diff options
Diffstat (limited to 'arch/blackfin/kernel/gptimers.c')
| -rw-r--r-- | arch/blackfin/kernel/gptimers.c | 383 |
1 files changed, 0 insertions, 383 deletions
diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c deleted file mode 100644 index d776773d3869..000000000000 --- a/arch/blackfin/kernel/gptimers.c +++ /dev/null @@ -1,383 +0,0 @@ -/* - * gptimers.c - Blackfin General Purpose Timer core API - * - * Copyright (c) 2005-2008 Analog Devices Inc. - * Copyright (C) 2005 John DeHority - * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) - * - * Licensed under the GPLv2. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/io.h> - -#include <asm/blackfin.h> -#include <asm/gptimers.h> - -#ifdef DEBUG -# define tassert(expr) -#else -# define tassert(expr) \ - if (!(expr)) \ - printk(KERN_DEBUG "%s:%s:%i: Assertion failed: " #expr "\n", __FILE__, __func__, __LINE__); -#endif - -#ifndef CONFIG_BF60x -# define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1) -#else -# define BFIN_TIMER_NUM_GROUP 1 -#endif - -static struct bfin_gptimer_regs * const timer_regs[MAX_BLACKFIN_GPTIMERS] = -{ - (void *)TIMER0_CONFIG, - (void *)TIMER1_CONFIG, - (void *)TIMER2_CONFIG, -#if (MAX_BLACKFIN_GPTIMERS > 3) - (void *)TIMER3_CONFIG, - (void *)TIMER4_CONFIG, - (void *)TIMER5_CONFIG, - (void *)TIMER6_CONFIG, - (void *)TIMER7_CONFIG, -# if (MAX_BLACKFIN_GPTIMERS > 8) - (void *)TIMER8_CONFIG, - (void *)TIMER9_CONFIG, - (void *)TIMER10_CONFIG, -# if (MAX_BLACKFIN_GPTIMERS > 11) - (void *)TIMER11_CONFIG, -# endif -# endif -#endif -}; - -static struct bfin_gptimer_group_regs * const group_regs[BFIN_TIMER_NUM_GROUP] = -{ - (void *)TIMER0_GROUP_REG, -#if (MAX_BLACKFIN_GPTIMERS > 8) - (void *)TIMER8_GROUP_REG, -#endif -}; - -static uint32_t const trun_mask[MAX_BLACKFIN_GPTIMERS] = -{ - TIMER_STATUS_TRUN0, - TIMER_STATUS_TRUN1, - TIMER_STATUS_TRUN2, -#if (MAX_BLACKFIN_GPTIMERS > 3) - TIMER_STATUS_TRUN3, - TIMER_STATUS_TRUN4, - TIMER_STATUS_TRUN5, - TIMER_STATUS_TRUN6, - TIMER_STATUS_TRUN7, -# if (MAX_BLACKFIN_GPTIMERS > 8) - TIMER_STATUS_TRUN8, - TIMER_STATUS_TRUN9, - TIMER_STATUS_TRUN10, -# if (MAX_BLACKFIN_GPTIMERS > 11) - TIMER_STATUS_TRUN11, -# endif -# endif -#endif -}; - -static uint32_t const tovf_mask[MAX_BLACKFIN_GPTIMERS] = -{ - TIMER_STATUS_TOVF0, - TIMER_STATUS_TOVF1, - TIMER_STATUS_TOVF2, -#if (MAX_BLACKFIN_GPTIMERS > 3) - TIMER_STATUS_TOVF3, - TIMER_STATUS_TOVF4, - TIMER_STATUS_TOVF5, - TIMER_STATUS_TOVF6, - TIMER_STATUS_TOVF7, -# if (MAX_BLACKFIN_GPTIMERS > 8) - TIMER_STATUS_TOVF8, - TIMER_STATUS_TOVF9, - TIMER_STATUS_TOVF10, -# if (MAX_BLACKFIN_GPTIMERS > 11) - TIMER_STATUS_TOVF11, -# endif -# endif -#endif -}; - -static uint32_t const timil_mask[MAX_BLACKFIN_GPTIMERS] = -{ - TIMER_STATUS_TIMIL0, - TIMER_STATUS_TIMIL1, - TIMER_STATUS_TIMIL2, -#if (MAX_BLACKFIN_GPTIMERS > 3) - TIMER_STATUS_TIMIL3, - TIMER_STATUS_TIMIL4, - TIMER_STATUS_TIMIL5, - TIMER_STATUS_TIMIL6, - TIMER_STATUS_TIMIL7, -# if (MAX_BLACKFIN_GPTIMERS > 8) - TIMER_STATUS_TIMIL8, - TIMER_STATUS_TIMIL9, - TIMER_STATUS_TIMIL10, -# if (MAX_BLACKFIN_GPTIMERS > 11) - TIMER_STATUS_TIMIL11, -# endif -# endif -#endif -}; - -void set_gptimer_pwidth(unsigned int timer_id, uint32_t value) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&timer_regs[timer_id]->width, value); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_pwidth); - -uint32_t get_gptimer_pwidth(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return bfin_read(&timer_regs[timer_id]->width); -} -EXPORT_SYMBOL(get_gptimer_pwidth); - -void set_gptimer_period(unsigned int timer_id, uint32_t period) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&timer_regs[timer_id]->period, period); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_period); - -uint32_t get_gptimer_period(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return bfin_read(&timer_regs[timer_id]->period); -} -EXPORT_SYMBOL(get_gptimer_period); - -uint32_t get_gptimer_count(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return bfin_read(&timer_regs[timer_id]->counter); -} -EXPORT_SYMBOL(get_gptimer_count); - -#ifdef CONFIG_BF60x -void set_gptimer_delay(unsigned int timer_id, uint32_t delay) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&timer_regs[timer_id]->delay, delay); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_delay); - -uint32_t get_gptimer_delay(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return bfin_read(&timer_regs[timer_id]->delay); -} -EXPORT_SYMBOL(get_gptimer_delay); -#endif - -#ifdef CONFIG_BF60x -int get_gptimer_intr(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->data_ilat) & timil_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_intr); - -void clear_gptimer_intr(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->data_ilat, timil_mask[timer_id]); -} -EXPORT_SYMBOL(clear_gptimer_intr); - -int get_gptimer_over(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->stat_ilat) & tovf_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_over); - -void clear_gptimer_over(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->stat_ilat, tovf_mask[timer_id]); -} -EXPORT_SYMBOL(clear_gptimer_over); - -int get_gptimer_run(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->run) & trun_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_run); - -uint32_t get_gptimer_status(unsigned int group) -{ - tassert(group < BFIN_TIMER_NUM_GROUP); - return bfin_read(&group_regs[group]->data_ilat); -} -EXPORT_SYMBOL(get_gptimer_status); - -void set_gptimer_status(unsigned int group, uint32_t value) -{ - tassert(group < BFIN_TIMER_NUM_GROUP); - bfin_write(&group_regs[group]->data_ilat, value); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_status); -#else -uint32_t get_gptimer_status(unsigned int group) -{ - tassert(group < BFIN_TIMER_NUM_GROUP); - return bfin_read(&group_regs[group]->status); -} -EXPORT_SYMBOL(get_gptimer_status); - -void set_gptimer_status(unsigned int group, uint32_t value) -{ - tassert(group < BFIN_TIMER_NUM_GROUP); - bfin_write(&group_regs[group]->status, value); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_status); - -static uint32_t read_gptimer_status(unsigned int timer_id) -{ - return bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status); -} - -int get_gptimer_intr(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(read_gptimer_status(timer_id) & timil_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_intr); - -void clear_gptimer_intr(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status, timil_mask[timer_id]); -} -EXPORT_SYMBOL(clear_gptimer_intr); - -int get_gptimer_over(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(read_gptimer_status(timer_id) & tovf_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_over); - -void clear_gptimer_over(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status, tovf_mask[timer_id]); -} -EXPORT_SYMBOL(clear_gptimer_over); - -int get_gptimer_run(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return !!(read_gptimer_status(timer_id) & trun_mask[timer_id]); -} -EXPORT_SYMBOL(get_gptimer_run); -#endif - -void set_gptimer_config(unsigned int timer_id, uint16_t config) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write(&timer_regs[timer_id]->config, config); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_config); - -uint16_t get_gptimer_config(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - return bfin_read(&timer_regs[timer_id]->config); -} -EXPORT_SYMBOL(get_gptimer_config); - -void enable_gptimers(uint16_t mask) -{ - int i; -#ifdef CONFIG_BF60x - uint16_t imask; - imask = bfin_read16(TIMER_DATA_IMSK); - imask &= ~mask; - bfin_write16(TIMER_DATA_IMSK, imask); -#endif - tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0); - for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) { - bfin_write(&group_regs[i]->enable, mask & 0xFF); - mask >>= 8; - } - SSYNC(); -} -EXPORT_SYMBOL(enable_gptimers); - -static void _disable_gptimers(uint16_t mask) -{ - int i; - uint16_t m = mask; - tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0); - for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) { - bfin_write(&group_regs[i]->disable, m & 0xFF); - m >>= 8; - } -} - -void disable_gptimers(uint16_t mask) -{ -#ifndef CONFIG_BF60x - int i; - _disable_gptimers(mask); - for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i) - if (mask & (1 << i)) - bfin_write(&group_regs[BFIN_TIMER_OCTET(i)]->status, trun_mask[i]); - SSYNC(); -#else - _disable_gptimers(mask); -#endif -} -EXPORT_SYMBOL(disable_gptimers); - -void disable_gptimers_sync(uint16_t mask) -{ - _disable_gptimers(mask); - SSYNC(); -} -EXPORT_SYMBOL(disable_gptimers_sync); - -void set_gptimer_pulse_hi(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write_or(&timer_regs[timer_id]->config, TIMER_PULSE_HI); - SSYNC(); -} -EXPORT_SYMBOL(set_gptimer_pulse_hi); - -void clear_gptimer_pulse_hi(unsigned int timer_id) -{ - tassert(timer_id < MAX_BLACKFIN_GPTIMERS); - bfin_write_and(&timer_regs[timer_id]->config, ~TIMER_PULSE_HI); - SSYNC(); -} -EXPORT_SYMBOL(clear_gptimer_pulse_hi); - -uint16_t get_enabled_gptimers(void) -{ - int i; - uint16_t result = 0; - for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) - result |= (bfin_read(&group_regs[i]->enable) << (i << 3)); - return result; -} -EXPORT_SYMBOL(get_enabled_gptimers); - -MODULE_AUTHOR("Axel Weiss (awe@aglaia-gmbh.de)"); -MODULE_DESCRIPTION("Blackfin General Purpose Timers API"); -MODULE_LICENSE("GPL"); |