satip-axe/kernel/drivers/stm/stx7111_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/stx7105.h>
#include <sound/stm.h>
/* Audio subsystem resources ---------------------------------------------- */
/* Audio subsystem glue */
static struct platform_device stx7111_glue = {
.name = "snd_stx7111_glue",
.id = -1,
.num_resources = 1,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfe210200, 0xc),
}
};
/* Internal DAC */
static struct platform_device stx7111_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 platform_device stx7111_pcm_player_0 = {
.name = "snd_pcm_player",
.id = 0,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd104d00, 0x28),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1400), -1),
},
.dev.platform_data = &(struct snd_stm_pcm_player_info) {
.name = "PCM player #0 (HDMI)",
.ver = 6,
.card_device = 0,
.clock_name = "CLKC_FS0_CH1",
.channels = 8,
.fdma_initiator = 0,
.fdma_request_line = 27,
},
};
static struct platform_device stx7111_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(evt2irq(0x1420), -1),
},
.dev.platform_data = &(struct snd_stm_pcm_player_info) {
.name = "PCM player #1",
.ver = 6,
.card_device = 1,
.clock_name = "CLKC_FS0_CH2",
.channels = 2,
.fdma_initiator = 0,
.fdma_request_line = 28,
},
};
/* SPDIF player */
static struct platform_device stx7111_spdif_player = {
.name = "snd_spdif_player",
.id = -1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd104c00, 0x44),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1460), -1),
},
.dev.platform_data = &(struct snd_stm_spdif_player_info) {
.name = "SPDIF player (HDMI)",
.ver = 4,
.card_device = 2,
.clock_name = "CLKC_FS0_CH3",
.fdma_initiator = 0,
.fdma_request_line = 30,
},
};
/* I2S to SPDIF converters */
static struct platform_device stx7111_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(evt2irq(0x13c0), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.0",
.channel_from = 0,
.channel_to = 1,
},
};
static struct platform_device stx7111_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(evt2irq(0x0a80), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.0",
.channel_from = 2,
.channel_to = 3,
},
};
static struct platform_device stx7111_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(evt2irq(0x0b00), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.0",
.channel_from = 4,
.channel_to = 5,
},
};
static struct platform_device stx7111_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(evt2irq(0x0b20), -1),
},
.dev.platform_data = &(struct snd_stm_conv_i2sspdif_info) {
.ver = 4,
.source_bus_id = "snd_pcm_player.0",
.channel_from = 6,
.channel_to = 7,
},
};
/* PCM reader */
/* MB618 has no audio input, so there is no way to test it... */
static struct platform_device stx7111_pcm_reader = {
.name = "snd_pcm_reader",
.id = -1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd102000, 0x28),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1440), -1),
},
.dev.platform_data = &(struct snd_stm_pcm_reader_info) {
.name = "PCM Reader",
.ver = 4,
.card_device = 3,
.channels = 2,
.fdma_initiator = 0,
.fdma_request_line = 29,
},
};
/* Devices */
static struct platform_device *stx7111_audio_devices[] __initdata = {
&stx7111_glue,
&stx7111_conv_dac_mem,
&stx7111_pcm_player_0,
&stx7111_pcm_player_1,
&stx7111_spdif_player,
&stx7111_conv_i2sspdif_0,
&stx7111_conv_i2sspdif_1,
&stx7111_conv_i2sspdif_2,
&stx7111_conv_i2sspdif_3,
&stx7111_pcm_reader,
};
static int __init stx7111_audio_devices_setup(void)
{
if (cpu_data->type != CPU_STX7111) {
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(stx7111_audio_devices,
ARRAY_SIZE(stx7111_audio_devices));
}
device_initcall(stx7111_audio_devices_setup);