diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:17:40 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:17:40 -0700 |
commit | 5b6b54982258c330247957a8d877b9851ac69d53 (patch) | |
tree | 567e4b3391e0c6689cf511789fb512ef7385c16f /arch/sh/boards/landisk/psw.c | |
parent | 35c74823cb382c610be908f1b92f980b84e7c37c (diff) | |
parent | 39374aadcd0159b4744ab456f4efa100bea84bd4 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (38 commits)
sh: R7785RP board updates.
sh: Update r7780rp defconfig.
sh: Add die chain notifiers.
sh: Fix APM emulation on hp6xx.
sh: Wire up more IRQs for SH7709.
sh: Solution Engine 7722 board support.
sh: Fix r7780rp build.
sh: kdump support.
sh: Move clock reporting to its own proc entry.
sh: Solution Engine SH7705 board and CPU updates.
serial: sh-sci: Fix module clock refcount for serial console.
serial: sh-sci: Fix module clock refcounting.
sh: SH7722 clock framework support.
sh: hp6xx pata_platform support.
sh: Obey CONFIG_HZ for HZ definition.
sh: Fix fstatat64() syscall.
sh: se7780 PCI support.
sh: SH7780 Solution Engine board support.
sh: Add a dummy SH-4 PCIC fixup.
sh: Tidy up L-BOX area5 addresses.
...
Diffstat (limited to 'arch/sh/boards/landisk/psw.c')
-rw-r--r-- | arch/sh/boards/landisk/psw.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/sh/boards/landisk/psw.c b/arch/sh/boards/landisk/psw.c new file mode 100644 index 00000000000..5a9b70b5dec --- /dev/null +++ b/arch/sh/boards/landisk/psw.c @@ -0,0 +1,143 @@ +/* + * 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 <asm/landisk/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 & (~ctrl_inb(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 */ + ctrl_outb(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); |