343 lines
8.7 KiB
C
343 lines
8.7 KiB
C
/*
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* Copyright (c) 2010-2011 STMicroelectronics Limited
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*
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* Author: Pawel Moll <pawel.moll@st.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/stm/platform.h>
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#include <linux/stm/stx7105.h>
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#include <sound/stm.h>
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/* Audio subsystem resources ---------------------------------------------- */
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/* Audio subsystem glue */
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static struct platform_device stx7105_glue = {
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.name = "snd_stx7105_glue",
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.id = -1,
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.num_resources = 1,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfe210200, 0xc),
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}
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};
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/* Internal DAC */
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static struct platform_device stx7105_conv_dac_mem = {
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.name = "snd_conv_dac_mem",
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.id = -1,
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.num_resources = 1,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfe210100, 0x4),
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},
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.dev.platform_data = &(struct snd_stm_conv_dac_mem_info) {
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.source_bus_id = "snd_pcm_player.1",
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.channel_from = 0,
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.channel_to = 1,
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},
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};
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/* PCM players */
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static struct snd_stm_pcm_player_info stx7105_pcm_player_0_info = {
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.name = "PCM player #0 (HDMI)",
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.ver = 6,
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.card_device = 0,
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.clock_name = "CLKC_FS0_CH1",
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.channels = 8,
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.fdma_initiator = 0,
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.fdma_request_line = 39,
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/* .pad_config set by stx7105_configure_audio() */
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};
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static struct stm_pad_config stx7105_pcm_player_0_pad_config = {
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.gpios_num = 6,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_OUT(10, 3, 1), /* MCLK */
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STM_PAD_PIO_OUT(10, 4, 1), /* LRCLK */
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STM_PAD_PIO_OUT(10, 5, 1), /* SCLK */
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STM_PAD_PIO_OUT(10, 0, 1), /* DATA0 */
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STM_PAD_PIO_OUT(10, 1, 1), /* DATA1 */
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STM_PAD_PIO_OUT(10, 2, 1), /* DATA2 */
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},
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};
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static struct platform_device stx7105_pcm_player_0 = {
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.name = "snd_pcm_player",
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.id = 0,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd104d00, 0x28),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x1400), -1),
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},
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.dev.platform_data = &stx7105_pcm_player_0_info,
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};
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static struct snd_stm_pcm_player_info stx7105_pcm_player_1_info = {
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.name = "PCM player #1",
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.ver = 6,
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.card_device = 1,
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.clock_name = "CLKC_FS0_CH2",
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.channels = 2,
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.fdma_initiator = 0,
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.fdma_request_line = 34,
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/* .pad_config set by stx7105_configure_audio() */
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};
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/* Notice that PCM Player 1 has no MCLK line output,
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* what makes it almost useless... */
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static struct stm_pad_config stx7105_pcm_player_1_pad_config = {
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.gpios_num = 3,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_OUT(10, 7, 1), /* DATA */
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STM_PAD_PIO_OUT(11, 0, 1), /* LRCLK */
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STM_PAD_PIO_OUT(11, 1, 1), /* SCLK */
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},
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};
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static struct stm_pad_config stx7106_pcm_player_1_pad_config = {
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.gpios_num = 3,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_OUT(11, 0, 1), /* LRCLK */
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STM_PAD_PIO_OUT(11, 1, 1), /* SCLK */
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STM_PAD_PIO_OUT(11, 2, 1), /* DATA */
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},
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};
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static struct platform_device stx7105_pcm_player_1 = {
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.name = "snd_pcm_player",
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.id = 1,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd101800, 0x28),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x1420), -1),
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},
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.dev.platform_data = &stx7105_pcm_player_1_info,
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};
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/* SPDIF player */
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static struct snd_stm_spdif_player_info stx7105_spdif_player_info = {
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.name = "SPDIF player (HDMI)",
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.ver = 4,
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.card_device = 2,
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.clock_name = "CLKC_FS0_CH3",
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.fdma_initiator = 0,
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.fdma_request_line = 40,
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/* .pad_config set by stx7105_configure_audio() */
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};
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static struct stm_pad_config stx7105_spdif_player_pad_config = {
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.gpios_num = 1,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_OUT(10, 6, 1),
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},
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};
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static struct platform_device stx7105_spdif_player = {
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.name = "snd_spdif_player",
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.id = -1,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd104c00, 0x44),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x1460), -1),
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},
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.dev.platform_data = &stx7105_spdif_player_info,
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};
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/* I2S to SPDIF converters */
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static struct platform_device stx7105_conv_i2sspdif_0 = {
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.name = "snd_conv_i2sspdif",
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.id = 0,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd105000, 0x224),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x0a00), -1),
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},
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.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
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.ver = 4,
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.source_bus_id = "snd_pcm_player.0",
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.channel_from = 0,
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.channel_to = 1,
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},
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};
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static struct platform_device stx7105_conv_i2sspdif_1 = {
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.name = "snd_conv_i2sspdif",
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.id = 1,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd105400, 0x224),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x0a20), -1),
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},
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.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
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.ver = 4,
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.source_bus_id = "snd_pcm_player.0",
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.channel_from = 2,
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.channel_to = 3,
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},
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};
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static struct platform_device stx7105_conv_i2sspdif_2 = {
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.name = "snd_conv_i2sspdif",
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.id = 2,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd105800, 0x224),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x0a40), -1),
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},
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.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
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.ver = 4,
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.source_bus_id = "snd_pcm_player.0",
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.channel_from = 4,
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.channel_to = 5,
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},
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};
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static struct platform_device stx7105_conv_i2sspdif_3 = {
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.name = "snd_conv_i2sspdif",
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.id = 3,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd105c00, 0x224),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x0a60), -1),
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},
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.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
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.ver = 4,
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.source_bus_id = "snd_pcm_player.0",
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.channel_from = 6,
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.channel_to = 7,
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},
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};
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/* PCM reader */
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static struct snd_stm_pcm_reader_info stx7105_pcm_reader_info = {
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.name = "PCM Reader",
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.ver = 5,
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.card_device = 3,
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.channels = 2,
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.fdma_initiator = 0,
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.fdma_request_line = 37,
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/* .pad_config set by stx7105_configure_audio() */
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};
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static struct stm_pad_config stx7105_pcm_reader_pad_config = {
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.gpios_num = 3,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_IN(10, 7, -1), /* DATA */
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STM_PAD_PIO_IN(11, 0, -1), /* SCLK */
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STM_PAD_PIO_IN(11, 1, -1), /* LRCLK */
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},
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};
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static struct stm_pad_config stx7106_pcm_reader_pad_config = {
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.gpios_num = 3,
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.gpios = (struct stm_pad_gpio []) {
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STM_PAD_PIO_IN(11, 0, -1), /* SCLK */
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STM_PAD_PIO_IN(11, 1, -1), /* LRCLK */
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STM_PAD_PIO_IN(11, 2, -1), /* DATA */
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},
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};
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static struct platform_device stx7105_pcm_reader = {
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.name = "snd_pcm_reader",
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.id = -1,
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.num_resources = 2,
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.resource = (struct resource []) {
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STM_PLAT_RESOURCE_MEM(0xfd102000, 0x28),
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STM_PLAT_RESOURCE_IRQ(evt2irq(0x1440), -1),
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},
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.dev.platform_data = &stx7105_pcm_reader_info,
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};
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/* Devices */
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static struct platform_device *stx7105_audio_devices[] __initdata = {
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&stx7105_glue,
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&stx7105_conv_dac_mem,
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&stx7105_pcm_player_0,
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&stx7105_pcm_player_1,
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&stx7105_spdif_player,
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&stx7105_conv_i2sspdif_0,
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&stx7105_conv_i2sspdif_1,
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&stx7105_conv_i2sspdif_2,
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&stx7105_conv_i2sspdif_3,
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&stx7105_pcm_reader,
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};
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static int __init stx7105_audio_devices_setup(void)
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{
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/* Ugly but quick hack to have SPDIF player & I2S to SPDIF
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* converters enabled without loading STMFB...
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* TODO: do this in some sane way! */
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{
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void *hdmi_gpout = ioremap(0xfd104020, 4);
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writel(readl(hdmi_gpout) | 0x3, hdmi_gpout);
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iounmap(hdmi_gpout);
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}
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return platform_add_devices(stx7105_audio_devices,
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ARRAY_SIZE(stx7105_audio_devices));
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}
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device_initcall(stx7105_audio_devices_setup);
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/* Configuration */
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void __init stx7105_configure_audio(struct stx7105_audio_config *config)
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{
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static int configured;
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BUG_ON(configured);
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configured = 1;
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if (config->pcm_player_0_output >
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stx7105_pcm_player_0_output_disabled) {
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int unused = 3 - config->pcm_player_0_output;
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stx7105_pcm_player_0_info.pad_config =
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&stx7105_pcm_player_0_pad_config;
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stx7105_pcm_player_0_pad_config.gpios_num -= unused;
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}
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if (config->spdif_player_output_enabled)
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stx7105_spdif_player_info.pad_config =
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&stx7105_spdif_player_pad_config;
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switch (cpu_data->type) {
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case CPU_STX7105:
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if (config->pcm_player_1_enabled)
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stx7105_pcm_player_1_info.pad_config =
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&stx7105_pcm_player_1_pad_config;
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if (config->pcm_reader_input_enabled)
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stx7105_pcm_reader_info.pad_config =
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&stx7105_pcm_reader_pad_config;
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break;
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case CPU_STX7106:
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if (config->pcm_player_1_enabled)
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stx7105_pcm_player_1_info.pad_config =
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&stx7106_pcm_player_1_pad_config;
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if (config->pcm_reader_input_enabled)
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stx7105_pcm_reader_info.pad_config =
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&stx7106_pcm_reader_pad_config;
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break;
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default:
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BUG();
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break;
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}
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}
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