| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2006 by Daniel Ankers |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| |
| #include <stdbool.h> |
| #include "system.h" |
| #include "cpu.h" |
| #include "i2c-pp.h" |
| #include "tuner.h" |
| #include "as3514.h" |
| #include "power.h" |
| |
| void power_init(void) |
| { |
| } |
| |
| void power_off(void) |
| { |
| char byte; |
| |
| /* Send shutdown command to PMU */ |
| byte = i2c_readbyte(AS3514_I2C_ADDR, AS3514_SYSTEM); |
| byte &= ~0x1; |
| pp_i2c_send(AS3514_I2C_ADDR, AS3514_SYSTEM, byte); |
| |
| /* Stop interrupts on both cores */ |
| disable_interrupt(IRQ_FIQ_STATUS); |
| COP_INT_DIS = -1; |
| CPU_INT_DIS = -1; |
| |
| /* Halt everything and wait for device to power off */ |
| while (1) |
| { |
| COP_CTL = 0x40000000; |
| CPU_CTL = 0x40000000; |
| } |
| } |
| |
| bool charger_inserted(void) |
| { |
| #ifdef SANSA_E200 |
| if(GPIOB_INPUT_VAL & 0x10) |
| #else /* SANSA_C200 */ |
| if(GPIOH_INPUT_VAL & 0x2) |
| #endif |
| return true; |
| return false; |
| } |
| |
| void ide_power_enable(bool on) |
| { |
| (void)on; |
| } |
| |
| #if CONFIG_TUNER |
| |
| /** Tuner **/ |
| static bool powered = false; |
| |
| bool tuner_power(bool status) |
| { |
| bool old_status; |
| lv24020lp_lock(); |
| |
| old_status = powered; |
| |
| if (status != old_status) |
| { |
| if (status) |
| { |
| /* init mystery amplification device */ |
| #if defined(SANSA_E200) |
| GPO32_ENABLE |= 0x1; |
| #else /* SANSA_C200 */ |
| DEV_INIT2 &= ~0x800; |
| #endif |
| udelay(5); |
| |
| /* When power up, host should initialize the 3-wire bus |
| in host read mode: */ |
| |
| /* 1. Set direction of the DATA-line to input-mode. */ |
| GPIOH_OUTPUT_EN &= ~(1 << 5); |
| GPIOH_ENABLE |= (1 << 5); |
| |
| /* 2. Drive NR_W low */ |
| GPIOH_OUTPUT_VAL &= ~(1 << 3); |
| GPIOH_OUTPUT_EN |= (1 << 3); |
| GPIOH_ENABLE |= (1 << 3); |
| |
| /* 3. Drive CLOCK high */ |
| GPIOH_OUTPUT_VAL |= (1 << 4); |
| GPIOH_OUTPUT_EN |= (1 << 4); |
| GPIOH_ENABLE |= (1 << 4); |
| |
| lv24020lp_power(true); |
| } |
| else |
| { |
| lv24020lp_power(false); |
| |
| /* set all as inputs */ |
| GPIOH_OUTPUT_EN &= ~((1 << 5) | (1 << 3) | (1 << 4)); |
| GPIOH_ENABLE &= ~((1 << 3) | (1 << 4)); |
| |
| /* turn off mystery amplification device */ |
| #if defined (SANSA_E200) |
| GPO32_ENABLE &= ~0x1; |
| #else |
| DEV_INIT2 |= 0x800; |
| #endif |
| } |
| |
| powered = status; |
| } |
| |
| lv24020lp_unlock(); |
| return old_status; |
| } |
| |
| #endif /* CONFIG_TUNER */ |