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Diffstat (limited to 'arch/mips/vr41xx/common/vrc4173.c')
-rw-r--r--arch/mips/vr41xx/common/vrc4173.c582
1 files changed, 0 insertions, 582 deletions
diff --git a/arch/mips/vr41xx/common/vrc4173.c b/arch/mips/vr41xx/common/vrc4173.c
deleted file mode 100644
index 3f1ae9721e4e..000000000000
--- a/arch/mips/vr41xx/common/vrc4173.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/*
- * vrc4173.c, NEC VRC4173 base driver for NEC VR4122/VR4131.
- *
- * Copyright (C) 2001-2003 MontaVista Software Inc.
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com>
- * Copyright (C) 2004 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
- * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
- *
- * 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
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/pci.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-#include <asm/vr41xx/irq.h>
-#include <asm/vr41xx/vr41xx.h>
-#include <asm/vr41xx/vrc4173.h>
-
-MODULE_DESCRIPTION("NEC VRC4173 base driver for NEC VR4122/4131");
-MODULE_AUTHOR("Yoichi Yuasa <yyuasa@mvista.com>");
-MODULE_LICENSE("GPL");
-
-#define VRC4173_CMUCLKMSK 0x040
- #define MSKPIU 0x0001
- #define MSKKIU 0x0002
- #define MSKAIU 0x0004
- #define MSKPS2CH1 0x0008
- #define MSKPS2CH2 0x0010
- #define MSKUSB 0x0020
- #define MSKCARD1 0x0040
- #define MSKCARD2 0x0080
- #define MSKAC97 0x0100
- #define MSK48MUSB 0x0400
- #define MSK48MPIN 0x0800
- #define MSK48MOSC 0x1000
-#define VRC4173_CMUSRST 0x042
- #define USBRST 0x0001
- #define CARD1RST 0x0002
- #define CARD2RST 0x0004
- #define AC97RST 0x0008
-
-#define VRC4173_SYSINT1REG 0x060
-#define VRC4173_MSYSINT1REG 0x06c
-#define VRC4173_MPIUINTREG 0x06e
-#define VRC4173_MAIUINTREG 0x070
-#define VRC4173_MKIUINTREG 0x072
-
-#define VRC4173_SELECTREG 0x09e
- #define SEL3 0x0008
- #define SEL2 0x0004
- #define SEL1 0x0002
- #define SEL0 0x0001
-
-static struct pci_device_id vrc4173_id_table[] __devinitdata = {
- { .vendor = PCI_VENDOR_ID_NEC,
- .device = PCI_DEVICE_ID_NEC_VRC4173,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID, },
- { .vendor = 0, },
-};
-
-unsigned long vrc4173_io_offset = 0;
-
-EXPORT_SYMBOL(vrc4173_io_offset);
-
-static int vrc4173_initialized;
-static uint16_t vrc4173_cmuclkmsk;
-static uint16_t vrc4173_selectreg;
-static DEFINE_SPINLOCK(vrc4173_cmu_lock);
-static DEFINE_SPINLOCK(vrc4173_giu_lock);
-
-static inline void set_cmusrst(uint16_t val)
-{
- uint16_t cmusrst;
-
- cmusrst = vrc4173_inw(VRC4173_CMUSRST);
- cmusrst |= val;
- vrc4173_outw(cmusrst, VRC4173_CMUSRST);
-}
-
-static inline void clear_cmusrst(uint16_t val)
-{
- uint16_t cmusrst;
-
- cmusrst = vrc4173_inw(VRC4173_CMUSRST);
- cmusrst &= ~val;
- vrc4173_outw(cmusrst, VRC4173_CMUSRST);
-}
-
-void vrc4173_supply_clock(vrc4173_clock_t clock)
-{
- if (vrc4173_initialized) {
- spin_lock_irq(&vrc4173_cmu_lock);
-
- switch (clock) {
- case VRC4173_PIU_CLOCK:
- vrc4173_cmuclkmsk |= MSKPIU;
- break;
- case VRC4173_KIU_CLOCK:
- vrc4173_cmuclkmsk |= MSKKIU;
- break;
- case VRC4173_AIU_CLOCK:
- vrc4173_cmuclkmsk |= MSKAIU;
- break;
- case VRC4173_PS2_CH1_CLOCK:
- vrc4173_cmuclkmsk |= MSKPS2CH1;
- break;
- case VRC4173_PS2_CH2_CLOCK:
- vrc4173_cmuclkmsk |= MSKPS2CH2;
- break;
- case VRC4173_USBU_PCI_CLOCK:
- set_cmusrst(USBRST);
- vrc4173_cmuclkmsk |= MSKUSB;
- break;
- case VRC4173_CARDU1_PCI_CLOCK:
- set_cmusrst(CARD1RST);
- vrc4173_cmuclkmsk |= MSKCARD1;
- break;
- case VRC4173_CARDU2_PCI_CLOCK:
- set_cmusrst(CARD2RST);
- vrc4173_cmuclkmsk |= MSKCARD2;
- break;
- case VRC4173_AC97U_PCI_CLOCK:
- set_cmusrst(AC97RST);
- vrc4173_cmuclkmsk |= MSKAC97;
- break;
- case VRC4173_USBU_48MHz_CLOCK:
- set_cmusrst(USBRST);
- vrc4173_cmuclkmsk |= MSK48MUSB;
- break;
- case VRC4173_EXT_48MHz_CLOCK:
- if (vrc4173_cmuclkmsk & MSK48MOSC)
- vrc4173_cmuclkmsk |= MSK48MPIN;
- else
- printk(KERN_WARNING
- "vrc4173_supply_clock: "
- "Please supply VRC4173_48MHz_CLOCK first "
- "rather than VRC4173_EXT_48MHz_CLOCK.\n");
- break;
- case VRC4173_48MHz_CLOCK:
- vrc4173_cmuclkmsk |= MSK48MOSC;
- break;
- default:
- printk(KERN_WARNING
- "vrc4173_supply_clock: Invalid CLOCK value %u\n", clock);
- break;
- }
-
- vrc4173_outw(vrc4173_cmuclkmsk, VRC4173_CMUCLKMSK);
-
- switch (clock) {
- case VRC4173_USBU_PCI_CLOCK:
- case VRC4173_USBU_48MHz_CLOCK:
- clear_cmusrst(USBRST);
- break;
- case VRC4173_CARDU1_PCI_CLOCK:
- clear_cmusrst(CARD1RST);
- break;
- case VRC4173_CARDU2_PCI_CLOCK:
- clear_cmusrst(CARD2RST);
- break;
- case VRC4173_AC97U_PCI_CLOCK:
- clear_cmusrst(AC97RST);
- break;
- default:
- break;
- }
-
- spin_unlock_irq(&vrc4173_cmu_lock);
- }
-}
-
-EXPORT_SYMBOL(vrc4173_supply_clock);
-
-void vrc4173_mask_clock(vrc4173_clock_t clock)
-{
- if (vrc4173_initialized) {
- spin_lock_irq(&vrc4173_cmu_lock);
-
- switch (clock) {
- case VRC4173_PIU_CLOCK:
- vrc4173_cmuclkmsk &= ~MSKPIU;
- break;
- case VRC4173_KIU_CLOCK:
- vrc4173_cmuclkmsk &= ~MSKKIU;
- break;
- case VRC4173_AIU_CLOCK:
- vrc4173_cmuclkmsk &= ~MSKAIU;
- break;
- case VRC4173_PS2_CH1_CLOCK:
- vrc4173_cmuclkmsk &= ~MSKPS2CH1;
- break;
- case VRC4173_PS2_CH2_CLOCK:
- vrc4173_cmuclkmsk &= ~MSKPS2CH2;
- break;
- case VRC4173_USBU_PCI_CLOCK:
- set_cmusrst(USBRST);
- vrc4173_cmuclkmsk &= ~MSKUSB;
- break;
- case VRC4173_CARDU1_PCI_CLOCK:
- set_cmusrst(CARD1RST);
- vrc4173_cmuclkmsk &= ~MSKCARD1;
- break;
- case VRC4173_CARDU2_PCI_CLOCK:
- set_cmusrst(CARD2RST);
- vrc4173_cmuclkmsk &= ~MSKCARD2;
- break;
- case VRC4173_AC97U_PCI_CLOCK:
- set_cmusrst(AC97RST);
- vrc4173_cmuclkmsk &= ~MSKAC97;
- break;
- case VRC4173_USBU_48MHz_CLOCK:
- set_cmusrst(USBRST);
- vrc4173_cmuclkmsk &= ~MSK48MUSB;
- break;
- case VRC4173_EXT_48MHz_CLOCK:
- vrc4173_cmuclkmsk &= ~MSK48MPIN;
- break;
- case VRC4173_48MHz_CLOCK:
- vrc4173_cmuclkmsk &= ~MSK48MOSC;
- break;
- default:
- printk(KERN_WARNING "vrc4173_mask_clock: Invalid CLOCK value %u\n", clock);
- break;
- }
-
- vrc4173_outw(vrc4173_cmuclkmsk, VRC4173_CMUCLKMSK);
-
- switch (clock) {
- case VRC4173_USBU_PCI_CLOCK:
- case VRC4173_USBU_48MHz_CLOCK:
- clear_cmusrst(USBRST);
- break;
- case VRC4173_CARDU1_PCI_CLOCK:
- clear_cmusrst(CARD1RST);
- break;
- case VRC4173_CARDU2_PCI_CLOCK:
- clear_cmusrst(CARD2RST);
- break;
- case VRC4173_AC97U_PCI_CLOCK:
- clear_cmusrst(AC97RST);
- break;
- default:
- break;
- }
-
- spin_unlock_irq(&vrc4173_cmu_lock);
- }
-}
-
-EXPORT_SYMBOL(vrc4173_mask_clock);
-
-static inline void vrc4173_cmu_init(void)
-{
- vrc4173_cmuclkmsk = vrc4173_inw(VRC4173_CMUCLKMSK);
-
- spin_lock_init(&vrc4173_cmu_lock);
-}
-
-void vrc4173_select_function(vrc4173_function_t function)
-{
- if (vrc4173_initialized) {
- spin_lock_irq(&vrc4173_giu_lock);
-
- switch(function) {
- case PS2_CHANNEL1:
- vrc4173_selectreg |= SEL2;
- break;
- case PS2_CHANNEL2:
- vrc4173_selectreg |= SEL1;
- break;
- case TOUCHPANEL:
- vrc4173_selectreg &= SEL2 | SEL1 | SEL0;
- break;
- case KEYBOARD_8SCANLINES:
- vrc4173_selectreg &= SEL3 | SEL2 | SEL1;
- break;
- case KEYBOARD_10SCANLINES:
- vrc4173_selectreg &= SEL3 | SEL2;
- break;
- case KEYBOARD_12SCANLINES:
- vrc4173_selectreg &= SEL3;
- break;
- case GPIO_0_15PINS:
- vrc4173_selectreg |= SEL0;
- break;
- case GPIO_16_20PINS:
- vrc4173_selectreg |= SEL3;
- break;
- }
-
- vrc4173_outw(vrc4173_selectreg, VRC4173_SELECTREG);
-
- spin_unlock_irq(&vrc4173_giu_lock);
- }
-}
-
-EXPORT_SYMBOL(vrc4173_select_function);
-
-static inline void vrc4173_giu_init(void)
-{
- vrc4173_selectreg = vrc4173_inw(VRC4173_SELECTREG);
-
- spin_lock_init(&vrc4173_giu_lock);
-}
-
-void vrc4173_enable_piuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_PIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MPIUINTREG);
- val |= mask;
- vrc4173_outw(val, VRC4173_MPIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_enable_piuint);
-
-void vrc4173_disable_piuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_PIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MPIUINTREG);
- val &= ~mask;
- vrc4173_outw(val, VRC4173_MPIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_disable_piuint);
-
-void vrc4173_enable_aiuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_AIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MAIUINTREG);
- val |= mask;
- vrc4173_outw(val, VRC4173_MAIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_enable_aiuint);
-
-void vrc4173_disable_aiuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_AIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MAIUINTREG);
- val &= ~mask;
- vrc4173_outw(val, VRC4173_MAIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_disable_aiuint);
-
-void vrc4173_enable_kiuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_KIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MKIUINTREG);
- val |= mask;
- vrc4173_outw(val, VRC4173_MKIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_enable_kiuint);
-
-void vrc4173_disable_kiuint(uint16_t mask)
-{
- struct irq_desc *desc = irq_desc + VRC4173_KIU_IRQ;
- unsigned long flags;
- uint16_t val;
-
- spin_lock_irqsave(&desc->lock, flags);
- val = vrc4173_inw(VRC4173_MKIUINTREG);
- val &= ~mask;
- vrc4173_outw(val, VRC4173_MKIUINTREG);
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-EXPORT_SYMBOL(vrc4173_disable_kiuint);
-
-static void enable_vrc4173_irq(unsigned int irq)
-{
- uint16_t val;
-
- val = vrc4173_inw(VRC4173_MSYSINT1REG);
- val |= (uint16_t)1 << (irq - VRC4173_IRQ_BASE);
- vrc4173_outw(val, VRC4173_MSYSINT1REG);
-}
-
-static void disable_vrc4173_irq(unsigned int irq)
-{
- uint16_t val;
-
- val = vrc4173_inw(VRC4173_MSYSINT1REG);
- val &= ~((uint16_t)1 << (irq - VRC4173_IRQ_BASE));
- vrc4173_outw(val, VRC4173_MSYSINT1REG);
-}
-
-static unsigned int startup_vrc4173_irq(unsigned int irq)
-{
- enable_vrc4173_irq(irq);
- return 0; /* never anything pending */
-}
-
-#define shutdown_vrc4173_irq disable_vrc4173_irq
-#define ack_vrc4173_irq disable_vrc4173_irq
-
-static void end_vrc4173_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
- enable_vrc4173_irq(irq);
-}
-
-static struct irq_chip vrc4173_irq_type = {
- .typename = "VRC4173",
- .startup = startup_vrc4173_irq,
- .shutdown = shutdown_vrc4173_irq,
- .enable = enable_vrc4173_irq,
- .disable = disable_vrc4173_irq,
- .ack = ack_vrc4173_irq,
- .end = end_vrc4173_irq,
-};
-
-static int vrc4173_get_irq_number(int irq)
-{
- uint16_t status, mask;
- int i;
-
- status = vrc4173_inw(VRC4173_SYSINT1REG);
- mask = vrc4173_inw(VRC4173_MSYSINT1REG);
-
- status &= mask;
- if (status) {
- for (i = 0; i < 16; i++)
- if (status & (0x0001 << i))
- return VRC4173_IRQ(i);
- }
-
- return -EINVAL;
-}
-
-static inline int vrc4173_icu_init(int cascade_irq)
-{
- int i;
-
- if (cascade_irq < GIU_IRQ(0) || cascade_irq > GIU_IRQ(15))
- return -EINVAL;
-
- vrc4173_outw(0, VRC4173_MSYSINT1REG);
-
- vr41xx_set_irq_trigger(GIU_IRQ_TO_PIN(cascade_irq), TRIGGER_LEVEL, SIGNAL_THROUGH);
- vr41xx_set_irq_level(GIU_IRQ_TO_PIN(cascade_irq), LEVEL_LOW);
-
- for (i = VRC4173_IRQ_BASE; i <= VRC4173_IRQ_LAST; i++)
- irq_desc[i].chip = &vrc4173_irq_type;
-
- return 0;
-}
-
-static int __devinit vrc4173_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- unsigned long start, flags;
- int err;
-
- err = pci_enable_device(dev);
- if (err < 0) {
- printk(KERN_ERR "vrc4173: Failed to enable PCI device, aborting\n");
- return err;
- }
-
- pci_set_master(dev);
-
- start = pci_resource_start(dev, 0);
- if (start == 0) {
- printk(KERN_ERR "vrc4173:No such PCI I/O resource, aborting\n");
- return -ENXIO;
- }
-
- flags = pci_resource_flags(dev, 0);
- if ((flags & IORESOURCE_IO) == 0) {
- printk(KERN_ERR "vrc4173: No such PCI I/O resource, aborting\n");
- return -ENXIO;
- }
-
- err = pci_request_regions(dev, "NEC VRC4173");
- if (err < 0) {
- printk(KERN_ERR "vrc4173: PCI resources are busy, aborting\n");
- return err;
- }
-
- set_vrc4173_io_offset(start);
-
- vrc4173_cmu_init();
- vrc4173_giu_init();
-
- err = vrc4173_icu_init(dev->irq);
- if (err < 0) {
- printk(KERN_ERR "vrc4173: Invalid IRQ %d, aborting\n", dev->irq);
- return err;
- }
-
- err = vr41xx_cascade_irq(dev->irq, vrc4173_get_irq_number);
- if (err < 0) {
- printk(KERN_ERR "vrc4173: IRQ resource %d is busy, aborting\n", dev->irq);
- return err;
- }
-
- printk(KERN_INFO
- "NEC VRC4173 at 0x%#08lx, IRQ is cascaded to %d\n", start, dev->irq);
-
- return 0;
-}
-
-static void vrc4173_remove(struct pci_dev *dev)
-{
- free_irq(dev->irq, NULL);
-
- pci_release_regions(dev);
-}
-
-static struct pci_driver vrc4173_driver = {
- .name = "NEC VRC4173",
- .probe = vrc4173_probe,
- .remove = vrc4173_remove,
- .id_table = vrc4173_id_table,
-};
-
-static int __devinit vrc4173_init(void)
-{
- int err;
-
- err = pci_register_driver(&vrc4173_driver);
- if (err < 0)
- return err;
-
- vrc4173_initialized = 1;
-
- return 0;
-}
-
-static void __devexit vrc4173_exit(void)
-{
- vrc4173_initialized = 0;
-
- pci_unregister_driver(&vrc4173_driver);
-}
-
-module_init(vrc4173_init);
-module_exit(vrc4173_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 17:34:29 +0000