diff options
Diffstat (limited to 'drivers/input')
-rw-r--r-- | drivers/input/keyboard/Kconfig | 19 | ||||
-rw-r--r-- | drivers/input/keyboard/Makefile | 2 | ||||
-rw-r--r-- | drivers/input/keyboard/davinci_keyscan.c | 315 | ||||
-rw-r--r-- | drivers/input/keyboard/pxa930_rotary.c | 195 | ||||
-rw-r--r-- | drivers/input/mouse/Kconfig | 6 | ||||
-rw-r--r-- | drivers/input/mouse/Makefile | 1 | ||||
-rw-r--r-- | drivers/input/mouse/pxa930_trkball.c | 250 | ||||
-rw-r--r-- | drivers/input/mouse/synaptics.c | 1 | ||||
-rw-r--r-- | drivers/input/serio/hyperv-keyboard.c | 4 | ||||
-rw-r--r-- | drivers/input/serio/i8042-acpipnpio.h | 7 | ||||
-rw-r--r-- | drivers/input/touchscreen/Kconfig | 42 | ||||
-rw-r--r-- | drivers/input/touchscreen/Makefile | 3 | ||||
-rw-r--r-- | drivers/input/touchscreen/mainstone-wm97xx.c | 10 | ||||
-rw-r--r-- | drivers/input/touchscreen/s3c2410_ts.c | 464 | ||||
-rw-r--r-- | drivers/input/touchscreen/ucb1400_ts.c | 458 | ||||
-rw-r--r-- | drivers/input/touchscreen/zylonite-wm97xx.c | 220 |
16 files changed, 8 insertions, 1989 deletions
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 84490915ae4d..d98650426dc2 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -550,15 +550,6 @@ config KEYBOARD_PXA27x To compile this driver as a module, choose M here: the module will be called pxa27x_keypad. -config KEYBOARD_PXA930_ROTARY - tristate "PXA930/PXA935 Enhanced Rotary Controller Support" - depends on CPU_PXA930 || CPU_PXA935 - help - Enable support for PXA930/PXA935 Enhanced Rotary Controller. - - To compile this driver as a module, choose M here: the - module will be called pxa930_rotary. - config KEYBOARD_PMIC8XXX tristate "Qualcomm PMIC8XXX keypad support" depends on MFD_PM8XXX @@ -657,16 +648,6 @@ config KEYBOARD_SUN4I_LRADC To compile this driver as a module, choose M here: the module will be called sun4i-lradc-keys. -config KEYBOARD_DAVINCI - tristate "TI DaVinci Key Scan" - depends on ARCH_DAVINCI_DM365 - help - Say Y to enable keypad module support for the TI DaVinci - platforms (DM365). - - To compile this driver as a module, choose M here: the - module will be called davinci_keyscan. - config KEYBOARD_IPAQ_MICRO tristate "Buttons on Micro SoC (iPaq h3100,h3600,h3700)" depends on MFD_IPAQ_MICRO diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 5f67196bb2c1..aecef00c5d09 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -18,7 +18,6 @@ obj-$(CONFIG_KEYBOARD_CAP11XX) += cap11xx.o obj-$(CONFIG_KEYBOARD_CLPS711X) += clps711x-keypad.o obj-$(CONFIG_KEYBOARD_CROS_EC) += cros_ec_keyb.o obj-$(CONFIG_KEYBOARD_CYPRESS_SF) += cypress-sf.o -obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o obj-$(CONFIG_KEYBOARD_DLINK_DIR685) += dlink-dir685-touchkeys.o obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o obj-$(CONFIG_KEYBOARD_GOLDFISH_EVENTS) += goldfish_events.o @@ -55,7 +54,6 @@ obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o obj-$(CONFIG_KEYBOARD_PINEPHONE) += pinephone-keyboard.o obj-$(CONFIG_KEYBOARD_PMIC8XXX) += pmic8xxx-keypad.o obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o -obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o obj-$(CONFIG_KEYBOARD_QT1050) += qt1050.o obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c deleted file mode 100644 index f489cd585b33..000000000000 --- a/drivers/input/keyboard/davinci_keyscan.c +++ /dev/null @@ -1,315 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DaVinci Key Scan Driver for TI platforms - * - * Copyright (C) 2009 Texas Instruments, Inc - * - * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com> - * - * Initial Code: Sandeep Paulraj <s-paulraj@ti.com> - */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/types.h> -#include <linux/input.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/errno.h> -#include <linux/slab.h> - -#include <linux/platform_data/keyscan-davinci.h> - -/* Key scan registers */ -#define DAVINCI_KEYSCAN_KEYCTRL 0x0000 -#define DAVINCI_KEYSCAN_INTENA 0x0004 -#define DAVINCI_KEYSCAN_INTFLAG 0x0008 -#define DAVINCI_KEYSCAN_INTCLR 0x000c -#define DAVINCI_KEYSCAN_STRBWIDTH 0x0010 -#define DAVINCI_KEYSCAN_INTERVAL 0x0014 -#define DAVINCI_KEYSCAN_CONTTIME 0x0018 -#define DAVINCI_KEYSCAN_CURRENTST 0x001c -#define DAVINCI_KEYSCAN_PREVSTATE 0x0020 -#define DAVINCI_KEYSCAN_EMUCTRL 0x0024 -#define DAVINCI_KEYSCAN_IODFTCTRL 0x002c - -/* Key Control Register (KEYCTRL) */ -#define DAVINCI_KEYSCAN_KEYEN 0x00000001 -#define DAVINCI_KEYSCAN_PREVMODE 0x00000002 -#define DAVINCI_KEYSCAN_CHATOFF 0x00000004 -#define DAVINCI_KEYSCAN_AUTODET 0x00000008 -#define DAVINCI_KEYSCAN_SCANMODE 0x00000010 -#define DAVINCI_KEYSCAN_OUTTYPE 0x00000020 - -/* Masks for the interrupts */ -#define DAVINCI_KEYSCAN_INT_CONT 0x00000008 -#define DAVINCI_KEYSCAN_INT_OFF 0x00000004 -#define DAVINCI_KEYSCAN_INT_ON 0x00000002 -#define DAVINCI_KEYSCAN_INT_CHANGE 0x00000001 -#define DAVINCI_KEYSCAN_INT_ALL 0x0000000f - -struct davinci_ks { - struct input_dev *input; - struct davinci_ks_platform_data *pdata; - int irq; - void __iomem *base; - resource_size_t pbase; - size_t base_size; - unsigned short keymap[]; -}; - -/* Initializing the kp Module */ -static int __init davinci_ks_initialize(struct davinci_ks *davinci_ks) -{ - struct device *dev = &davinci_ks->input->dev; - struct davinci_ks_platform_data *pdata = davinci_ks->pdata; - u32 matrix_ctrl; - - /* Enable all interrupts */ - __raw_writel(DAVINCI_KEYSCAN_INT_ALL, - davinci_ks->base + DAVINCI_KEYSCAN_INTENA); - - /* Clear interrupts if any */ - __raw_writel(DAVINCI_KEYSCAN_INT_ALL, - davinci_ks->base + DAVINCI_KEYSCAN_INTCLR); - - /* Setup the scan period = strobe + interval */ - __raw_writel(pdata->strobe, - davinci_ks->base + DAVINCI_KEYSCAN_STRBWIDTH); - __raw_writel(pdata->interval, - davinci_ks->base + DAVINCI_KEYSCAN_INTERVAL); - __raw_writel(0x01, - davinci_ks->base + DAVINCI_KEYSCAN_CONTTIME); - - /* Define matrix type */ - switch (pdata->matrix_type) { - case DAVINCI_KEYSCAN_MATRIX_4X4: - matrix_ctrl = 0; - break; - case DAVINCI_KEYSCAN_MATRIX_5X3: - matrix_ctrl = (1 << 6); - break; - default: - dev_err(dev->parent, "wrong matrix type\n"); - return -EINVAL; - } - - /* Enable key scan module and set matrix type */ - __raw_writel(DAVINCI_KEYSCAN_AUTODET | DAVINCI_KEYSCAN_KEYEN | - matrix_ctrl, davinci_ks->base + DAVINCI_KEYSCAN_KEYCTRL); - - return 0; -} - -static irqreturn_t davinci_ks_interrupt(int irq, void *dev_id) -{ - struct davinci_ks *davinci_ks = dev_id; - struct device *dev = &davinci_ks->input->dev; - unsigned short *keymap = davinci_ks->keymap; - int keymapsize = davinci_ks->pdata->keymapsize; - u32 prev_status, new_status, changed; - bool release; - int keycode = KEY_UNKNOWN; - int i; - - /* Disable interrupt */ - __raw_writel(0x0, davinci_ks->base + DAVINCI_KEYSCAN_INTENA); - - /* Reading previous and new status of the key scan */ - prev_status = __raw_readl(davinci_ks->base + DAVINCI_KEYSCAN_PREVSTATE); - new_status = __raw_readl(davinci_ks->base + DAVINCI_KEYSCAN_CURRENTST); - - changed = prev_status ^ new_status; - - if (changed) { - /* - * It goes through all bits in 'changed' to ensure - * that no key changes are being missed - */ - for (i = 0 ; i < keymapsize; i++) { - if ((changed>>i) & 0x1) { - keycode = keymap[i]; - release = (new_status >> i) & 0x1; - dev_dbg(dev->parent, "key %d %s\n", keycode, - release ? "released" : "pressed"); - input_report_key(davinci_ks->input, keycode, - !release); - input_sync(davinci_ks->input); - } - } - /* Clearing interrupt */ - __raw_writel(DAVINCI_KEYSCAN_INT_ALL, - davinci_ks->base + DAVINCI_KEYSCAN_INTCLR); - } - - /* Enable interrupts */ - __raw_writel(0x1, davinci_ks->base + DAVINCI_KEYSCAN_INTENA); - - return IRQ_HANDLED; -} - -static int __init davinci_ks_probe(struct platform_device *pdev) -{ - struct davinci_ks *davinci_ks; - struct input_dev *key_dev; - struct resource *res, *mem; - struct device *dev = &pdev->dev; - struct davinci_ks_platform_data *pdata = dev_get_platdata(dev); - int error, i; - - if (pdata->device_enable) { - error = pdata->device_enable(dev); - if (error < 0) { - dev_dbg(dev, "device enable function failed\n"); - return error; - } - } - - if (!pdata->keymap) { - dev_dbg(dev, "no keymap from pdata\n"); - return -EINVAL; - } - - davinci_ks = kzalloc(sizeof(struct davinci_ks) + - sizeof(unsigned short) * pdata->keymapsize, GFP_KERNEL); - if (!davinci_ks) { - dev_dbg(dev, "could not allocate memory for private data\n"); - return -ENOMEM; - } - - memcpy(davinci_ks->keymap, pdata->keymap, - sizeof(unsigned short) * pdata->keymapsize); - - key_dev = input_allocate_device(); - if (!key_dev) { - dev_dbg(dev, "could not allocate input device\n"); - error = -ENOMEM; - goto fail1; - } - - davinci_ks->input = key_dev; - - davinci_ks->irq = platform_get_irq(pdev, 0); - if (davinci_ks->irq < 0) { - error = davinci_ks->irq; - goto fail2; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "no mem resource\n"); - error = -EINVAL; - goto fail2; - } - - davinci_ks->pbase = res->start; - davinci_ks->base_size = resource_size(res); - - mem = request_mem_region(davinci_ks->pbase, davinci_ks->base_size, - pdev->name); - if (!mem) { - dev_err(dev, "key scan registers at %08x are not free\n", - davinci_ks->pbase); - error = -EBUSY; - goto fail2; - } - - davinci_ks->base = ioremap(davinci_ks->pbase, davinci_ks->base_size); - if (!davinci_ks->base) { - dev_err(dev, "can't ioremap MEM resource.\n"); - error = -ENOMEM; - goto fail3; - } - - /* Enable auto repeat feature of Linux input subsystem */ - if (pdata->rep) - __set_bit(EV_REP, key_dev->evbit); - - /* Setup input device */ - __set_bit(EV_KEY, key_dev->evbit); - - /* Setup the platform data */ - davinci_ks->pdata = pdata; - - for (i = 0; i < davinci_ks->pdata->keymapsize; i++) - __set_bit(davinci_ks->pdata->keymap[i], key_dev->keybit); - - key_dev->name = "davinci_keyscan"; - key_dev->phys = "davinci_keyscan/input0"; - key_dev->dev.parent = dev; - key_dev->id.bustype = BUS_HOST; - key_dev->id.vendor = 0x0001; - key_dev->id.product = 0x0001; - key_dev->id.version = 0x0001; - key_dev->keycode = davinci_ks->keymap; - key_dev->keycodesize = sizeof(davinci_ks->keymap[0]); - key_dev->keycodemax = davinci_ks->pdata->keymapsize; - - error = input_register_device(davinci_ks->input); - if (error < 0) { - dev_err(dev, "unable to register davinci key scan device\n"); - goto fail4; - } - - error = request_irq(davinci_ks->irq, davinci_ks_interrupt, - 0, pdev->name, davinci_ks); - if (error < 0) { - dev_err(dev, "unable to register davinci key scan interrupt\n"); - goto fail5; - } - - error = davinci_ks_initialize(davinci_ks); - if (error < 0) { - dev_err(dev, "unable to initialize davinci key scan device\n"); - goto fail6; - } - - platform_set_drvdata(pdev, davinci_ks); - return 0; - -fail6: - free_irq(davinci_ks->irq, davinci_ks); -fail5: - input_unregister_device(davinci_ks->input); - key_dev = NULL; -fail4: - iounmap(davinci_ks->base); -fail3: - release_mem_region(davinci_ks->pbase, davinci_ks->base_size); -fail2: - input_free_device(key_dev); -fail1: - kfree(davinci_ks); - - return error; -} - -static int davinci_ks_remove(struct platform_device *pdev) -{ - struct davinci_ks *davinci_ks = platform_get_drvdata(pdev); - - free_irq(davinci_ks->irq, davinci_ks); - - input_unregister_device(davinci_ks->input); - - iounmap(davinci_ks->base); - release_mem_region(davinci_ks->pbase, davinci_ks->base_size); - - kfree(davinci_ks); - - return 0; -} - -static struct platform_driver davinci_ks_driver = { - .driver = { - .name = "davinci_keyscan", - }, - .remove = davinci_ks_remove, -}; - -module_platform_driver_probe(davinci_ks_driver, davinci_ks_probe); - -MODULE_AUTHOR("Miguel Aguilar"); -MODULE_DESCRIPTION("Texas Instruments DaVinci Key Scan Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c deleted file mode 100644 index 2fe9dcfe0a6f..000000000000 --- a/drivers/input/keyboard/pxa930_rotary.c +++ /dev/null @@ -1,195 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Driver for the enhanced rotary controller on pxa930 and pxa935 - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/slab.h> - -#include <linux/platform_data/keyboard-pxa930_rotary.h> - -#define SBCR (0x04) -#define ERCR (0x0c) - -#define SBCR_ERSB (1 << 5) - -struct pxa930_rotary { - struct input_dev *input_dev; - void __iomem *mmio_base; - int last_ercr; - - struct pxa930_rotary_platform_data *pdata; -}; - -static void clear_sbcr(struct pxa930_rotary *r) -{ - uint32_t sbcr = __raw_readl(r->mmio_base + SBCR); - - __raw_writel(sbcr | SBCR_ERSB, r->mmio_base + SBCR); - __raw_writel(sbcr & ~SBCR_ERSB, r->mmio_base + SBCR); -} - -static irqreturn_t rotary_irq(int irq, void *dev_id) -{ - struct pxa930_rotary *r = dev_id; - struct pxa930_rotary_platform_data *pdata = r->pdata; - int ercr, delta, key; - - ercr = __raw_readl(r->mmio_base + ERCR) & 0xf; - clear_sbcr(r); - - delta = ercr - r->last_ercr; - if (delta == 0) - return IRQ_HANDLED; - - r->last_ercr = ercr; - - if (pdata->up_key && pdata->down_key) { - key = (delta > 0) ? pdata->up_key : pdata->down_key; - input_report_key(r->input_dev, key, 1); - input_sync(r->input_dev); - input_report_key(r->input_dev, key, 0); - } else - input_report_rel(r->input_dev, pdata->rel_code, delta); - - input_sync(r->input_dev); - - return IRQ_HANDLED; -} - -static int pxa930_rotary_open(struct input_dev *dev) -{ - struct pxa930_rotary *r = input_get_drvdata(dev); - - clear_sbcr(r); - - return 0; -} - -static void pxa930_rotary_close(struct input_dev *dev) -{ - struct pxa930_rotary *r = input_get_drvdata(dev); - - clear_sbcr(r); -} - -static int pxa930_rotary_probe(struct platform_device *pdev) -{ - struct pxa930_rotary_platform_data *pdata = - dev_get_platdata(&pdev->dev); - struct pxa930_rotary *r; - struct input_dev *input_dev; - struct resource *res; - int irq; - int err; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENXIO; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no I/O memory defined\n"); - return -ENXIO; - } - - if (!pdata) { - dev_err(&pdev->dev, "no platform data defined\n"); - return -EINVAL; - } - - r = kzalloc(sizeof(struct pxa930_rotary), GFP_KERNEL); - if (!r) - return -ENOMEM; - - r->mmio_base = ioremap(res->start, resource_size(res)); - if (r->mmio_base == NULL) { - dev_err(&pdev->dev, "failed to remap IO memory\n"); - err = -ENXIO; - goto failed_free; - } - - r->pdata = pdata; - platform_set_drvdata(pdev, r); - - /* allocate and register the input device */ - input_dev = input_allocate_device(); - if (!input_dev) { - dev_err(&pdev->dev, "failed to allocate input device\n"); - err = -ENOMEM; - goto failed_free_io; - } - - input_dev->name = pdev->name; - input_dev->id.bustype = BUS_HOST; - input_dev->open = pxa930_rotary_open; - input_dev->close = pxa930_rotary_close; - input_dev->dev.parent = &pdev->dev; - - if (pdata->up_key && pdata->down_key) { - __set_bit(pdata->up_key, input_dev->keybit); - __set_bit(pdata->down_key, input_dev->keybit); - __set_bit(EV_KEY, input_dev->evbit); - } else { - __set_bit(pdata->rel_code, input_dev->relbit); - __set_bit(EV_REL, input_dev->evbit); - } - - r->input_dev = input_dev; - input_set_drvdata(input_dev, r); - - err = request_irq(irq, rotary_irq, 0, - "enhanced rotary", r); - if (err) { - dev_err(&pdev->dev, "failed to request IRQ\n"); - goto failed_free_input; - } - - err = input_register_device(input_dev); - if (err) { - dev_err(&pdev->dev, "failed to register input device\n"); - goto failed_free_irq; - } - - return 0; - -failed_free_irq: - free_irq(irq, r); -failed_free_input: - input_free_device(input_dev); -failed_free_io: - iounmap(r->mmio_base); -failed_free: - kfree(r); - return err; -} - -static int pxa930_rotary_remove(struct platform_device *pdev) -{ - struct pxa930_rotary *r = platform_get_drvdata(pdev); - - free_irq(platform_get_irq(pdev, 0), r); - input_unregister_device(r->input_dev); - iounmap(r->mmio_base); - kfree(r); - - return 0; -} - -static struct platform_driver pxa930_rotary_driver = { - .driver = { - .name = "pxa930-rotary", - }, - .probe = pxa930_rotary_probe, - .remove = pxa930_rotary_remove, -}; -module_platform_driver(pxa930_rotary_driver); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller"); -MODULE_AUTHOR("Yao Yong <yaoyong@marvell.com>"); diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index 63c9cda555c3..32cc4c62a716 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -393,12 +393,6 @@ config MOUSE_GPIO To compile this driver as a module, choose M here: the module will be called gpio_mouse. -config MOUSE_PXA930_TRKBALL - tristate "PXA930 Trackball mouse" - depends on CPU_PXA930 || CPU_PXA935 - help - Say Y here to support PXA930 Trackball mouse. - config MOUSE_MAPLE tristate "Maple mouse (for the Dreamcast)" depends on MAPLE diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile index e49f08565076..92b3204ce84e 100644 --- a/drivers/input/mouse/Makefile +++ b/drivers/input/mouse/Makefile @@ -18,7 +18,6 @@ obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o obj-$(CONFIG_MOUSE_NAVPOINT_PXA27x) += navpoint.o obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o obj-$(CONFIG_MOUSE_PS2) += psmouse.o -obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o obj-$(CONFIG_MOUSE_SYNAPTICS_I2C) += synaptics_i2c.o diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c deleted file mode 100644 index f04ba12dbfa8..000000000000 --- a/drivers/input/mouse/pxa930_trkball.c +++ /dev/null @@ -1,250 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * PXA930 track ball mouse driver - * - * Copyright (C) 2007 Marvell International Ltd. - * 2008-02-28: Yong Yao <yaoyong@marvell.com> - * initial version - */ - -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/slab.h> - -#include <linux/platform_data/mouse-pxa930_trkball.h> - -/* Trackball Controller Register Definitions */ -#define TBCR (0x000C) -#define TBCNTR (0x0010) -#define TBSBC (0x0014) - -#define TBCR_TBRST (1 << 1) -#define TBCR_TBSB (1 << 10) - -#define TBCR_Y_FLT(n) (((n) & 0xf) << 6) -#define TBCR_X_FLT(n) (((n) & 0xf) << 2) - -#define TBCNTR_YM(n) (((n) >> 24) & 0xff) -#define TBCNTR_YP(n) (((n) >> 16) & 0xff) -#define TBCNTR_XM(n) (((n) >> 8) & 0xff) -#define TBCNTR_XP(n) ((n) & 0xff) - -#define TBSBC_TBSBC (0x1) - -struct pxa930_trkball { - struct pxa930_trkball_platform_data *pdata; - - /* Memory Mapped Register */ - struct resource *mem; - void __iomem *mmio_base; - - struct input_dev *input; -}; - -static irqreturn_t pxa930_trkball_interrupt(int irq, void *dev_id) -{ - struct pxa930_trkball *trkball = dev_id; - struct input_dev *input = trkball->input; - int tbcntr, x, y; - - /* According to the spec software must read TBCNTR twice: - * if the read value is the same, the reading is valid - */ - tbcntr = __raw_readl(trkball->mmio_base + TBCNTR); - - if (tbcntr == __raw_readl(trkball->mmio_base + TBCNTR)) { - x = (TBCNTR_XP(tbcntr) - TBCNTR_XM(tbcntr)) / 2; - y = (TBCNTR_YP(tbcntr) - TBCNTR_YM(tbcntr)) / 2; - - input_report_rel(input, REL_X, x); - input_report_rel(input, REL_Y, y); - input_sync(input); - } - - __raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC); - __raw_writel(0, trkball->mmio_base + TBSBC); - - return IRQ_HANDLED; -} - -/* For TBCR, we need to wait for a while to make sure it has been modified. */ -static int write_tbcr(struct pxa930_trkball *trkball, int v) -{ - int i = 100; - - __raw_writel(v, trkball->mmio_base + TBCR); - - while (--i) { - if (__raw_readl(trkball->mmio_base + TBCR) == v) - break; - msleep(1); - } - - if (i == 0) { - pr_err("%s: timed out writing TBCR(%x)!\n", __func__, v); - return -ETIMEDOUT; - } - - return 0; -} - -static void pxa930_trkball_config(struct pxa930_trkball *trkball) -{ - uint32_t tbcr; - - /* According to spec, need to write the filters of x,y to 0xf first! */ - tbcr = __raw_readl(trkball->mmio_base + TBCR); - write_tbcr(trkball, tbcr | TBCR_X_FLT(0xf) | TBCR_Y_FLT(0xf)); - write_tbcr(trkball, TBCR_X_FLT(trkball->pdata->x_filter) | - TBCR_Y_FLT(trkball->pdata->y_filter)); - - /* According to spec, set TBCR_TBRST first, before clearing it! */ - tbcr = __raw_readl(trkball->mmio_base + TBCR); - write_tbcr(trkball, tbcr | TBCR_TBRST); - write_tbcr(trkball, tbcr & ~TBCR_TBRST); - - __raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC); - __raw_writel(0, trkball->mmio_base + TBSBC); - - pr_debug("%s: final TBCR=%x!\n", __func__, - __raw_readl(trkball->mmio_base + TBCR)); -} - -static int pxa930_trkball_open(struct input_dev *dev) -{ - struct pxa930_trkball *trkball = input_get_drvdata(dev); - - pxa930_trkball_config(trkball); - - return 0; -} - -static void pxa930_trkball_disable(struct pxa930_trkball *trkball) -{ - uint32_t tbcr = __raw_readl(trkball->mmio_base + TBCR); - - /* Held in reset, gate the 32-KHz input clock off */ - write_tbcr(trkball, tbcr | TBCR_TBRST); -} - -static void pxa930_trkball_close(struct input_dev *dev) -{ - struct pxa930_trkball *trkball = input_get_drvdata(dev); - - pxa930_trkball_disable(trkball); -} - -static int pxa930_trkball_probe(struct platform_device *pdev) -{ - struct pxa930_trkball *trkball; - struct input_dev *input; - struct resource *res; - int irq, error; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENXIO; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "failed to get register memory\n"); - return -ENXIO; - } - - trkball = kzalloc(sizeof(struct pxa930_trkball), GFP_KERNEL); - if (!trkball) - return -ENOMEM; - - trkball->pdata = dev_get_platdata(&pdev->dev); - if (!trkball->pdata) { - dev_err(&pdev->dev, "no platform data defined\n"); - error = -EINVAL; - goto failed; - } - - trkball->mmio_base = ioremap(res->start, resource_size(res)); - if (!trkball->mmio_base) { - dev_err(&pdev->dev, "failed to ioremap registers\n"); - error = -ENXIO; - goto failed; - } - - /* held the module in reset, will be enabled in open() */ - pxa930_trkball_disable(trkball); - - error = request_irq(irq, pxa930_trkball_interrupt, 0, - pdev->name, trkball); - if (error) { - dev_err(&pdev->dev, "failed to request irq: %d\n", error); - goto failed_free_io; - } - - platform_set_drvdata(pdev, trkball); - - input = input_allocate_device(); - if (!input) { - dev_err(&pdev->dev, "failed to allocate input device\n"); - error = -ENOMEM; - goto failed_free_irq; - } - - input->name = pdev->name; - input->id.bustype = BUS_HOST; - input->open = pxa930_trkball_open; - input->close = pxa930_trkball_close; - input->dev.parent = &pdev->dev; - input_set_drvdata(input, trkball); - - trkball->input = input; - - input_set_capability(input, EV_REL, REL_X); - input_set_capability(input, EV_REL, REL_Y); - - error = input_register_device(input); - if (error) { - dev_err(&pdev->dev, "unable to register input device\n"); - goto failed_free_input; - } - - return 0; - -failed_free_input: - input_free_device(input); -failed_free_irq: - free_irq(irq, trkball); -failed_free_io: - iounmap(trkball->mmio_base); -failed: - kfree(trkball); - return error; -} - -static int pxa930_trkball_remove(struct platform_device *pdev) -{ - struct pxa930_trkball *trkball = platform_get_drvdata(pdev); - int irq = platform_get_irq(pdev, 0); - - input_unregister_device(trkball->input); - free_irq(irq, trkball); - iounmap(trkball->mmio_base); - kfree(trkball); - - return 0; -} - -static struct platform_driver pxa930_trkball_driver = { - .driver = { - .name = "pxa930-trkball", - }, - .probe = pxa930_trkball_probe, - .remove = pxa930_trkball_remove, -}; -module_platform_driver(pxa930_trkball_driver); - -MODULE_AUTHOR("Yong Yao <yaoyong@marvell.com>"); -MODULE_DESCRIPTION("PXA930 Trackball Mouse Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index b0f776448a1c..fa021af8506e 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -192,7 +192,6 @@ static const char * const smbus_pnp_ids[] = { "SYN3221", /* HP 15-ay000 */ "SYN323d", /* HP Spectre X360 13-w013dx */ "SYN3257", /* HP Envy 13-ad105ng */ - "SYN3286", /* HP Laptop 15-da3001TU */ NULL }; diff --git a/drivers/input/serio/hyperv-keyboard.c b/drivers/input/serio/hyperv-keyboard.c index d62aefb2e245..31def6ce5157 100644 --- a/drivers/input/serio/hyperv-keyboard.c +++ b/drivers/input/serio/hyperv-keyboard.c @@ -369,7 +369,7 @@ err_free_mem: return error; } -static int hv_kbd_remove(struct hv_device *hv_dev) +static void hv_kbd_remove(struct hv_device *hv_dev) { struct hv_kbd_dev *kbd_dev = hv_get_drvdata(hv_dev); @@ -378,8 +378,6 @@ static int hv_kbd_remove(struct hv_device *hv_dev) kfree(kbd_dev); hv_set_drvdata(hv_dev, NULL); - - return 0; } static int hv_kbd_suspend(struct hv_device *hv_dev) diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h index 46f8a694291e..efc61736099b 100644 --- a/drivers/input/serio/i8042-acpipnpio.h +++ b/drivers/input/serio/i8042-acpipnpio.h @@ -1240,6 +1240,13 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = { }, { .matches = { + DMI_MATCH(DMI_BOARD_NAME, "PCX0DX"), + }, + .driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS | + SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP) + }, + { + .matches = { DMI_MATCH(DMI_BOARD_NAME, "X170SM"), }, .driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS | diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 68d99a112e14..1a2049b336a6 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -490,18 +490,6 @@ config TOUCHSCREEN_IPROC To compile this driver as a module, choose M here: the module will be called bcm_iproc_tsc. -config TOUCHSCREEN_S3C2410 - tristate "Samsung S3C2410/generic touchscreen input driver" - depends on ARCH_S3C24XX || SAMSUNG_DEV_TS - depends on S3C_ADC - help - Say Y here if you have the s3c2410 touchscreen. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called s3c2410_ts. - config TOUCHSCREEN_S6SY761 tristate "Samsung S6SY761 Touchscreen driver" depends on I2C @@ -839,22 +827,6 @@ config TOUCHSCREEN_TI_AM335X_TSC To compile this driver as a module, choose M here: the module will be called ti_am335x_tsc. -config TOUCHSCREEN_UCB1400 - tristate "Philips UCB1400 touchscreen" - depends on AC97_BUS - depends on UCB1400_CORE - help - This enables support for the Philips UCB1400 touchscreen interface. - The UCB1400 is an AC97 audio codec. The touchscreen interface - will be initialized only after the ALSA subsystem has been - brought up and the UCB1400 detected. You therefore have to - configure ALSA support as well (either built-in or modular, - independently of whether this driver is itself built-in or - modular) for this driver to work. - - To compile this driver as a module, choose M here: the - module will be called ucb1400_ts. - config TOUCHSCREEN_PIXCIR tristate "PIXCIR I2C touchscreens" depends on I2C @@ -940,20 +912,6 @@ config TOUCHSCREEN_WM97XX_MAINSTONE To compile this driver as a module, choose M here: the module will be called mainstone-wm97xx. -config TOUCHSCREEN_WM97XX_ZYLONITE - tristate "Zylonite accelerated touch" - depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE - depends on SND_PXA2XX_LIB_AC97 - select TOUCHSCREEN_WM9713 - help - Say Y here for support for streaming mode with the touchscreen - on Zylonite systems. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called zylonite-wm97xx. - config TOUCHSCREEN_USB_COMPOSITE tristate "USB Touchscreen Driver" depends on USB_ARCH_HAS_HCD diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 4968c370479a..f2fd28cc34a6 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -76,7 +76,6 @@ obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_RM_TS) += raydium_i2c_ts.o -obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o obj-$(CONFIG_TOUCHSCREEN_S6SY761) += s6sy761.o obj-$(CONFIG_TOUCHSCREEN_SILEAD) += silead.o obj-$(CONFIG_TOUCHSCREEN_SIS_I2C) += sis_i2c.o @@ -98,7 +97,6 @@ obj-$(CONFIG_TOUCHSCREEN_TSC2005) += tsc2005.o tsc2007-y := tsc2007_core.o tsc2007-$(CONFIG_TOUCHSCREEN_TSC2007_IIO) += tsc2007_iio.o obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o -obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C) += wacom_i2c.o obj-$(CONFIG_TOUCHSCREEN_WDT87XX_I2C) += wdt87xx_i2c.o @@ -108,7 +106,6 @@ wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o -obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_SX8654) += sx8654.o obj-$(CONFIG_TOUCHSCREEN_TPS6507X) += tps6507x-ts.o obj-$(CONFIG_TOUCHSCREEN_ZET6223) += zet6223.o diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c index c39f49720fe4..85b95ed461e7 100644 --- a/drivers/input/touchscreen/mainstone-wm97xx.c +++ b/drivers/input/touchscreen/mainstone-wm97xx.c @@ -187,16 +187,6 @@ static int wm97xx_acc_startup(struct wm97xx *wm) "mainstone accelerated touchscreen driver, %d samples/sec\n", cinfo[sp_idx].speed); - /* IRQ driven touchscreen is used on Palm hardware */ - if (machine_is_palmt5() || machine_is_palmtx() || machine_is_palmld()) { - pen_int = 1; - /* There is some obscure mutant of WM9712 interbred with WM9713 - * used on Palm HW */ - wm->variant = WM97xx_WM1613; - } else if (machine_is_zylonite()) { - pen_int = 1; - } - if (pen_int) { gpiod_irq = gpiod_get(wm->dev, "touch", GPIOD_IN); if (IS_ERR(gpiod_irq)) diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c deleted file mode 100644 index 2e70c0b79444..000000000000 --- a/drivers/input/touchscreen/s3c2410_ts.c +++ /dev/null @@ -1,464 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Samsung S3C24XX touchscreen driver - * - * Copyright 2004 Arnaud Patard <arnaud.patard@rtp-net.org> - * Copyright 2008 Ben Dooks <ben-linux@fluff.org> - * Copyright 2009 Simtec Electronics <linux@simtec.co.uk> - * - * Additional work by Herbert Pƶtzl <herbert@13thfloor.at> and - * Harald Welte <laforge@openmoko.org> - */ - -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/input.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <linux/soc/samsung/s3c-adc.h> -#include <linux/platform_data/touchscreen-s3c2410.h> - -#define S3C2410_ADCCON (0x00) -#define S3C2410_ADCTSC (0x04) -#define S3C2410_ADCDLY (0x08) -#define S3C2410_ADCDAT0 (0x0C) -#define S3C2410_ADCDAT1 (0x10) -#define S3C64XX_ADCUPDN (0x14) -#define S3C2443_ADCMUX (0x18) -#define S3C64XX_ADCCLRINT (0x18) -#define S5P_ADCMUX (0x1C) -#define S3C64XX_ADCCLRINTPNDNUP (0x20) - -/* ADCTSC Register Bits */ -#define S3C2443_ADCTSC_UD_SEN (1 << 8) -#define S3C2410_ADCTSC_YM_SEN (1<<7) -#define S3C2410_ADCTSC_YP_SEN (1<<6) -#define S3C2410_ADCTSC_XM_SEN (1<<5) -#define S3C2410_ADCTSC_XP_SEN (1<<4) -#define S3C2410_ADCTSC_PULL_UP_DISABLE (1<<3) -#define S3C2410_ADCTSC_AUTO_PST (1<<2) -#define S3C2410_ADCTSC_XY_PST(x) (((x)&0x3)<<0) - -/* ADCDAT0 Bits */ -#define S3C2410_ADCDAT0_UPDOWN (1<<15) -#define S3C2410_ADCDAT0_AUTO_PST (1<<14) -#define S3C2410_ADCDAT0_XY_PST (0x3<<12) -#define S3C2410_ADCDAT0_XPDATA_MASK (0x03FF) - -/* ADCDAT1 Bits */ -#define S3C2410_ADCDAT1_UPDOWN (1<<15) -#define S3C2410_ADCDAT1_AUTO_PST (1<<14) -#define S3C2410_ADCDAT1_XY_PST (0x3<<12) -#define S3C2410_ADCDAT1_YPDATA_MASK (0x03FF) - - -#define TSC_SLEEP (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0)) - -#define INT_DOWN (0) -#define INT_UP (1 << 8) - -#define WAIT4INT (S3C2410_ADCTSC_YM_SEN | \ - S3C2410_ADCTSC_YP_SEN | \ - S3C2410_ADCTSC_XP_SEN | \ - S3C2410_ADCTSC_XY_PST(3)) - -#define AUTOPST (S3C2410_ADCTSC_YM_SEN | \ - S3C2410_ADCTSC_YP_SEN | \ - S3C2410_ADCTSC_XP_SEN | \ - S3C2410_ADCTSC_AUTO_PST | \ - S3C2410_ADCTSC_XY_PST(0)) - -#define FEAT_PEN_IRQ (1 << 0) /* HAS ADCCLRINTPNDNUP */ - -/* Per-touchscreen data. */ - -/** - * struct s3c2410ts - driver touchscreen state. - * @client: The ADC client we registered with the core driver. - * @dev: The device we are bound to. - * @input: The input device we registered with the input subsystem. - * @clock: The clock for the adc. - * @io: Pointer to the IO base. - * @xp: The accumulated X position data. - * @yp: The accumulated Y position data. - * @irq_tc: The interrupt number for pen up/down interrupt - * @count: The number of samples collected. - * @shift: The log2 of the maximum count to read in one go. - * @features: The features supported by the TSADC MOdule. - */ -struct s3c2410ts { - struct s3c_adc_client *client; - struct device *dev; - struct input_dev *input; - struct clk *clock; - void __iomem *io; - unsigned long xp; - unsigned long yp; - int irq_tc; - int count; - int shift; - int features; -}; - -static struct s3c2410ts ts; - -/** - * get_down - return the down state of the pen - * @data0: The data read from ADCDAT0 register. - * @data1: The data read from ADCDAT1 register. - * - * Return non-zero if both readings show that the pen is down. - */ -static inline bool get_down(unsigned long data0, unsigned long data1) -{ - /* returns true if both data values show stylus down */ - return (!(data0 & S3C2410_ADCDAT0_UPDOWN) && - !(data1 & S3C2410_ADCDAT0_UPDOWN)); -} - -static void touch_timer_fire(struct timer_list *unused) -{ - unsigned long data0; - unsigned long data1; - bool down; - - data0 = readl(ts.io + S3C2410_ADCDAT0); - data1 = readl(ts.io + S3C2410_ADCDAT1); - - down = get_down(data0, data1); - - if (down) { - if (ts.count == (1 << ts.shift)) { - ts.xp >>= ts.shift; - ts.yp >>= ts.shift; - - dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n", - __func__, ts.xp, ts.yp, ts.count); - - input_report_abs(ts.input, ABS_X, ts.xp); - input_report_abs(ts.input, ABS_Y, ts.yp); - - input_report_key(ts.input, BTN_TOUCH, 1); - input_sync(ts.input); - - ts.xp = 0; - ts.yp = 0; - ts.count = 0; - } - - s3c_adc_start(ts.client, 0, 1 << ts.shift); - } else { - ts.xp = 0; - ts.yp = 0; - ts.count = 0; - - input_report_key(ts.input, BTN_TOUCH, 0); - input_sync(ts.input); - - writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC); - } -} - -static DEFINE_TIMER(touch_timer, touch_timer_fire); - -/** - * stylus_irq - touchscreen stylus event interrupt - * @irq: The interrupt number - * @dev_id: The device ID. - * - * Called when the IRQ_TC is fired for a pen up or down event. - */ -static irqreturn_t stylus_irq(int irq, void *dev_id) -{ - unsigned long data0; - unsigned long data1; - bool down; - - data0 = readl(ts.io + S3C2410_ADCDAT0); - data1 = readl(ts.io + S3C2410_ADCDAT1); - - down = get_down(data0, data1); - - /* TODO we should never get an interrupt with down set while - * the timer is running, but maybe we ought to verify that the - * timer isn't running anyways. */ - - if (down) - s3c_adc_start(ts.client, 0, 1 << ts.shift); - else - dev_dbg(ts.dev, "%s: count=%d\n", __func__, ts.count); - - if (ts.features & FEAT_PEN_IRQ) { - /* Clear pen down/up interrupt */ - writel(0x0, ts.io + S3C64XX_ADCCLRINTPNDNUP); - } - - return IRQ_HANDLED; -} - -/** - * s3c24xx_ts_conversion - ADC conversion callback - * @client: The client that was registered with the ADC core. - * @data0: The reading from ADCDAT0. - * @data1: The reading from ADCDAT1. - * @left: The number of samples left. - * - * Called when a conversion has finished. - */ -static void s3c24xx_ts_conversion(struct s3c_adc_client *client, - unsigned data0, unsigned data1, - unsigned *left) -{ - dev_dbg(ts.dev, "%s: %d,%d\n", __func__, data0, data1); - - ts.xp += data0; - ts.yp += data1; - - ts.count++; - - /* From tests, it seems that it is unlikely to get a pen-up - * event during the conversion process which means we can - * ignore any pen-up events with less than the requisite - * count done. - * - * In several thousand conversions, no pen-ups where detected - * before count completed. - */ -} - -/** - * s3c24xx_ts_select - ADC selection callback. - * @client: The client that was registered with the ADC core. - * @select: The reason for select. - * - * Called when the ADC core selects (or deslects) us as a client. - */ -static void s3c24xx_ts_select(struct s3c_adc_client *client, unsigned select) -{ - if (select) { - writel(S3C2410_ADCTSC_PULL_UP_DISABLE | AUTOPST, - ts.io + S3C2410_ADCTSC); - } else { - mod_timer(&touch_timer, jiffies+1); - writel(WAIT4INT | INT_UP, ts.io + S3C2410_ADCTSC); - } -} - -/** - * s3c2410ts_probe - device core probe entry point - * @pdev: The device we are being bound to. - * - * Initialise, find and allocate any resources we need to run and then - * register with the ADC and input systems. - */ -static int s3c2410ts_probe(struct platform_device *pdev) -{ - struct s3c2410_ts_mach_info *info; - struct device *dev = &pdev->dev; - struct input_dev *input_dev; - struct resource *res; - int ret = -EINVAL; - - /* Initialise input stuff */ - memset(&ts, 0, sizeof(struct s3c2410ts)); - - ts.dev = dev; - - info = dev_get_platdata(dev); - if (!info) { - dev_err(dev, "no platform data, cannot attach\n"); - return -EINVAL; - } - - dev_dbg(dev, "initialising touchscreen\n"); - - ts.clock = clk_get(dev, "adc"); - if (IS_ERR(ts.clock)) { - dev_err(dev, "cannot get adc clock source\n"); - return -ENOENT; - } - - ret = clk_prepare_enable(ts.clock); - if (ret) { - dev_err(dev, "Failed! to enabled clocks\n"); - goto err_clk_get; - } - dev_dbg(dev, "got and enabled clocks\n"); - - ts.irq_tc = ret = platform_get_irq(pdev, 0); - if (ret < 0) { - dev_err(dev, "no resource for interrupt\n"); - goto err_clk; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "no resource for registers\n"); - ret = -ENOENT; - goto err_clk; - } - - ts.io = ioremap(res->start, resource_size(res)); - if (ts.io == NULL) { - dev_err(dev, "cannot map registers\n"); - ret = -ENOMEM; - goto err_clk; - } - - /* inititalise the gpio */ - if (info->cfg_gpio) - info->cfg_gpio(to_platform_device(ts.dev)); - - ts.client = s3c_adc_register(pdev, s3c24xx_ts_select, - s3c24xx_ts_conversion, 1); - if (IS_ERR(ts.client)) { - dev_err(dev, "failed to register adc client\n"); - ret = PTR_ERR(ts.client); - goto err_iomap; - } - - /* Initialise registers */ - if ((info->delay & 0xffff) > 0) - writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY); - - writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC); - - input_dev = input_allocate_device(); - if (!input_dev) { - dev_err(dev, "Unable to allocate the input device !!\n"); - ret = -ENOMEM; - goto err_iomap; - } - - ts.input = input_dev; - ts.input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); - ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0); - input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0); - - ts.input->name = "S3C24XX TouchScreen"; - ts.input->id.bustype = BUS_HOST; - ts.input->id.vendor = 0xDEAD; - ts.input->id.product = 0xBEEF; - ts.input->id.version = 0x0102; - - ts.shift = info->oversampling_shift; - ts.features = platform_get_device_id(pdev)->driver_data; - - ret = request_irq(ts.irq_tc, stylus_irq, 0, - "s3c2410_ts_pen", ts.input); - if (ret) { - dev_err(dev, "cannot get TC interrupt\n"); - goto err_inputdev; - } - - dev_info(dev, "driver attached, registering input device\n"); - - /* All went ok, so register to the input system */ - ret = input_register_device(ts.input); - if (ret < 0) { - dev_err(dev, "failed to register input device\n"); - ret = -EIO; - goto err_tcirq; - } - - return 0; - - err_tcirq: - free_irq(ts.irq_tc, ts.input); - err_inputdev: - input_free_device(ts.input); - err_iomap: - iounmap(ts.io); - err_clk: - clk_disable_unprepare(ts.clock); - del_timer_sync(&touch_timer); - err_clk_get: - clk_put(ts.clock); - return ret; -} - -/** - * s3c2410ts_remove - device core removal entry point - * @pdev: The device we are being removed from. - * - * Free up our state ready to be removed. - */ -static int s3c2410ts_remove(struct platform_device *pdev) -{ - free_irq(ts.irq_tc, ts.input); - del_timer_sync(&touch_timer); - - clk_disable_unprepare(ts.clock); - clk_put(ts.clock); - - input_unregister_device(ts.input); - iounmap(ts.io); - - return 0; -} - -#ifdef CONFIG_PM -static int s3c2410ts_suspend(struct device *dev) -{ - writel(TSC_SLEEP, ts.io + S3C2410_ADCTSC); - disable_irq(ts.irq_tc); - clk_disable(ts.clock); - - return 0; -} - -static int s3c2410ts_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct s3c2410_ts_mach_info *info = dev_get_platdata(&pdev->dev); - - clk_enable(ts.clock); - enable_irq(ts.irq_tc); - - /* Initialise registers */ - if ((info->delay & 0xffff) > 0) - writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY); - - writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC); - - return 0; -} - -static const struct dev_pm_ops s3c_ts_pmops = { - .suspend = s3c2410ts_suspend, - .resume = s3c2410ts_resume, -}; -#endif - -static const struct platform_device_id s3cts_driver_ids[] = { - { "s3c2410-ts", 0 }, - { "s3c2440-ts", 0 }, - { "s3c64xx-ts", FEAT_PEN_IRQ }, - { } -}; -MODULE_DEVICE_TABLE(platform, s3cts_driver_ids); - -static struct platform_driver s3c_ts_driver = { - .driver = { - .name = "samsung-ts", -#ifdef CONFIG_PM - .pm = &s3c_ts_pmops, -#endif - }, - .id_table = s3cts_driver_ids, - .probe = s3c2410ts_probe, - .remove = s3c2410ts_remove, -}; -module_platform_driver(s3c_ts_driver); - -MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, " - "Ben Dooks <ben@simtec.co.uk>, " - "Simtec Electronics <linux@simtec.co.uk>"); -MODULE_DESCRIPTION("S3C24XX Touchscreen driver"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c deleted file mode 100644 index dfd3b35590c3..000000000000 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ /dev/null @@ -1,458 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Philips UCB1400 touchscreen driver - * - * Author: Nicolas Pitre - * Created: September 25, 2006 - * Copyright: MontaVista Software, Inc. - * - * Spliting done by: Marek Vasut <marek.vasut@gmail.com> - * If something doesn't work and it worked before spliting, e-mail me, - * dont bother Nicolas please ;-) - * - * This code is heavily based on ucb1x00-*.c copyrighted by Russell King - * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has - * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request. - */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/wait.h> -#include <linux/input.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <linux/ucb1400.h> - -#define UCB1400_TS_POLL_PERIOD 10 /* ms */ - -static bool adcsync; -static int ts_delay = 55; /* us */ -static int ts_delay_pressure; /* us */ - -/* Switch to interrupt mode. */ -static void ucb1400_ts_mode_int(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND | - UCB_TS_CR_MODE_INT); -} - -/* - * Switch to pressure mode, and read pressure. We don't need to wait - * here, since both plates are being driven. - */ -static unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - - udelay(ts_delay_pressure); - - return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync); -} - -/* - * Switch to X position mode and measure Y plate. We switch the plate - * configuration in pressure mode, then switch to position mode. This - * gives a faster response time. Even so, we need to wait about 55us - * for things to stabilise. - */ -static unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); - - udelay(ts_delay); - - return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync); -} - -/* - * Switch to Y position mode and measure X plate. We switch the plate - * configuration in pressure mode, then switch to position mode. This - * gives a faster response time. Even so, we need to wait about 55us - * for things to stabilise. - */ -static int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); - - udelay(ts_delay); - - return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPX, adcsync); -} - -/* - * Switch to X plate resistance mode. Set MX to ground, PX to - * supply. Measure current. - */ -static unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - return ucb1400_adc_read(ucb->ac97, 0, adcsync); -} - -/* - * Switch to Y plate resistance mode. Set MY to ground, PY to - * supply. Measure current. - */ -static unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - return ucb1400_adc_read(ucb->ac97, 0, adcsync); -} - -static int ucb1400_ts_pen_up(struct ucb1400_ts *ucb) -{ - unsigned short val = ucb1400_reg_read(ucb->ac97, UCB_TS_CR); - - return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW); -} - -static void ucb1400_ts_irq_enable(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, UCB_IE_TSPX); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_TSPX); -} - -static void ucb1400_ts_irq_disable(struct ucb1400_ts *ucb) -{ - ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0); -} - -static void ucb1400_ts_report_event(struct input_dev *idev, u16 pressure, u16 x, u16 y) -{ - input_report_abs(idev, ABS_X, x); - input_report_abs(idev, ABS_Y, y); - input_report_abs(idev, ABS_PRESSURE, pressure); - input_report_key(idev, BTN_TOUCH, 1); - input_sync(idev); -} - -static void ucb1400_ts_event_release(struct input_dev *idev) -{ - input_report_abs(idev, ABS_PRESSURE, 0); - input_report_key(idev, BTN_TOUCH, 0); - input_sync(idev); -} - -static void ucb1400_clear_pending_irq(struct ucb1400_ts *ucb) -{ - unsigned int isr; - - isr = ucb1400_reg_read(ucb->ac97, UCB_IE_STATUS); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - - if (isr & UCB_IE_TSPX) - ucb1400_ts_irq_disable(ucb); - else - dev_dbg(&ucb->ts_idev->dev, - "ucb1400: unexpected IE_STATUS = %#x\n", isr); -} - -/* - * A restriction with interrupts exists when using the ucb1400, as - * the codec read/write routines may sleep while waiting for codec - * access completion and uses semaphores for access control to the - * AC97 bus. Therefore the driver is forced to use threaded interrupt - * handler. - */ -static irqreturn_t ucb1400_irq(int irqnr, void *devid) -{ - struct ucb1400_ts *ucb = devid; - unsigned int x, y, p; - - if (unlikely(irqnr != ucb->irq)) - return IRQ_NONE; - - ucb1400_clear_pending_irq(ucb); - - /* Start with a small delay before checking pendown state */ - msleep(UCB1400_TS_POLL_PERIOD); - - while (!ucb->stopped && !ucb1400_ts_pen_up(ucb)) { - ucb1400_adc_enable(ucb->ac97); - x = ucb1400_ts_read_xpos(ucb); - y = ucb1400_ts_read_ypos(ucb); - p = ucb1400_ts_read_pressure(ucb); - ucb1400_adc_disable(ucb->ac97); - - ucb1400_ts_report_event(ucb->ts_idev, p, x, y); - - wait_event_timeout(ucb->ts_wait, ucb->stopped, - msecs_to_jiffies(UCB1400_TS_POLL_PERIOD)); - } - - ucb1400_ts_event_release(ucb->ts_idev); - - if (!ucb->stopped) { - /* Switch back to interrupt mode. */ - ucb1400_ts_mode_int(ucb); - ucb1400_ts_irq_enable(ucb); - } - - return IRQ_HANDLED; -} - -static void ucb1400_ts_stop(struct ucb1400_ts *ucb) -{ - /* Signal IRQ thread to stop polling and disable the handler. */ - ucb->stopped = true; - mb(); - wake_up(&ucb->ts_wait); - disable_irq(ucb->irq); - - ucb1400_ts_irq_disable(ucb); - ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0); -} - -/* Must be called with ts->lock held */ -static void ucb1400_ts_start(struct ucb1400_ts *ucb) -{ - /* Tell IRQ thread that it may poll the device. */ - ucb->stopped = false; - mb(); - - ucb1400_ts_mode_int(ucb); - ucb1400_ts_irq_enable(ucb); - - enable_irq(ucb->irq); -} - -static int ucb1400_ts_open(struct input_dev *idev) -{ - struct ucb1400_ts *ucb = input_get_drvdata(idev); - - ucb1400_ts_start(ucb); - - return 0; -} - -static void ucb1400_ts_close(struct input_dev *idev) -{ - struct ucb1400_ts *ucb = input_get_drvdata(idev); - - ucb1400_ts_stop(ucb); -} - -#ifndef NO_IRQ -#define NO_IRQ 0 -#endif - -/* - * Try to probe our interrupt, rather than relying on lots of - * hard-coded machine dependencies. - */ -static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb, - struct platform_device *pdev) -{ - unsigned long mask, timeout; - - mask = probe_irq_on(); - - /* Enable the ADC interrupt. */ - ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, UCB_IE_ADC); - ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_ADC); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - - /* Cause an ADC interrupt. */ - ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA); - ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START); - - /* Wait for the conversion to complete. */ - timeout = jiffies + HZ/2; - while (!(ucb1400_reg_read(ucb->ac97, UCB_ADC_DATA) & - UCB_ADC_DAT_VALID)) { - cpu_relax(); - if (time_after(jiffies, timeout)) { - dev_err(&pdev->dev, "timed out in IRQ probe\n"); - probe_irq_off(mask); - return -ENODEV; - } - } - ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, 0); - - /* Disable and clear interrupt. */ - ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, 0); - ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff); - ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - - /* Read triggered interrupt. */ - ucb->irq = probe_irq_off(mask); - if (ucb->irq < 0 || ucb->irq == NO_IRQ) - return -ENODEV; - - return 0; -} - -static int ucb1400_ts_probe(struct platform_device *pdev) -{ - struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev); - int error, x_res, y_res; - u16 fcsr; - - ucb->ts_idev = input_allocate_device(); - if (!ucb->ts_idev) { - error = -ENOMEM; - goto err; - } - - /* Only in case the IRQ line wasn't supplied, try detecting it */ - if (ucb->irq < 0) { - error = ucb1400_ts_detect_irq(ucb, pdev); - if (error) { - dev_err(&pdev->dev, "IRQ probe failed\n"); - goto err_free_devs; - } - } - dev_dbg(&pdev->dev, "found IRQ %d\n", ucb->irq); - - init_waitqueue_head(&ucb->ts_wait); - - input_set_drvdata(ucb->ts_idev, ucb); - - ucb->ts_idev->dev.parent = &pdev->dev; - ucb->ts_idev->name = "UCB1400 touchscreen interface"; - ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97, - AC97_VENDOR_ID1); - ucb->ts_idev->id.product = ucb->id; - ucb->ts_idev->open = ucb1400_ts_open; - ucb->ts_idev->close = ucb1400_ts_close; - ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY); - ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - - /* - * Enable ADC filter to prevent horrible jitter on Colibri. - * This also further reduces jitter on boards where ADCSYNC - * pin is connected. - */ - fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR); - ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE); - - ucb1400_adc_enable(ucb->ac97); - x_res = ucb1400_ts_read_xres(ucb); - y_res = ucb1400_ts_read_yres(ucb); - ucb1400_adc_disable(ucb->ac97); - dev_dbg(&pdev->dev, "x/y = %d/%d\n", x_res, y_res); - - input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0); - input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0); - input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0); - - ucb1400_ts_stop(ucb); - - error = request_threaded_irq(ucb->irq, NULL, ucb1400_irq, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - "UCB1400", ucb); - if (error) { - dev_err(&pdev->dev, - "unable to grab irq%d: %d\n", ucb->irq, error); - goto err_free_devs; - } - - error = input_register_device(ucb->ts_idev); - if (error) - goto err_free_irq; - - return 0; - -err_free_irq: - free_irq(ucb->irq, ucb); -err_free_devs: - input_free_device(ucb->ts_idev); -err: - return error; -} - -static int ucb1400_ts_remove(struct platform_device *pdev) -{ - struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev); - - free_irq(ucb->irq, ucb); - input_unregister_device(ucb->ts_idev); - - return 0; -} - -static int __maybe_unused ucb1400_ts_suspend(struct device *dev) -{ - struct ucb1400_ts *ucb = dev_get_platdata(dev); - struct input_dev *idev = ucb->ts_idev; - - mutex_lock(&idev->mutex); - - if (input_device_enabled(idev)) - ucb1400_ts_stop(ucb); - - mutex_unlock(&idev->mutex); - return 0; -} - -static int __maybe_unused ucb1400_ts_resume(struct device *dev) -{ - struct ucb1400_ts *ucb = dev_get_platdata(dev); - struct input_dev *idev = ucb->ts_idev; - - mutex_lock(&idev->mutex); - - if (input_device_enabled(idev)) - ucb1400_ts_start(ucb); - - mutex_unlock(&idev->mutex); - return 0; -} - -static SIMPLE_DEV_PM_OPS(ucb1400_ts_pm_ops, - ucb1400_ts_suspend, ucb1400_ts_resume); - -static struct platform_driver ucb1400_ts_driver = { - .probe = ucb1400_ts_probe, - .remove = ucb1400_ts_remove, - .driver = { - .name = "ucb1400_ts", - .pm = &ucb1400_ts_pm_ops, - }, -}; -module_platform_driver(ucb1400_ts_driver); - -module_param(adcsync, bool, 0444); -MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin."); - -module_param(ts_delay, int, 0444); -MODULE_PARM_DESC(ts_delay, "Delay between panel setup and" - " position read. Default = 55us."); - -module_param(ts_delay_pressure, int, 0444); -MODULE_PARM_DESC(ts_delay_pressure, - "delay between panel setup and pressure read." - " Default = 0us."); - -MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c deleted file mode 100644 index a70fe4abe520..000000000000 --- a/drivers/input/touchscreen/zylonite-wm97xx.c +++ /dev/null @@ -1,220 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver - * - * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC. - * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> - * Parts Copyright : Ian Molton <spyro@f2s.com> - * Andrew Zabolotny <zap@homelink.ru> - * - * Notes: - * This is a wm97xx extended touch driver supporting interrupt driven - * and continuous operation on Marvell Zylonite development systems - * (which have a WM9713 on board). - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/soc/pxa/cpu.h> -#include <linux/wm97xx.h> - -#include <sound/pxa2xx-lib.h> - -struct continuous { - u16 id; /* codec id */ - u8 code; /* continuous code */ - u8 reads; /* number of coord reads per read cycle */ - u32 speed; /* number of coords per second */ -}; - -#define WM_READS(sp) ((sp / HZ) + 1) - -static const struct continuous cinfo[] = { - { WM9713_ID2, 0, WM_READS(94), 94 }, - { WM9713_ID2, 1, WM_READS(120), 120 }, - { WM9713_ID2, 2, WM_READS(154), 154 }, - { WM9713_ID2, 3, WM_READS(188), 188 }, -}; - -/* continuous speed index */ -static int sp_idx; - -/* - * Pen sampling frequency (Hz) in continuous mode. - */ -static int cont_rate = 200; -module_param(cont_rate, int, 0); -MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)"); - -/* - * Pressure readback. - * - * Set to 1 to read back pen down pressure - */ -static int pressure; -module_param(pressure, int, 0); -MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)"); - -/* - * AC97 touch data slot. - * - * Touch screen readback data ac97 slot - */ -static int ac97_touch_slot = 5; -module_param(ac97_touch_slot, int, 0); -MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number"); - - -/* flush AC97 slot 5 FIFO machines */ -static void wm97xx_acc_pen_up(struct wm97xx *wm) -{ - int i; - - msleep(1); - - for (i = 0; i < 16; i++) - pxa2xx_ac97_read_modr(); -} - -static int wm97xx_acc_pen_down(struct wm97xx *wm) -{ - u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES; - int reads = 0; - static u16 last, tries; - - /* When the AC97 queue has been drained we need to allow time - * to buffer up samples otherwise we end up spinning polling - * for samples. The controller can't have a suitably low - * threshold set to use the notifications it gives. - */ - msleep(1); - - if (tries > 5) { - tries = 0; - return RC_PENUP; - } - - x = pxa2xx_ac97_read_modr(); - if (x == last) { - tries++; - return RC_AGAIN; - } - last = x; - do { - if (reads) - x = pxa2xx_ac97_read_modr(); - y = pxa2xx_ac97_read_modr(); - if (pressure) - p = pxa2xx_ac97_read_modr(); - - dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n", - x, y, p); - - /* are samples valid */ - if ((x & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_X || - (y & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_Y || - (p & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_PRES) - goto up; - - /* coordinate is good */ - tries = 0; - input_report_abs(wm->input_dev, ABS_X, x & 0xfff); - input_report_abs(wm->input_dev, ABS_Y, y & 0xfff); - input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff); - input_report_key(wm->input_dev, BTN_TOUCH, (p != 0)); - input_sync(wm->input_dev); - reads++; - } while (reads < cinfo[sp_idx].reads); -up: - return RC_PENDOWN | RC_AGAIN; -} - -static int wm97xx_acc_startup(struct wm97xx *wm) -{ - int idx; - - /* check we have a codec */ - if (wm->ac97 == NULL) - return -ENODEV; - - /* Go you big red fire engine */ - for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) { - if (wm->id != cinfo[idx].id) - continue; - sp_idx = idx; - if (cont_rate <= cinfo[idx].speed) - break; - } - wm->acc_rate = cinfo[sp_idx].code; - wm->acc_slot = ac97_touch_slot; - dev_info(wm->dev, - "zylonite accelerated touchscreen driver, %d samples/sec\n", - cinfo[sp_idx].speed); - - return 0; -} - -static struct wm97xx_mach_ops zylonite_mach_ops = { - .acc_enabled = 1, - .acc_pen_up = wm97xx_acc_pen_up, - .acc_pen_down = wm97xx_acc_pen_down, - .acc_startup = wm97xx_acc_startup, - .irq_gpio = WM97XX_GPIO_2, -}; - -static int zylonite_wm97xx_probe(struct platform_device *pdev) -{ - struct wm97xx *wm = platform_get_drvdata(pdev); - struct gpio_desc *gpio_touch_irq; - int err; - - gpio_touch_irq = devm_gpiod_get(&pdev->dev, "touch", GPIOD_IN); - err = PTR_ERR_OR_ZERO(gpio_touch_irq); - if (err) { - dev_err(&pdev->dev, "Cannot get irq gpio: %d\n", err); - return err; - } - - wm->pen_irq = gpiod_to_irq(gpio_touch_irq); - irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH); - - wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_STICKY, - WM97XX_GPIO_WAKE); - wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_NOTSTICKY, - WM97XX_GPIO_NOWAKE); - - return wm97xx_register_mach_ops(wm, &zylonite_mach_ops); -} - -static int zylonite_wm97xx_remove(struct platform_device *pdev) -{ - struct wm97xx *wm = platform_get_drvdata(pdev); - - wm97xx_unregister_mach_ops(wm); - - return 0; -} - -static struct platform_driver zylonite_wm97xx_driver = { - .probe = zylonite_wm97xx_probe, - .remove = zylonite_wm97xx_remove, - .driver = { - .name = "wm97xx-touch", - }, -}; -module_platform_driver(zylonite_wm97xx_driver); - -/* Module information */ -MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); -MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite"); -MODULE_LICENSE("GPL"); |