satip-axe/kernel/drivers/stm/stx7100_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/stm/platform.h>
#include <linux/stm/stx7100.h>
#include <sound/stm.h>
/* Audio subsystem resources ---------------------------------------------- */
/* Audio subsystem glue */
static struct platform_device stx7100_glue = {
.name = "snd_stx7100_glue",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x19210200, 0x4),
},
};
/* Internal DAC */
static struct snd_stm_conv_dac_mem_info stx7100_conv_dac_mem_info = {
/* .ver = see stx7100_configure_audio() */
.source_bus_id = "snd_pcm_player.1",
.channel_from = 0,
.channel_to = 1,
};
static struct platform_device stx7100_conv_dac_mem = {
.name = "snd_conv_dac_mem",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x19210100, 0x4),
},
.dev.platform_data = &stx7100_conv_dac_mem_info,
};
/* PCM players */
struct snd_stm_pcm_player_info stx7100_pcm_player_0_info = {
.name = "PCM player #0 (HDMI)",
/* .ver = see stx7100_configure_audio() */
.card_device = 0,
.clock_name = "CLKC_FS0_CH1",
.channels = 10,
.fdma_initiator = 1,
/* .fdma_request_line = see stx7100_configure_audio() */
};
static struct platform_device stx7100_pcm_player_0 = {
.name = "snd_pcm_player",
.id = 0,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x18101000, 0x28),
STM_PLAT_RESOURCE_IRQ(144, -1),
},
.dev.platform_data = &stx7100_pcm_player_0_info,
};
struct snd_stm_pcm_player_info stx7100_pcm_player_1_info = {
.name = "PCM player #1",
/* .ver = see stx7100_configure_audio() */
.card_device = 1,
.clock_name = "CLKC_FS0_CH2",
.channels = 2,
.fdma_initiator = 1,
/* .fdma_request_line = see stx7100_configure_audio() */
};
static struct platform_device stx7100_pcm_player_1 = {
.name = "snd_pcm_player",
.id = 1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x18101800, 0x28),
STM_PLAT_RESOURCE_IRQ(145, -1),
},
.dev.platform_data = &stx7100_pcm_player_1_info,
};
/* SPDIF player */
struct snd_stm_spdif_player_info stx7100_spdif_player_info = {
.name = "SPDIF player (HDMI)",
/* .ver = see stx7100_configure_audio() */
.card_device = 2,
.clock_name = "CLKC_FS0_CH3",
.fdma_initiator = 1,
/* .fdma_request_line = see stx7100_configure_audio() */
};
static struct platform_device stx7100_spdif_player = {
.name = "snd_spdif_player",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x18103000, 0x40),
STM_PLAT_RESOURCE_IRQ(147, -1),
},
.dev.platform_data = &stx7100_spdif_player_info,
};
/* HDMI-connected I2S to SPDIF converter */
static struct snd_stm_conv_i2sspdif_info stx7100_conv_i2sspdif_info = {
/* .ver = see stx7100_configure_audio() */
.source_bus_id = "snd_pcm_player.0",
.channel_from = 0,
.channel_to = 1,
};
static struct platform_device stx7100_conv_i2sspdif = {
.name = "snd_conv_i2sspdif",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x18103800, 0x224),
STM_PLAT_RESOURCE_IRQ(142, -1),
},
.dev.platform_data = &stx7100_conv_i2sspdif_info,
};
/* PCM reader */
struct snd_stm_pcm_reader_info stx7100_pcm_reader_info = {
.name = "PCM Reader",
/* .ver = see stx7100_configure_audio() */
.card_device = 3,
.channels = 2,
.fdma_initiator = 1,
/* .fdma_request_line = see stx7100_configure_audio() */
};
static struct platform_device stx7100_pcm_reader = {
.name = "snd_pcm_reader",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0x18102000, 0x28),
STM_PLAT_RESOURCE_IRQ(146, -1),
},
.dev.platform_data = &stx7100_pcm_reader_info,
};
/* Devices */
static struct platform_device *stx7100_audio_devices[] __initdata = {
&stx7100_glue,
&stx7100_pcm_player_0,
&stx7100_pcm_player_1,
&stx7100_conv_dac_mem,
&stx7100_spdif_player,
&stx7100_conv_i2sspdif,
&stx7100_pcm_reader,
};
static int __init stx7100_audio_devices_setup(void)
{
switch (cpu_data->type) {
case CPU_STX7100:
/* FDMA request line configuration */
stx7100_pcm_player_0_info.fdma_request_line = 26;
stx7100_pcm_player_1_info.fdma_request_line = 27;
stx7100_spdif_player_info.fdma_request_line = 29;
stx7100_pcm_reader_info.fdma_request_line = 28;
/* IP versions */
stx7100_pcm_reader_info.ver = 1;
if (cpu_data->cut_major < 3) {
/* STx7100 cut < 3.0 */
stx7100_pcm_player_0_info.ver = 1;
stx7100_pcm_player_1_info.ver = 1;
} else {
/* STx7100 cut >= 3.0 */
stx7100_pcm_player_0_info.ver = 2;
stx7100_pcm_player_1_info.ver = 2;
}
stx7100_spdif_player_info.ver = 1;
stx7100_conv_i2sspdif_info.ver = 1;
break;
case CPU_STX7109:
/* FDMA request line configuration */
stx7100_pcm_player_0_info.fdma_request_line = 24;
stx7100_pcm_player_1_info.fdma_request_line = 25;
stx7100_spdif_player_info.fdma_request_line = 27;
stx7100_pcm_reader_info.fdma_request_line = 26;
/* IP versions */
stx7100_pcm_reader_info.ver = 2;
if (cpu_data->cut_major < 3) {
/* STx7109 cut < 3.0 */
stx7100_pcm_player_0_info.ver = 3;
stx7100_pcm_player_1_info.ver = 3;
} else {
/* STx7109 cut >= 3.0 */
stx7100_pcm_player_0_info.ver = 4;
stx7100_pcm_player_1_info.ver = 4;
}
stx7100_spdif_player_info.ver = 2;
stx7100_conv_i2sspdif_info.ver = 2;
break;
default:
BUG();
return -ENODEV;
}
return platform_add_devices(stx7100_audio_devices,
ARRAY_SIZE(stx7100_audio_devices));
}
device_initcall(stx7100_audio_devices_setup);