![Tony Lindgren](/assets/img/avatar_default.png)
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
318 lines
7 KiB
C
318 lines
7 KiB
C
/*
|
|
* linux/arch/arm/plat-omap/debug-leds.c
|
|
*
|
|
* 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/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/leds.h>
|
|
#include <asm/system.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <plat/fpga.h>
|
|
#include <mach/gpio.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_LEDS_OMAP_DEBUG
|
|
#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;
|
|
|
|
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
|
|
*/
|
|
|
|
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 void
|
|
fpga_led_set(struct led_classdev *cdev, enum led_brightness value)
|
|
{
|
|
struct dbg_led *led = container_of(cdev, struct dbg_led, cdev);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&lock, flags);
|
|
if (value == LED_OFF)
|
|
hw_led_state &= ~led->mask;
|
|
else
|
|
hw_led_state |= led->mask;
|
|
__raw_writew(~hw_led_state, &fpga->leds);
|
|
spin_unlock_irqrestore(&lock, flags);
|
|
}
|
|
|
|
static void __init newled_init(struct device *dev)
|
|
{
|
|
unsigned i;
|
|
struct dbg_led *led;
|
|
int status;
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int /* __init */ fpga_probe(struct platform_device *pdev)
|
|
{
|
|
struct resource *iomem;
|
|
|
|
spin_lock_init(&lock);
|
|
|
|
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);
|
|
|
|
#ifdef CONFIG_LEDS
|
|
leds_event = h2p2_dbg_leds_event;
|
|
leds_event(led_start);
|
|
#endif
|
|
|
|
if (new_led_api()) {
|
|
newled_init(&pdev->dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fpga_suspend_noirq(struct device *dev)
|
|
{
|
|
__raw_writew(~0, &fpga->leds);
|
|
return 0;
|
|
}
|
|
|
|
static int fpga_resume_noirq(struct device *dev)
|
|
{
|
|
__raw_writew(~hw_led_state, &fpga->leds);
|
|
return 0;
|
|
}
|
|
|
|
static struct dev_pm_ops fpga_dev_pm_ops = {
|
|
.suspend_noirq = fpga_suspend_noirq,
|
|
.resume_noirq = fpga_resume_noirq,
|
|
};
|
|
|
|
static struct platform_driver led_driver = {
|
|
.driver.name = "omap_dbg_led",
|
|
.driver.pm = &fpga_dev_pm_ops,
|
|
.probe = fpga_probe,
|
|
};
|
|
|
|
static int __init fpga_init(void)
|
|
{
|
|
if (machine_is_omap_h4()
|
|
|| machine_is_omap_h3()
|
|
|| machine_is_omap_h2()
|
|
|| machine_is_omap_perseus2()
|
|
)
|
|
return platform_driver_register(&led_driver);
|
|
return 0;
|
|
}
|
|
fs_initcall(fpga_init);
|