diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/blackfin/Kconfig | 10 | ||||
| -rw-r--r-- | arch/blackfin/Makefile | 15 | ||||
| -rw-r--r-- | arch/blackfin/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/blackfin/kernel/gptimers.c | 250 | ||||
| -rw-r--r-- | include/asm-blackfin/bf5xx_timers.h | 209 | ||||
| -rw-r--r-- | include/asm-blackfin/gptimers.h | 210 |
6 files changed, 484 insertions, 211 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 178305350993..7888551ed939 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -788,6 +788,16 @@ config LARGE_ALLOCS a lot of RAM, and you need to able to allocate very large contiguous chunks. If unsure, say N. +config BFIN_GPTIMERS + tristate "Enable Blackfin General Purpose Timers API" + default n + help + Enable support for the General Purpose Timers API. If you + are unsure, say N. + + To compile this driver as a module, choose M here: the module + will be called gptimers.ko. + config BFIN_DMA_5XX bool "Enable DMA Support" depends on (BF52x || BF53x || BF561 || BF54x) diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index 4a208f30f5c4..3c87291bcdab 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -105,12 +105,23 @@ archclean: $(Q)$(MAKE) $(clean)=$(boot) -all: vmImage boot := arch/$(ARCH)/boot BOOT_TARGETS = vmImage -.PHONY: $(BOOT_TARGETS) +PHONY += $(BOOT_TARGETS) install +KBUILD_IMAGE := $(boot)/vmImage + +all: vmImage + $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +install: + $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install + define archhelp echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)' + echo ' install - Install kernel using' + echo ' (your) ~/bin/$(CROSS_COMPILE)installkernel or' + echo ' (distribution) PATH: $(CROSS_COMPILE)installkernel or' + echo ' install to $$(INSTALL_PATH)' endef diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile index 8aeb6066b19b..8a4cfb293b27 100644 --- a/arch/blackfin/kernel/Makefile +++ b/arch/blackfin/kernel/Makefile @@ -9,6 +9,7 @@ obj-y := \ sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \ fixed_code.o cplbinit.o cacheinit.o reboot.o bfin_gpio.o +obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_BFIN_DMA_5XX) += bfin_dma_5xx.o obj-$(CONFIG_DUAL_CORE_TEST_MODULE) += dualcore_test.o diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c new file mode 100644 index 000000000000..cb7ba9bfc79c --- /dev/null +++ b/arch/blackfin/kernel/gptimers.c @@ -0,0 +1,250 @@ +/* + * bfin_gptimers.c - derived from bf53x_timers.c + * Driver for General Purpose Timer functions on the Blackfin processor + * + * 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 <asm/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 + +#define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1) + +typedef struct { + uint16_t config; + uint16_t __pad; + uint32_t counter; + uint32_t period; + uint32_t width; +} GPTIMER_timer_regs; + +typedef struct { + uint16_t enable; + uint16_t __pad0; + uint16_t disable; + uint16_t __pad1; + uint32_t status; +} GPTIMER_group_regs; + +static volatile GPTIMER_timer_regs *const timer_regs[MAX_BLACKFIN_GPTIMERS] = +{ + (GPTIMER_timer_regs *)TIMER0_CONFIG, + (GPTIMER_timer_regs *)TIMER1_CONFIG, + (GPTIMER_timer_regs *)TIMER2_CONFIG, +#if (MAX_BLACKFIN_GPTIMERS > 3) + (GPTIMER_timer_regs *)TIMER3_CONFIG, + (GPTIMER_timer_regs *)TIMER4_CONFIG, + (GPTIMER_timer_regs *)TIMER5_CONFIG, + (GPTIMER_timer_regs *)TIMER6_CONFIG, + (GPTIMER_timer_regs *)TIMER7_CONFIG, +#endif +#if (MAX_BLACKFIN_GPTIMERS > 8) + (GPTIMER_timer_regs *)TIMER8_CONFIG, + (GPTIMER_timer_regs *)TIMER9_CONFIG, + (GPTIMER_timer_regs *)TIMER10_CONFIG, + (GPTIMER_timer_regs *)TIMER11_CONFIG, +#endif +}; + +static volatile GPTIMER_group_regs *const group_regs[BFIN_TIMER_NUM_GROUP] = +{ + (GPTIMER_group_regs *)TIMER0_GROUP_REG, +#if (MAX_BLACKFIN_GPTIMERS > 8) + (GPTIMER_group_regs *)TIMER8_GROUP_REG, +#endif +}; + +static uint32_t const dis_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, +#endif +#if (MAX_BLACKFIN_GPTIMERS > 8) + TIMER_STATUS_TRUN8, + TIMER_STATUS_TRUN9, + TIMER_STATUS_TRUN10, + TIMER_STATUS_TRUN11, +#endif +}; + +static uint32_t const irq_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, +#endif +#if (MAX_BLACKFIN_GPTIMERS > 8) + TIMER_STATUS_TIMIL8, + TIMER_STATUS_TIMIL9, + TIMER_STATUS_TIMIL10, + TIMER_STATUS_TIMIL11, +#endif +}; + +void set_gptimer_pwidth(int timer_id, uint32_t value) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + timer_regs[timer_id]->width = value; + SSYNC(); +} +EXPORT_SYMBOL(set_gptimer_pwidth); + +uint32_t get_gptimer_pwidth(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return timer_regs[timer_id]->width; +} +EXPORT_SYMBOL(get_gptimer_pwidth); + +void set_gptimer_period(int timer_id, uint32_t period) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + timer_regs[timer_id]->period = period; + SSYNC(); +} +EXPORT_SYMBOL(set_gptimer_period); + +uint32_t get_gptimer_period(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return timer_regs[timer_id]->period; +} +EXPORT_SYMBOL(get_gptimer_period); + +uint32_t get_gptimer_count(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return timer_regs[timer_id]->counter; +} +EXPORT_SYMBOL(get_gptimer_count); + +uint32_t get_gptimer_status(int group) +{ + tassert(group < BFIN_TIMER_NUM_GROUP); + return group_regs[group]->status; +} +EXPORT_SYMBOL(get_gptimer_status); + +void set_gptimer_status(int group, uint32_t value) +{ + tassert(group < BFIN_TIMER_NUM_GROUP); + group_regs[group]->status = value; + SSYNC(); +} +EXPORT_SYMBOL(set_gptimer_status); + +uint16_t get_gptimer_intr(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return (group_regs[BFIN_TIMER_OCTET(timer_id)]->status & irq_mask[timer_id]) ? 1 : 0; +} +EXPORT_SYMBOL(get_gptimer_intr); + +void clear_gptimer_intr(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + group_regs[BFIN_TIMER_OCTET(timer_id)]->status = irq_mask[timer_id]; +} +EXPORT_SYMBOL(clear_gptimer_intr); + +void set_gptimer_config(int timer_id, uint16_t config) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + timer_regs[timer_id]->config = config; + SSYNC(); +} +EXPORT_SYMBOL(set_gptimer_config); + +uint16_t get_gptimer_config(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + return timer_regs[timer_id]->config; +} +EXPORT_SYMBOL(get_gptimer_config); + +void enable_gptimers(uint16_t mask) +{ + int i; + tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0); + for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) { + group_regs[i]->enable = mask & 0xFF; + mask >>= 8; + } + SSYNC(); +} +EXPORT_SYMBOL(enable_gptimers); + +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) { + group_regs[i]->disable = m & 0xFF; + m >>= 8; + } + for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i) + if (mask & (1 << i)) + group_regs[BFIN_TIMER_OCTET(i)]->status |= dis_mask[i]; + SSYNC(); +} +EXPORT_SYMBOL(disable_gptimers); + +void set_gptimer_pulse_hi(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + timer_regs[timer_id]->config |= TIMER_PULSE_HI; + SSYNC(); +} +EXPORT_SYMBOL(set_gptimer_pulse_hi); + +void clear_gptimer_pulse_hi(int timer_id) +{ + tassert(timer_id < MAX_BLACKFIN_GPTIMERS); + 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 |= (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"); diff --git a/include/asm-blackfin/bf5xx_timers.h b/include/asm-blackfin/bf5xx_timers.h deleted file mode 100644 index 8e8246f32fec..000000000000 --- a/include/asm-blackfin/bf5xx_timers.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * include/asm/bf5xx_timers.h - * - * This file contains the major Data structures and constants - * used for General Purpose Timer Implementation in BF5xx - * - * Copyright (C) 2005 John DeHority - * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) - * - */ - -#ifndef _BLACKFIN_TIMERS_H_ -#define _BLACKFIN_TIMERS_H_ - -#undef MAX_BLACKFIN_GPTIMERS -/* - * BF537: 8 timers: - */ -#if defined(BF527_FAMILY) || defined(BF537_FAMILY) -# define MAX_BLACKFIN_GPTIMERS 8 -# define TIMER0_GROUP_REG TIMER_ENABLE -#endif -/* - * BF561: 12 timers: - */ -#if defined(CONFIG_BF561) -# define MAX_BLACKFIN_GPTIMERS 12 -# define TIMER0_GROUP_REG TMRS8_ENABLE -# define TIMER8_GROUP_REG TMRS4_ENABLE -#endif -/* - * All others: 3 timers: - */ -#if !defined(MAX_BLACKFIN_GPTIMERS) -# define MAX_BLACKFIN_GPTIMERS 3 -# define TIMER0_GROUP_REG TIMER_ENABLE -#endif - -#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1) -#define BFIN_TIMER_OCTET(x) ((x) >> 3) - -/* used in masks for timer_enable() and timer_disable() */ -#define TIMER0bit 0x0001 /* 0001b */ -#define TIMER1bit 0x0002 /* 0010b */ -#define TIMER2bit 0x0004 /* 0100b */ - -#if (MAX_BLACKFIN_GPTIMERS > 3) -# define TIMER3bit 0x0008 -# define TIMER4bit 0x0010 -# define TIMER5bit 0x0020 -# define TIMER6bit 0x0040 -# define TIMER7bit 0x0080 -#endif - -#if (MAX_BLACKFIN_GPTIMERS > 8) -# define TIMER8bit 0x0100 -# define TIMER9bit 0x0200 -# define TIMER10bit 0x0400 -# define TIMER11bit 0x0800 -#endif - -#define TIMER0_id 0 -#define TIMER1_id 1 -#define TIMER2_id 2 - -#if (MAX_BLACKFIN_GPTIMERS > 3) -# define TIMER3_id 3 -# define TIMER4_id 4 -# define TIMER5_id 5 -# define TIMER6_id 6 -# define TIMER7_id 7 -#endif - -#if (MAX_BLACKFIN_GPTIMERS > 8) -# define TIMER8_id 8 -# define TIMER9_id 9 -# define TIMER10_id 10 -# define TIMER11_id 11 -#endif - -/* associated timers for ppi framesync: */ - -#if defined(CONFIG_BF561) -# define FS0_1_TIMER_ID TIMER8_id -# define FS0_2_TIMER_ID TIMER9_id -# define FS1_1_TIMER_ID TIMER10_id -# define FS1_2_TIMER_ID TIMER11_id -# define FS0_1_TIMER_BIT TIMER8bit -# define FS0_2_TIMER_BIT TIMER9bit -# define FS1_1_TIMER_BIT TIMER10bit -# define FS1_2_TIMER_BIT TIMER11bit -# undef FS1_TIMER_ID -# undef FS2_TIMER_ID -# undef FS1_TIMER_BIT -# undef FS2_TIMER_BIT -#else -# define FS1_TIMER_ID TIMER0_id -# define FS2_TIMER_ID TIMER1_id -# define FS1_TIMER_BIT TIMER0bit -# define FS2_TIMER_BIT TIMER1bit -#endif - -/* -** Timer Configuration Register Bits -*/ -#define TIMER_ERR 0xC000 -#define TIMER_ERR_OVFL 0x4000 -#define TIMER_ERR_PROG_PER 0x8000 -#define TIMER_ERR_PROG_PW 0xC000 -#define TIMER_EMU_RUN 0x0200 -#define TIMER_TOGGLE_HI 0x0100 -#define TIMER_CLK_SEL 0x0080 -#define TIMER_OUT_DIS 0x0040 -#define TIMER_TIN_SEL 0x0020 -#define TIMER_IRQ_ENA 0x0010 -#define TIMER_PERIOD_CNT 0x0008 -#define TIMER_PULSE_HI 0x0004 -#define TIMER_MODE 0x0003 -#define TIMER_MODE_PWM 0x0001 -#define TIMER_MODE_WDTH 0x0002 -#define TIMER_MODE_EXT_CLK 0x0003 - -/* -** Timer Status Register Bits -*/ -#define TIMER_STATUS_TIMIL0 0x0001 -#define TIMER_STATUS_TIMIL1 0x0002 -#define TIMER_STATUS_TIMIL2 0x0004 -#if (MAX_BLACKFIN_GPTIMERS > 3) -# define TIMER_STATUS_TIMIL3 0x00000008 -# define TIMER_STATUS_TIMIL4 0x00010000 -# define TIMER_STATUS_TIMIL5 0x00020000 -# define TIMER_STATUS_TIMIL6 0x00040000 -# define TIMER_STATUS_TIMIL7 0x00080000 -# if (MAX_BLACKFIN_GPTIMERS > 8) -# define TIMER_STATUS_TIMIL8 0x0001 -# define TIMER_STATUS_TIMIL9 0x0002 -# define TIMER_STATUS_TIMIL10 0x0004 -# define TIMER_STATUS_TIMIL11 0x0008 -# endif -# define TIMER_STATUS_INTR 0x000F000F -#else -# define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */ -#endif - -#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */ -#define TIMER_STATUS_TOVF1 0x0020 -#define TIMER_STATUS_TOVF2 0x0040 -#if (MAX_BLACKFIN_GPTIMERS > 3) -# define TIMER_STATUS_TOVF3 0x00000080 -# define TIMER_STATUS_TOVF4 0x00100000 -# define TIMER_STATUS_TOVF5 0x00200000 -# define TIMER_STATUS_TOVF6 0x00400000 -# define TIMER_STATUS_TOVF7 0x00800000 -# if (MAX_BLACKFIN_GPTIMERS > 8) -# define TIMER_STATUS_TOVF8 0x0010 -# define TIMER_STATUS_TOVF9 0x0020 -# define TIMER_STATUS_TOVF10 0x0040 -# define TIMER_STATUS_TOVF11 0x0080 -# endif -# define TIMER_STATUS_OFLOW 0x00F000F0 -#else -# define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */ -#endif - -/* -** Timer Slave Enable Status : write 1 to clear -*/ -#define TIMER_STATUS_TRUN0 0x1000 -#define TIMER_STATUS_TRUN1 0x2000 -#define TIMER_STATUS_TRUN2 0x4000 -#if (MAX_BLACKFIN_GPTIMERS > 3) -# define TIMER_STATUS_TRUN3 0x00008000 -# define TIMER_STATUS_TRUN4 0x10000000 -# define TIMER_STATUS_TRUN5 0x20000000 -# define TIMER_STATUS_TRUN6 0x40000000 -# define TIMER_STATUS_TRUN7 0x80000000 -# define TIMER_STATUS_TRUN 0xF000F000 -# if (MAX_BLACKFIN_GPTIMERS > 8) -# define TIMER_STATUS_TRUN8 0x1000 -# define TIMER_STATUS_TRUN9 0x2000 -# define TIMER_STATUS_TRUN10 0x4000 -# define TIMER_STATUS_TRUN11 0x8000 -# endif -#else -# define TIMER_STATUS_TRUN 0x7000 -#endif - -/******************************************************************************* -* GP_TIMER API's -*******************************************************************************/ - -void set_gptimer_pwidth (int timer_id, int width); -int get_gptimer_pwidth (int timer_id); -void set_gptimer_period (int timer_id, int period); -int get_gptimer_period (int timer_id); -int get_gptimer_count (int timer_id); -short get_gptimer_intr (int timer_id); -void set_gptimer_config (int timer_id, short config); -short get_gptimer_config (int timer_id); -void set_gptimer_pulse_hi (int timer_id); -void clear_gptimer_pulse_hi(int timer_id); -void enable_gptimers (short mask); -void disable_gptimers (short mask); -short get_enabled_timers (void); -int get_gptimer_status (int octet); -void set_gptimer_status (int octet, int value); - -#endif diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h new file mode 100644 index 000000000000..c97ab03e43a6 --- /dev/null +++ b/include/asm-blackfin/gptimers.h @@ -0,0 +1,210 @@ +/* + * include/asm/bf5xx_timers.h + * + * This file contains the major Data structures and constants + * used for General Purpose Timer Implementation in BF5xx + * + * Copyright (C) 2005 John DeHority + * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) + * + */ + +#ifndef _BLACKFIN_TIMERS_H_ +#define _BLACKFIN_TIMERS_H_ + +#include <linux/types.h> +#include <asm/blackfin.h> + +/* + * BF537/BF527: 8 timers: + */ +#if defined(BF527_FAMILY) || defined(BF537_FAMILY) +# define MAX_BLACKFIN_GPTIMERS 8 +# define TIMER0_GROUP_REG TIMER_ENABLE +#endif +/* + * BF561: 12 timers: + */ +#if defined(CONFIG_BF561) +# define MAX_BLACKFIN_GPTIMERS 12 +# define TIMER0_GROUP_REG TMRS8_ENABLE +# define TIMER8_GROUP_REG TMRS4_ENABLE +#endif +/* + * All others: 3 timers: + */ +#if !defined(MAX_BLACKFIN_GPTIMERS) +# define MAX_BLACKFIN_GPTIMERS 3 +# define TIMER0_GROUP_REG TIMER_ENABLE +#endif + +#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1) +#define BFIN_TIMER_OCTET(x) ((x) >> 3) + +/* used in masks for timer_enable() and timer_disable() */ +#define TIMER0bit 0x0001 /* 0001b */ +#define TIMER1bit 0x0002 /* 0010b */ +#define TIMER2bit 0x0004 /* 0100b */ + +#if (MAX_BLACKFIN_GPTIMERS > 3) +# define TIMER3bit 0x0008 +# define TIMER4bit 0x0010 +# define TIMER5bit 0x0020 +# define TIMER6bit 0x0040 +# define TIMER7bit 0x0080 +#endif + +#if (MAX_BLACKFIN_GPTIMERS > 8) +# define TIMER8bit 0x0100 +# define TIMER9bit 0x0200 +# define TIMER10bit 0x0400 +# define TIMER11bit 0x0800 +#endif + +#define TIMER0_id 0 +#define TIMER1_id 1 +#define TIMER2_id 2 + +#if (MAX_BLACKFIN_GPTIMERS > 3) +# define TIMER3_id 3 +# define TIMER4_id 4 +# define TIMER5_id 5 +# define TIMER6_id 6 +# define TIMER7_id 7 +#endif + +#if (MAX_BLACKFIN_GPTIMERS > 8) +# define TIMER8_id 8 +# define TIMER9_id 9 +# define TIMER10_id 10 +# define TIMER11_id 11 +#endif + +/* associated timers for ppi framesync: */ + +#if defined(CONFIG_BF561) +# define FS0_1_TIMER_ID TIMER8_id +# define FS0_2_TIMER_ID TIMER9_id +# define FS1_1_TIMER_ID TIMER10_id +# define FS1_2_TIMER_ID TIMER11_id +# define FS0_1_TIMER_BIT TIMER8bit +# define FS0_2_TIMER_BIT TIMER9bit +# define FS1_1_TIMER_BIT TIMER10bit +# define FS1_2_TIMER_BIT TIMER11bit +# undef FS1_TIMER_ID +# undef FS2_TIMER_ID +# undef FS1_TIMER_BIT +# undef FS2_TIMER_BIT +#else +# define FS1_TIMER_ID TIMER0_id +# define FS2_TIMER_ID TIMER1_id +# define FS1_TIMER_BIT TIMER0bit +# define FS2_TIMER_BIT TIMER1bit +#endif + +/* + * Timer Configuration Register Bits + */ +#define TIMER_ERR 0xC000 +#define TIMER_ERR_OVFL 0x4000 +#define TIMER_ERR_PROG_PER 0x8000 +#define TIMER_ERR_PROG_PW 0xC000 +#define TIMER_EMU_RUN 0x0200 +#define TIMER_TOGGLE_HI 0x0100 +#define TIMER_CLK_SEL 0x0080 +#define TIMER_OUT_DIS 0x0040 +#define TIMER_TIN_SEL 0x0020 +#define TIMER_IRQ_ENA 0x0010 +#define TIMER_PERIOD_CNT 0x0008 +#define TIMER_PULSE_HI 0x0004 +#define TIMER_MODE 0x0003 +#define TIMER_MODE_PWM 0x0001 +#define TIMER_MODE_WDTH 0x0002 +#define TIMER_MODE_EXT_CLK 0x0003 + +/* + * Timer Status Register Bits + */ +#define TIMER_STATUS_TIMIL0 0x0001 +#define TIMER_STATUS_TIMIL1 0x0002 +#define TIMER_STATUS_TIMIL2 0x0004 +#if (MAX_BLACKFIN_GPTIMERS > 3) +# define TIMER_STATUS_TIMIL3 0x00000008 +# define TIMER_STATUS_TIMIL4 0x00010000 +# define TIMER_STATUS_TIMIL5 0x00020000 +# define TIMER_STATUS_TIMIL6 0x00040000 +# define TIMER_STATUS_TIMIL7 0x00080000 +# if (MAX_BLACKFIN_GPTIMERS > 8) +# define TIMER_STATUS_TIMIL8 0x0001 +# define TIMER_STATUS_TIMIL9 0x0002 +# define TIMER_STATUS_TIMIL10 0x0004 +# define TIMER_STATUS_TIMIL11 0x0008 +# endif +# define TIMER_STATUS_INTR 0x000F000F +#else +# define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */ +#endif + +#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */ +#define TIMER_STATUS_TOVF1 0x0020 +#define TIMER_STATUS_TOVF2 0x0040 +#if (MAX_BLACKFIN_GPTIMERS > 3) +# define TIMER_STATUS_TOVF3 0x00000080 +# define TIMER_STATUS_TOVF4 0x00100000 +# define TIMER_STATUS_TOVF5 0x00200000 +# define TIMER_STATUS_TOVF6 0x00400000 +# define TIMER_STATUS_TOVF7 0x00800000 +# if (MAX_BLACKFIN_GPTIMERS > 8) +# define TIMER_STATUS_TOVF8 0x0010 +# define TIMER_STATUS_TOVF9 0x0020 +# define TIMER_STATUS_TOVF10 0x0040 +# define TIMER_STATUS_TOVF11 0x0080 +# endif +# define TIMER_STATUS_OFLOW 0x00F000F0 +#else +# define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */ +#endif + +/* + * Timer Slave Enable Status : write 1 to clear + */ +#define TIMER_STATUS_TRUN0 0x1000 +#define TIMER_STATUS_TRUN1 0x2000 +#define TIMER_STATUS_TRUN2 0x4000 +#if (MAX_BLACKFIN_GPTIMERS > 3) +# define TIMER_STATUS_TRUN3 0x00008000 +# define TIMER_STATUS_TRUN4 0x10000000 +# define TIMER_STATUS_TRUN5 0x20000000 +# define TIMER_STATUS_TRUN6 0x40000000 +# define TIMER_STATUS_TRUN7 0x80000000 +# define TIMER_STATUS_TRUN 0xF000F000 +# if (MAX_BLACKFIN_GPTIMERS > 8) +# define TIMER_STATUS_TRUN8 0x1000 +# define TIMER_STATUS_TRUN9 0x2000 +# define TIMER_STATUS_TRUN10 0x4000 +# define TIMER_STATUS_TRUN11 0x8000 +# endif +#else +# define TIMER_STATUS_TRUN 0x7000 +#endif + +/* The actual gptimer API */ + +void set_gptimer_pwidth (int timer_id, uint32_t width); +uint32_t get_gptimer_pwidth (int timer_id); +void set_gptimer_period (int timer_id, uint32_t period); +uint32_t get_gptimer_period (int timer_id); +uint32_t get_gptimer_count (int timer_id); +uint16_t get_gptimer_intr (int timer_id); +void clear_gptimer_intr (int timer_id); +void set_gptimer_config (int timer_id, uint16_t config); +uint16_t get_gptimer_config (int timer_id); +void set_gptimer_pulse_hi (int timer_id); +void clear_gptimer_pulse_hi(int timer_id); +void enable_gptimers (uint16_t mask); +void disable_gptimers (uint16_t mask); +uint16_t get_enabled_gptimers (void); +uint32_t get_gptimer_status (int group); +void set_gptimer_status (int group, uint32_t value); + +#endif |