projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/arch/arm/mach-integrator/leds.c | |
| 3 | * | |
| 4 | * Integrator/AP and Integrator/CP LED control routines | |
| 5 | * | |
| 6 | * Copyright (C) 1999 ARM Limited | |
| 7 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 10 | * it under the terms of the GNU General Public License as published by | |
| 11 | * the Free Software Foundation; either version 2 of the License, or | |
| 12 | * (at your option) any later version. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | */ | |
| 23 | #include <linux/kernel.h> | |
| 24 | #include <linux/init.h> | |
| 20cf33ea RK |
25 | #include <linux/smp.h> |
| 26 | #include <linux/spinlock.h> | |
| fced80c7 | 27 | #include <linux/io.h> |
| 1da177e4 | 28 | |
| a09e64fb | 29 | #include <mach/hardware.h> |
| a285edcf | 30 | #include <mach/platform.h> |
| 1da177e4 LT |
31 | #include <asm/leds.h> |
| 32 | #include <asm/system.h> | |
| 33 | #include <asm/mach-types.h> | |
| a09e64fb | 34 | #include <mach/cm.h> |
| 1da177e4 LT |
35 | |
| 36 | static int saved_leds; | |
| 37 | ||
| 38 | static void integrator_leds_event(led_event_t ledevt) | |
| 39 | { | |
| 40 | unsigned long flags; | |
| 41 | const unsigned int dbg_base = IO_ADDRESS(INTEGRATOR_DBG_BASE); | |
| 42 | unsigned int update_alpha_leds; | |
| 1f9c381f | 43 | |
| 1da177e4 LT |
44 | // yup, change the LEDs |
| 45 | local_irq_save(flags); | |
| 46 | update_alpha_leds = 0; | |
| 47 | ||
| 48 | switch(ledevt) { | |
| 49 | case led_idle_start: | |
| 50 | cm_control(CM_CTRL_LED, 0); | |
| 51 | break; | |
| 52 | ||
| 53 | case led_idle_end: | |
| 54 | cm_control(CM_CTRL_LED, CM_CTRL_LED); | |
| 55 | break; | |
| 56 | ||
| 57 | case led_timer: | |
| 58 | saved_leds ^= GREEN_LED; | |
| 59 | update_alpha_leds = 1; | |
| 60 | break; | |
| 61 | ||
| 62 | case led_red_on: | |
| 63 | saved_leds |= RED_LED; | |
| 64 | update_alpha_leds = 1; | |
| 65 | break; | |
| 66 | ||
| 67 | case led_red_off: | |
| 68 | saved_leds &= ~RED_LED; | |
| 69 | update_alpha_leds = 1; | |
| 70 | break; | |
| 71 | ||
| 72 | default: | |
| 73 | break; | |
| 74 | } | |
| 75 | ||
| 76 | if (update_alpha_leds) { | |
| 77 | while (__raw_readl(dbg_base + INTEGRATOR_DBG_ALPHA_OFFSET) & 1); | |
| 78 | __raw_writel(saved_leds, dbg_base + INTEGRATOR_DBG_LEDS_OFFSET); | |
| 79 | } | |
| 80 | local_irq_restore(flags); | |
| 81 | } | |
| 82 | ||
| 83 | static int __init leds_init(void) | |
| 84 | { | |
| 85 | if (machine_is_integrator() || machine_is_cintegrator()) | |
| 86 | leds_event = integrator_leds_event; | |
| 87 | ||
| 88 | return 0; | |
| 89 | } | |
| 90 | ||
| 20cf33ea | 91 | core_initcall(leds_init); |