOST */ +#define END_FRAME_LOST 0x20000000 /* END_FRAME_LOST */ +#define RX_ER_NONOCT 0x10000000 /* Rx Non Octet Aligned Packet */ +#define RX_ER_BITSTUFF 0x08000000 /* Frame Aborted --Received packet + with bit stuff error */ +#define RX_ER_CRC 0x04000000 /* Received packet with CRC error */ +#define RX_ER_OVERUN 0x02000000 /* Over-run occured on reception */ +#define RX_ER_PID 0x01000000 /* Wrong PID received */ +/* Tranmit side */ +#define TX_ER_NAK 0x00800000 /* Received NAK handshake */ +#define TX_ER_STALL 0x00400000 /* Received STALL handshake */ +#define TX_ER_TIMEOUT 0x00200000 /* Transmit time out */ +#define TX_ER_UNDERUN 0x00100000 /* Transmit underrun */ +#define FRAME_INPROGRESS 0x00080000 /* Frame is being transmitted */ +#define ER_DATA_UNDERUN 0x00040000 /* Frame is shorter then expected */ +#define ER_DATA_OVERUN 0x00020000 /* Frame is longer then expected */ + +/* QE USB frame operation functions */ +#define frame_get_length(frm) (frm->len) +#define frame_set_length(frm, leng) (frm->len = leng) +#define frame_get_data(frm) (frm->data) +#define frame_set_data(frm, dat) (frm->data = dat) +#define frame_get_info(frm) (frm->info) +#define frame_set_info(frm, inf) (frm->info = inf) +#define frame_get_status(frm) (frm->status) +#define frame_set_status(frm, stat) (frm->status = stat) +#define frame_get_privdata(frm) (frm->privdata) +#define frame_set_privdata(frm, dat) (frm->privdata = dat) + +static inline void qe_frame_clean(struct qe_frame *frm) +{ + frame_set_data(frm, NULL); + frame_set_length(frm, 0); + frame_set_status(frm, FRAME_OK); + frame_set_info(frm, 0); + frame_set_privdata(frm, NULL); +} + +static inline void qe_frame_init(struct qe_frame *frm) +{ + qe_frame_clean(frm); + INIT_LIST_HEAD(&(frm->node)); +} + +struct qe_req { + struct usb_request req; + struct list_head queue; + /* ep_queue() func will add + a request->queue into a udc_ep->queue 'd tail */ + struct qe_ep *ep; + unsigned mapped:1; +}; + +struct qe_ep { + struct usb_ep ep; + struct list_head queue; + struct qe_udc *udc; + const struct usb_endpoint_descriptor *desc; + struct usb_gadget *gadget; + + u8 state; + + struct qe_bd __iomem *rxbase; + struct qe_bd __iomem *n_rxbd; + struct qe_bd __iomem *e_rxbd; + + struct qe_bd __iomem *txbase; + struct qe_bd __iomem *n_txbd; + struct qe_bd __iomem *c_txbd; + + struct qe_frame *rxframe; + u8 *rxbuffer; + dma_addr_t rxbuf_d; + u8 rxbufmap; + unsigned char localnack; + int has_data; + + struct qe_frame *txframe; + struct qe_req *tx_req; + int sent; /*data already sent */ + int last; /*data sent in the last time*/ + + u8 dir; + u8 epnum; + u8 tm; /* transfer mode */ + u8 data01; + u8 init; + + u8 already_seen; + u8 enable_tasklet; + u8 setup_stage; + u32 last_io; /* timestamp */ + + char name[14]; + + unsigned double_buf:1; + unsigned stopped:1; + unsigned fnf:1; + unsigned has_dma:1; + + u8 ackwait; + u8 dma_channel; + u16 dma_counter; + int lch; + + struct timer_list timer; +}; + +struct qe_udc { + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + struct device *dev; + struct qe_ep eps[USB_MAX_ENDPOINTS]; + struct usb_ctrlrequest local_setup_buff; + spinlock_t lock; /* lock for set/config qe_udc */ + unsigned long soc_type; /* QE or CPM soc */ + + struct qe_req *status_req; /* ep0 status request */ + + /* USB and EP Parameter Block pointer */ + struct usb_device_para __iomem *usb_param; + struct usb_ep_para __iomem *ep_param[4]; + + u32 max_pipes; /* Device max pipes */ + u32 max_use_endpts; /* Max endpointes to be used */ + u32 bus_reset; /* Device is bus reseting */ + u32 resume_state; /* USB state to resume*/ + u32 usb_state; /* USB current state */ + u32 usb_next_state; /* USB next state */ + u32 ep0_state; /* Enpoint zero state */ + u32 ep0_dir; /* Enpoint zero direction: can be + USB_DIR_IN or USB_DIR_OUT*/ + u32 usb_sof_count; /* SOF count */ + u32 errors; /* USB ERRORs count */ + + u8 *tmpbuf; + u32 c_start; + u32 c_end; + + u8 *nullbuf; + u8 *statusbuf; + dma_addr_t nullp; + u8 nullmap; + u8 device_address; /* Device USB address */ + + unsigned int usb_clock; + unsigned int usb_irq; + struct usb_ctlr __iomem *usb_regs; + + struct tasklet_struct rx_tasklet; + + struct completion *done; /* to make sure release() is done */ +}; + +#define EP_STATE_IDLE 0 +#define EP_STATE_NACK 1 +#define EP_STATE_STALL 2 + +/* + * transmit BD's status + */ +#define T_R 0x80000000 /* ready bit */ +#define T_W 0x20000000 /* wrap bit */ +#define T_I 0x10000000 /* interrupt on completion */ +#define T_L 0x08000000 /* last */ +#define T_TC 0x04000000 /* transmit CRC */ +#define T_CNF 0x02000000 /* wait for transmit confirm */ +#define T_LSP 0x01000000 /* Low-speed transaction */ +#define T_PID 0x00c00000 /* packet id */ +#define T_NAK 0x00100000 /* No ack. */ +#define T_STAL 0x00080000 /* Stall recieved */ +#define T_TO 0x00040000 /* time out */ +#define T_UN 0x00020000 /* underrun */ + +#define DEVICE_T_ERROR (T_UN | T_TO) +#define HOST_T_ERROR (T_UN | T_TO | T_NAK | T_STAL) +#define DEVICE_T_BD_MASK DEVICE_T_ERROR +#define HOST_T_BD_MASK HOST_T_ERROR + +#define T_PID_SHIFT 6 +#define T_PID_DATA0 0x00800000 /* Data 0 toggle */ +#define T_PID_DATA1 0x00c00000 /* Data 1 toggle */ + +/* + * receive BD's status + */ +#define R_E 0x80000000 /* buffer empty */ +#define R_W 0x20000000 /* wrap bit */ +#define R_I 0x10000000 /* interrupt on reception */ +#define R_L 0x08000000 /* last */ +#define R_F 0x04000000 /* first */ +#define R_PID 0x00c00000 /* packet id */ +#define R_NO 0x00100000 /* Rx Non Octet Aligned Packet */ +#define R_AB 0x00080000 /* Frame Aborted */ +#define R_CR 0x00040000 /* CRC Error */ +#define R_OV 0x00020000 /* Overrun */ + +#define R_ERROR (R_NO | R_AB | R_CR | R_OV) +#define R_BD_MASK R_ERROR + +#define R_PID_DATA0 0x00000000 +#define R_PID_DATA1 0x00400000 +#define R_PID_SETUP 0x00800000 + +#define CPM_USB_STOP_TX 0x2e600000 +#define CPM_USB_RESTART_TX 0x2e600000 +#define CPM_USB_STOP_TX_OPCODE 0x0a +#define CPM_USB_RESTART_TX_OPCODE 0x0b +#define CPM_USB_EP_SHIFT 5 + +#ifndef CONFIG_CPM +inline int cpm_command(u32 command, u8 opcode) +{ + return -EOPNOTSUPP; +} +#endif + +#ifndef CONFIG_QUICC_ENGINE +inline int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, + u32 cmd_input) +{ + return -EOPNOTSUPP; +} +#endif + +#endif /* __FSL_QE_UDC_H */ diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index 45ad556169f1..091bb55c9aa7 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -23,11 +23,8 @@ #include <linux/ioport.h> #include <linux/types.h> #include <linux/errno.h> -#include <linux/delay.h> -#include <linux/sched.h> #include <linux/slab.h> #include <linux/init.h> -#include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/proc_fs.h> @@ -44,11 +41,9 @@ #include <asm/byteorder.h> #include <asm/io.h> -#include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> #include <asm/dma.h> -#include <asm/cacheflush.h> #include "fsl_usb2_udc.h" @@ -61,8 +56,8 @@ static const char driver_name[] = "fsl-usb2-udc"; static const char driver_desc[] = DRIVER_DESC; -volatile static struct usb_dr_device *dr_regs = NULL; -volatile static struct usb_sys_interface *usb_sys_regs = NULL; +static struct usb_dr_device *dr_regs; +static struct usb_sys_interface *usb_sys_regs; /* it is initialized in probe() */ static struct fsl_udc *udc_controller = NULL; @@ -76,16 +71,14 @@ fsl_ep0_desc = { .wMaxPacketSize = USB_MAX_CTRL_PAYLOAD, }; -static int fsl_udc_suspend(struct platform_device *pdev, pm_message_t state); -static int fsl_udc_resume(struct platform_device *pdev); static void fsl_ep_fifo_flush(struct usb_ep *_ep); #ifdef CONFIG_PPC32 #define fsl_readl(addr) in_le32(addr) -#define fsl_writel(addr, val32) out_le32(val32, addr) +#define fsl_writel(val32, addr) out_le32(addr, val32) #else #define fsl_readl(addr) readl(addr) -#define fsl_writel(addr, val32) writel(addr, val32) +#define fsl_writel(val32, addr) writel(val32, addr) #endif /******************************************************************** @@ -185,10 +178,6 @@ static int dr_controller_setup(struct fsl_udc *udc) unsigned long timeout; #define FSL_UDC_RESET_TIMEOUT 1000 - /* before here, make sure dr_regs has been initialized */ - if (!udc) - return -EINVAL; - /* Stop and reset the usb controller */ tmp = fsl_readl(&dr_regs->usbcmd); tmp &= ~USB_CMD_RUN_STOP; @@ -202,7 +191,7 @@ static int dr_controller_setup(struct fsl_udc *udc) timeout = jiffies + FSL_UDC_RESET_TIMEOUT; while (fsl_readl(&dr_regs->usbcmd) & USB_CMD_CTRL_RESET) { if (time_after(jiffies, timeout)) { - ERR("udc reset timeout! \n"); + ERR("udc reset timeout!\n"); return -ETIMEDOUT; } cpu_relax(); @@ -315,7 +304,8 @@ static void dr_controller_stop(struct fsl_udc *udc) return; } -void dr_ep_setup(unsigned char ep_num, unsigned char dir, unsigned char ep_type) +static void dr_ep_setup(unsigned char ep_num, unsigned char dir, + unsigned char ep_type) { unsigned int tmp_epctrl = 0; @@ -563,7 +553,7 @@ static int fsl_ep_disable(struct usb_ep *_ep) /* nuke all pending requests (does flush) */ nuke(ep, -ESHUTDOWN); - ep->desc = 0; + ep->desc = NULL; ep->stopped = 1; spin_unlock_irqrestore(&udc->lock, flags); @@ -602,7 +592,7 @@ static void fsl_free_request(struct usb_ep *_ep, struct usb_request *_req) } /*-------------------------------------------------------------------------*/ -static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) +static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) { int i = ep_index(ep) * 2 + ep_is_in(ep); u32 temp, bitmask, tmp_stat; @@ -653,13 +643,16 @@ static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) | EP_QUEUE_HEAD_STATUS_HALT)); dQH->size_ioc_int_sts &= temp; + /* Ensure that updates to the QH will occure before priming. */ + wmb(); + /* Prime endpoint by writing 1 to ENDPTPRIME */ temp = ep_is_in(ep) ? (1 << (ep_index(ep) + 16)) : (1 << (ep_index(ep))); fsl_writel(temp, &dr_regs->endpointprime); out: - return 0; + return; } /* Fill in the dTD structure @@ -710,7 +703,7 @@ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length, *is_last = 0; if ((*is_last) == 0) - VDBG("multi-dtd request!\n"); + VDBG("multi-dtd request!"); /* Fill in the transfer size; set active bit */ swap_temp = ((*length << DTD_LENGTH_BIT_POS) | DTD_STATUS_ACTIVE); @@ -773,11 +766,11 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) /* catch various bogus parameters */ if (!_req || !req->req.complete || !req->req.buf || !list_empty(&req->queue)) { - VDBG("%s, bad params\n", __func__); + VDBG("%s, bad params", __func__); return -EINVAL; } if (unlikely(!_ep || !ep->desc)) { - VDBG("%s, bad ep\n", __func__); + VDBG("%s, bad ep", __func__); return -EINVAL; } if (ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) { @@ -1069,7 +1062,7 @@ static int fsl_vbus_session(struct usb_gadget *gadget, int is_active) udc = container_of(gadget, struct fsl_udc, gadget); spin_lock_irqsave(&udc->lock, flags); - VDBG("VBUS %s\n", is_active ? "on" : "off"); + VDBG("VBUS %s", is_active ? "on" : "off"); udc->vbus_active = (is_active != 0); if (can_pullup(udc)) fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP), @@ -1146,7 +1139,6 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) { struct fsl_req *req = udc->status_req; struct fsl_ep *ep; - int status = 0; if (direction == EP_DIR_IN) udc->ep0_dir = USB_DIR_IN; @@ -1164,27 +1156,21 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) req->dtd_count = 0; if (fsl_req_to_dtd(req) == 0) - status = fsl_queue_td(ep, req); + fsl_queue_td(ep, req); else return -ENOMEM; - if (status) - ERR("Can't queue ep0 status request \n"); list_add_tail(&req->queue, &ep->queue); - return status; + return 0; } -static inline int udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe) +static void udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe) { struct fsl_ep *ep = get_ep_by_pipe(udc, pipe); - if (!ep->name) - return 0; - - nuke(ep, -ESHUTDOWN); - - return 0; + if (ep->name) + nuke(ep, -ESHUTDOWN); } /* @@ -1208,10 +1194,8 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, u16 index, u16 length) { u16 tmp = 0; /* Status, cpu endian */ - struct fsl_req *req; struct fsl_ep *ep; - int status = 0; ep = &udc->eps[0]; @@ -1250,14 +1234,10 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, /* prime the data phase */ if ((fsl_req_to_dtd(req) == 0)) - status = fsl_queue_td(ep, req); + fsl_queue_td(ep, req); else /* no mem */ goto stall; - if (status) { - ERR("Can't respond to getstatus request \n"); - goto stall; - } list_add_tail(&req->queue, &ep->queue); udc->ep0_state = DATA_STATE_XMIT; return; @@ -1397,7 +1377,7 @@ static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0, udc->ep0_state = WAIT_FOR_SETUP; break; case WAIT_FOR_SETUP: - ERR("Unexpect ep0 packets \n"); + ERR("Unexpect ep0 packets\n"); break; default: ep0stall(udc); @@ -1476,7 +1456,7 @@ static int process_ep_req(struct fsl_udc *udc, int pipe, status = -EILSEQ; break; } else - ERR("Unknown error has occured (0x%x)!\r\n", + ERR("Unknown error has occured (0x%x)!\n", errors); } else if (le32_to_cpu(curr_td->size_ioc_sts) @@ -1495,7 +1475,7 @@ static int process_ep_req(struct fsl_udc *udc, int pipe, } } else { td_complete++; - VDBG("dTD transmitted successful "); + VDBG("dTD transmitted successful"); } if (j != curr_req->dtd_count - 1) @@ -1568,9 +1548,6 @@ static void port_change_irq(struct fsl_udc *udc) { u32 speed; - if (udc->bus_reset) - udc->bus_reset = 0; - /* Bus resetting is finished */ if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) { /* Get the speed */ @@ -1678,8 +1655,6 @@ static void reset_irq(struct fsl_udc *udc) if (fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET) { VDBG("Bus reset"); - /* Bus is reseting */ - udc->bus_reset = 1; /* Reset all the queues, include XD, dTD, EP queue * head and TR Queue */ reset_queues(udc); @@ -1768,7 +1743,7 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc) } if (irq_src & (USB_STS_ERR | USB_STS_SYS_ERR)) { - VDBG("Error IRQ %x ", irq_src); + VDBG("Error IRQ %x", irq_src); } spin_unlock_irqrestore(&udc->lock, flags); @@ -1799,7 +1774,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) /* lock is needed but whether should use this lock or another */ spin_lock_irqsave(&udc_controller->lock, flags); - driver->driver.bus = 0; + driver->driver.bus = NULL; /* hook up the driver */ udc_controller->driver = driver; udc_controller->gadget.dev.driver = &driver->driver; @@ -1809,8 +1784,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) retval = driver->bind(&udc_controller->gadget); if (retval) { VDBG("bind to %s --> %d", driver->driver.name, retval); - udc_controller->gadget.dev.driver = 0; - udc_controller->driver = 0; + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; goto out; } @@ -1819,12 +1794,12 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) udc_controller->usb_state = USB_STATE_ATTACHED; udc_controller->ep0_state = WAIT_FOR_SETUP; udc_controller->ep0_dir = 0; - printk(KERN_INFO "%s: bind to driver %s \n", + printk(KERN_INFO "%s: bind to driver %s\n", udc_controller->gadget.name, driver->driver.name); out: if (retval) - printk("retval %d \n", retval); + printk("gadget driver register failed %d\n", retval); return retval; } EXPORT_SYMBOL(usb_gadget_register_driver); @@ -1842,7 +1817,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return -EINVAL; if (udc_controller->transceiver) - (void)otg_set_peripheral(udc_controller->transceiver, 0); + otg_set_peripheral(udc_controller->transceiver, NULL); /* stop DR, disable intr */ dr_controller_stop(udc_controller); @@ -1863,10 +1838,10 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) /* unbind gadget and unhook driver. */ driver->unbind(&udc_controller->gadget); - udc_controller->gadget.dev.driver = 0; - udc_controller->driver = 0; + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; - printk("unregistered gadget driver '%s'\r\n", driver->driver.name); + printk("unregistered gadget driver '%s'\n", driver->driver.name); return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); @@ -1922,7 +1897,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbsts); t = scnprintf(next, size, "USB Status Reg:\n" - "Dr Suspend: %d" "Reset Received: %d" "System Error: %s" + "Dr Suspend: %d Reset Received: %d System Error: %s " "USB Error Interrupt: %s\n\n", (tmp_reg & USB_STS_SUSPEND) ? 1 : 0, (tmp_reg & USB_STS_RESET) ? 1 : 0, @@ -1934,11 +1909,11 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbintr); t = scnprintf(next, size, "USB Intrrupt Enable Reg:\n" - "Sleep Enable: %d" "SOF Received Enable: %d" + "Sleep Enable: %d SOF Received Enable: %d " "Reset Enable: %d\n" - "System Error Enable: %d" + "System Error Enable: %d " "Port Change Dectected Enable: %d\n" - "USB Error Intr Enable: %d" "USB Intr Enable: %d\n\n", + "USB Error Intr Enable: %d USB Intr Enable: %d\n\n", (tmp_reg & USB_INTR_DEVICE_SUSPEND) ? 1 : 0, (tmp_reg & USB_INTR_SOF_EN) ? 1 : 0, (tmp_reg & USB_INTR_RESET_EN) ? 1 : 0, @@ -1951,21 +1926,21 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->frindex); t = scnprintf(next, size, - "USB Frame Index Reg:" "Frame Number is 0x%x\n\n", + "USB Frame Index Reg: Frame Number is 0x%x\n\n", (tmp_reg & USB_FRINDEX_MASKS)); size -= t; next += t; tmp_reg = fsl_readl(&dr_regs->deviceaddr); t = scnprintf(next, size, - "USB Device Address Reg:" "Device Addr is 0x%x\n\n", + "USB Device Address Reg: Device Addr is 0x%x\n\n", (tmp_reg & USB_DEVICE_ADDRESS_MASK)); size -= t; next += t; tmp_reg = fsl_readl(&dr_regs->endpointlistaddr); t = scnprintf(next, size, - "USB Endpoint List Address Reg:" + "USB Endpoint List Address Reg: " "Device Addr is 0x%x\n\n", (tmp_reg & USB_EP_LIST_ADDRESS_MASK)); size -= t; @@ -1974,11 +1949,12 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->portsc1); t = scnprintf(next, size, "USB Port Status&Control Reg:\n" - "Port Transceiver Type : %s" "Port Speed: %s \n" - "PHY Low Power Suspend: %s" "Port Reset: %s" - "Port Suspend Mode: %s \n" "Over-current Change: %s" + "Port Transceiver Type : %s Port Speed: %s\n" + "PHY Low Power Suspend: %s Port Reset: %s " + "Port Suspend Mode: %s\n" + "Over-current Change: %s " "Port Enable/Disable Change: %s\n" - "Port Enabled/Disabled: %s" + "Port Enabled/Disabled: %s " "Current Connect Status: %s\n\n", ( { char *s; switch (tmp_reg & PORTSCX_PTS_FSLS) { @@ -2023,7 +1999,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbmode); t = scnprintf(next, size, - "USB Mode Reg:" "Controller Mode is : %s\n\n", ( { + "USB Mode Reg: Controller Mode is: %s\n\n", ( { char *s; switch (tmp_reg & USB_MODE_CTRL_MODE_HOST) { case USB_MODE_CTRL_MODE_IDLE: @@ -2042,7 +2018,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->endptsetupstat); t = scnprintf(next, size, - "Endpoint Setup Status Reg:" "SETUP on ep 0x%x\n\n", + "Endpoint Setup Status Reg: SETUP on ep 0x%x\n\n", (tmp_reg & EP_SETUP_STATUS_MASK)); size -= t; next += t; @@ -2055,12 +2031,12 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, next += t; } tmp_reg = fsl_readl(&dr_regs->endpointprime); - t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n", tmp_reg); + t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n\n", tmp_reg); size -= t; next += t; tmp_reg = usb_sys_regs->snoop1; - t = scnprintf(next, size, "\nSnoop1 Reg : = [0x%x]\n\n", tmp_reg); + t = scnprintf(next, size, "Snoop1 Reg : = [0x%x]\n\n", tmp_reg); size -= t; next += t; @@ -2084,7 +2060,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } else { list_for_each_entry(req, &ep->queue, queue) { t = scnprintf(next, size, - "req %p actual 0x%x length 0x%x buf %p\n", + "req %p actual 0x%x length 0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); size -= t; @@ -2110,7 +2086,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } else { list_for_each_entry(req, &ep->queue, queue) { t = scnprintf(next, size, - "req %p actual 0x%x length" + "req %p actual 0x%x length " "0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); @@ -2202,7 +2178,6 @@ static int __init struct_udc_setup(struct fsl_udc *udc, udc->usb_state = USB_STATE_POWERED; udc->ep0_dir = 0; udc->remote_wakeup = 0; /* default to 0 on reset */ - spin_lock_init(&udc->lock); return 0; } @@ -2254,7 +2229,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) u32 dccparams; if (strcmp(pdev->name, driver_name)) { - VDBG("Wrong device\n"); + VDBG("Wrong device"); return -ENODEV; } @@ -2264,23 +2239,26 @@ static int __init fsl_udc_probe(struct platform_device *pdev) return -ENOMEM; } + spin_lock_init(&udc_controller->lock); + udc_controller->stopped = 1; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { - kfree(udc_controller); - return -ENXIO; + ret = -ENXIO; + goto err_kfree; } if (!request_mem_region(res->start, res->end - res->start + 1, driver_name)) { - ERR("request mem region for %s failed \n", pdev->name); - kfree(udc_controller); - return -EBUSY; + ERR("request mem region for %s failed\n", pdev->name); + ret = -EBUSY; + goto err_kfree; } dr_regs = ioremap(res->start, res->end - res->start + 1); if (!dr_regs) { ret = -ENOMEM; - goto err1; + goto err_release_mem_region; } usb_sys_regs = (struct usb_sys_interface *) @@ -2291,7 +2269,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) if (!(dccparams & DCCPARAMS_DC)) { ERR("This SOC doesn't support device role\n"); ret = -ENODEV; - goto err2; + goto err_iounmap; } /* Get max device endpoints */ /* DEN is bidirectional ep number, max_ep doubles the number */ @@ -2300,22 +2278,22 @@ static int __init fsl_udc_probe(struct platform_device *pdev) udc_controller->irq = platform_get_irq(pdev, 0); if (!udc_controller->irq) { ret = -ENODEV; - goto err2; + goto err_iounmap; } ret = request_irq(udc_controller->irq, fsl_udc_irq, IRQF_SHARED, driver_name, udc_controller); if (ret != 0) { - ERR("cannot request irq %d err %d \n", + ERR("cannot request irq %d err %d\n", udc_controller->irq, ret); - goto err2; + goto err_iounmap; } /* Initialize the udc structure including QH member and other member */ if (struct_udc_setup(udc_controller, pdev)) { ERR("Can't initialize udc data structure\n"); ret = -ENOMEM; - goto err3; + goto err_free_irq; } /* initialize usb hw reg except for regs for EP, @@ -2336,7 +2314,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) udc_controller->gadget.dev.parent = &pdev->dev; ret = device_register(&udc_controller->gadget.dev); if (ret < 0) - goto err3; + goto err_free_irq; /* setup QH and epctrl for ep0 */ ep0_setup(udc_controller); @@ -2366,20 +2344,22 @@ static int __init fsl_udc_probe(struct platform_device *pdev) DTD_ALIGNMENT, UDC_DMA_BOUNDARY); if (udc_controller->td_pool == NULL) { ret = -ENOMEM; - goto err4; + goto err_unregister; } create_proc_file(); return 0; -err4: +err_unregister: device_unregister(&udc_controller->gadget.dev); -err3: +err_free_irq: free_irq(udc_controller->irq, udc_controller); -err2: +err_iounmap: iounmap(dr_regs); -err1: +err_release_mem_region: release_mem_region(res->start, res->end - res->start + 1); +err_kfree: kfree(udc_controller); + udc_controller = NULL; return ret; } @@ -2469,7 +2449,7 @@ module_init(udc_init); static void __exit udc_exit(void) { platform_driver_unregister(&udc_driver); - printk("%s unregistered \n", driver_desc); + printk("%s unregistered\n", driver_desc); } module_exit(udc_exit); diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h index 6131752a38bc..e63ef12645f5 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.h +++ b/drivers/usb/gadget/fsl_usb2_udc.h @@ -424,16 +424,6 @@ struct ep_td_struct { /* Controller dma boundary */ #define UDC_DMA_BOUNDARY 0x1000 -/* -----------------------------------------------------------------------*/ -/* ##### enum data -*/ -typedef enum { - e_ULPI, - e_UTMI_8BIT, - e_UTMI_16BIT, - e_SERIAL -} e_PhyInterface; - /*-------------------------------------------------------------------------*/ /* ### driver private data @@ -469,9 +459,9 @@ struct fsl_ep { #define EP_DIR_OUT 0 struct fsl_udc { - struct usb_gadget gadget; struct usb_gadget_driver *driver; + struct completion *done; /* to make sure release() is done */ struct fsl_ep *eps; unsigned int max_ep; unsigned int irq; @@ -492,20 +482,13 @@ struct fsl_udc { size_t ep_qh_size; /* size after alignment adjustment*/ dma_addr_t ep_qh_dma; /* dma address of QH */ - u32 max_pipes; /* Device max pipes */ - u32 max_use_endpts; /* Max endpointes to be used */ - u32 bus_reset; /* Device is bus reseting */ + u32 max_pipes; /* Device max pipes */ u32 resume_state; /* USB state to resume */ u32 usb_state; /* USB current state */ - u32 usb_next_state; /* USB next state */ u32 ep0_state; /* Endpoint zero state */ u32 ep0_dir; /* Endpoint zero direction: can be USB_DIR_IN or USB_DIR_OUT */ - u32 usb_sof_count; /* SOF count */ - u32 errors; /* USB ERRORs count */ u8 device_address; /* Device USB address */ - - struct completion *done; /* to make sure release() is done */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 17d9905101b7..4e3107dd2f34 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -151,6 +151,13 @@ #define gadget_is_m66592(g) 0 #endif +/* Freescale CPM/QE UDC SUPPORT */ +#ifdef CONFIG_USB_GADGET_FSL_QE +#define gadget_is_fsl_qe(g) !strcmp("fsl_qe_udc", (g)->name) +#else +#define gadget_is_fsl_qe(g) 0 +#endif + // CONFIG_USB_GADGET_SX2 // CONFIG_USB_GADGET_AU1X00 @@ -216,6 +223,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x20; else if (gadget_is_m66592(gadget)) return 0x21; + else if (gadget_is_fsl_qe(gadget)) + return 0x22; return -ENOENT; } diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 6eee760410d6..60d3f9e9b51f 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -222,7 +222,7 @@ static struct usb_config_descriptor config_desc = { * power properties of the device. Is it selfpowered? */ .bmAttributes = USB_CONFIG_ATT_ONE, - .bMaxPower = 1, + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; /* B.3.1 Standard AC Interface Descriptor */ diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 5cfb5ebf3881..8ae70de2c37d 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -178,6 +178,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) /* ep_reset() has already been called */ ep->stopped = 0; + ep->wedged = 0; ep->out_overflow = 0; /* set speed-dependent max packet; may kick in high bandwidth */ @@ -1218,7 +1219,7 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req) static int net2280_fifo_status (struct usb_ep *_ep); static int -net2280_set_halt (struct usb_ep *_ep, int value) +net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) { struct net2280_ep *ep; unsigned long flags; @@ -1239,16 +1240,21 @@ net2280_set_halt (struct usb_ep *_ep, int value) else if (ep->is_in && value && net2280_fifo_status (_ep) != 0) retval = -EAGAIN; else { - VDEBUG (ep->dev, "%s %s halt\n", _ep->name, - value ? "set" : "clear"); + VDEBUG (ep->dev, "%s %s %s\n", _ep->name, + value ? "set" : "clear", + wedged ? "wedge" : "halt"); /* set/clear, then synch memory views with the device */ if (value) { if (ep->num == 0) ep->dev->protocol_stall = 1; else set_halt (ep); - } else + if (wedged) + ep->wedged = 1; + } else { clear_halt (ep); + ep->wedged = 0; + } (void) readl (&ep->regs->ep_rsp); } spin_unlock_irqrestore (&ep->dev->lock, flags); @@ -1257,6 +1263,20 @@ net2280_set_halt (struct usb_ep *_ep, int value) } static int +net2280_set_halt(struct usb_ep *_ep, int value) +{ + return net2280_set_halt_and_wedge(_ep, value, 0); +} + +static int +net2280_set_wedge(struct usb_ep *_ep) +{ + if (!_ep || _ep->name == ep0name) + return -EINVAL; + return net2280_set_halt_and_wedge(_ep, 1, 1); +} + +static int net2280_fifo_status (struct usb_ep *_ep) { struct net2280_ep *ep; @@ -1302,6 +1322,7 @@ static const struct usb_ep_ops net2280_ep_ops = { .dequeue = net2280_dequeue, .set_halt = net2280_set_halt, + .set_wedge = net2280_set_wedge, .fifo_status = net2280_fifo_status, .fifo_flush = net2280_fifo_flush, }; @@ -2410,9 +2431,14 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) goto do_stall; if ((e = get_ep_by_addr (dev, w_index)) == 0) goto do_stall; - clear_halt (e); + if (e->wedged) { + VDEBUG(dev, "%s wedged, halt not cleared\n", + ep->ep.name); + } else { + VDEBUG(dev, "%s clear halt\n", ep->ep.name); + clear_halt(e); + } allow_status (ep); - VDEBUG (dev, "%s clear halt\n", ep->ep.name); goto next_endpoints; } break; @@ -2427,6 +2453,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) goto do_stall; if ((e = get_ep_by_addr (dev, w_index)) == 0) goto do_stall; + if (e->ep.name == ep0name) + goto do_stall; set_halt (e); allow_status (ep); VDEBUG (dev, "%s set halt\n", ep->ep.name); diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index 81a71dbdc2c6..c36852263d93 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -109,6 +109,7 @@ struct net2280_ep { in_fifo_validate : 1, out_overflow : 1, stopped : 1, + wedged : 1, is_in : 1, is_iso : 1, responded : 1; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index bb54cca4c543..34e9e393f929 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2313,6 +2313,13 @@ static int proc_otg_show(struct seq_file *s) tmp = omap_readl(OTG_REV); if (cpu_is_omap24xx()) { + /* + * REVISIT: Not clear how this works on OMAP2. trans + * is ANDed to produce bits 7 and 8, which might make + * sense for USB_TRANSCEIVER_CTRL on OMAP1, + * but with CONTROL_DEVCONF, these bits have something to + * do with the frame adjustment counter and McBSP2. + */ ctrl_name = "control_devconf"; trans = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); } else { diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 2b3b9e1dd2ee..5a3034fdfe47 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -252,7 +252,7 @@ static struct usb_config_descriptor config_desc = { .bConfigurationValue = DEV_CONFIG_VALUE, .iConfiguration = 0, .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1 /* Self-Powered */ + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; static struct usb_interface_descriptor intf_desc = { @@ -1278,8 +1278,7 @@ unknown: /* respond with data transfer before status phase? */ if (value >= 0) { req->length = value; - req->zero = value < wLength - && (value % gadget->ep0->maxpacket) == 0; + req->zero = value < wLength; value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); if (value < 0) { DBG(dev, "ep_queue --> %d\n", value); @@ -1477,7 +1476,6 @@ autoconf_fail: if (gadget->is_otg) { otg_desc.bmAttributes |= USB_OTG_HNP, config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - config_desc.bMaxPower = 4; } spin_lock_init(&dev->lock); diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 7cbc78a6853d..bcf375ca3d72 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -22,7 +22,6 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> -#include <linux/version.h> #include <linux/errno.h> #include <linux/platform_device.h> #include <linux/delay.h> diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 29d13ebe7500..48f51b12d2e2 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1651,7 +1651,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) return -EBUSY; if (!driver->bind || !driver->setup - || driver->speed != USB_SPEED_FULL) { + || driver->speed < USB_SPEED_FULL) { printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n", driver->bind, driver->setup, driver->speed); return -EINVAL; diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 3faa7a7022df..37879af1c433 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -43,6 +43,7 @@ #include "epautoconf.c" #include "f_acm.c" +#include "f_obex.c" #include "f_serial.c" #include "u_serial.c" @@ -56,6 +57,7 @@ #define GS_VENDOR_ID 0x0525 /* NetChip */ #define GS_PRODUCT_ID 0xa4a6 /* Linux-USB Serial Gadget */ #define GS_CDC_PRODUCT_ID 0xa4a7 /* ... as CDC-ACM */ +#define GS_CDC_OBEX_PRODUCT_ID 0xa4a9 /* ... as CDC-OBEX */ /* string IDs are assigned dynamically */ @@ -125,6 +127,10 @@ static int use_acm = true; module_param(use_acm, bool, 0); MODULE_PARM_DESC(use_acm, "Use CDC ACM, default=yes"); +static int use_obex = false; +module_param(use_obex, bool, 0); +MODULE_PARM_DESC(use_obex, "Use CDC OBEX, default=no"); + static unsigned n_ports = 1; module_param(n_ports, uint, 0); MODULE_PARM_DESC(n_ports, "number of ports to create, default=1"); @@ -139,6 +145,8 @@ static int __init serial_bind_config(struct usb_configuration *c) for (i = 0; i < n_ports && status == 0; i++) { if (use_acm) status = acm_bind_config(c, i); + else if (use_obex) + status = obex_bind_config(c, i); else status = gser_bind_config(c, i); } @@ -151,7 +159,6 @@ static struct usb_configuration serial_config_driver = { /* .bConfigurationValue = f(use_acm) */ /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; static int __init gs_bind(struct usb_composite_dev *cdev) @@ -249,6 +256,12 @@ static int __init init(void) device_desc.bDeviceClass = USB_CLASS_COMM; device_desc.idProduct = __constant_cpu_to_le16(GS_CDC_PRODUCT_ID); + } else if (use_obex) { + serial_config_driver.label = "CDC OBEX config"; + serial_config_driver.bConfigurationValue = 3; + device_desc.bDeviceClass = USB_CLASS_COMM; + device_desc.idProduct = + __constant_cpu_to_le16(GS_CDC_OBEX_PRODUCT_ID); } else { serial_config_driver.label = "Generic Serial config"; serial_config_driver.bConfigurationValue = 1; diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index dbd575a194f3..66948b72bb9b 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -873,6 +873,13 @@ struct net_device *gether_connect(struct gether *link) spin_lock(&dev->lock); dev->port_usb = link; link->ioport = dev; + if (netif_running(dev->net)) { + if (link->open) + link->open(link); + } else { + if (link->close) + link->close(link); + } spin_unlock(&dev->lock); netif_carrier_on(dev->net); diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h index af3910d01aea..300f0ed9475d 100644 --- a/drivers/usb/gadget/u_serial.h +++ b/drivers/usb/gadget/u_serial.h @@ -62,5 +62,6 @@ void gserial_disconnect(struct gserial *); /* functions are bound to configurations by a config or gadget driver */ int acm_bind_config(struct usb_configuration *c, u8 port_num); int gser_bind_config(struct usb_configuration *c, u8 port_num); +int obex_bind_config(struct usb_configuration *c, u8 port_num); #endif /* __U_SERIAL_H */ |