From 7abf2b53a462612808d46d6d77a7f35261a0e5a3 Mon Sep 17 00:00:00 2001 From: Michael Sevakis Date: Fri, 9 Apr 2010 01:21:53 +0000 Subject: Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25547 a1c6a512-1295-4272-9138-f99709370657 --- .../target/arm/imx31/gigabeat-s/mc13783-imx31.c | 360 --------------------- 1 file changed, 360 deletions(-) delete mode 100644 firmware/target/arm/imx31/gigabeat-s/mc13783-imx31.c (limited to 'firmware/target/arm/imx31/gigabeat-s/mc13783-imx31.c') diff --git a/firmware/target/arm/imx31/gigabeat-s/mc13783-imx31.c b/firmware/target/arm/imx31/gigabeat-s/mc13783-imx31.c deleted file mode 100644 index 2c5af8d5b7..0000000000 --- a/firmware/target/arm/imx31/gigabeat-s/mc13783-imx31.c +++ /dev/null @@ -1,360 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (c) 2008 by Michael Sevakis - * - * 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 "system.h" -#include "cpu.h" -#include "spi-imx31.h" -#include "gpio-imx31.h" -#include "mc13783.h" -#include "debug.h" -#include "kernel.h" - -#include "power-imx31.h" -#include "button-target.h" -#include "adc-target.h" -#include "usb-target.h" - -#ifdef BOOTLOADER -#define PMIC_DRIVER_CLOSE -#endif - -/* This is all based on communicating with the MC13783 PMU which is on - * CSPI2 with the chip select at 0. The LCD controller resides on - * CSPI3 cs1, but we have no idea how to communicate to it */ -static struct spi_node mc13783_spi = -{ - CSPI2_NUM, /* CSPI module 2 */ - CSPI_CONREG_CHIP_SELECT_SS0 | /* Chip select 0 */ - CSPI_CONREG_DRCTL_DONT_CARE | /* Don't care about CSPI_RDY */ - CSPI_CONREG_DATA_RATE_DIV_4 | /* Clock = IPG_CLK/4 - 16.5MHz */ - CSPI_BITCOUNT(32-1) | /* All 32 bits are to be transferred */ - CSPI_CONREG_SSPOL | /* SS active high */ - CSPI_CONREG_SSCTL | /* Negate SS between SPI bursts */ - CSPI_CONREG_MODE, /* Master mode */ - 0, /* SPI clock - no wait states */ -}; - -extern const struct mc13783_event_list mc13783_event_list; - -static int mc13783_thread_stack[DEFAULT_STACK_SIZE/sizeof(int)]; -static const char *mc13783_thread_name = "pmic"; -static struct wakeup mc13783_wake; - -/* Tracking for which interrupts are enabled */ -static uint32_t pmic_int_enabled[2] = - { 0x00000000, 0x00000000 }; - -static const unsigned char pmic_intm_regs[2] = - { MC13783_INTERRUPT_MASK0, MC13783_INTERRUPT_MASK1 }; - -static const unsigned char pmic_ints_regs[2] = - { MC13783_INTERRUPT_STATUS0, MC13783_INTERRUPT_STATUS1 }; - -#ifdef PMIC_DRIVER_CLOSE -static bool pmic_close = false; -static unsigned int mc13783_thread_id = 0; -#endif - -static void mc13783_interrupt_thread(void) -{ - uint32_t pending[2]; - - /* Enable mc13783 GPIO event */ - gpio_enable_event(MC13783_EVENT_ID); - - while (1) - { - const struct mc13783_event *event, *event_last; - - wakeup_wait(&mc13783_wake, TIMEOUT_BLOCK); - -#ifdef PMIC_DRIVER_CLOSE - if (pmic_close) - break; -#endif - - mc13783_read_regset(pmic_ints_regs, pending, 2); - - /* Only clear interrupts being dispatched */ - pending[0] &= pmic_int_enabled[0]; - pending[1] &= pmic_int_enabled[1]; - - mc13783_write_regset(pmic_ints_regs, pending, 2); - - /* Whatever is going to be serviced in this loop has been - * acknowledged. Reenable interrupt and if anything was still - * pending or became pending again, another signal will be - * generated. */ - imx31_regset32(&MC13783_GPIO_IMR, 1ul << MC13783_GPIO_LINE); - - event = mc13783_event_list.events; - event_last = event + mc13783_event_list.count; - - /* .count is surely expected to be > 0 */ - do - { - enum mc13783_event_sets set = event->set; - uint32_t pnd = pending[set]; - uint32_t mask = event->mask; - - if (pnd & mask) - { - event->callback(); - pnd &= ~mask; - pending[set] = pnd; - } - - if ((pending[0] | pending[1]) == 0) - break; /* Teminate early if nothing more to service */ - } - while (++event < event_last); - } - -#ifdef PMIC_DRIVER_CLOSE - gpio_disable_event(MC13783_EVENT_ID); -#endif -} - -/* GPIO interrupt handler for mc13783 */ -void mc13783_event(void) -{ - /* Mask the interrupt (unmasked when PMIC thread services it). */ - imx31_regclr32(&MC13783_GPIO_IMR, 1ul << MC13783_GPIO_LINE); - MC13783_GPIO_ISR = (1ul << MC13783_GPIO_LINE); - wakeup_signal(&mc13783_wake); -} - -void mc13783_init(void) -{ - /* Serial interface must have been initialized first! */ - wakeup_init(&mc13783_wake); - - /* Enable the PMIC SPI module */ - spi_enable_module(&mc13783_spi); - - /* Mask any PMIC interrupts for now - modules will enable them as - * required */ - mc13783_write(MC13783_INTERRUPT_MASK0, 0xffffff); - mc13783_write(MC13783_INTERRUPT_MASK1, 0xffffff); - - MC13783_GPIO_ISR = (1ul << MC13783_GPIO_LINE); - -#ifdef PMIC_DRIVER_CLOSE - mc13783_thread_id = -#endif - create_thread(mc13783_interrupt_thread, - mc13783_thread_stack, sizeof(mc13783_thread_stack), 0, - mc13783_thread_name IF_PRIO(, PRIORITY_REALTIME) IF_COP(, CPU)); -} - -#ifdef PMIC_DRIVER_CLOSE -void mc13783_close(void) -{ - unsigned int thread_id = mc13783_thread_id; - - if (thread_id == 0) - return; - - mc13783_thread_id = 0; - - pmic_close = true; - wakeup_signal(&mc13783_wake); - thread_wait(thread_id); -} -#endif /* PMIC_DRIVER_CLOSE */ - -bool mc13783_enable_event(enum mc13783_event_ids id) -{ - const struct mc13783_event * const event = - &mc13783_event_list.events[id]; - int set = event->set; - uint32_t mask = event->mask; - - spi_lock(&mc13783_spi); - - pmic_int_enabled[set] |= mask; - mc13783_clear(pmic_intm_regs[set], mask); - - spi_unlock(&mc13783_spi); - - return true; -} - -void mc13783_disable_event(enum mc13783_event_ids id) -{ - const struct mc13783_event * const event = - &mc13783_event_list.events[id]; - int set = event->set; - uint32_t mask = event->mask; - - spi_lock(&mc13783_spi); - - pmic_int_enabled[set] &= ~mask; - mc13783_set(pmic_intm_regs[set], mask); - - spi_unlock(&mc13783_spi); -} - -uint32_t mc13783_set(unsigned address, uint32_t bits) -{ - spi_lock(&mc13783_spi); - - uint32_t data = mc13783_read(address); - - if (data != MC13783_DATA_ERROR) - mc13783_write(address, data | bits); - - spi_unlock(&mc13783_spi); - - return data; -} - -uint32_t mc13783_clear(unsigned address, uint32_t bits) -{ - spi_lock(&mc13783_spi); - - uint32_t data = mc13783_read(address); - - if (data != MC13783_DATA_ERROR) - mc13783_write(address, data & ~bits); - - spi_unlock(&mc13783_spi); - - return data; -} - -int mc13783_write(unsigned address, uint32_t data) -{ - struct spi_transfer xfer; - uint32_t packet; - - if (address >= MC13783_NUM_REGS) - return -1; - - packet = (1 << 31) | (address << 25) | (data & 0xffffff); - xfer.txbuf = &packet; - xfer.rxbuf = &packet; - xfer.count = 1; - - if (!spi_transfer(&mc13783_spi, &xfer)) - return -1; - - return 1 - xfer.count; -} - -uint32_t mc13783_write_masked(unsigned address, uint32_t data, uint32_t mask) -{ - uint32_t old; - - spi_lock(&mc13783_spi); - - old = mc13783_read(address); - - if (old != MC13783_DATA_ERROR) - { - data = (old & ~mask) | (data & mask); - - if (mc13783_write(address, data) != 1) - old = MC13783_DATA_ERROR; - } - - spi_unlock(&mc13783_spi); - - return old; -} - -int mc13783_write_regset(const unsigned char *regs, const uint32_t *data, - int count) -{ - int i; - struct spi_transfer xfer; - uint32_t packets[MC13783_NUM_REGS]; - - if ((unsigned)count > MC13783_NUM_REGS) - return -1; - - for (i = 0; i < count; i++) - { - uint32_t reg = regs[i]; - - if (reg >= MC13783_NUM_REGS) - return -1; - - packets[i] = (1 << 31) | (reg << 25) | (data[i] & 0xffffff); - } - - xfer.txbuf = packets; - xfer.rxbuf = packets; - xfer.count = count; - - if (!spi_transfer(&mc13783_spi, &xfer)) - return -1; - - return count - xfer.count; -} - -uint32_t mc13783_read(unsigned address) -{ - uint32_t packet; - struct spi_transfer xfer; - - if (address >= MC13783_NUM_REGS) - return MC13783_DATA_ERROR; - - packet = address << 25; - - xfer.txbuf = &packet; - xfer.rxbuf = &packet; - xfer.count = 1; - - if (!spi_transfer(&mc13783_spi, &xfer)) - return MC13783_DATA_ERROR; - - return packet; -} - -int mc13783_read_regset(const unsigned char *regs, uint32_t *buffer, - int count) -{ - int i; - struct spi_transfer xfer; - - if ((unsigned)count > MC13783_NUM_REGS) - return -1; - - for (i = 0; i < count; i++) - { - unsigned reg = regs[i]; - - if (reg >= MC13783_NUM_REGS) - return -1; - - buffer[i] = reg << 25; - } - - xfer.txbuf = buffer; - xfer.rxbuf = buffer; - xfer.count = count; - - if (!spi_transfer(&mc13783_spi, &xfer)) - return -1; - - return count - xfer.count; -} -- cgit v1.2.3