diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap1/Makefile | 8 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-h2.c | 32 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-h3.c | 32 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 33 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-h2p2-debug.c | 166 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-innovator.c | 98 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-osk.c | 113 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds.c | 69 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/time.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/timer32k.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/debug-leds.c | 293 |
13 files changed, 165 insertions, 687 deletions
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile index 398e9e53e189..cd169c386161 100644 --- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -61,14 +61,6 @@ obj-$(CONFIG_ARCH_OMAP850) += gpio7xx.o obj-$(CONFIG_ARCH_OMAP15XX) += gpio15xx.o obj-$(CONFIG_ARCH_OMAP16XX) += gpio16xx.o -# LEDs support -led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o -led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o -led-$(CONFIG_MACH_OMAP_INNOVATOR) += leds-innovator.o -led-$(CONFIG_MACH_OMAP_PERSEUS2) += leds-h2p2-debug.o -led-$(CONFIG_MACH_OMAP_OSK) += leds-osk.o -obj-$(CONFIG_LEDS) += $(led-y) - ifneq ($(CONFIG_FB_OMAP),) obj-y += lcd_dma.o endif diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c index a28e989a63f4..bf88046ad73f 100644 --- a/arch/arm/mach-omap1/board-h2.c +++ b/arch/arm/mach-omap1/board-h2.c @@ -31,6 +31,7 @@ #include <linux/i2c/tps65010.h> #include <linux/smc91x.h> #include <linux/omapfb.h> +#include <linux/leds.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -306,12 +307,39 @@ static struct platform_device h2_irda_device = { .resource = h2_irda_resources, }; +static struct gpio_led h2_gpio_led_pins[] = { + { + .name = "h2:red", + .default_trigger = "heartbeat", + .gpio = 3, + }, + { + .name = "h2:green", + .default_trigger = "cpu0", + .gpio = OMAP_MPUIO(4), + }, +}; + +static struct gpio_led_platform_data h2_gpio_led_data = { + .leds = h2_gpio_led_pins, + .num_leds = ARRAY_SIZE(h2_gpio_led_pins), +}; + +static struct platform_device h2_gpio_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &h2_gpio_led_data, + }, +}; + static struct platform_device *h2_devices[] __initdata = { &h2_nor_device, &h2_nand_device, &h2_smc91x_device, &h2_irda_device, &h2_kp_device, + &h2_gpio_leds, }; static void __init h2_init_smc91x(void) @@ -406,6 +434,10 @@ static void __init h2_init(void) omap_cfg_reg(E19_1610_KBR4); omap_cfg_reg(N19_1610_KBR5); + /* GPIO based LEDs */ + omap_cfg_reg(P18_1610_GPIO3); + omap_cfg_reg(MPUIO4); + h2_smc91x_resources[1].start = gpio_to_irq(0); h2_smc91x_resources[1].end = gpio_to_irq(0); platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices)); diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index 108a8640fc6f..c6ec9b42ca29 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -31,6 +31,7 @@ #include <linux/i2c/tps65010.h> #include <linux/smc91x.h> #include <linux/omapfb.h> +#include <linux/leds.h> #include <asm/setup.h> #include <asm/page.h> @@ -324,6 +325,32 @@ static struct spi_board_info h3_spi_board_info[] __initdata = { }, }; +static struct gpio_led h3_gpio_led_pins[] = { + { + .name = "h3:red", + .default_trigger = "heartbeat", + .gpio = 3, + }, + { + .name = "h3:green", + .default_trigger = "cpu0", + .gpio = OMAP_MPUIO(4), + }, +}; + +static struct gpio_led_platform_data h3_gpio_led_data = { + .leds = h3_gpio_led_pins, + .num_leds = ARRAY_SIZE(h3_gpio_led_pins), +}; + +static struct platform_device h3_gpio_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &h3_gpio_led_data, + }, +}; + static struct platform_device *devices[] __initdata = { &nor_device, &nand_device, @@ -331,6 +358,7 @@ static struct platform_device *devices[] __initdata = { &intlat_device, &h3_kp_device, &h3_lcd_device, + &h3_gpio_leds, }; static struct omap_usb_config h3_usb_config __initdata = { @@ -398,6 +426,10 @@ static void __init h3_init(void) omap_cfg_reg(E19_1610_KBR4); omap_cfg_reg(N19_1610_KBR5); + /* GPIO based LEDs */ + omap_cfg_reg(P18_1610_GPIO3); + omap_cfg_reg(MPUIO4); + smc91x_resources[1].start = gpio_to_irq(40); smc91x_resources[1].end = gpio_to_irq(40); platform_add_devices(devices, ARRAY_SIZE(devices)); diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index da8d872d3d1c..043412c6ce0e 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -380,10 +380,37 @@ static struct platform_device osk5912_lcd_device = { .id = -1, }; +static struct gpio_led mistral_gpio_led_pins[] = { + { + .name = "mistral:red", + .default_trigger = "heartbeat", + .gpio = 3, + }, + { + .name = "mistral:green", + .default_trigger = "cpu0", + .gpio = OMAP_MPUIO(4), + }, +}; + +static struct gpio_led_platform_data mistral_gpio_led_data = { + .leds = mistral_gpio_led_pins, + .num_leds = ARRAY_SIZE(mistral_gpio_led_pins), +}; + +static struct platform_device mistral_gpio_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &mistral_gpio_led_data, + }, +}; + static struct platform_device *mistral_devices[] __initdata = { &osk5912_kp_device, &mistral_bl_device, &osk5912_lcd_device, + &mistral_gpio_leds, }; static int mistral_get_pendown_state(void) @@ -508,6 +535,12 @@ static void __init osk_mistral_init(void) if (gpio_request(2, "lcd_pwr") == 0) gpio_direction_output(2, 1); + /* + * GPIO based LEDs + */ + omap_cfg_reg(P18_1610_GPIO3); + omap_cfg_reg(MPUIO4); + i2c_register_board_info(1, mistral_i2c_board_info, ARRAY_SIZE(mistral_i2c_board_info)); diff --git a/arch/arm/mach-omap1/leds-h2p2-debug.c b/arch/arm/mach-omap1/leds-h2p2-debug.c deleted file mode 100644 index f6b14a14a957..000000000000 --- a/arch/arm/mach-omap1/leds-h2p2-debug.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * linux/arch/arm/mach-omap1/leds-h2p2-debug.c - * - * Copyright 2003 by Texas Instruments Incorporated - * - * There are 16 LEDs on the debug board (all green); four may be used - * for logical 'green', 'amber', 'red', and 'blue' (after "claiming"). - * - * The "surfer" expansion board and H2 sample board also have two-color - * green+red LEDs (in parallel), used here for timer and idle indicators. - */ -#include <linux/gpio.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/sched.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <asm/leds.h> -#include <asm/mach-types.h> - -#include <plat/fpga.h> - -#include "leds.h" - - -#define GPIO_LED_RED 3 -#define GPIO_LED_GREEN OMAP_MPUIO(4) - - -#define LED_STATE_ENABLED 0x01 -#define LED_STATE_CLAIMED 0x02 -#define LED_TIMER_ON 0x04 - -#define GPIO_IDLE GPIO_LED_GREEN -#define GPIO_TIMER GPIO_LED_RED - - -void h2p2_dbg_leds_event(led_event_t evt) -{ - unsigned long flags; - - static struct h2p2_dbg_fpga __iomem *fpga; - static u16 led_state, hw_led_state; - - local_irq_save(flags); - - if (!(led_state & LED_STATE_ENABLED) && evt != led_start) - goto done; - - switch (evt) { - case led_start: - if (!fpga) - fpga = ioremap(H2P2_DBG_FPGA_START, - H2P2_DBG_FPGA_SIZE); - if (fpga) { - led_state |= LED_STATE_ENABLED; - __raw_writew(~0, &fpga->leds); - } - break; - - case led_stop: - case led_halted: - /* all leds off during suspend or shutdown */ - - if (! machine_is_omap_perseus2()) { - gpio_set_value(GPIO_TIMER, 0); - gpio_set_value(GPIO_IDLE, 0); - } - - __raw_writew(~0, &fpga->leds); - led_state &= ~LED_STATE_ENABLED; - if (evt == led_halted) { - iounmap(fpga); - fpga = NULL; - } - - goto done; - - case led_claim: - led_state |= LED_STATE_CLAIMED; - hw_led_state = 0; - break; - - case led_release: - led_state &= ~LED_STATE_CLAIMED; - break; - -#ifdef CONFIG_LEDS_TIMER - case led_timer: - led_state ^= LED_TIMER_ON; - - if (machine_is_omap_perseus2()) - hw_led_state ^= H2P2_DBG_FPGA_P2_LED_TIMER; - else { - gpio_set_value(GPIO_TIMER, led_state & LED_TIMER_ON); - goto done; - } - - break; -#endif - -#ifdef CONFIG_LEDS_CPU - case led_idle_start: - if (machine_is_omap_perseus2()) - hw_led_state |= H2P2_DBG_FPGA_P2_LED_IDLE; - else { - gpio_set_value(GPIO_IDLE, 1); - goto done; - } - - break; - - case led_idle_end: - if (machine_is_omap_perseus2()) - hw_led_state &= ~H2P2_DBG_FPGA_P2_LED_IDLE; - else { - gpio_set_value(GPIO_IDLE, 0); - goto done; - } - - break; -#endif - - case led_green_on: - hw_led_state |= H2P2_DBG_FPGA_LED_GREEN; - break; - case led_green_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_GREEN; - break; - - case led_amber_on: - hw_led_state |= H2P2_DBG_FPGA_LED_AMBER; - break; - case led_amber_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_AMBER; - break; - - case led_red_on: - hw_led_state |= H2P2_DBG_FPGA_LED_RED; - break; - case led_red_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_RED; - break; - - case led_blue_on: - hw_led_state |= H2P2_DBG_FPGA_LED_BLUE; - break; - case led_blue_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_BLUE; - break; - - default: - break; - } - - - /* - * Actually burn the LEDs - */ - if (led_state & LED_STATE_ENABLED) - __raw_writew(~hw_led_state, &fpga->leds); - -done: - local_irq_restore(flags); -} diff --git a/arch/arm/mach-omap1/leds-innovator.c b/arch/arm/mach-omap1/leds-innovator.c deleted file mode 100644 index 3a066ee8d02c..000000000000 --- a/arch/arm/mach-omap1/leds-innovator.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * linux/arch/arm/mach-omap1/leds-innovator.c - */ -#include <linux/init.h> - -#include <mach/hardware.h> -#include <asm/leds.h> - -#include "leds.h" - - -#define LED_STATE_ENABLED 1 -#define LED_STATE_CLAIMED 2 - -static unsigned int led_state; -static unsigned int hw_led_state; - -void innovator_leds_event(led_event_t evt) -{ - unsigned long flags; - - local_irq_save(flags); - - switch (evt) { - case led_start: - hw_led_state = 0; - led_state = LED_STATE_ENABLED; - break; - - case led_stop: - led_state &= ~LED_STATE_ENABLED; - hw_led_state = 0; - break; - - case led_claim: - led_state |= LED_STATE_CLAIMED; - hw_led_state = 0; - break; - - case led_release: - led_state &= ~LED_STATE_CLAIMED; - hw_led_state = 0; - break; - -#ifdef CONFIG_LEDS_TIMER - case led_timer: - if (!(led_state & LED_STATE_CLAIMED)) - hw_led_state ^= 0; - break; -#endif - -#ifdef CONFIG_LEDS_CPU - case led_idle_start: - if (!(led_state & LED_STATE_CLAIMED)) - hw_led_state |= 0; - break; - - case led_idle_end: - if (!(led_state & LED_STATE_CLAIMED)) - hw_led_state &= ~0; - break; -#endif - - case led_halted: - break; - - case led_green_on: - if (led_state & LED_STATE_CLAIMED) - hw_led_state &= ~0; - break; - - case led_green_off: - if (led_state & LED_STATE_CLAIMED) - hw_led_state |= 0; - break; - - case led_amber_on: - break; - - case led_amber_off: - break; - - case led_red_on: - if (led_state & LED_STATE_CLAIMED) - hw_led_state &= ~0; - break; - - case led_red_off: - if (led_state & LED_STATE_CLAIMED) - hw_led_state |= 0; - break; - - default: - break; - } - - local_irq_restore(flags); -} diff --git a/arch/arm/mach-omap1/leds-osk.c b/arch/arm/mach-omap1/leds-osk.c deleted file mode 100644 index 936ed426b84f..000000000000 --- a/arch/arm/mach-omap1/leds-osk.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * linux/arch/arm/mach-omap1/leds-osk.c - * - * LED driver for OSK with optional Mistral QVGA board - */ -#include <linux/gpio.h> -#include <linux/init.h> - -#include <mach/hardware.h> -#include <asm/leds.h> - -#include "leds.h" - - -#define LED_STATE_ENABLED (1 << 0) -#define LED_STATE_CLAIMED (1 << 1) -static u8 led_state; - -#define TIMER_LED (1 << 3) /* Mistral board */ -#define IDLE_LED (1 << 4) /* Mistral board */ -static u8 hw_led_state; - - -#ifdef CONFIG_OMAP_OSK_MISTRAL - -/* For now, all system indicators require the Mistral board, since that - * LED can be manipulated without a task context. This LED is either red, - * or green, but not both; it can't give the full "disco led" effect. - */ - -#define GPIO_LED_RED 3 -#define GPIO_LED_GREEN OMAP_MPUIO(4) - -static void mistral_setled(void) -{ - int red = 0; - int green = 0; - - if (hw_led_state & TIMER_LED) - red = 1; - else if (hw_led_state & IDLE_LED) - green = 1; - /* else both sides are disabled */ - - gpio_set_value(GPIO_LED_GREEN, green); - gpio_set_value(GPIO_LED_RED, red); -} - -#endif - -void osk_leds_event(led_event_t evt) -{ - unsigned long flags; - u16 leds; - - local_irq_save(flags); - - if (!(led_state & LED_STATE_ENABLED) && evt != led_start) - goto done; - - leds = hw_led_state; - switch (evt) { - case led_start: - led_state |= LED_STATE_ENABLED; - hw_led_state = 0; - leds = ~0; - break; - - case led_halted: - case led_stop: - led_state &= ~LED_STATE_ENABLED; - hw_led_state = 0; - break; - - case led_claim: - led_state |= LED_STATE_CLAIMED; - hw_led_state = 0; - leds = ~0; - break; - - case led_release: - led_state &= ~LED_STATE_CLAIMED; - hw_led_state = 0; - break; - -#ifdef CONFIG_OMAP_OSK_MISTRAL - - case led_timer: - hw_led_state ^= TIMER_LED; - mistral_setled(); - break; - - case led_idle_start: /* idle == off */ - hw_led_state &= ~IDLE_LED; - mistral_setled(); - break; - - case led_idle_end: - hw_led_state |= IDLE_LED; - mistral_setled(); - break; - -#endif /* CONFIG_OMAP_OSK_MISTRAL */ - - default: - break; - } - - leds ^= hw_led_state; - -done: - local_irq_restore(flags); -} diff --git a/arch/arm/mach-omap1/leds.c b/arch/arm/mach-omap1/leds.c deleted file mode 100644 index ae6dd93b8ddc..000000000000 --- a/arch/arm/mach-omap1/leds.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * linux/arch/arm/mach-omap1/leds.c - * - * OMAP LEDs dispatcher - */ -#include <linux/gpio.h> -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/leds.h> -#include <asm/mach-types.h> - -#include <plat/mux.h> - -#include "leds.h" - -static int __init -omap_leds_init(void) -{ - if (!cpu_class_is_omap1()) - return -ENODEV; - - if (machine_is_omap_innovator()) - leds_event = innovator_leds_event; - - else if (machine_is_omap_h2() - || machine_is_omap_h3() - || machine_is_omap_perseus2()) - leds_event = h2p2_dbg_leds_event; - - else if (machine_is_omap_osk()) - leds_event = osk_leds_event; - - else - return -1; - - if (machine_is_omap_h2() - || machine_is_omap_h3() -#ifdef CONFIG_OMAP_OSK_MISTRAL - || machine_is_omap_osk() -#endif - ) { - - /* LED1/LED2 pins can be used as GPIO (as done here), or by - * the LPG (works even in deep sleep!), to drive a bicolor - * LED on the H2 sample board, and another on the H2/P2 - * "surfer" expansion board. - * - * The same pins drive a LED on the OSK Mistral board, but - * that's a different kind of LED (just one color at a time). - */ - omap_cfg_reg(P18_1610_GPIO3); - if (gpio_request(3, "LED red") == 0) - gpio_direction_output(3, 1); - else - printk(KERN_WARNING "LED: can't get GPIO3/red?\n"); - - omap_cfg_reg(MPUIO4); - if (gpio_request(OMAP_MPUIO(4), "LED green") == 0) - gpio_direction_output(OMAP_MPUIO(4), 1); - else - printk(KERN_WARNING "LED: can't get MPUIO4/green?\n"); - } - - leds_event(led_start); - return 0; -} - -__initcall(omap_leds_init); diff --git a/arch/arm/mach-omap1/leds.h b/arch/arm/mach-omap1/leds.h deleted file mode 100644 index a1e9fedc376c..000000000000 --- a/arch/arm/mach-omap1/leds.h +++ /dev/null @@ -1,3 +0,0 @@ -extern void innovator_leds_event(led_event_t evt); -extern void h2p2_dbg_leds_event(led_event_t evt); -extern void osk_leds_event(led_event_t evt); diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c index 4062480bfec7..4d4816fd6fc9 100644 --- a/arch/arm/mach-omap1/time.c +++ b/arch/arm/mach-omap1/time.c @@ -44,7 +44,6 @@ #include <linux/clockchips.h> #include <linux/io.h> -#include <asm/leds.h> #include <asm/irq.h> #include <asm/sched_clock.h> diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c index eae49c3980c9..74529549130c 100644 --- a/arch/arm/mach-omap1/timer32k.c +++ b/arch/arm/mach-omap1/timer32k.c @@ -46,7 +46,6 @@ #include <linux/clockchips.h> #include <linux/io.h> -#include <asm/leds.h> #include <asm/irq.h> #include <asm/mach/irq.h> #include <asm/mach/time.h> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index ad95c7a5d009..aa8e66857edd 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -41,9 +41,8 @@ config OMAP_DEBUG_DEVICES For debug cards on TI reference boards. config OMAP_DEBUG_LEDS - bool + def_bool y if NEW_LEDS depends on OMAP_DEBUG_DEVICES - default y if LEDS_CLASS config OMAP_SMARTREFLEX bool "SmartReflex support" diff --git a/arch/arm/plat-omap/debug-leds.c b/arch/arm/plat-omap/debug-leds.c index 39407cbe34c6..24e23f3dd6a8 100644 --- a/arch/arm/plat-omap/debug-leds.c +++ b/arch/arm/plat-omap/debug-leds.c @@ -1,279 +1,118 @@ /* * linux/arch/arm/plat-omap/debug-leds.c * + * Copyright 2011 by Bryan Wu <bryan.wu@canonical.com> * Copyright 2003 by Texas Instruments Incorporated * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/gpio.h> + +#include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <linux/io.h> +#include <linux/slab.h> #include <mach/hardware.h> -#include <asm/leds.h> #include <asm/mach-types.h> #include <plat/fpga.h> - /* Many OMAP development platforms reuse the same "debug board"; these * platforms include H2, H3, H4, and Perseus2. There are 16 LEDs on the * debug board (all green), accessed through FPGA registers. - * - * The "surfer" expansion board and H2 sample board also have two-color - * green+red LEDs (in parallel), used here for timer and idle indicators - * in preference to the ones on the debug board, for a "Disco LED" effect. - * - * This driver exports either the original ARM LED API, the new generic - * one, or both. - */ - -static spinlock_t lock; -static struct h2p2_dbg_fpga __iomem *fpga; -static u16 led_state, hw_led_state; - - -#ifdef CONFIG_OMAP_DEBUG_LEDS -#define new_led_api() 1 -#else -#define new_led_api() 0 -#endif - - -/*-------------------------------------------------------------------------*/ - -/* original ARM debug LED API: - * - timer and idle leds (some boards use non-FPGA leds here); - * - up to 4 generic leds, easily accessed in-kernel (any context) */ -#define GPIO_LED_RED 3 -#define GPIO_LED_GREEN OMAP_MPUIO(4) - -#define LED_STATE_ENABLED 0x01 -#define LED_STATE_CLAIMED 0x02 -#define LED_TIMER_ON 0x04 - -#define GPIO_IDLE GPIO_LED_GREEN -#define GPIO_TIMER GPIO_LED_RED - -static void h2p2_dbg_leds_event(led_event_t evt) -{ - unsigned long flags; - - spin_lock_irqsave(&lock, flags); - - if (!(led_state & LED_STATE_ENABLED) && evt != led_start) - goto done; - - switch (evt) { - case led_start: - if (fpga) - led_state |= LED_STATE_ENABLED; - break; - - case led_stop: - case led_halted: - /* all leds off during suspend or shutdown */ - - if (!(machine_is_omap_perseus2() || machine_is_omap_h4())) { - gpio_set_value(GPIO_TIMER, 0); - gpio_set_value(GPIO_IDLE, 0); - } - - __raw_writew(~0, &fpga->leds); - led_state &= ~LED_STATE_ENABLED; - goto done; - - case led_claim: - led_state |= LED_STATE_CLAIMED; - hw_led_state = 0; - break; - - case led_release: - led_state &= ~LED_STATE_CLAIMED; - break; - -#ifdef CONFIG_LEDS_TIMER - case led_timer: - led_state ^= LED_TIMER_ON; - - if (machine_is_omap_perseus2() || machine_is_omap_h4()) - hw_led_state ^= H2P2_DBG_FPGA_P2_LED_TIMER; - else { - gpio_set_value(GPIO_TIMER, - led_state & LED_TIMER_ON); - goto done; - } - - break; -#endif - -#ifdef CONFIG_LEDS_CPU - /* LED lit iff busy */ - case led_idle_start: - if (machine_is_omap_perseus2() || machine_is_omap_h4()) - hw_led_state &= ~H2P2_DBG_FPGA_P2_LED_IDLE; - else { - gpio_set_value(GPIO_IDLE, 1); - goto done; - } - - break; +static struct h2p2_dbg_fpga __iomem *fpga; - case led_idle_end: - if (machine_is_omap_perseus2() || machine_is_omap_h4()) - hw_led_state |= H2P2_DBG_FPGA_P2_LED_IDLE; - else { - gpio_set_value(GPIO_IDLE, 0); - goto done; - } - - break; -#endif - - case led_green_on: - hw_led_state |= H2P2_DBG_FPGA_LED_GREEN; - break; - case led_green_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_GREEN; - break; - - case led_amber_on: - hw_led_state |= H2P2_DBG_FPGA_LED_AMBER; - break; - case led_amber_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_AMBER; - break; - - case led_red_on: - hw_led_state |= H2P2_DBG_FPGA_LED_RED; - break; - case led_red_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_RED; - break; - - case led_blue_on: - hw_led_state |= H2P2_DBG_FPGA_LED_BLUE; - break; - case led_blue_off: - hw_led_state &= ~H2P2_DBG_FPGA_LED_BLUE; - break; - - default: - break; - } - - - /* - * Actually burn the LEDs - */ - if (led_state & LED_STATE_ENABLED) - __raw_writew(~hw_led_state, &fpga->leds); - -done: - spin_unlock_irqrestore(&lock, flags); -} - -/*-------------------------------------------------------------------------*/ - -/* "new" LED API - * - with syfs access and generic triggering - * - not readily accessible to in-kernel drivers - */ +static u16 fpga_led_state; struct dbg_led { struct led_classdev cdev; u16 mask; }; -static struct dbg_led dbg_leds[] = { - /* REVISIT at least H2 uses different timer & cpu leds... */ -#ifndef CONFIG_LEDS_TIMER - { .mask = 1 << 0, .cdev.name = "d4:green", - .cdev.default_trigger = "heartbeat", }, -#endif -#ifndef CONFIG_LEDS_CPU - { .mask = 1 << 1, .cdev.name = "d5:green", }, /* !idle */ -#endif - { .mask = 1 << 2, .cdev.name = "d6:green", }, - { .mask = 1 << 3, .cdev.name = "d7:green", }, - - { .mask = 1 << 4, .cdev.name = "d8:green", }, - { .mask = 1 << 5, .cdev.name = "d9:green", }, - { .mask = 1 << 6, .cdev.name = "d10:green", }, - { .mask = 1 << 7, .cdev.name = "d11:green", }, - - { .mask = 1 << 8, .cdev.name = "d12:green", }, - { .mask = 1 << 9, .cdev.name = "d13:green", }, - { .mask = 1 << 10, .cdev.name = "d14:green", }, - { .mask = 1 << 11, .cdev.name = "d15:green", }, - -#ifndef CONFIG_LEDS - { .mask = 1 << 12, .cdev.name = "d16:green", }, - { .mask = 1 << 13, .cdev.name = "d17:green", }, - { .mask = 1 << 14, .cdev.name = "d18:green", }, - { .mask = 1 << 15, .cdev.name = "d19:green", }, -#endif +static const struct { + const char *name; + const char *trigger; +} dbg_leds[] = { + { "dbg:d4", "heartbeat", }, + { "dbg:d5", "cpu0", }, + { "dbg:d6", "default-on", }, + { "dbg:d7", }, + { "dbg:d8", }, + { "dbg:d9", }, + { "dbg:d10", }, + { "dbg:d11", }, + { "dbg:d12", }, + { "dbg:d13", }, + { "dbg:d14", }, + { "dbg:d15", }, + { "dbg:d16", }, + { "dbg:d17", }, + { "dbg:d18", }, + { "dbg:d19", }, }; -static void -fpga_led_set(struct led_classdev *cdev, enum led_brightness value) +/* + * The triggers lines up below will only be used if the + * LED triggers are compiled in. + */ +static void dbg_led_set(struct led_classdev *cdev, + enum led_brightness b) { - struct dbg_led *led = container_of(cdev, struct dbg_led, cdev); - unsigned long flags; + struct dbg_led *led = container_of(cdev, struct dbg_led, cdev); + u16 reg; - spin_lock_irqsave(&lock, flags); - if (value == LED_OFF) - hw_led_state &= ~led->mask; + reg = __raw_readw(&fpga->leds); + if (b != LED_OFF) + reg |= led->mask; else - hw_led_state |= led->mask; - __raw_writew(~hw_led_state, &fpga->leds); - spin_unlock_irqrestore(&lock, flags); + reg &= ~led->mask; + __raw_writew(reg, &fpga->leds); } -static void __init newled_init(struct device *dev) +static enum led_brightness dbg_led_get(struct led_classdev *cdev) { - unsigned i; - struct dbg_led *led; - int status; + struct dbg_led *led = container_of(cdev, struct dbg_led, cdev); + u16 reg; - for (i = 0, led = dbg_leds; i < ARRAY_SIZE(dbg_leds); i++, led++) { - led->cdev.brightness_set = fpga_led_set; - status = led_classdev_register(dev, &led->cdev); - if (status < 0) - break; - } - return; + reg = __raw_readw(&fpga->leds); + return (reg & led->mask) ? LED_FULL : LED_OFF; } - -/*-------------------------------------------------------------------------*/ - -static int /* __init */ fpga_probe(struct platform_device *pdev) +static int fpga_probe(struct platform_device *pdev) { struct resource *iomem; - - spin_lock_init(&lock); + int i; iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!iomem) return -ENODEV; fpga = ioremap(iomem->start, H2P2_DBG_FPGA_SIZE); - __raw_writew(~0, &fpga->leds); + __raw_writew(0xff, &fpga->leds); + + for (i = 0; i < ARRAY_SIZE(dbg_leds); i++) { + struct dbg_led *led; + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (!led) + break; -#ifdef CONFIG_LEDS - leds_event = h2p2_dbg_leds_event; - leds_event(led_start); -#endif + led->cdev.name = dbg_leds[i].name; + led->cdev.brightness_set = dbg_led_set; + led->cdev.brightness_get = dbg_led_get; + led->cdev.default_trigger = dbg_leds[i].trigger; + led->mask = BIT(i); - if (new_led_api()) { - newled_init(&pdev->dev); + if (led_classdev_register(NULL, &led->cdev) < 0) { + kfree(led); + break; + } } return 0; @@ -281,13 +120,15 @@ static int /* __init */ fpga_probe(struct platform_device *pdev) static int fpga_suspend_noirq(struct device *dev) { - __raw_writew(~0, &fpga->leds); + fpga_led_state = __raw_readw(&fpga->leds); + __raw_writew(0xff, &fpga->leds); + return 0; } static int fpga_resume_noirq(struct device *dev) { - __raw_writew(~hw_led_state, &fpga->leds); + __raw_writew(~fpga_led_state, &fpga->leds); return 0; } |
