/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * Copyright © 2008 Rafaël Carré * * 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 "config.h" #include "kernel.h" #include "thread.h" #include "pmu-target.h" #include "adc-target.h" #include "i2c-s5l8702.h" #include "gpio-s5l8702.h" int pmu_read_multiple(int address, int count, unsigned char* buffer) { return i2c_read(0, 0xe6, address, count, buffer); } int pmu_write_multiple(int address, int count, unsigned char* buffer) { return i2c_write(0, 0xe6, address, count, buffer); } unsigned char pmu_read(int address) { unsigned char tmp; pmu_read_multiple(address, 1, &tmp); return tmp; } int pmu_write(int address, unsigned char val) { return pmu_write_multiple(address, 1, &val); } #if 0 // TODO void pmu_ldo_on_in_standby(unsigned int ldo, int onoff) { if (ldo < 4) { unsigned char newval = pmu_read(0x3B) & ~(1 << (2 * ldo)); if (onoff) newval |= 1 << (2 * ldo); pmu_write(0x3B, newval); } else if (ldo < 8) { unsigned char newval = pmu_read(0x3C) & ~(1 << (2 * (ldo - 4))); if (onoff) newval |= 1 << (2 * (ldo - 4)); pmu_write(0x3C, newval); } } void pmu_ldo_set_voltage(unsigned int ldo, unsigned char voltage) { if (ldo > 6) return; pmu_write(0x2d + (ldo << 1), voltage); } void pmu_hdd_power(bool on) { pmu_write(0x1b, on ? 1 : 0); } void pmu_ldo_power_on(unsigned int ldo) { if (ldo > 6) return; pmu_write(0x2e + (ldo << 1), 1); } void pmu_ldo_power_off(unsigned int ldo) { if (ldo > 6) return; pmu_write(0x2e + (ldo << 1), 0); } #endif void pmu_set_wake_condition(unsigned char condition) { // TODO (void) condition; } void pmu_enter_standby(void) { pmu_write(D1671_REG_SYSCTRLA, D1671_SYSCTRLA_GOSTDBY); } #ifdef HAVE_ADJUSTABLE_CPU_FREQ void pmu_set_cpu_voltage(bool high) { // TODO (void) high; } #endif #if (CONFIG_RTC == RTC_NANO3G) void pmu_read_rtc(unsigned char* buffer) { // TODO (void) buffer; } void pmu_write_rtc(unsigned char* buffer) { // TODO (void) buffer; } #endif void pmu_set_usblimit(bool fast_charge) { pmu_write(D1671_REG_CHCTL, (pmu_read(D1671_REG_CHCTL) & ~D1671_CHCTL_FASTCHRG) | fast_charge); } /* * ADC */ static struct mutex pmu_adc_mutex; /* converts raw value to millivolts */ unsigned short pmu_adc_raw2mv( const struct pmu_adc_channel *ch, unsigned short raw) { // TODO (void) ch; (void) raw; return 0; } /* returns raw value */ unsigned short pmu_read_adc(const struct pmu_adc_channel *ch) { // TODO int raw = 0; mutex_lock(&pmu_adc_mutex); (void) ch; mutex_unlock(&pmu_adc_mutex); return raw; } /* * eINT */ #define Q_EINT 0 static long pmu_thread_stack[DEFAULT_STACK_SIZE/2/sizeof(long)]; static struct event_queue pmu_queue; static unsigned char ints_msk[2]; static void pmu_eint_isr(struct eic_handler*); static struct eic_handler pmu_eint = { .gpio_n = GPIO_EINT_PMU, .type = EIC_INTTYPE_LEVEL, .level = EIC_INTLEVEL_LOW, .isr = pmu_eint_isr, }; static int pmu_input_holdswitch; int pmu_holdswitch_locked(void) { return pmu_input_holdswitch; } #ifdef IPOD_ACCESSORY_PROTOCOL static int pmu_input_accessory; int pmu_accessory_present(void) { return pmu_input_accessory; } #endif #if CONFIG_CHARGING static int pmu_input_firewire; int pmu_firewire_present(void) { return pmu_input_firewire; } #endif #if defined(BOOTLOADER) // XXX: from usb-s5l8702.c #include "usb.h" static int usb_status = USB_EXTRACTED; int usb_detect(void) { return usb_status; } void usb_insert_int(void) { usb_status = USB_INSERTED; } void usb_remove_int(void) { usb_status = USB_EXTRACTED; } #endif static void pmu_read_inputs(void) { unsigned char status[2]; pmu_read_multiple(D1671_REG_STATUSA, 2, status); if (status[0] & D1671_STATUSA_VBUS) usb_insert_int(); else usb_remove_int(); #if CONFIG_CHARGING pmu_input_firewire = !!(status[0] & D1671_STATUSA_VADAPTOR); #endif #ifdef IPOD_ACCESSORY_PROTOCOL pmu_input_accessory = !!(status[0] & D1671_STATUSA_INPUT1); #endif pmu_input_holdswitch = !(status[1] & D1671_STATUSB_INPUT2); } static void pmu_eint_isr(struct eic_handler *h) { eint_unregister(h); queue_post(&pmu_queue, Q_EINT, 0); } static void NORETURN_ATTR pmu_thread(void) { struct queue_event ev; while (true) { queue_wait_w_tmo(&pmu_queue, &ev, TIMEOUT_BLOCK); switch (ev.id) { case Q_EINT: /* clear all PMU interrupts, this will also raise (disable) the PMU IRQ pin */ pmu_write_multiple(D1671_REG_EVENTA, 2, "\xFF\xFF"); /* get actual values */ pmu_read_inputs(); eint_register(&pmu_eint); break; case SYS_TIMEOUT: break; } } } /* main init */ void pmu_init(void) { mutex_init(&pmu_adc_mutex); queue_init(&pmu_queue, false); create_thread(pmu_thread, pmu_thread_stack, sizeof(pmu_thread_stack), 0, "PMU" IF_PRIO(, PRIORITY_SYSTEM) IF_COP(, CPU)); /* configure PMU interrutps */ ints_msk[0] = 0xff; ints_msk[1] = 0xff; ints_msk[0] &= ~D1671_IRQMASKA_VBUS; /* USB */ #if CONFIG_CHARGING ints_msk[0] &= ~D1671_IRQMASKA_VADAPTOR; /* FireWire */ #endif #ifdef IPOD_ACCESSORY_PROTOCOL ints_msk[0] &= ~D1671_IRQMASKA_INPUT1; /* Accessory */ #endif ints_msk[1] &= ~D1671_IRQMASKB_INPUT2; /* Holdswitch */ pmu_write_multiple(D1671_REG_IRQMASKA, 2, ints_msk); /* clear all interrupts */ pmu_write_multiple(D1671_REG_EVENTA, 2, "\xFF\xFF"); /* get initial values */ pmu_read_inputs(); eint_register(&pmu_eint); } /* * preinit */ int pmu_rd_multiple(int address, int count, unsigned char* buffer) { return i2c_rd(0, 0xe6, address, count, buffer); } int pmu_wr_multiple(int address, int count, unsigned char* buffer) { return i2c_wr(0, 0xe6, address, count, buffer); } unsigned char pmu_rd(int address) { unsigned char val; pmu_rd_multiple(address, 1, &val); return val; } int pmu_wr(int address, unsigned char val) { return pmu_wr_multiple(address, 1, &val); } void pmu_preinit(void) { // TBC: LDOs ??? pmu_wr(0x1b, 0x14); pmu_wr(0x16, 0x14); pmu_wr(0x15, 0x14); // TBC: Vnand = 2000 + val*50 = 3000 mV pmu_wr(0x18, 0x18); // TBC TBC TBC: Vaccy = 3200 mV ??? pmu_wr(0x10, (pmu_rd(0x10) & 0xdb) | 0x8); // TBC: bit4 is related to NAND, LDO_0x15 on/off ??? // TBC: 0x30, 0x31 y 0x32 seems related to ADC (norboot) pmu_wr(0x34, 0x72); // TBC: en DA9030: TBATHIGH (0-255, TBAT high temperature threshold pmu_wr(0x30, pmu_rd(0x30) | 0x20); // TBC: TBATREF ON ??? pmu_wr(0x21, 0x5c); // TBC: CHRG_CTL (max. current and Vbat ???) pmu_wr(0xb, 0x6); pmu_wr(0x1d, 0); /* configure and clear interrupts */ pmu_wr_multiple(D1671_REG_IRQMASKA, 2, "\x42\xBE"); pmu_wr_multiple(D1671_REG_EVENTA, 2, "\xFF\xFF"); /* backlight off */ pmu_wr(D1671_REG_LEDCTL, pmu_rd(D1671_REG_LEDCTL) & ~D1671_LEDCTL_ENABLE); } #ifdef BOOTLOADER bool pmu_is_hibernated(void) { return !!(pmu_rd(D1671_REG_EVENTB) & D1671_EVENTB_WARMBOOT); } #endif