--- /dev/null
+Index: linux-3.7.1/arch/mips/lantiq/xway/timer.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-3.7.1/arch/mips/lantiq/xway/timer.c 2012-12-18 20:47:56.625037132 +0100
+@@ -0,0 +1,841 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/types.h>
++#include <linux/fs.h>
++#include <linux/miscdevice.h>
++#include <linux/init.h>
++#include <linux/uaccess.h>
++#include <linux/unistd.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/sched.h>
++
++#include <asm/irq.h>
++#include <asm/div64.h>
++#include "../clk.h"
++
++#include <lantiq_soc.h>
++#include <lantiq_irq.h>
++#include <lantiq_timer.h>
++
++#define MAX_NUM_OF_32BIT_TIMER_BLOCKS 6
++
++#ifdef TIMER1A
++#define FIRST_TIMER TIMER1A
++#else
++#define FIRST_TIMER 2
++#endif
++
++/*
++ * GPTC divider is set or not.
++ */
++#define GPTU_CLC_RMC_IS_SET 0
++
++/*
++ * Timer Interrupt (IRQ)
++ */
++/* Must be adjusted when ICU driver is available */
++#define TIMER_INTERRUPT (INT_NUM_IM3_IRL0 + 22)
++
++/*
++ * Bits Operation
++ */
++#define GET_BITS(x, msb, lsb) \
++ (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
++#define SET_BITS(x, msb, lsb, value) \
++ (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | \
++ (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
++
++/*
++ * GPTU Register Mapping
++ */
++#define LQ_GPTU (KSEG1 + 0x1E100A00)
++#define LQ_GPTU_CLC ((volatile u32 *)(LQ_GPTU + 0x0000))
++#define LQ_GPTU_ID ((volatile u32 *)(LQ_GPTU + 0x0008))
++#define LQ_GPTU_CON(n, X) ((volatile u32 *)(LQ_GPTU + 0x0010 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
++#define LQ_GPTU_RUN(n, X) ((volatile u32 *)(LQ_GPTU + 0x0018 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
++#define LQ_GPTU_RELOAD(n, X) ((volatile u32 *)(LQ_GPTU + 0x0020 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
++#define LQ_GPTU_COUNT(n, X) ((volatile u32 *)(LQ_GPTU + 0x0028 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
++#define LQ_GPTU_IRNEN ((volatile u32 *)(LQ_GPTU + 0x00F4))
++#define LQ_GPTU_IRNICR ((volatile u32 *)(LQ_GPTU + 0x00F8))
++#define LQ_GPTU_IRNCR ((volatile u32 *)(LQ_GPTU + 0x00FC))
++
++/*
++ * Clock Control Register
++ */
++#define GPTU_CLC_SMC GET_BITS(*LQ_GPTU_CLC, 23, 16)
++#define GPTU_CLC_RMC GET_BITS(*LQ_GPTU_CLC, 15, 8)
++#define GPTU_CLC_FSOE (*LQ_GPTU_CLC & (1 << 5))
++#define GPTU_CLC_EDIS (*LQ_GPTU_CLC & (1 << 3))
++#define GPTU_CLC_SPEN (*LQ_GPTU_CLC & (1 << 2))
++#define GPTU_CLC_DISS (*LQ_GPTU_CLC & (1 << 1))
++#define GPTU_CLC_DISR (*LQ_GPTU_CLC & (1 << 0))
++
++#define GPTU_CLC_SMC_SET(value) SET_BITS(0, 23, 16, (value))
++#define GPTU_CLC_RMC_SET(value) SET_BITS(0, 15, 8, (value))
++#define GPTU_CLC_FSOE_SET(value) ((value) ? (1 << 5) : 0)
++#define GPTU_CLC_SBWE_SET(value) ((value) ? (1 << 4) : 0)
++#define GPTU_CLC_EDIS_SET(value) ((value) ? (1 << 3) : 0)
++#define GPTU_CLC_SPEN_SET(value) ((value) ? (1 << 2) : 0)
++#define GPTU_CLC_DISR_SET(value) ((value) ? (1 << 0) : 0)
++
++/*
++ * ID Register
++ */
++#define GPTU_ID_ID GET_BITS(*LQ_GPTU_ID, 15, 8)
++#define GPTU_ID_CFG GET_BITS(*LQ_GPTU_ID, 7, 5)
++#define GPTU_ID_REV GET_BITS(*LQ_GPTU_ID, 4, 0)
++
++/*
++ * Control Register of Timer/Counter nX
++ * n is the index of block (1 based index)
++ * X is either A or B
++ */
++#define GPTU_CON_SRC_EG(n, X) (*LQ_GPTU_CON(n, X) & (1 << 10))
++#define GPTU_CON_SRC_EXT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 9))
++#define GPTU_CON_SYNC(n, X) (*LQ_GPTU_CON(n, X) & (1 << 8))
++#define GPTU_CON_EDGE(n, X) GET_BITS(*LQ_GPTU_CON(n, X), 7, 6)
++#define GPTU_CON_INV(n, X) (*LQ_GPTU_CON(n, X) & (1 << 5))
++#define GPTU_CON_EXT(n, X) (*LQ_GPTU_CON(n, A) & (1 << 4)) /* Timer/Counter B does not have this bit */
++#define GPTU_CON_STP(n, X) (*LQ_GPTU_CON(n, X) & (1 << 3))
++#define GPTU_CON_CNT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 2))
++#define GPTU_CON_DIR(n, X) (*LQ_GPTU_CON(n, X) & (1 << 1))
++#define GPTU_CON_EN(n, X) (*LQ_GPTU_CON(n, X) & (1 << 0))
++
++#define GPTU_CON_SRC_EG_SET(value) ((value) ? 0 : (1 << 10))
++#define GPTU_CON_SRC_EXT_SET(value) ((value) ? (1 << 9) : 0)
++#define GPTU_CON_SYNC_SET(value) ((value) ? (1 << 8) : 0)
++#define GPTU_CON_EDGE_SET(value) SET_BITS(0, 7, 6, (value))
++#define GPTU_CON_INV_SET(value) ((value) ? (1 << 5) : 0)
++#define GPTU_CON_EXT_SET(value) ((value) ? (1 << 4) : 0)
++#define GPTU_CON_STP_SET(value) ((value) ? (1 << 3) : 0)
++#define GPTU_CON_CNT_SET(value) ((value) ? (1 << 2) : 0)
++#define GPTU_CON_DIR_SET(value) ((value) ? (1 << 1) : 0)
++
++#define GPTU_RUN_RL_SET(value) ((value) ? (1 << 2) : 0)
++#define GPTU_RUN_CEN_SET(value) ((value) ? (1 << 1) : 0)
++#define GPTU_RUN_SEN_SET(value) ((value) ? (1 << 0) : 0)
++
++#define GPTU_IRNEN_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
++#define GPTU_IRNCR_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
++
++#define TIMER_FLAG_MASK_SIZE(x) (x & 0x0001)
++#define TIMER_FLAG_MASK_TYPE(x) (x & 0x0002)
++#define TIMER_FLAG_MASK_STOP(x) (x & 0x0004)
++#define TIMER_FLAG_MASK_DIR(x) (x & 0x0008)
++#define TIMER_FLAG_NONE_EDGE 0x0000
++#define TIMER_FLAG_MASK_EDGE(x) (x & 0x0030)
++#define TIMER_FLAG_REAL 0x0000
++#define TIMER_FLAG_INVERT 0x0040
++#define TIMER_FLAG_MASK_INVERT(x) (x & 0x0040)
++#define TIMER_FLAG_MASK_TRIGGER(x) (x & 0x0070)
++#define TIMER_FLAG_MASK_SYNC(x) (x & 0x0080)
++#define TIMER_FLAG_CALLBACK_IN_HB 0x0200
++#define TIMER_FLAG_MASK_HANDLE(x) (x & 0x0300)
++#define TIMER_FLAG_MASK_SRC(x) (x & 0x1000)
++
++struct timer_dev_timer {
++ unsigned int f_irq_on;
++ unsigned int irq;
++ unsigned int flag;
++ unsigned long arg1;
++ unsigned long arg2;
++};
++
++struct timer_dev {
++ struct mutex gptu_mutex;
++ unsigned int number_of_timers;
++ unsigned int occupation;
++ unsigned int f_gptu_on;
++ struct timer_dev_timer timer[MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2];
++};
++
++
++unsigned int ltq_get_fpi_bus_clock(int fpi) {
++ struct clk *clk = clk_get_fpi();
++ return clk_get_rate(clk);
++}
++
++
++static long gptu_ioctl(struct file *, unsigned int, unsigned long);
++static int gptu_open(struct inode *, struct file *);
++static int gptu_release(struct inode *, struct file *);
++
++static struct file_operations gptu_fops = {
++ .owner = THIS_MODULE,
++ .unlocked_ioctl = gptu_ioctl,
++ .open = gptu_open,
++ .release = gptu_release
++};
++
++static struct miscdevice gptu_miscdev = {
++ .minor = MISC_DYNAMIC_MINOR,
++ .name = "gptu",
++ .fops = &gptu_fops,
++};
++
++static struct timer_dev timer_dev;
++
++static irqreturn_t timer_irq_handler(int irq, void *p)
++{
++ unsigned int timer;
++ unsigned int flag;
++ struct timer_dev_timer *dev_timer = (struct timer_dev_timer *)p;
++
++ timer = irq - TIMER_INTERRUPT;
++ if (timer < timer_dev.number_of_timers
++ && dev_timer == &timer_dev.timer[timer]) {
++ /* Clear interrupt. */
++ ltq_w32(1 << timer, LQ_GPTU_IRNCR);
++
++ /* Call user hanler or signal. */
++ flag = dev_timer->flag;
++ if (!(timer & 0x01)
++ || TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
++ /* 16-bit timer or timer A of 32-bit timer */
++ switch (TIMER_FLAG_MASK_HANDLE(flag)) {
++ case TIMER_FLAG_CALLBACK_IN_IRQ:
++ case TIMER_FLAG_CALLBACK_IN_HB:
++ if (dev_timer->arg1)
++ (*(timer_callback)dev_timer->arg1)(dev_timer->arg2);
++ break;
++ case TIMER_FLAG_SIGNAL:
++ send_sig((int)dev_timer->arg2, (struct task_struct *)dev_timer->arg1, 0);
++ break;
++ }
++ }
++ }
++ return IRQ_HANDLED;
++}
++
++static inline void lq_enable_gptu(void)
++{
++ struct clk *clk = clk_get_sys("ltq_gptu", NULL);
++ clk_enable(clk);
++
++ //ltq_pmu_enable(PMU_GPT);
++
++ /* Set divider as 1, disable write protection for SPEN, enable module. */
++ *LQ_GPTU_CLC =
++ GPTU_CLC_SMC_SET(0x00) |
++ GPTU_CLC_RMC_SET(0x01) |
++ GPTU_CLC_FSOE_SET(0) |
++ GPTU_CLC_SBWE_SET(1) |
++ GPTU_CLC_EDIS_SET(0) |
++ GPTU_CLC_SPEN_SET(0) |
++ GPTU_CLC_DISR_SET(0);
++}
++
++static inline void lq_disable_gptu(void)
++{
++ struct clk *clk = clk_get_sys("ltq_gptu", NULL);
++ ltq_w32(0x00, LQ_GPTU_IRNEN);
++ ltq_w32(0xfff, LQ_GPTU_IRNCR);
++
++ /* Set divider as 0, enable write protection for SPEN, disable module. */
++ *LQ_GPTU_CLC =
++ GPTU_CLC_SMC_SET(0x00) |
++ GPTU_CLC_RMC_SET(0x00) |
++ GPTU_CLC_FSOE_SET(0) |
++ GPTU_CLC_SBWE_SET(0) |
++ GPTU_CLC_EDIS_SET(0) |
++ GPTU_CLC_SPEN_SET(0) |
++ GPTU_CLC_DISR_SET(1);
++
++ clk_enable(clk);
++}
++
++int lq_request_timer(unsigned int timer, unsigned int flag,
++ unsigned long value, unsigned long arg1, unsigned long arg2)
++{
++ int ret = 0;
++ unsigned int con_reg, irnen_reg;
++ int n, X;
++
++ if (timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ printk(KERN_INFO "request_timer(%d, 0x%08X, %lu)...",
++ timer, flag, value);
++
++ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT)
++ value &= 0xFFFF;
++ else
++ timer &= ~0x01;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ /*
++ * Allocate timer.
++ */
++ if (timer < FIRST_TIMER) {
++ unsigned int mask;
++ unsigned int shift;
++ /* This takes care of TIMER1B which is the only choice for Voice TAPI system */
++ unsigned int offset = TIMER2A;
++
++ /*
++ * Pick up a free timer.
++ */
++ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
++ mask = 1 << offset;
++ shift = 1;
++ } else {
++ mask = 3 << offset;
++ shift = 2;
++ }
++ for (timer = offset;
++ timer < offset + timer_dev.number_of_timers;
++ timer += shift, mask <<= shift)
++ if (!(timer_dev.occupation & mask)) {
++ timer_dev.occupation |= mask;
++ break;
++ }
++ if (timer >= offset + timer_dev.number_of_timers) {
++ printk("failed![%d]\n", __LINE__);
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ } else
++ ret = timer;
++ } else {
++ register unsigned int mask;
++
++ /*
++ * Check if the requested timer is free.
++ */
++ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if ((timer_dev.occupation & mask)) {
++ printk("failed![%d] mask %#x, timer_dev.occupation %#x\n",
++ __LINE__, mask, timer_dev.occupation);
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EBUSY;
++ } else {
++ timer_dev.occupation |= mask;
++ ret = 0;
++ }
++ }
++
++ /*
++ * Prepare control register value.
++ */
++ switch (TIMER_FLAG_MASK_EDGE(flag)) {
++ default:
++ case TIMER_FLAG_NONE_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x00);
++ break;
++ case TIMER_FLAG_RISE_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x01);
++ break;
++ case TIMER_FLAG_FALL_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x02);
++ break;
++ case TIMER_FLAG_ANY_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x03);
++ break;
++ }
++ if (TIMER_FLAG_MASK_TYPE(flag) == TIMER_FLAG_TIMER)
++ con_reg |=
++ TIMER_FLAG_MASK_SRC(flag) ==
++ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) :
++ GPTU_CON_SRC_EXT_SET(0);
++ else
++ con_reg |=
++ TIMER_FLAG_MASK_SRC(flag) ==
++ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) :
++ GPTU_CON_SRC_EG_SET(0);
++ con_reg |=
++ TIMER_FLAG_MASK_SYNC(flag) ==
++ TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) :
++ GPTU_CON_SYNC_SET(1);
++ con_reg |=
++ TIMER_FLAG_MASK_INVERT(flag) ==
++ TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
++ con_reg |=
++ TIMER_FLAG_MASK_SIZE(flag) ==
++ TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) :
++ GPTU_CON_EXT_SET(1);
++ con_reg |=
++ TIMER_FLAG_MASK_STOP(flag) ==
++ TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
++ con_reg |=
++ TIMER_FLAG_MASK_TYPE(flag) ==
++ TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) :
++ GPTU_CON_CNT_SET(1);
++ con_reg |=
++ TIMER_FLAG_MASK_DIR(flag) ==
++ TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
++
++ /*
++ * Fill up running data.
++ */
++ timer_dev.timer[timer - FIRST_TIMER].flag = flag;
++ timer_dev.timer[timer - FIRST_TIMER].arg1 = arg1;
++ timer_dev.timer[timer - FIRST_TIMER].arg2 = arg2;
++ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
++ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flag;
++
++ /*
++ * Enable GPTU module.
++ */
++ if (!timer_dev.f_gptu_on) {
++ lq_enable_gptu();
++ timer_dev.f_gptu_on = 1;
++ }
++
++ /*
++ * Enable IRQ.
++ */
++ if (TIMER_FLAG_MASK_HANDLE(flag) != TIMER_FLAG_NO_HANDLE) {
++ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL)
++ timer_dev.timer[timer - FIRST_TIMER].arg1 =
++ (unsigned long) find_task_by_vpid((int) arg1);
++
++ irnen_reg = 1 << (timer - FIRST_TIMER);
++
++ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL
++ || (TIMER_FLAG_MASK_HANDLE(flag) ==
++ TIMER_FLAG_CALLBACK_IN_IRQ
++ && timer_dev.timer[timer - FIRST_TIMER].arg1)) {
++ enable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
++ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 1;
++ }
++ } else
++ irnen_reg = 0;
++
++ /*
++ * Write config register, reload value and enable interrupt.
++ */
++ n = timer >> 1;
++ X = timer & 0x01;
++ *LQ_GPTU_CON(n, X) = con_reg;
++ *LQ_GPTU_RELOAD(n, X) = value;
++ /* printk("reload value = %d\n", (u32)value); */
++ *LQ_GPTU_IRNEN |= irnen_reg;
++
++ mutex_unlock(&timer_dev.gptu_mutex);
++ printk("successful!\n");
++ return ret;
++}
++EXPORT_SYMBOL(lq_request_timer);
++
++int lq_free_timer(unsigned int timer)
++{
++ unsigned int flag;
++ unsigned int mask;
++ int n, X;
++
++ if (!timer_dev.f_gptu_on)
++ return -EINVAL;
++
++ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
++ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
++ timer &= ~0x01;
++
++ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if (((timer_dev.occupation & mask) ^ mask)) {
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ }
++
++ n = timer >> 1;
++ X = timer & 0x01;
++
++ if (GPTU_CON_EN(n, X))
++ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
++
++ *LQ_GPTU_IRNEN &= ~GPTU_IRNEN_TC_SET(n, X, 1);
++ *LQ_GPTU_IRNCR |= GPTU_IRNCR_TC_SET(n, X, 1);
++
++ if (timer_dev.timer[timer - FIRST_TIMER].f_irq_on) {
++ disable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
++ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 0;
++ }
++
++ timer_dev.occupation &= ~mask;
++ if (!timer_dev.occupation && timer_dev.f_gptu_on) {
++ lq_disable_gptu();
++ timer_dev.f_gptu_on = 0;
++ }
++
++ mutex_unlock(&timer_dev.gptu_mutex);
++
++ return 0;
++}
++EXPORT_SYMBOL(lq_free_timer);
++
++int lq_start_timer(unsigned int timer, int is_resume)
++{
++ unsigned int flag;
++ unsigned int mask;
++ int n, X;
++
++ if (!timer_dev.f_gptu_on)
++ return -EINVAL;
++
++ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
++ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
++ timer &= ~0x01;
++
++ mask = (TIMER_FLAG_MASK_SIZE(flag) ==
++ TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if (((timer_dev.occupation & mask) ^ mask)) {
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ }
++
++ n = timer >> 1;
++ X = timer & 0x01;
++
++ *LQ_GPTU_RUN(n, X) = GPTU_RUN_RL_SET(!is_resume) | GPTU_RUN_SEN_SET(1);
++
++
++ mutex_unlock(&timer_dev.gptu_mutex);
++
++ return 0;
++}
++EXPORT_SYMBOL(lq_start_timer);
++
++int lq_stop_timer(unsigned int timer)
++{
++ unsigned int flag;
++ unsigned int mask;
++ int n, X;
++
++ if (!timer_dev.f_gptu_on)
++ return -EINVAL;
++
++ if (timer < FIRST_TIMER
++ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
++ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
++ timer &= ~0x01;
++
++ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if (((timer_dev.occupation & mask) ^ mask)) {
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ }
++
++ n = timer >> 1;
++ X = timer & 0x01;
++
++ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
++
++ mutex_unlock(&timer_dev.gptu_mutex);
++
++ return 0;
++}
++EXPORT_SYMBOL(lq_stop_timer);
++
++int lq_reset_counter_flags(u32 timer, u32 flags)
++{
++ unsigned int oflag;
++ unsigned int mask, con_reg;
++ int n, X;
++
++ if (!timer_dev.f_gptu_on)
++ return -EINVAL;
++
++ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ oflag = timer_dev.timer[timer - FIRST_TIMER].flag;
++ if (TIMER_FLAG_MASK_SIZE(oflag) != TIMER_FLAG_16BIT)
++ timer &= ~0x01;
++
++ mask = (TIMER_FLAG_MASK_SIZE(oflag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if (((timer_dev.occupation & mask) ^ mask)) {
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ }
++
++ switch (TIMER_FLAG_MASK_EDGE(flags)) {
++ default:
++ case TIMER_FLAG_NONE_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x00);
++ break;
++ case TIMER_FLAG_RISE_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x01);
++ break;
++ case TIMER_FLAG_FALL_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x02);
++ break;
++ case TIMER_FLAG_ANY_EDGE:
++ con_reg = GPTU_CON_EDGE_SET(0x03);
++ break;
++ }
++ if (TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER)
++ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) : GPTU_CON_SRC_EXT_SET(0);
++ else
++ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) : GPTU_CON_SRC_EG_SET(0);
++ con_reg |= TIMER_FLAG_MASK_SYNC(flags) == TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) : GPTU_CON_SYNC_SET(1);
++ con_reg |= TIMER_FLAG_MASK_INVERT(flags) == TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
++ con_reg |= TIMER_FLAG_MASK_SIZE(flags) == TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) : GPTU_CON_EXT_SET(1);
++ con_reg |= TIMER_FLAG_MASK_STOP(flags) == TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
++ con_reg |= TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) : GPTU_CON_CNT_SET(1);
++ con_reg |= TIMER_FLAG_MASK_DIR(flags) == TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
++
++ timer_dev.timer[timer - FIRST_TIMER].flag = flags;
++ if (TIMER_FLAG_MASK_SIZE(flags) != TIMER_FLAG_16BIT)
++ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flags;
++
++ n = timer >> 1;
++ X = timer & 0x01;
++
++ *LQ_GPTU_CON(n, X) = con_reg;
++ smp_wmb();
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return 0;
++}
++EXPORT_SYMBOL(lq_reset_counter_flags);
++
++int lq_get_count_value(unsigned int timer, unsigned long *value)
++{
++ unsigned int flag;
++ unsigned int mask;
++ int n, X;
++
++ if (!timer_dev.f_gptu_on)
++ return -EINVAL;
++
++ if (timer < FIRST_TIMER
++ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
++ return -EINVAL;
++
++ mutex_lock(&timer_dev.gptu_mutex);
++
++ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
++ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
++ timer &= ~0x01;
++
++ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
++ if (((timer_dev.occupation & mask) ^ mask)) {
++ mutex_unlock(&timer_dev.gptu_mutex);
++ return -EINVAL;
++ }
++
++ n = timer >> 1;
++ X = timer & 0x01;
++
++ *value = *LQ_GPTU_COUNT(n, X);
++
++
++ mutex_unlock(&timer_dev.gptu_mutex);
++
++ return 0;
++}
++EXPORT_SYMBOL(lq_get_count_value);
++
++u32 lq_cal_divider(unsigned long freq)
++{
++ u64 module_freq, fpi = ltq_get_fpi_bus_clock(2);
++ u32 clock_divider = 1;
++ module_freq = fpi * 1000;
++ do_div(module_freq, clock_divider * freq);
++ return module_freq;
++}
++EXPORT_SYMBOL(lq_cal_divider);
++
++int lq_set_timer(unsigned int timer, unsigned int freq, int is_cyclic,
++ int is_ext_src, unsigned int handle_flag, unsigned long arg1,
++ unsigned long arg2)
++{
++ unsigned long divider;
++ unsigned int flag;
++
++ divider = lq_cal_divider(freq);
++ if (divider == 0)
++ return -EINVAL;
++ flag = ((divider & ~0xFFFF) ? TIMER_FLAG_32BIT : TIMER_FLAG_16BIT)
++ | (is_cyclic ? TIMER_FLAG_CYCLIC : TIMER_FLAG_ONCE)
++ | (is_ext_src ? TIMER_FLAG_EXT_SRC : TIMER_FLAG_INT_SRC)
++ | TIMER_FLAG_TIMER | TIMER_FLAG_DOWN
++ | TIMER_FLAG_MASK_HANDLE(handle_flag);
++
++ printk(KERN_INFO "lq_set_timer(%d, %d), divider = %lu\n",
++ timer, freq, divider);
++ return lq_request_timer(timer, flag, divider, arg1, arg2);
++}
++EXPORT_SYMBOL(lq_set_timer);
++
++int lq_set_counter(unsigned int timer, unsigned int flag, u32 reload,
++ unsigned long arg1, unsigned long arg2)
++{
++ printk(KERN_INFO "lq_set_counter(%d, %#x, %d)\n", timer, flag, reload);
++ return lq_request_timer(timer, flag, reload, arg1, arg2);
++}
++EXPORT_SYMBOL(lq_set_counter);
++
++static long gptu_ioctl(struct file *file, unsigned int cmd,
++ unsigned long arg)
++{
++ int ret;
++ struct gptu_ioctl_param param;
++
++ if (!access_ok(VERIFY_READ, arg, sizeof(struct gptu_ioctl_param)))
++ return -EFAULT;
++ copy_from_user(¶m, (void *) arg, sizeof(param));
++
++ if ((((cmd == GPTU_REQUEST_TIMER || cmd == GPTU_SET_TIMER
++ || GPTU_SET_COUNTER) && param.timer < 2)
++ || cmd == GPTU_GET_COUNT_VALUE || cmd == GPTU_CALCULATE_DIVIDER)
++ && !access_ok(VERIFY_WRITE, arg,
++ sizeof(struct gptu_ioctl_param)))
++ return -EFAULT;
++
++ switch (cmd) {
++ case GPTU_REQUEST_TIMER:
++ ret = lq_request_timer(param.timer, param.flag, param.value,
++ (unsigned long) param.pid,
++ (unsigned long) param.sig);
++ if (ret > 0) {
++ copy_to_user(&((struct gptu_ioctl_param *) arg)->
++ timer, &ret, sizeof(&ret));
++ ret = 0;
++ }
++ break;
++ case GPTU_FREE_TIMER:
++ ret = lq_free_timer(param.timer);
++ break;
++ case GPTU_START_TIMER:
++ ret = lq_start_timer(param.timer, param.flag);
++ break;
++ case GPTU_STOP_TIMER:
++ ret = lq_stop_timer(param.timer);
++ break;
++ case GPTU_GET_COUNT_VALUE:
++ ret = lq_get_count_value(param.timer, ¶m.value);
++ if (!ret)
++ copy_to_user(&((struct gptu_ioctl_param *) arg)->
++ value, ¶m.value,
++ sizeof(param.value));
++ break;
++ case GPTU_CALCULATE_DIVIDER:
++ param.value = lq_cal_divider(param.value);
++ if (param.value == 0)
++ ret = -EINVAL;
++ else {
++ copy_to_user(&((struct gptu_ioctl_param *) arg)->
++ value, ¶m.value,
++ sizeof(param.value));
++ ret = 0;
++ }
++ break;
++ case GPTU_SET_TIMER:
++ ret = lq_set_timer(param.timer, param.value,
++ TIMER_FLAG_MASK_STOP(param.flag) !=
++ TIMER_FLAG_ONCE ? 1 : 0,
++ TIMER_FLAG_MASK_SRC(param.flag) ==
++ TIMER_FLAG_EXT_SRC ? 1 : 0,
++ TIMER_FLAG_MASK_HANDLE(param.flag) ==
++ TIMER_FLAG_SIGNAL ? TIMER_FLAG_SIGNAL :
++ TIMER_FLAG_NO_HANDLE,
++ (unsigned long) param.pid,
++ (unsigned long) param.sig);
++ if (ret > 0) {
++ copy_to_user(&((struct gptu_ioctl_param *) arg)->
++ timer, &ret, sizeof(&ret));
++ ret = 0;
++ }
++ break;
++ case GPTU_SET_COUNTER:
++ lq_set_counter(param.timer, param.flag, param.value, 0, 0);
++ if (ret > 0) {
++ copy_to_user(&((struct gptu_ioctl_param *) arg)->
++ timer, &ret, sizeof(&ret));
++ ret = 0;
++ }
++ break;
++ default:
++ ret = -ENOTTY;
++ }
++
++ return ret;
++}
++
++static int gptu_open(struct inode *inode, struct file *file)
++{
++ return 0;
++}
++
++static int gptu_release(struct inode *inode, struct file *file)
++{
++ return 0;
++}
++
++int __init lq_gptu_init(void)
++{
++ int ret;
++ unsigned int i;
++
++ ltq_w32(0, LQ_GPTU_IRNEN);
++ ltq_w32(0xfff, LQ_GPTU_IRNCR);
++
++ memset(&timer_dev, 0, sizeof(timer_dev));
++ mutex_init(&timer_dev.gptu_mutex);
++
++ lq_enable_gptu();
++ timer_dev.number_of_timers = GPTU_ID_CFG * 2;
++ lq_disable_gptu();
++ if (timer_dev.number_of_timers > MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2)
++ timer_dev.number_of_timers = MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2;
++ printk(KERN_INFO "gptu: totally %d 16-bit timers/counters\n", timer_dev.number_of_timers);
++
++ ret = misc_register(&gptu_miscdev);
++ if (ret) {
++ printk(KERN_ERR "gptu: can't misc_register, get error %d\n", -ret);
++ return ret;
++ } else {
++ printk(KERN_INFO "gptu: misc_register on minor %d\n", gptu_miscdev.minor);
++ }
++
++ for (i = 0; i < timer_dev.number_of_timers; i++) {
++ ret = request_irq(TIMER_INTERRUPT + i, timer_irq_handler, IRQF_TIMER, gptu_miscdev.name, &timer_dev.timer[i]);
++ if (ret) {
++ for (; i >= 0; i--)
++ free_irq(TIMER_INTERRUPT + i, &timer_dev.timer[i]);
++ misc_deregister(&gptu_miscdev);
++ printk(KERN_ERR "gptu: failed in requesting irq (%d), get error %d\n", i, -ret);
++ return ret;
++ } else {
++ timer_dev.timer[i].irq = TIMER_INTERRUPT + i;
++ disable_irq(timer_dev.timer[i].irq);
++ printk(KERN_INFO "gptu: succeeded to request irq %d\n", timer_dev.timer[i].irq);
++ }
++ }
++
++ return 0;
++}
++
++void __exit lq_gptu_exit(void)
++{
++ unsigned int i;
++
++ for (i = 0; i < timer_dev.number_of_timers; i++) {
++ if (timer_dev.timer[i].f_irq_on)
++ disable_irq(timer_dev.timer[i].irq);
++ free_irq(timer_dev.timer[i].irq, &timer_dev.timer[i]);
++ }
++ lq_disable_gptu();
++ misc_deregister(&gptu_miscdev);
++}
++
++module_init(lq_gptu_init);
++module_exit(lq_gptu_exit);
+Index: linux-3.7.1/arch/mips/include/asm/mach-lantiq/lantiq_timer.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-3.7.1/arch/mips/include/asm/mach-lantiq/lantiq_timer.h 2012-12-18 20:47:56.625037132 +0100
+@@ -0,0 +1,155 @@
++#ifndef __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
++#define __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
++
++
++/******************************************************************************
++ Copyright (c) 2002, Infineon Technologies. All rights reserved.
++
++ No Warranty
++ Because the program is licensed free of charge, there is no warranty for
++ the program, to the extent permitted by applicable law. Except when
++ otherwise stated in writing the copyright holders and/or other parties
++ provide the program "as is" without warranty of any kind, either
++ expressed or implied, including, but not limited to, the implied
++ warranties of merchantability and fitness for a particular purpose. The
++ entire risk as to the quality and performance of the program is with
++ you. should the program prove defective, you assume the cost of all
++ necessary servicing, repair or correction.
++
++ In no event unless required by applicable law or agreed to in writing
++ will any copyright holder, or any other party who may modify and/or
++ redistribute the program as permitted above, be liable to you for
++ damages, including any general, special, incidental or consequential
++ damages arising out of the use or inability to use the program
++ (including but not limited to loss of data or data being rendered
++ inaccurate or losses sustained by you or third parties or a failure of
++ the program to operate with any other programs), even if such holder or
++ other party has been advised of the possibility of such damages.
++******************************************************************************/
++
++
++/*
++ * ####################################
++ * Definition
++ * ####################################
++ */
++
++/*
++ * Available Timer/Counter Index
++ */
++#define TIMER(n, X) (n * 2 + (X ? 1 : 0))
++#define TIMER_ANY 0x00
++#define TIMER1A TIMER(1, 0)
++#define TIMER1B TIMER(1, 1)
++#define TIMER2A TIMER(2, 0)
++#define TIMER2B TIMER(2, 1)
++#define TIMER3A TIMER(3, 0)
++#define TIMER3B TIMER(3, 1)
++
++/*
++ * Flag of Timer/Counter
++ * These flags specify the way in which timer is configured.
++ */
++/* Bit size of timer/counter. */
++#define TIMER_FLAG_16BIT 0x0000
++#define TIMER_FLAG_32BIT 0x0001
++/* Switch between timer and counter. */
++#define TIMER_FLAG_TIMER 0x0000
++#define TIMER_FLAG_COUNTER 0x0002
++/* Stop or continue when overflowing/underflowing. */
++#define TIMER_FLAG_ONCE 0x0000
++#define TIMER_FLAG_CYCLIC 0x0004
++/* Count up or counter down. */
++#define TIMER_FLAG_UP 0x0000
++#define TIMER_FLAG_DOWN 0x0008
++/* Count on specific level or edge. */
++#define TIMER_FLAG_HIGH_LEVEL_SENSITIVE 0x0000
++#define TIMER_FLAG_LOW_LEVEL_SENSITIVE 0x0040
++#define TIMER_FLAG_RISE_EDGE 0x0010
++#define TIMER_FLAG_FALL_EDGE 0x0020
++#define TIMER_FLAG_ANY_EDGE 0x0030
++/* Signal is syncronous to module clock or not. */
++#define TIMER_FLAG_UNSYNC 0x0000
++#define TIMER_FLAG_SYNC 0x0080
++/* Different interrupt handle type. */
++#define TIMER_FLAG_NO_HANDLE 0x0000
++#if defined(__KERNEL__)
++ #define TIMER_FLAG_CALLBACK_IN_IRQ 0x0100
++#endif // defined(__KERNEL__)
++#define TIMER_FLAG_SIGNAL 0x0300
++/* Internal clock source or external clock source */
++#define TIMER_FLAG_INT_SRC 0x0000
++#define TIMER_FLAG_EXT_SRC 0x1000
++
++
++/*
++ * ioctl Command
++ */
++#define GPTU_REQUEST_TIMER 0x01 /* General method to setup timer/counter. */
++#define GPTU_FREE_TIMER 0x02 /* Free timer/counter. */
++#define GPTU_START_TIMER 0x03 /* Start or resume timer/counter. */
++#define GPTU_STOP_TIMER 0x04 /* Suspend timer/counter. */
++#define GPTU_GET_COUNT_VALUE 0x05 /* Get current count value. */
++#define GPTU_CALCULATE_DIVIDER 0x06 /* Calculate timer divider from given freq.*/
++#define GPTU_SET_TIMER 0x07 /* Simplified method to setup timer. */
++#define GPTU_SET_COUNTER 0x08 /* Simplified method to setup counter. */
++
++/*
++ * Data Type Used to Call ioctl
++ */
++struct gptu_ioctl_param {
++ unsigned int timer; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
++ * GPTU_SET_COUNTER, this field is ID of expected *
++ * timer/counter. If it's zero, a timer/counter would *
++ * be dynamically allocated and ID would be stored in *
++ * this field. *
++ * In command GPTU_GET_COUNT_VALUE, this field is *
++ * ignored. *
++ * In other command, this field is ID of timer/counter *
++ * allocated. */
++ unsigned int flag; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
++ * GPTU_SET_COUNTER, this field contains flags to *
++ * specify how to configure timer/counter. *
++ * In command GPTU_START_TIMER, zero indicate start *
++ * and non-zero indicate resume timer/counter. *
++ * In other command, this field is ignored. */
++ unsigned long value; /* In command GPTU_REQUEST_TIMER, this field contains *
++ * init/reload value. *
++ * In command GPTU_SET_TIMER, this field contains *
++ * frequency (0.001Hz) of timer. *
++ * In command GPTU_GET_COUNT_VALUE, current count *
++ * value would be stored in this field. *
++ * In command GPTU_CALCULATE_DIVIDER, this field *
++ * contains frequency wanted, and after calculation, *
++ * divider would be stored in this field to overwrite *
++ * the frequency. *
++ * In other command, this field is ignored. */
++ int pid; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
++ * if signal is required, this field contains process *
++ * ID to which signal would be sent. *
++ * In other command, this field is ignored. */
++ int sig; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
++ * if signal is required, this field contains signal *
++ * number which would be sent. *
++ * In other command, this field is ignored. */
++};
++
++/*
++ * ####################################
++ * Data Type
++ * ####################################
++ */
++typedef void (*timer_callback)(unsigned long arg);
++
++extern int lq_request_timer(unsigned int, unsigned int, unsigned long, unsigned long, unsigned long);
++extern int lq_free_timer(unsigned int);
++extern int lq_start_timer(unsigned int, int);
++extern int lq_stop_timer(unsigned int);
++extern int lq_reset_counter_flags(u32 timer, u32 flags);
++extern int lq_get_count_value(unsigned int, unsigned long *);
++extern u32 lq_cal_divider(unsigned long);
++extern int lq_set_timer(unsigned int, unsigned int, int, int, unsigned int, unsigned long, unsigned long);
++extern int lq_set_counter(unsigned int timer, unsigned int flag,
++ u32 reload, unsigned long arg1, unsigned long arg2);
++
++#endif /* __DANUBE_GPTU_DEV_H__2005_07_26__10_19__ */
+Index: linux-3.7.1/arch/mips/lantiq/xway/Makefile
+===================================================================
+--- linux-3.7.1.orig/arch/mips/lantiq/xway/Makefile 2012-12-18 20:48:40.717038183 +0100
++++ linux-3.7.1/arch/mips/lantiq/xway/Makefile 2012-12-18 20:49:10.129038884 +0100
+@@ -1,3 +1,3 @@
+-obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
++obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
+
+ obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
+++ /dev/null
-Index: linux-3.7-rc8/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
-===================================================================
---- linux-3.7-rc8.orig/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-12-13 10:34:27.044276614 +0100
-+++ linux-3.7-rc8/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-12-13 10:41:34.332287326 +0100
-@@ -90,5 +90,8 @@
- extern void ltq_pmu_enable(unsigned int module);
- extern void ltq_pmu_disable(unsigned int module);
-
-+/* allow tapi driver to read the gptu value */
-+long gptu_get_count(struct clk *clk);
-+
- #endif /* CONFIG_SOC_TYPE_XWAY */
- #endif /* _LTQ_XWAY_H__ */
-Index: linux-3.7-rc8/arch/mips/lantiq/xway/gptu.c
-===================================================================
---- linux-3.7-rc8.orig/arch/mips/lantiq/xway/gptu.c 2012-12-13 10:34:27.044276614 +0100
-+++ linux-3.7-rc8/arch/mips/lantiq/xway/gptu.c 2012-12-13 10:34:30.564276702 +0100
-@@ -105,8 +105,11 @@
- gptu_w32(CON_CNT | CON_EDGE_ANY | CON_SYNC | CON_CLK_INT,
- GPTU_CON(clk->bits));
- gptu_w32(1, GPTU_RLD(clk->bits));
-- gptu_w32(gptu_r32(GPTU_IRNEN) | BIT(clk->bits), GPTU_IRNEN);
-+/* gptu_w32(gptu_r32(GPTU_IRNEN) | BIT(clk->bits), GPTU_IRNEN);*/
- gptu_w32(RUN_SEN | RUN_RL, GPTU_RUN(clk->bits));
-+
-+ printk("%s:%s[%d]%X %X %X\n", __FILE__, __func__, __LINE__, gptu_r32(GPTU_CON(clk->bits)), gptu_r32(GPTU_RLD(clk->bits)), gptu_r32(GPTU_RUN(clk->bits)));
-+
- return 0;
- }
-
-@@ -119,6 +122,12 @@
- free_irq(irqres[clk->bits].start, NULL);
- }
-
-+long gptu_get_count(struct clk *clk)
-+{
-+ return gptu_r32(GPTU_CNT(clk->bits));
-+}
-+EXPORT_SYMBOL_GPL(gptu_get_count);
-+
- static inline void clkdev_add_gptu(struct device *dev, const char *con,
- unsigned int timer)
- {
-Index: linux-3.7-rc8/arch/mips/lantiq/xway/timer.c
-===================================================================
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-3.7-rc8/arch/mips/lantiq/xway/timer.c 2012-12-13 10:41:16.360286872 +0100
-@@ -0,0 +1,841 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/version.h>
-+#include <linux/types.h>
-+#include <linux/fs.h>
-+#include <linux/miscdevice.h>
-+#include <linux/init.h>
-+#include <linux/uaccess.h>
-+#include <linux/unistd.h>
-+#include <linux/errno.h>
-+#include <linux/interrupt.h>
-+#include <linux/sched.h>
-+
-+#include <asm/irq.h>
-+#include <asm/div64.h>
-+#include "../clk.h"
-+
-+#include <lantiq_soc.h>
-+#include <lantiq_irq.h>
-+#include <lantiq_timer.h>
-+
-+#define MAX_NUM_OF_32BIT_TIMER_BLOCKS 6
-+
-+#ifdef TIMER1A
-+#define FIRST_TIMER TIMER1A
-+#else
-+#define FIRST_TIMER 2
-+#endif
-+
-+/*
-+ * GPTC divider is set or not.
-+ */
-+#define GPTU_CLC_RMC_IS_SET 0
-+
-+/*
-+ * Timer Interrupt (IRQ)
-+ */
-+/* Must be adjusted when ICU driver is available */
-+#define TIMER_INTERRUPT (INT_NUM_IM3_IRL0 + 22)
-+
-+/*
-+ * Bits Operation
-+ */
-+#define GET_BITS(x, msb, lsb) \
-+ (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
-+#define SET_BITS(x, msb, lsb, value) \
-+ (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | \
-+ (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
-+
-+/*
-+ * GPTU Register Mapping
-+ */
-+#define LQ_GPTU (KSEG1 + 0x1E100A00)
-+#define LQ_GPTU_CLC ((volatile u32 *)(LQ_GPTU + 0x0000))
-+#define LQ_GPTU_ID ((volatile u32 *)(LQ_GPTU + 0x0008))
-+#define LQ_GPTU_CON(n, X) ((volatile u32 *)(LQ_GPTU + 0x0010 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
-+#define LQ_GPTU_RUN(n, X) ((volatile u32 *)(LQ_GPTU + 0x0018 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
-+#define LQ_GPTU_RELOAD(n, X) ((volatile u32 *)(LQ_GPTU + 0x0020 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
-+#define LQ_GPTU_COUNT(n, X) ((volatile u32 *)(LQ_GPTU + 0x0028 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
-+#define LQ_GPTU_IRNEN ((volatile u32 *)(LQ_GPTU + 0x00F4))
-+#define LQ_GPTU_IRNICR ((volatile u32 *)(LQ_GPTU + 0x00F8))
-+#define LQ_GPTU_IRNCR ((volatile u32 *)(LQ_GPTU + 0x00FC))
-+
-+/*
-+ * Clock Control Register
-+ */
-+#define GPTU_CLC_SMC GET_BITS(*LQ_GPTU_CLC, 23, 16)
-+#define GPTU_CLC_RMC GET_BITS(*LQ_GPTU_CLC, 15, 8)
-+#define GPTU_CLC_FSOE (*LQ_GPTU_CLC & (1 << 5))
-+#define GPTU_CLC_EDIS (*LQ_GPTU_CLC & (1 << 3))
-+#define GPTU_CLC_SPEN (*LQ_GPTU_CLC & (1 << 2))
-+#define GPTU_CLC_DISS (*LQ_GPTU_CLC & (1 << 1))
-+#define GPTU_CLC_DISR (*LQ_GPTU_CLC & (1 << 0))
-+
-+#define GPTU_CLC_SMC_SET(value) SET_BITS(0, 23, 16, (value))
-+#define GPTU_CLC_RMC_SET(value) SET_BITS(0, 15, 8, (value))
-+#define GPTU_CLC_FSOE_SET(value) ((value) ? (1 << 5) : 0)
-+#define GPTU_CLC_SBWE_SET(value) ((value) ? (1 << 4) : 0)
-+#define GPTU_CLC_EDIS_SET(value) ((value) ? (1 << 3) : 0)
-+#define GPTU_CLC_SPEN_SET(value) ((value) ? (1 << 2) : 0)
-+#define GPTU_CLC_DISR_SET(value) ((value) ? (1 << 0) : 0)
-+
-+/*
-+ * ID Register
-+ */
-+#define GPTU_ID_ID GET_BITS(*LQ_GPTU_ID, 15, 8)
-+#define GPTU_ID_CFG GET_BITS(*LQ_GPTU_ID, 7, 5)
-+#define GPTU_ID_REV GET_BITS(*LQ_GPTU_ID, 4, 0)
-+
-+/*
-+ * Control Register of Timer/Counter nX
-+ * n is the index of block (1 based index)
-+ * X is either A or B
-+ */
-+#define GPTU_CON_SRC_EG(n, X) (*LQ_GPTU_CON(n, X) & (1 << 10))
-+#define GPTU_CON_SRC_EXT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 9))
-+#define GPTU_CON_SYNC(n, X) (*LQ_GPTU_CON(n, X) & (1 << 8))
-+#define GPTU_CON_EDGE(n, X) GET_BITS(*LQ_GPTU_CON(n, X), 7, 6)
-+#define GPTU_CON_INV(n, X) (*LQ_GPTU_CON(n, X) & (1 << 5))
-+#define GPTU_CON_EXT(n, X) (*LQ_GPTU_CON(n, A) & (1 << 4)) /* Timer/Counter B does not have this bit */
-+#define GPTU_CON_STP(n, X) (*LQ_GPTU_CON(n, X) & (1 << 3))
-+#define GPTU_CON_CNT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 2))
-+#define GPTU_CON_DIR(n, X) (*LQ_GPTU_CON(n, X) & (1 << 1))
-+#define GPTU_CON_EN(n, X) (*LQ_GPTU_CON(n, X) & (1 << 0))
-+
-+#define GPTU_CON_SRC_EG_SET(value) ((value) ? 0 : (1 << 10))
-+#define GPTU_CON_SRC_EXT_SET(value) ((value) ? (1 << 9) : 0)
-+#define GPTU_CON_SYNC_SET(value) ((value) ? (1 << 8) : 0)
-+#define GPTU_CON_EDGE_SET(value) SET_BITS(0, 7, 6, (value))
-+#define GPTU_CON_INV_SET(value) ((value) ? (1 << 5) : 0)
-+#define GPTU_CON_EXT_SET(value) ((value) ? (1 << 4) : 0)
-+#define GPTU_CON_STP_SET(value) ((value) ? (1 << 3) : 0)
-+#define GPTU_CON_CNT_SET(value) ((value) ? (1 << 2) : 0)
-+#define GPTU_CON_DIR_SET(value) ((value) ? (1 << 1) : 0)
-+
-+#define GPTU_RUN_RL_SET(value) ((value) ? (1 << 2) : 0)
-+#define GPTU_RUN_CEN_SET(value) ((value) ? (1 << 1) : 0)
-+#define GPTU_RUN_SEN_SET(value) ((value) ? (1 << 0) : 0)
-+
-+#define GPTU_IRNEN_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
-+#define GPTU_IRNCR_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
-+
-+#define TIMER_FLAG_MASK_SIZE(x) (x & 0x0001)
-+#define TIMER_FLAG_MASK_TYPE(x) (x & 0x0002)
-+#define TIMER_FLAG_MASK_STOP(x) (x & 0x0004)
-+#define TIMER_FLAG_MASK_DIR(x) (x & 0x0008)
-+#define TIMER_FLAG_NONE_EDGE 0x0000
-+#define TIMER_FLAG_MASK_EDGE(x) (x & 0x0030)
-+#define TIMER_FLAG_REAL 0x0000
-+#define TIMER_FLAG_INVERT 0x0040
-+#define TIMER_FLAG_MASK_INVERT(x) (x & 0x0040)
-+#define TIMER_FLAG_MASK_TRIGGER(x) (x & 0x0070)
-+#define TIMER_FLAG_MASK_SYNC(x) (x & 0x0080)
-+#define TIMER_FLAG_CALLBACK_IN_HB 0x0200
-+#define TIMER_FLAG_MASK_HANDLE(x) (x & 0x0300)
-+#define TIMER_FLAG_MASK_SRC(x) (x & 0x1000)
-+
-+struct timer_dev_timer {
-+ unsigned int f_irq_on;
-+ unsigned int irq;
-+ unsigned int flag;
-+ unsigned long arg1;
-+ unsigned long arg2;
-+};
-+
-+struct timer_dev {
-+ struct mutex gptu_mutex;
-+ unsigned int number_of_timers;
-+ unsigned int occupation;
-+ unsigned int f_gptu_on;
-+ struct timer_dev_timer timer[MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2];
-+};
-+
-+
-+unsigned int ltq_get_fpi_bus_clock(int fpi) {
-+ struct clk *clk = clk_get_fpi();
-+ return clk_get_rate(clk);
-+}
-+
-+
-+static long gptu_ioctl(struct file *, unsigned int, unsigned long);
-+static int gptu_open(struct inode *, struct file *);
-+static int gptu_release(struct inode *, struct file *);
-+
-+static struct file_operations gptu_fops = {
-+ .owner = THIS_MODULE,
-+ .unlocked_ioctl = gptu_ioctl,
-+ .open = gptu_open,
-+ .release = gptu_release
-+};
-+
-+static struct miscdevice gptu_miscdev = {
-+ .minor = MISC_DYNAMIC_MINOR,
-+ .name = "gptu",
-+ .fops = &gptu_fops,
-+};
-+
-+static struct timer_dev timer_dev;
-+
-+static irqreturn_t timer_irq_handler(int irq, void *p)
-+{
-+ unsigned int timer;
-+ unsigned int flag;
-+ struct timer_dev_timer *dev_timer = (struct timer_dev_timer *)p;
-+
-+ timer = irq - TIMER_INTERRUPT;
-+ if (timer < timer_dev.number_of_timers
-+ && dev_timer == &timer_dev.timer[timer]) {
-+ /* Clear interrupt. */
-+ ltq_w32(1 << timer, LQ_GPTU_IRNCR);
-+
-+ /* Call user hanler or signal. */
-+ flag = dev_timer->flag;
-+ if (!(timer & 0x01)
-+ || TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
-+ /* 16-bit timer or timer A of 32-bit timer */
-+ switch (TIMER_FLAG_MASK_HANDLE(flag)) {
-+ case TIMER_FLAG_CALLBACK_IN_IRQ:
-+ case TIMER_FLAG_CALLBACK_IN_HB:
-+ if (dev_timer->arg1)
-+ (*(timer_callback)dev_timer->arg1)(dev_timer->arg2);
-+ break;
-+ case TIMER_FLAG_SIGNAL:
-+ send_sig((int)dev_timer->arg2, (struct task_struct *)dev_timer->arg1, 0);
-+ break;
-+ }
-+ }
-+ }
-+ return IRQ_HANDLED;
-+}
-+
-+static inline void lq_enable_gptu(void)
-+{
-+ struct clk *clk = clk_get_sys("ltq_gptu", NULL);
-+ clk_enable(clk);
-+
-+ //ltq_pmu_enable(PMU_GPT);
-+
-+ /* Set divider as 1, disable write protection for SPEN, enable module. */
-+ *LQ_GPTU_CLC =
-+ GPTU_CLC_SMC_SET(0x00) |
-+ GPTU_CLC_RMC_SET(0x01) |
-+ GPTU_CLC_FSOE_SET(0) |
-+ GPTU_CLC_SBWE_SET(1) |
-+ GPTU_CLC_EDIS_SET(0) |
-+ GPTU_CLC_SPEN_SET(0) |
-+ GPTU_CLC_DISR_SET(0);
-+}
-+
-+static inline void lq_disable_gptu(void)
-+{
-+ struct clk *clk = clk_get_sys("ltq_gptu", NULL);
-+ ltq_w32(0x00, LQ_GPTU_IRNEN);
-+ ltq_w32(0xfff, LQ_GPTU_IRNCR);
-+
-+ /* Set divider as 0, enable write protection for SPEN, disable module. */
-+ *LQ_GPTU_CLC =
-+ GPTU_CLC_SMC_SET(0x00) |
-+ GPTU_CLC_RMC_SET(0x00) |
-+ GPTU_CLC_FSOE_SET(0) |
-+ GPTU_CLC_SBWE_SET(0) |
-+ GPTU_CLC_EDIS_SET(0) |
-+ GPTU_CLC_SPEN_SET(0) |
-+ GPTU_CLC_DISR_SET(1);
-+
-+ clk_enable(clk);
-+}
-+
-+int lq_request_timer(unsigned int timer, unsigned int flag,
-+ unsigned long value, unsigned long arg1, unsigned long arg2)
-+{
-+ int ret = 0;
-+ unsigned int con_reg, irnen_reg;
-+ int n, X;
-+
-+ if (timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ printk(KERN_INFO "request_timer(%d, 0x%08X, %lu)...",
-+ timer, flag, value);
-+
-+ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT)
-+ value &= 0xFFFF;
-+ else
-+ timer &= ~0x01;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ /*
-+ * Allocate timer.
-+ */
-+ if (timer < FIRST_TIMER) {
-+ unsigned int mask;
-+ unsigned int shift;
-+ /* This takes care of TIMER1B which is the only choice for Voice TAPI system */
-+ unsigned int offset = TIMER2A;
-+
-+ /*
-+ * Pick up a free timer.
-+ */
-+ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
-+ mask = 1 << offset;
-+ shift = 1;
-+ } else {
-+ mask = 3 << offset;
-+ shift = 2;
-+ }
-+ for (timer = offset;
-+ timer < offset + timer_dev.number_of_timers;
-+ timer += shift, mask <<= shift)
-+ if (!(timer_dev.occupation & mask)) {
-+ timer_dev.occupation |= mask;
-+ break;
-+ }
-+ if (timer >= offset + timer_dev.number_of_timers) {
-+ printk("failed![%d]\n", __LINE__);
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ } else
-+ ret = timer;
-+ } else {
-+ register unsigned int mask;
-+
-+ /*
-+ * Check if the requested timer is free.
-+ */
-+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if ((timer_dev.occupation & mask)) {
-+ printk("failed![%d] mask %#x, timer_dev.occupation %#x\n",
-+ __LINE__, mask, timer_dev.occupation);
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EBUSY;
-+ } else {
-+ timer_dev.occupation |= mask;
-+ ret = 0;
-+ }
-+ }
-+
-+ /*
-+ * Prepare control register value.
-+ */
-+ switch (TIMER_FLAG_MASK_EDGE(flag)) {
-+ default:
-+ case TIMER_FLAG_NONE_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x00);
-+ break;
-+ case TIMER_FLAG_RISE_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x01);
-+ break;
-+ case TIMER_FLAG_FALL_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x02);
-+ break;
-+ case TIMER_FLAG_ANY_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x03);
-+ break;
-+ }
-+ if (TIMER_FLAG_MASK_TYPE(flag) == TIMER_FLAG_TIMER)
-+ con_reg |=
-+ TIMER_FLAG_MASK_SRC(flag) ==
-+ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) :
-+ GPTU_CON_SRC_EXT_SET(0);
-+ else
-+ con_reg |=
-+ TIMER_FLAG_MASK_SRC(flag) ==
-+ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) :
-+ GPTU_CON_SRC_EG_SET(0);
-+ con_reg |=
-+ TIMER_FLAG_MASK_SYNC(flag) ==
-+ TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) :
-+ GPTU_CON_SYNC_SET(1);
-+ con_reg |=
-+ TIMER_FLAG_MASK_INVERT(flag) ==
-+ TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
-+ con_reg |=
-+ TIMER_FLAG_MASK_SIZE(flag) ==
-+ TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) :
-+ GPTU_CON_EXT_SET(1);
-+ con_reg |=
-+ TIMER_FLAG_MASK_STOP(flag) ==
-+ TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
-+ con_reg |=
-+ TIMER_FLAG_MASK_TYPE(flag) ==
-+ TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) :
-+ GPTU_CON_CNT_SET(1);
-+ con_reg |=
-+ TIMER_FLAG_MASK_DIR(flag) ==
-+ TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
-+
-+ /*
-+ * Fill up running data.
-+ */
-+ timer_dev.timer[timer - FIRST_TIMER].flag = flag;
-+ timer_dev.timer[timer - FIRST_TIMER].arg1 = arg1;
-+ timer_dev.timer[timer - FIRST_TIMER].arg2 = arg2;
-+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
-+ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flag;
-+
-+ /*
-+ * Enable GPTU module.
-+ */
-+ if (!timer_dev.f_gptu_on) {
-+ lq_enable_gptu();
-+ timer_dev.f_gptu_on = 1;
-+ }
-+
-+ /*
-+ * Enable IRQ.
-+ */
-+ if (TIMER_FLAG_MASK_HANDLE(flag) != TIMER_FLAG_NO_HANDLE) {
-+ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL)
-+ timer_dev.timer[timer - FIRST_TIMER].arg1 =
-+ (unsigned long) find_task_by_vpid((int) arg1);
-+
-+ irnen_reg = 1 << (timer - FIRST_TIMER);
-+
-+ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL
-+ || (TIMER_FLAG_MASK_HANDLE(flag) ==
-+ TIMER_FLAG_CALLBACK_IN_IRQ
-+ && timer_dev.timer[timer - FIRST_TIMER].arg1)) {
-+ enable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
-+ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 1;
-+ }
-+ } else
-+ irnen_reg = 0;
-+
-+ /*
-+ * Write config register, reload value and enable interrupt.
-+ */
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+ *LQ_GPTU_CON(n, X) = con_reg;
-+ *LQ_GPTU_RELOAD(n, X) = value;
-+ /* printk("reload value = %d\n", (u32)value); */
-+ *LQ_GPTU_IRNEN |= irnen_reg;
-+
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ printk("successful!\n");
-+ return ret;
-+}
-+EXPORT_SYMBOL(lq_request_timer);
-+
-+int lq_free_timer(unsigned int timer)
-+{
-+ unsigned int flag;
-+ unsigned int mask;
-+ int n, X;
-+
-+ if (!timer_dev.f_gptu_on)
-+ return -EINVAL;
-+
-+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
-+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
-+ timer &= ~0x01;
-+
-+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if (((timer_dev.occupation & mask) ^ mask)) {
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ }
-+
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+
-+ if (GPTU_CON_EN(n, X))
-+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
-+
-+ *LQ_GPTU_IRNEN &= ~GPTU_IRNEN_TC_SET(n, X, 1);
-+ *LQ_GPTU_IRNCR |= GPTU_IRNCR_TC_SET(n, X, 1);
-+
-+ if (timer_dev.timer[timer - FIRST_TIMER].f_irq_on) {
-+ disable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
-+ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 0;
-+ }
-+
-+ timer_dev.occupation &= ~mask;
-+ if (!timer_dev.occupation && timer_dev.f_gptu_on) {
-+ lq_disable_gptu();
-+ timer_dev.f_gptu_on = 0;
-+ }
-+
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(lq_free_timer);
-+
-+int lq_start_timer(unsigned int timer, int is_resume)
-+{
-+ unsigned int flag;
-+ unsigned int mask;
-+ int n, X;
-+
-+ if (!timer_dev.f_gptu_on)
-+ return -EINVAL;
-+
-+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
-+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
-+ timer &= ~0x01;
-+
-+ mask = (TIMER_FLAG_MASK_SIZE(flag) ==
-+ TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if (((timer_dev.occupation & mask) ^ mask)) {
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ }
-+
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+
-+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_RL_SET(!is_resume) | GPTU_RUN_SEN_SET(1);
-+
-+
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(lq_start_timer);
-+
-+int lq_stop_timer(unsigned int timer)
-+{
-+ unsigned int flag;
-+ unsigned int mask;
-+ int n, X;
-+
-+ if (!timer_dev.f_gptu_on)
-+ return -EINVAL;
-+
-+ if (timer < FIRST_TIMER
-+ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
-+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
-+ timer &= ~0x01;
-+
-+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if (((timer_dev.occupation & mask) ^ mask)) {
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ }
-+
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+
-+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
-+
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(lq_stop_timer);
-+
-+int lq_reset_counter_flags(u32 timer, u32 flags)
-+{
-+ unsigned int oflag;
-+ unsigned int mask, con_reg;
-+ int n, X;
-+
-+ if (!timer_dev.f_gptu_on)
-+ return -EINVAL;
-+
-+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ oflag = timer_dev.timer[timer - FIRST_TIMER].flag;
-+ if (TIMER_FLAG_MASK_SIZE(oflag) != TIMER_FLAG_16BIT)
-+ timer &= ~0x01;
-+
-+ mask = (TIMER_FLAG_MASK_SIZE(oflag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if (((timer_dev.occupation & mask) ^ mask)) {
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ }
-+
-+ switch (TIMER_FLAG_MASK_EDGE(flags)) {
-+ default:
-+ case TIMER_FLAG_NONE_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x00);
-+ break;
-+ case TIMER_FLAG_RISE_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x01);
-+ break;
-+ case TIMER_FLAG_FALL_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x02);
-+ break;
-+ case TIMER_FLAG_ANY_EDGE:
-+ con_reg = GPTU_CON_EDGE_SET(0x03);
-+ break;
-+ }
-+ if (TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER)
-+ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) : GPTU_CON_SRC_EXT_SET(0);
-+ else
-+ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) : GPTU_CON_SRC_EG_SET(0);
-+ con_reg |= TIMER_FLAG_MASK_SYNC(flags) == TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) : GPTU_CON_SYNC_SET(1);
-+ con_reg |= TIMER_FLAG_MASK_INVERT(flags) == TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
-+ con_reg |= TIMER_FLAG_MASK_SIZE(flags) == TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) : GPTU_CON_EXT_SET(1);
-+ con_reg |= TIMER_FLAG_MASK_STOP(flags) == TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
-+ con_reg |= TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) : GPTU_CON_CNT_SET(1);
-+ con_reg |= TIMER_FLAG_MASK_DIR(flags) == TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
-+
-+ timer_dev.timer[timer - FIRST_TIMER].flag = flags;
-+ if (TIMER_FLAG_MASK_SIZE(flags) != TIMER_FLAG_16BIT)
-+ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flags;
-+
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+
-+ *LQ_GPTU_CON(n, X) = con_reg;
-+ smp_wmb();
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return 0;
-+}
-+EXPORT_SYMBOL(lq_reset_counter_flags);
-+
-+int lq_get_count_value(unsigned int timer, unsigned long *value)
-+{
-+ unsigned int flag;
-+ unsigned int mask;
-+ int n, X;
-+
-+ if (!timer_dev.f_gptu_on)
-+ return -EINVAL;
-+
-+ if (timer < FIRST_TIMER
-+ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
-+ return -EINVAL;
-+
-+ mutex_lock(&timer_dev.gptu_mutex);
-+
-+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
-+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
-+ timer &= ~0x01;
-+
-+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
-+ if (((timer_dev.occupation & mask) ^ mask)) {
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+ return -EINVAL;
-+ }
-+
-+ n = timer >> 1;
-+ X = timer & 0x01;
-+
-+ *value = *LQ_GPTU_COUNT(n, X);
-+
-+
-+ mutex_unlock(&timer_dev.gptu_mutex);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(lq_get_count_value);
-+
-+u32 lq_cal_divider(unsigned long freq)
-+{
-+ u64 module_freq, fpi = ltq_get_fpi_bus_clock(2);
-+ u32 clock_divider = 1;
-+ module_freq = fpi * 1000;
-+ do_div(module_freq, clock_divider * freq);
-+ return module_freq;
-+}
-+EXPORT_SYMBOL(lq_cal_divider);
-+
-+int lq_set_timer(unsigned int timer, unsigned int freq, int is_cyclic,
-+ int is_ext_src, unsigned int handle_flag, unsigned long arg1,
-+ unsigned long arg2)
-+{
-+ unsigned long divider;
-+ unsigned int flag;
-+
-+ divider = lq_cal_divider(freq);
-+ if (divider == 0)
-+ return -EINVAL;
-+ flag = ((divider & ~0xFFFF) ? TIMER_FLAG_32BIT : TIMER_FLAG_16BIT)
-+ | (is_cyclic ? TIMER_FLAG_CYCLIC : TIMER_FLAG_ONCE)
-+ | (is_ext_src ? TIMER_FLAG_EXT_SRC : TIMER_FLAG_INT_SRC)
-+ | TIMER_FLAG_TIMER | TIMER_FLAG_DOWN
-+ | TIMER_FLAG_MASK_HANDLE(handle_flag);
-+
-+ printk(KERN_INFO "lq_set_timer(%d, %d), divider = %lu\n",
-+ timer, freq, divider);
-+ return lq_request_timer(timer, flag, divider, arg1, arg2);
-+}
-+EXPORT_SYMBOL(lq_set_timer);
-+
-+int lq_set_counter(unsigned int timer, unsigned int flag, u32 reload,
-+ unsigned long arg1, unsigned long arg2)
-+{
-+ printk(KERN_INFO "lq_set_counter(%d, %#x, %d)\n", timer, flag, reload);
-+ return lq_request_timer(timer, flag, reload, arg1, arg2);
-+}
-+EXPORT_SYMBOL(lq_set_counter);
-+
-+static long gptu_ioctl(struct file *file, unsigned int cmd,
-+ unsigned long arg)
-+{
-+ int ret;
-+ struct gptu_ioctl_param param;
-+
-+ if (!access_ok(VERIFY_READ, arg, sizeof(struct gptu_ioctl_param)))
-+ return -EFAULT;
-+ copy_from_user(¶m, (void *) arg, sizeof(param));
-+
-+ if ((((cmd == GPTU_REQUEST_TIMER || cmd == GPTU_SET_TIMER
-+ || GPTU_SET_COUNTER) && param.timer < 2)
-+ || cmd == GPTU_GET_COUNT_VALUE || cmd == GPTU_CALCULATE_DIVIDER)
-+ && !access_ok(VERIFY_WRITE, arg,
-+ sizeof(struct gptu_ioctl_param)))
-+ return -EFAULT;
-+
-+ switch (cmd) {
-+ case GPTU_REQUEST_TIMER:
-+ ret = lq_request_timer(param.timer, param.flag, param.value,
-+ (unsigned long) param.pid,
-+ (unsigned long) param.sig);
-+ if (ret > 0) {
-+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
-+ timer, &ret, sizeof(&ret));
-+ ret = 0;
-+ }
-+ break;
-+ case GPTU_FREE_TIMER:
-+ ret = lq_free_timer(param.timer);
-+ break;
-+ case GPTU_START_TIMER:
-+ ret = lq_start_timer(param.timer, param.flag);
-+ break;
-+ case GPTU_STOP_TIMER:
-+ ret = lq_stop_timer(param.timer);
-+ break;
-+ case GPTU_GET_COUNT_VALUE:
-+ ret = lq_get_count_value(param.timer, ¶m.value);
-+ if (!ret)
-+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
-+ value, ¶m.value,
-+ sizeof(param.value));
-+ break;
-+ case GPTU_CALCULATE_DIVIDER:
-+ param.value = lq_cal_divider(param.value);
-+ if (param.value == 0)
-+ ret = -EINVAL;
-+ else {
-+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
-+ value, ¶m.value,
-+ sizeof(param.value));
-+ ret = 0;
-+ }
-+ break;
-+ case GPTU_SET_TIMER:
-+ ret = lq_set_timer(param.timer, param.value,
-+ TIMER_FLAG_MASK_STOP(param.flag) !=
-+ TIMER_FLAG_ONCE ? 1 : 0,
-+ TIMER_FLAG_MASK_SRC(param.flag) ==
-+ TIMER_FLAG_EXT_SRC ? 1 : 0,
-+ TIMER_FLAG_MASK_HANDLE(param.flag) ==
-+ TIMER_FLAG_SIGNAL ? TIMER_FLAG_SIGNAL :
-+ TIMER_FLAG_NO_HANDLE,
-+ (unsigned long) param.pid,
-+ (unsigned long) param.sig);
-+ if (ret > 0) {
-+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
-+ timer, &ret, sizeof(&ret));
-+ ret = 0;
-+ }
-+ break;
-+ case GPTU_SET_COUNTER:
-+ lq_set_counter(param.timer, param.flag, param.value, 0, 0);
-+ if (ret > 0) {
-+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
-+ timer, &ret, sizeof(&ret));
-+ ret = 0;
-+ }
-+ break;
-+ default:
-+ ret = -ENOTTY;
-+ }
-+
-+ return ret;
-+}
-+
-+static int gptu_open(struct inode *inode, struct file *file)
-+{
-+ return 0;
-+}
-+
-+static int gptu_release(struct inode *inode, struct file *file)
-+{
-+ return 0;
-+}
-+
-+int __init lq_gptu_init(void)
-+{
-+ int ret;
-+ unsigned int i;
-+
-+ ltq_w32(0, LQ_GPTU_IRNEN);
-+ ltq_w32(0xfff, LQ_GPTU_IRNCR);
-+
-+ memset(&timer_dev, 0, sizeof(timer_dev));
-+ mutex_init(&timer_dev.gptu_mutex);
-+
-+ lq_enable_gptu();
-+ timer_dev.number_of_timers = GPTU_ID_CFG * 2;
-+ lq_disable_gptu();
-+ if (timer_dev.number_of_timers > MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2)
-+ timer_dev.number_of_timers = MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2;
-+ printk(KERN_INFO "gptu: totally %d 16-bit timers/counters\n", timer_dev.number_of_timers);
-+
-+ ret = misc_register(&gptu_miscdev);
-+ if (ret) {
-+ printk(KERN_ERR "gptu: can't misc_register, get error %d\n", -ret);
-+ return ret;
-+ } else {
-+ printk(KERN_INFO "gptu: misc_register on minor %d\n", gptu_miscdev.minor);
-+ }
-+
-+ for (i = 0; i < timer_dev.number_of_timers; i++) {
-+ ret = request_irq(TIMER_INTERRUPT + i, timer_irq_handler, IRQF_TIMER, gptu_miscdev.name, &timer_dev.timer[i]);
-+ if (ret) {
-+ for (; i >= 0; i--)
-+ free_irq(TIMER_INTERRUPT + i, &timer_dev.timer[i]);
-+ misc_deregister(&gptu_miscdev);
-+ printk(KERN_ERR "gptu: failed in requesting irq (%d), get error %d\n", i, -ret);
-+ return ret;
-+ } else {
-+ timer_dev.timer[i].irq = TIMER_INTERRUPT + i;
-+ disable_irq(timer_dev.timer[i].irq);
-+ printk(KERN_INFO "gptu: succeeded to request irq %d\n", timer_dev.timer[i].irq);
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+void __exit lq_gptu_exit(void)
-+{
-+ unsigned int i;
-+
-+ for (i = 0; i < timer_dev.number_of_timers; i++) {
-+ if (timer_dev.timer[i].f_irq_on)
-+ disable_irq(timer_dev.timer[i].irq);
-+ free_irq(timer_dev.timer[i].irq, &timer_dev.timer[i]);
-+ }
-+ lq_disable_gptu();
-+ misc_deregister(&gptu_miscdev);
-+}
-+
-+module_init(lq_gptu_init);
-+module_exit(lq_gptu_exit);
-Index: linux-3.7-rc8/arch/mips/include/asm/mach-lantiq/lantiq_timer.h
-===================================================================
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-3.7-rc8/arch/mips/include/asm/mach-lantiq/lantiq_timer.h 2012-12-13 10:34:30.564276702 +0100
-@@ -0,0 +1,155 @@
-+#ifndef __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
-+#define __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
-+
-+
-+/******************************************************************************
-+ Copyright (c) 2002, Infineon Technologies. All rights reserved.
-+
-+ No Warranty
-+ Because the program is licensed free of charge, there is no warranty for
-+ the program, to the extent permitted by applicable law. Except when
-+ otherwise stated in writing the copyright holders and/or other parties
-+ provide the program "as is" without warranty of any kind, either
-+ expressed or implied, including, but not limited to, the implied
-+ warranties of merchantability and fitness for a particular purpose. The
-+ entire risk as to the quality and performance of the program is with
-+ you. should the program prove defective, you assume the cost of all
-+ necessary servicing, repair or correction.
-+
-+ In no event unless required by applicable law or agreed to in writing
-+ will any copyright holder, or any other party who may modify and/or
-+ redistribute the program as permitted above, be liable to you for
-+ damages, including any general, special, incidental or consequential
-+ damages arising out of the use or inability to use the program
-+ (including but not limited to loss of data or data being rendered
-+ inaccurate or losses sustained by you or third parties or a failure of
-+ the program to operate with any other programs), even if such holder or
-+ other party has been advised of the possibility of such damages.
-+******************************************************************************/
-+
-+
-+/*
-+ * ####################################
-+ * Definition
-+ * ####################################
-+ */
-+
-+/*
-+ * Available Timer/Counter Index
-+ */
-+#define TIMER(n, X) (n * 2 + (X ? 1 : 0))
-+#define TIMER_ANY 0x00
-+#define TIMER1A TIMER(1, 0)
-+#define TIMER1B TIMER(1, 1)
-+#define TIMER2A TIMER(2, 0)
-+#define TIMER2B TIMER(2, 1)
-+#define TIMER3A TIMER(3, 0)
-+#define TIMER3B TIMER(3, 1)
-+
-+/*
-+ * Flag of Timer/Counter
-+ * These flags specify the way in which timer is configured.
-+ */
-+/* Bit size of timer/counter. */
-+#define TIMER_FLAG_16BIT 0x0000
-+#define TIMER_FLAG_32BIT 0x0001
-+/* Switch between timer and counter. */
-+#define TIMER_FLAG_TIMER 0x0000
-+#define TIMER_FLAG_COUNTER 0x0002
-+/* Stop or continue when overflowing/underflowing. */
-+#define TIMER_FLAG_ONCE 0x0000
-+#define TIMER_FLAG_CYCLIC 0x0004
-+/* Count up or counter down. */
-+#define TIMER_FLAG_UP 0x0000
-+#define TIMER_FLAG_DOWN 0x0008
-+/* Count on specific level or edge. */
-+#define TIMER_FLAG_HIGH_LEVEL_SENSITIVE 0x0000
-+#define TIMER_FLAG_LOW_LEVEL_SENSITIVE 0x0040
-+#define TIMER_FLAG_RISE_EDGE 0x0010
-+#define TIMER_FLAG_FALL_EDGE 0x0020
-+#define TIMER_FLAG_ANY_EDGE 0x0030
-+/* Signal is syncronous to module clock or not. */
-+#define TIMER_FLAG_UNSYNC 0x0000
-+#define TIMER_FLAG_SYNC 0x0080
-+/* Different interrupt handle type. */
-+#define TIMER_FLAG_NO_HANDLE 0x0000
-+#if defined(__KERNEL__)
-+ #define TIMER_FLAG_CALLBACK_IN_IRQ 0x0100
-+#endif // defined(__KERNEL__)
-+#define TIMER_FLAG_SIGNAL 0x0300
-+/* Internal clock source or external clock source */
-+#define TIMER_FLAG_INT_SRC 0x0000
-+#define TIMER_FLAG_EXT_SRC 0x1000
-+
-+
-+/*
-+ * ioctl Command
-+ */
-+#define GPTU_REQUEST_TIMER 0x01 /* General method to setup timer/counter. */
-+#define GPTU_FREE_TIMER 0x02 /* Free timer/counter. */
-+#define GPTU_START_TIMER 0x03 /* Start or resume timer/counter. */
-+#define GPTU_STOP_TIMER 0x04 /* Suspend timer/counter. */
-+#define GPTU_GET_COUNT_VALUE 0x05 /* Get current count value. */
-+#define GPTU_CALCULATE_DIVIDER 0x06 /* Calculate timer divider from given freq.*/
-+#define GPTU_SET_TIMER 0x07 /* Simplified method to setup timer. */
-+#define GPTU_SET_COUNTER 0x08 /* Simplified method to setup counter. */
-+
-+/*
-+ * Data Type Used to Call ioctl
-+ */
-+struct gptu_ioctl_param {
-+ unsigned int timer; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
-+ * GPTU_SET_COUNTER, this field is ID of expected *
-+ * timer/counter. If it's zero, a timer/counter would *
-+ * be dynamically allocated and ID would be stored in *
-+ * this field. *
-+ * In command GPTU_GET_COUNT_VALUE, this field is *
-+ * ignored. *
-+ * In other command, this field is ID of timer/counter *
-+ * allocated. */
-+ unsigned int flag; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
-+ * GPTU_SET_COUNTER, this field contains flags to *
-+ * specify how to configure timer/counter. *
-+ * In command GPTU_START_TIMER, zero indicate start *
-+ * and non-zero indicate resume timer/counter. *
-+ * In other command, this field is ignored. */
-+ unsigned long value; /* In command GPTU_REQUEST_TIMER, this field contains *
-+ * init/reload value. *
-+ * In command GPTU_SET_TIMER, this field contains *
-+ * frequency (0.001Hz) of timer. *
-+ * In command GPTU_GET_COUNT_VALUE, current count *
-+ * value would be stored in this field. *
-+ * In command GPTU_CALCULATE_DIVIDER, this field *
-+ * contains frequency wanted, and after calculation, *
-+ * divider would be stored in this field to overwrite *
-+ * the frequency. *
-+ * In other command, this field is ignored. */
-+ int pid; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
-+ * if signal is required, this field contains process *
-+ * ID to which signal would be sent. *
-+ * In other command, this field is ignored. */
-+ int sig; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
-+ * if signal is required, this field contains signal *
-+ * number which would be sent. *
-+ * In other command, this field is ignored. */
-+};
-+
-+/*
-+ * ####################################
-+ * Data Type
-+ * ####################################
-+ */
-+typedef void (*timer_callback)(unsigned long arg);
-+
-+extern int lq_request_timer(unsigned int, unsigned int, unsigned long, unsigned long, unsigned long);
-+extern int lq_free_timer(unsigned int);
-+extern int lq_start_timer(unsigned int, int);
-+extern int lq_stop_timer(unsigned int);
-+extern int lq_reset_counter_flags(u32 timer, u32 flags);
-+extern int lq_get_count_value(unsigned int, unsigned long *);
-+extern u32 lq_cal_divider(unsigned long);
-+extern int lq_set_timer(unsigned int, unsigned int, int, int, unsigned int, unsigned long, unsigned long);
-+extern int lq_set_counter(unsigned int timer, unsigned int flag,
-+ u32 reload, unsigned long arg1, unsigned long arg2);
-+
-+#endif /* __DANUBE_GPTU_DEV_H__2005_07_26__10_19__ */
projects / openwrt / staging / luka.git / commitdiff