satip-axe/kernel/drivers/stm/stx7141_audio.c

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/*
* Copyright (c) 2010-2011 STMicroelectronics Limited
*
* Author: Pawel Moll <pawel.moll@st.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/stm/platform.h>
#include <linux/stm/stx7141.h>
#include <sound/stm.h>
#include <asm/irq-ilc.h>
/* Audio subsystem resources ---------------------------------------------- */
/* Audio subsystem glue */
static struct platform_device stx7141_glue = {
.name = "snd_stx7141_glue",
.id = -1,
.num_resources = 1,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfe210200, 0xc),
}
};
/* Internal DAC */
static struct platform_device stx7141_conv_dac_mem = {
.name = "snd_conv_dac_mem",
.id = -1,
.num_resources = 1,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfe210100, 0x4),
},
.dev.platform_data = &(struct snd_stm_conv_dac_mem_info) {
.source_bus_id = "snd_pcm_player.1",
.channel_from = 0,
.channel_to = 1,
},
};
/* PCM players */
static struct snd_stm_pcm_player_info stx7141_pcm_player_0_info = {
.name = "PCM player #0",
.ver = 6,
.card_device = 0,
.clock_name = "CLKC_FS0_CH1",
.channels = 10,
.fdma_initiator = 0,
.fdma_request_line = 39,
/* .pad_config set by stx7141_configure_audio() */
};
static struct stm_pad_config stx7141_pcm_player_0_pad_config = {
.gpios_num = 8,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(15, 4, 1), /* MCLK */
STM_PAD_PIO_OUT(15, 5, 1), /* LRCLK */
STM_PAD_PIO_OUT(15, 6, 1), /* SCLK */
STM_PAD_PIO_OUT(15, 3, 1), /* DATA0 */
STM_PAD_PIO_OUT(15, 7, 2), /* DATA1 */
STM_PAD_PIO_OUT(16, 0, 2), /* DATA2 */
STM_PAD_PIO_OUT(16, 1, 2), /* DATA3 */
STM_PAD_PIO_OUT(16, 2, 2), /* DATA4 */
},
};
static struct platform_device stx7141_pcm_player_0 = {
.name = "snd_pcm_player",
.id = 0,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd101000, 0x28),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(101), -1),
},
.dev.platform_data = &stx7141_pcm_player_0_info,
};
static struct snd_stm_pcm_player_info stx7141_pcm_player_1_info = {
.name = "PCM player #1",
.ver = 6,
.card_device = 1,
.clock_name = "CLKC_FS0_CH2",
.channels = 2,
.fdma_initiator = 0,
.fdma_request_line = 40,
/* .pad_config set by stx7141_configure_audio() */
};
static struct stm_pad_config stx7141_pcm_player_1_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(15, 0, 1), /* MCLK */
STM_PAD_PIO_OUT(16, 1, 1), /* LRCLK */
STM_PAD_PIO_OUT(16, 2, 1), /* SCLK */
STM_PAD_PIO_OUT(15, 7, 1), /* DATA */
},
};
static struct platform_device stx7141_pcm_player_1 = {
.name = "snd_pcm_player",
.id = 1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd101800, 0x28),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(102), -1),
},
.dev.platform_data = &stx7141_pcm_player_1_info,
};
static struct platform_device stx7141_pcm_player_2 = {
.name = "snd_pcm_player",
.id = 2,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd104d00, 0x28),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(137), -1),
},
.dev.platform_data = &(struct snd_stm_pcm_player_info) {
.name = "PCM player HDMI",
.ver = 6,
.card_device = 2,
.clock_name = "CLKC_FS0_CH4",
.channels = 8,
.fdma_initiator = 0,
.fdma_request_line = 47,
},
};
/* SPDIF player */
static struct snd_stm_spdif_player_info stx7141_spdif_player_info = {
.name = "SPDIF player (HDMI)",
.ver = 4,
.card_device = 3,
.clock_name = "CLKC_FS0_CH3",
.fdma_initiator = 0,
.fdma_request_line = 48,
/* .pad_config set by stx7141_configure_audio() */
};
static struct stm_pad_config stx7141_spdif_player_pad_config = {
.gpios_num = 1,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(16, 3, 1),
},
};
static struct platform_device stx7141_spdif_player = {
.name = "snd_spdif_player",
.id = -1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd104c00, 0x44),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(136), -1),
},
.dev.platform_data = &stx7141_spdif_player_info,
};
/* I2S to SPDIF converters */
static struct platform_device stx7141_conv_i2sspdif_0 = {
.name = "snd_conv_i2sspdif",
.id = 0,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd105000, 0x224),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(135), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.2",
.channel_from = 0,
.channel_to = 1,
},
};
static struct platform_device stx7141_conv_i2sspdif_1 = {
.name = "snd_conv_i2sspdif",
.id = 1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd105400, 0x224),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(134), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.2",
.channel_from = 2,
.channel_to = 3,
},
};
static struct platform_device stx7141_conv_i2sspdif_2 = {
.name = "snd_conv_i2sspdif",
.id = 2,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd105800, 0x224),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(133), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.2",
.channel_from = 4,
.channel_to = 5,
},
};
static struct platform_device stx7141_conv_i2sspdif_3 = {
.name = "snd_conv_i2sspdif",
.id = 3,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd105c00, 0x224),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(132), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.2",
.channel_from = 6,
.channel_to = 7,
},
};
/* PCM reader */
static struct snd_stm_pcm_reader_info stx7141_pcm_reader_0_info = {
.name = "PCM Reader #0",
.ver = 4,
.card_device = 4,
.channels = 2,
.fdma_initiator = 0,
.fdma_request_line = 41,
/* .pad_config set by stx7141_configure_audio() */
};
static struct stm_pad_config stx7141_pcm_reader_0_pad_config = {
.gpios_num = 3,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_IN(15, 0, -1), /* DATA */
STM_PAD_PIO_IN(15, 1, -1), /* LRCLK */
STM_PAD_PIO_IN(15, 2, -1), /* SCLK */
},
};
static struct platform_device stx7141_pcm_reader_0 = {
.name = "snd_pcm_reader",
.id = 0,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd102000, 0x28),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(103), -1),
},
.dev.platform_data = &stx7141_pcm_reader_0_info,
};
static struct snd_stm_pcm_reader_info stx7141_pcm_reader_1_info = {
.name = "PCM Reader #1",
.ver = 4,
.card_device = 5,
.channels = 2,
.fdma_initiator = 0,
.fdma_request_line = 42,
/* .pad_config set by stx7141_configure_audio() */
};
static struct stm_pad_config stx7141_pcm_reader_1_pad_config = {
.gpios_num = 3,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_IN(16, 4, -1), /* DATA */
STM_PAD_PIO_IN(16, 5, -1), /* LRCLK */
STM_PAD_PIO_IN(16, 6, -1), /* SCLK */
},
};
static struct platform_device stx7141_pcm_reader_1 = {
.name = "snd_pcm_reader",
.id = 1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd103000, 0x28),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(104), -1),
},
.dev.platform_data = &stx7141_pcm_reader_1_info,
};
/* Devices */
static struct platform_device *stx7141_audio_devices[] __initdata = {
&stx7141_glue,
&stx7141_conv_dac_mem,
&stx7141_pcm_player_0,
&stx7141_pcm_player_1,
&stx7141_pcm_player_2,
&stx7141_spdif_player,
&stx7141_conv_i2sspdif_0,
&stx7141_conv_i2sspdif_1,
&stx7141_conv_i2sspdif_2,
&stx7141_conv_i2sspdif_3,
&stx7141_pcm_reader_0,
&stx7141_pcm_reader_1,
};
static int __init stx7141_audio_devices_setup(void)
{
if (cpu_data->type != CPU_STX7141) {
BUG();
return -ENODEV;
}
/* Ugly but quick hack to have SPDIF player & I2S to SPDIF
* converters enabled without loading STMFB...
* TODO: do this in some sane way! */
{
void *hdmi_gpout = ioremap(0xfd104020, 4);
writel(readl(hdmi_gpout) | 0x3, hdmi_gpout);
iounmap(hdmi_gpout);
}
return platform_add_devices(stx7141_audio_devices,
ARRAY_SIZE(stx7141_audio_devices));
}
device_initcall(stx7141_audio_devices_setup);
/* Configuration */
void __init stx7141_configure_audio(struct stx7141_audio_config *config)
{
static int configured;
BUG_ON(configured);
configured = 1;
if (config->pcm_player_0_output >
stx7141_pcm_player_0_output_disabled) {
int unused = 5 - config->pcm_player_0_output;
stx7141_pcm_player_0_info.pad_config =
&stx7141_pcm_player_0_pad_config;
stx7141_pcm_player_0_pad_config.sysconfs_num -= unused;
stx7141_pcm_player_0_pad_config.gpios_num -= unused;
}
if (config->pcm_player_1_output_enabled) {
/* PCM Player 0 outputs DATA1-4 are multiplexed with
* PCM Player 1's ones... */
BUG_ON(config->pcm_player_0_output >
stx7141_pcm_player_0_output_2_channels);
stx7141_pcm_player_1_info.pad_config =
&stx7141_pcm_player_1_pad_config;
}
if (config->spdif_player_output_enabled)
stx7141_spdif_player_info.pad_config =
&stx7141_spdif_player_pad_config;
if (config->pcm_reader_0_input_enabled)
stx7141_pcm_reader_0_info.pad_config =
&stx7141_pcm_reader_0_pad_config;
if (config->pcm_reader_1_input_enabled)
stx7141_pcm_reader_1_info.pad_config =
&stx7141_pcm_reader_1_pad_config;
}