forked from luck/tmp_suning_uos_patched
9d56dd3b08
The old ctrl in/out routines are non-portable and unsuitable for cross-platform use. While drivers/sh has already been sanitized, there is still quite a lot of code that is not. This converts the arch/sh/ bits over, which permits us to flag the routines as deprecated whilst still building with -Werror for the architecture code, and to ensure that future users are not added. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
/*
|
|
* arch/sh/boards/landisk/psw.c
|
|
*
|
|
* push switch support for LANDISK and USL-5P
|
|
*
|
|
* Copyright (C) 2006-2007 Paul Mundt
|
|
* Copyright (C) 2007 kogiidena
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#include <linux/io.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <mach-landisk/mach/iodata_landisk.h>
|
|
#include <asm/push-switch.h>
|
|
|
|
static irqreturn_t psw_irq_handler(int irq, void *arg)
|
|
{
|
|
struct platform_device *pdev = arg;
|
|
struct push_switch *psw = platform_get_drvdata(pdev);
|
|
struct push_switch_platform_info *psw_info = pdev->dev.platform_data;
|
|
unsigned int sw_value;
|
|
int ret = 0;
|
|
|
|
sw_value = (0x0ff & (~__raw_readb(PA_STATUS)));
|
|
|
|
/* Nothing to do if there's no state change */
|
|
if (psw->state) {
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
/* Figure out who raised it */
|
|
if (sw_value & (1 << psw_info->bit)) {
|
|
psw->state = 1;
|
|
mod_timer(&psw->debounce, jiffies + 50);
|
|
ret = 1;
|
|
}
|
|
|
|
out:
|
|
/* Clear the switch IRQs */
|
|
__raw_writeb(0x00, PA_PWRINT_CLR);
|
|
|
|
return IRQ_RETVAL(ret);
|
|
}
|
|
|
|
static struct resource psw_power_resources[] = {
|
|
[0] = {
|
|
.start = IRQ_POWER,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource psw_usl5p_resources[] = {
|
|
[0] = {
|
|
.start = IRQ_BUTTON,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct push_switch_platform_info psw_power_platform_data = {
|
|
.name = "psw_power",
|
|
.bit = 4,
|
|
.irq_flags = IRQF_SHARED,
|
|
.irq_handler = psw_irq_handler,
|
|
};
|
|
|
|
static struct push_switch_platform_info psw1_platform_data = {
|
|
.name = "psw1",
|
|
.bit = 0,
|
|
.irq_flags = IRQF_SHARED,
|
|
.irq_handler = psw_irq_handler,
|
|
};
|
|
|
|
static struct push_switch_platform_info psw2_platform_data = {
|
|
.name = "psw2",
|
|
.bit = 2,
|
|
.irq_flags = IRQF_SHARED,
|
|
.irq_handler = psw_irq_handler,
|
|
};
|
|
|
|
static struct push_switch_platform_info psw3_platform_data = {
|
|
.name = "psw3",
|
|
.bit = 1,
|
|
.irq_flags = IRQF_SHARED,
|
|
.irq_handler = psw_irq_handler,
|
|
};
|
|
|
|
static struct platform_device psw_power_switch_device = {
|
|
.name = "push-switch",
|
|
.id = 0,
|
|
.num_resources = ARRAY_SIZE(psw_power_resources),
|
|
.resource = psw_power_resources,
|
|
.dev = {
|
|
.platform_data = &psw_power_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device psw1_switch_device = {
|
|
.name = "push-switch",
|
|
.id = 1,
|
|
.num_resources = ARRAY_SIZE(psw_usl5p_resources),
|
|
.resource = psw_usl5p_resources,
|
|
.dev = {
|
|
.platform_data = &psw1_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device psw2_switch_device = {
|
|
.name = "push-switch",
|
|
.id = 2,
|
|
.num_resources = ARRAY_SIZE(psw_usl5p_resources),
|
|
.resource = psw_usl5p_resources,
|
|
.dev = {
|
|
.platform_data = &psw2_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device psw3_switch_device = {
|
|
.name = "push-switch",
|
|
.id = 3,
|
|
.num_resources = ARRAY_SIZE(psw_usl5p_resources),
|
|
.resource = psw_usl5p_resources,
|
|
.dev = {
|
|
.platform_data = &psw3_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *psw_devices[] = {
|
|
&psw_power_switch_device,
|
|
&psw1_switch_device,
|
|
&psw2_switch_device,
|
|
&psw3_switch_device,
|
|
};
|
|
|
|
static int __init psw_init(void)
|
|
{
|
|
return platform_add_devices(psw_devices, ARRAY_SIZE(psw_devices));
|
|
}
|
|
module_init(psw_init);
|