Hi, this patch is for example how to put together AT91SAM9260 and TLV320AIC3106 controlled via SPI. It tooks me a lot of time to make it working, so I think it could be helpfull for other people.
In original source "snd-soc-afeb9260.c" which I use as example is BIG ERROR: In function "afeb9260_soc_init" is missing call of "atmel_ssc_set_audio(0);". It cause bug "PROBLEM: Asoc driver in 2.6.37.3 for AT91SAM9260 / TLV320AIC3X is broken" which I post some time ago.
Depend on: [PATCH 1/2] ALSA: ASoc: TLV320AIC3X: ad SPI and clock on GPIO2 or BCLK Kernel version: 2.6.38 Signed-off-by: Jiri Prchal jiri.prchal@aksignal.cz ---
diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/arch/arm/mach-at91/board-cdu.c /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/board-cdu.c --- linux-2.6.38-vanilla/arch/arm/mach-at91/board-cdu.c 1970-01-01 01:00:00.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/board-cdu.c 2011-03-24 09:15:23.852370981 +0100 @@ -0,0 +1,345 @@ +/* + * linux/arch/arm/mach-at91/board-cdu.c + * + * Copyright (C) 2005 SAN People + * Copyright (C) 2006 Atmel + * Copyright (C) 2011 AKsignal Brno + * jiri.prchal@aksignal.cz + * + * 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 program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/clk.h> +#include <linux/spi/mcp23s08.h> +#include <linux/dma-mapping.h> + +#include <mach/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/board.h> +#include <mach/gpio.h> +#include <mach/at91sam9_smc.h> + +#include "sam9_smc.h" +#include "generic.h" + +static void __init cdu_map_io(void) +{ + /* Initialize processor: 6 MHz crystal */ + at91sam9260_initialize(6000000); + + /* DBGU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ + at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS + | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD + | ATMEL_UART_RI); + + /* USART1 on ttyS2. (Rx, Tx, RTS) */ + at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_RTS); + + /* USART2 on ttyS3. (Rx, Tx, RTS) */ + at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_RTS); + + /* USART3 on ttyS4. (Rx, Tx, RTS) */ + at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS); + + /* USART4 on ttyS5. (Tx) */ + /* EBUS - transmit audio, no rx */ + /*at91_register_uart(AT91SAM9260_ID_US4, 5, 0);*/ + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +static void __init cdu_init_irq(void) +{ + at91sam9260_init_interrupts(NULL); +} + +/* + * USB Host port + */ +static struct at91_usbh_data __initdata cdu_usbh_data = { + .ports = 2, +}; + +/* + * USB Device port + */ +static struct at91_udc_data __initdata cdu_udc_data = { + .vbus_pin = AT91_PIN_PC15, + .pullup_pin = 0, /* pull-up driven by UDC */ +}; + +/* + * SPI devices. + */ +#define MCP23S08_GPIO_BASE 128 + +static const struct mcp23s08_platform_data mcp23s08_gpio_info = { + .chip[0].is_present = true, + .chip[0].pullups = 0, + .base = MCP23S08_GPIO_BASE, +}; + +static struct spi_board_info cdu_spi_devices[] = { + { /* ADC LTC2488 */ + .modalias = "spidev", + .chip_select = 0, + .max_speed_hz = 1 * 1000 * 1000, + .bus_num = 1, + }, + { /* GPIO expander MCP23S08 */ + .modalias = "mcp23s08", + .chip_select = 1, + .max_speed_hz = 1000000, + .bus_num = 1, + .platform_data = &mcp23s08_gpio_info, + .mode = SPI_MODE_3, + }, + { /* non volatile memory (F-RAM) FM25VN10 */ + .modalias = "spidev", + .chip_select = 2, + .max_speed_hz = 1 * 1000 * 1000, + .bus_num = 1, + }, + { /* audiocodec TLV320AIC3106 */ + .modalias = "tlv320aic3x-codec", + .chip_select = 3, + .max_speed_hz = 1000000, + .bus_num = 1, + .mode = SPI_MODE_1, + }, +}; + +/* + * MACB Ethernet device + */ +static struct at91_eth_data __initdata cdu_macb_data = { + .phy_irq_pin = 0, //nc, + .is_rmii = 1, +}; + +/* + * NAND flash + */ +static struct mtd_partition __initdata cdu_nand_partition[] = { + { + .name = "bootstrap", + .offset = 0, + .size = 0x40000, + }, + { + .name = "uboot", + .offset = 0x40000, + .size = (0xc0000 - 0x40000), + }, + { + .name = "ubootenv", + .offset = 0xc0000, + .size = (0x100000 - 0xc0000), + }, + { + .name = "kernel", + .offset = 0x100000, + .size = (0x400000 - 0x100000), + }, + { + .name = "rootfs", + .offset = 0x400000, + .size = (0x8000000 - 0x400000), + }, +}; + +static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) +{ + *num_partitions = ARRAY_SIZE(cdu_nand_partition); + return cdu_nand_partition; +} + +static struct atmel_nand_data __initdata cdu_nand_data = { + .ale = 21, + .cle = 22, +// .det_pin = ... not connected + .rdy_pin = AT91_PIN_PC13, + .enable_pin = AT91_PIN_PC14, + .partition_info = nand_partitions, + .bus_width_16 = 0, +}; + +static struct sam9_smc_config __initdata cdu_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 1, + .ncs_write_setup = 0, + .nwe_setup = 1, + + .ncs_read_pulse = 3, + .nrd_pulse = 3, + .ncs_write_pulse = 3, + .nwe_pulse = 3, + + .read_cycle = 5, + .write_cycle = 5, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, + .tdf_cycles = 2, +}; + +static void __init cdu_add_device_nand(void) +{ + /* setup bus-width (8 or 16) */ + if (cdu_nand_data.bus_width_16) + cdu_nand_smc_config.mode |= AT91_SMC_DBW_16; + else + cdu_nand_smc_config.mode |= AT91_SMC_DBW_8; + + /* configure chip-select 3 (NAND) */ + sam9_smc_configure(3, &cdu_nand_smc_config); + + at91_add_device_nand(&cdu_nand_data); +} + +/* +* MCI (SD/MMC) +*/ +static struct at91_mmc_data __initdata ek_mmc_data = { + .slot_b = 0, + .wire4 = 1, + // .det_pin = ... not connected + // .wp_pin = ... not connected + // .vcc_pin = ... not connected +}; + +/* + * LEDs + */ +static struct gpio_led cdu_leds[] = { + { + .name = "red", + .gpio = AT91_PIN_PC10, + .default_trigger = "timer", + }, + { + .name = "green", + .gpio = AT91_PIN_PA5, + .default_trigger = "heartbeat", + }, + { + .name = "yellow", + .gpio = AT91_PIN_PB20, + .active_low = 1, + .default_trigger = "mmc0", + }, + { + .name = "blue", + .gpio = AT91_PIN_PB21, + .active_low = 1, + .default_trigger = "nand-disk", + }, +}; + +/* + * GPIOs + */ +static struct gpio gpios[] = { + { AT91_PIN_PA0, GPIOF_OUT_INIT_LOW, "ebus_dir"}, + { AT91_PIN_PA1, GPIOF_OUT_INIT_LOW, "time_dir"}, + { AT91_PIN_PB12, GPIOF_OUT_INIT_LOW, "gsm_rst"}, + { AT91_PIN_PB13, GPIOF_OUT_INIT_LOW, "gsm_on"}, + { AT91_PIN_PC2, GPIOF_IN, "por"}, + { AT91_PIN_PC7, GPIOF_OUT_INIT_HIGH, "spk_shdn"}, + + { AT91_PIN_PC0, GPIOF_IN, "in13"}, + { AT91_PIN_PC1, GPIOF_IN, "in14"}, + { AT91_PIN_PA22, GPIOF_IN, "in17"}, + { AT91_PIN_PA23, GPIOF_IN, "in18"}, + { AT91_PIN_PA24, GPIOF_IN, "in19"}, + { AT91_PIN_PA25, GPIOF_IN, "in20"}, + + { AT91_PIN_PA26, GPIOF_OUT_INIT_LOW, "out15"}, + { AT91_PIN_PA27, GPIOF_OUT_INIT_LOW, "out16"}, + { AT91_PIN_PA28, GPIOF_OUT_INIT_LOW, "out17"}, + { AT91_PIN_PA29, GPIOF_OUT_INIT_LOW, "out18"}, + { AT91_PIN_PA30, GPIOF_OUT_INIT_LOW, "out19"}, + { AT91_PIN_PB29, GPIOF_OUT_INIT_LOW, "out20"}, + + { MCP23S08_GPIO_BASE + 0, GPIOF_IN, "busadrp"}, + { MCP23S08_GPIO_BASE + 2, GPIOF_IN, "busadr5"}, + { MCP23S08_GPIO_BASE + 3, GPIOF_IN, "busadr4"}, + { MCP23S08_GPIO_BASE + 4, GPIOF_IN, "busadr3"}, + { MCP23S08_GPIO_BASE + 5, GPIOF_IN, "busadr2"}, + { MCP23S08_GPIO_BASE + 6, GPIOF_IN, "busadr1"}, + { MCP23S08_GPIO_BASE + 7, GPIOF_IN, "busadr0"}, +}; + +static void __init cdu_add_gpio (void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE (gpios); i++) { + gpio_request_one (gpios[i].gpio, gpios[i].flags, gpios[i].label); + } +} + +/* + * init + */ +static void __init cdu_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* USB Host */ + at91_add_device_usbh(&cdu_usbh_data); + /* USB Device */ + at91_add_device_udc(&cdu_udc_data); + /* SPI */ + at91_add_device_spi(cdu_spi_devices, ARRAY_SIZE(cdu_spi_devices)); + /* NAND */ + cdu_add_device_nand(); + /* Ethernet */ + at91_add_device_eth(&cdu_macb_data); + /* MMC */ + at91_add_device_mmc(0, &ek_mmc_data); + /* SSC */ + at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK | ATMEL_SSC_TD | ATMEL_SSC_RD)); + /* LEDs */ + at91_gpio_leds(cdu_leds, ARRAY_SIZE(cdu_leds)); + // GPIO + cdu_add_gpio (); +} + +MACHINE_START(AT91SAM9260EK, "CDU") + /* Maintainer: Atmel */ + .boot_params = AT91_SDRAM_BASE + 0x100, + .timer = &at91sam926x_timer, + .map_io = cdu_map_io, + .init_irq = cdu_init_irq, + .init_machine = cdu_board_init, +MACHINE_END diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/arch/arm/mach-at91/Kconfig /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/Kconfig --- linux-2.6.38-vanilla/arch/arm/mach-at91/Kconfig 2011-03-15 02:20:32.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/Kconfig 2011-03-16 09:19:40.000000000 +0100 @@ -213,6 +213,12 @@ config MACH_AT91SAM9260EK Select this if you are using Atmel's AT91SAM9260-EK or AT91SAM9XE Evaluation Kit http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3933
+config MACH_CDU + bool "CDU AKsignal board" + help + Select this if you are using AKsignal CDU board + http://www.aksignal.cz + config MACH_CAM60 bool "KwikByte KB9260 (CAM60) board" help diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/arch/arm/mach-at91/Makefile /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/Makefile --- linux-2.6.38-vanilla/arch/arm/mach-at91/Makefile 2011-03-15 02:20:32.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/arch/arm/mach-at91/Makefile 2011-03-16 09:19:40.000000000 +0100 @@ -40,6 +40,7 @@ obj-$(CONFIG_MACH_ECO920) += board-eco92
# AT91SAM9260 board-specific support obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o +obj-$(CONFIG_MACH_CDU) += board-cdu.o obj-$(CONFIG_MACH_CAM60) += board-cam60.o obj-$(CONFIG_MACH_SAM9_L9260) += board-sam9-l9260.o obj-$(CONFIG_MACH_USB_A9260) += board-usb-a9260.o diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/sound/soc/atmel/Kconfig /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/Kconfig --- linux-2.6.38-vanilla/sound/soc/atmel/Kconfig 2011-03-15 02:20:32.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/Kconfig 2011-03-22 09:46:46.751566158 +0100 @@ -50,3 +50,11 @@ config SND_AT91_SOC_AFEB9260 select SND_SOC_TLV320AIC23 help Say Y here to support sound on AFEB9260 board. + +config SND_AT91_SOC_CDU + tristate "SoC Audio support for CDU board" + depends on ARCH_AT91 && MACH_CDU && SND_ATMEL_SOC + select SND_ATMEL_SOC_SSC + select SND_SOC_TLV320AIC3X + help + Say Y here to support sound on CDU board. diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/sound/soc/atmel/Makefile /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/Makefile --- linux-2.6.38-vanilla/sound/soc/atmel/Makefile 2011-03-15 02:20:32.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/Makefile 2011-03-16 09:26:17.000000000 +0100 @@ -14,3 +14,4 @@ snd-soc-playpaq-objs := playpaq_wm8510.o obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o obj-$(CONFIG_SND_AT32_SOC_PLAYPAQ) += snd-soc-playpaq.o obj-$(CONFIG_SND_AT91_SOC_AFEB9260) += snd-soc-afeb9260.o +obj-$(CONFIG_SND_AT91_SOC_CDU) += snd-soc-cdu.o diff -uprN -X linux-2.6.38-vanilla/Documentation/dontdiff linux-2.6.38-vanilla/sound/soc/atmel/snd-soc-cdu.c /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/snd-soc-cdu.c --- linux-2.6.38-vanilla/sound/soc/atmel/snd-soc-cdu.c 1970-01-01 01:00:00.000000000 +0100 +++ /home/prchal/arm/fw-cdu/linux/linux-2.6.38/sound/soc/atmel/snd-soc-cdu.c 2011-03-24 09:27:55.404367652 +0100 @@ -0,0 +1,264 @@ +/* + * snd-soc-cdu -- SoC audio for AT91SAM9260-based + * AKsignal CDU board. + * + * Copyright (C) 2005 SAN People + * Copyright (C) 2008 Atmel + * Copyright (C) 2011 AK signal Brno + * + * Authors: Sedji Gaouaou sedji.gaouaou@atmel.com + * Jiri Prchal jiri.prchal@aksignal.cz + * + * Based on ati_b1_wm8731.c by: + * Frank Mandarino fmandarino@endrelia.com + * Copyright 2006 Endrelia Technologies Inc. + * Based on corgi.c by: + * Copyright 2005 Wolfson Microelectronics PLC. + * Copyright 2005 Openedhand Ltd. + * + * 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 program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> + +#include <linux/atmel-ssc.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/mach-types.h> +#include <mach/hardware.h> +#include <mach/gpio.h> + +#include "../codecs/tlv320aic3x.h" +#include "atmel-pcm.h" +#include "atmel_ssc_dai.h" + +struct { + unsigned int channels; + snd_pcm_format_t format; + unsigned int rate; + unsigned int codecclk; + unsigned int cmrdiv; + unsigned int period; +} cdu_audio[] = { + /* 16 bit stereo modes */ + {2, SNDRV_PCM_FORMAT_S16_LE, 8000, 2096000, 25, 130,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 16000, 2496000, 21, 77,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 32000, 2496000, 21, 38,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 48000, 2016000, 26, 20,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 96000, 4032000, 13, 20,}, + + {2, SNDRV_PCM_FORMAT_S16_LE, 11025, 2381400, 22, 107,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 22050, 2381400, 22, 53,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 44100, 2381400, 22, 26,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 88200, 4762800, 11, 26,}, + + {2, SNDRV_PCM_FORMAT_S16_LE, 11520, 2626560, 20, 113,}, + {2, SNDRV_PCM_FORMAT_S16_LE, 23040, 2626560, 20, 56,}, + +}; + +static int cdu_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int ret; + int i, found = 0; + snd_pcm_format_t format = params_format(params); + unsigned int rate = params_rate(params); + unsigned int channels = params_channels(params); + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* find the correct audio parameters */ + for (i = 0; i < ARRAY_SIZE(cdu_audio); i++) { + if (rate == cdu_audio[i].rate && + format == cdu_audio[i].format && + channels == cdu_audio[i].channels) { + found = 1; + break; + } + } + if (!found) + return -EINVAL; + + /* Set the codec system clock for DAC and ADC */ + ret = snd_soc_dai_set_sysclk(codec_dai, CLKIN_BCLK, cdu_audio[i].codecclk, SND_SOC_CLOCK_IN); + if (ret < 0) { + printk(KERN_ERR "can't set codec system clock\n"); + return ret; + } + + /* Set the cpu clock dividers to BCLK */ + ret = snd_soc_dai_set_clkdiv(cpu_dai, ATMEL_SSC_CMR_DIV, cdu_audio[i].cmrdiv); + ret |= snd_soc_dai_set_clkdiv(cpu_dai, ATMEL_SSC_TCMR_PERIOD, cdu_audio[i].period); + ret |= snd_soc_dai_set_clkdiv(cpu_dai, ATMEL_SSC_RCMR_PERIOD, cdu_audio[i].period); + if (ret < 0) { + printk(KERN_ERR "can't set cpu system clock\n"); + return ret; + } + + return 0; +} + +static struct snd_soc_ops cdu_ops = { + .hw_params = cdu_hw_params, +}; + +static const struct snd_soc_dapm_widget cdu_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_LINE("Line Out", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), +}; + +static const struct snd_soc_dapm_route intercon[] = { + /* Headphone connected to HPLOUT, HPROUT */ + {"Headphone Jack", NULL, "HPLOUT"}, + {"Headphone Jack", NULL, "HPROUT"}, + + /* Line Out connected to LLOUT, RLOUT */ + {"Line Out", NULL, "LLOUT"}, + {"Line Out", NULL, "RLOUT"}, + + /* Mic connected to (MIC3L | MIC3R) */ + {"MIC3L", NULL, "Mic Bias 2V"}, + {"MIC3R", NULL, "Mic Bias 2V"}, + {"Mic Bias 2V", NULL, "Mic Jack"}, + + /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */ + {"LINE1L", NULL, "Line In"}, + {"LINE2L", NULL, "Line In"}, + {"LINE1R", NULL, "Line In"}, + {"LINE2R", NULL, "Line In"}, +}; + +/* + * Logic for a aic3x as connected on a cdu board. + */ +static int cdu_aic3x_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dapm_context *dapm = &codec->dapm; + int ret; + + printk(KERN_DEBUG "cdu_aic3x: cdu_aic3x_init called\n"); + + /* Add specific widgets */ + snd_soc_dapm_new_controls(dapm, cdu_dapm_widgets, + ARRAY_SIZE(cdu_dapm_widgets)); + /* Set up specific audio path interconnects */ + snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); + + /* always connected */ + snd_soc_dapm_enable_pin(dapm, "Headphone Jack"); + snd_soc_dapm_enable_pin(dapm, "Line Out"); + snd_soc_dapm_enable_pin(dapm, "Mic Jack"); + snd_soc_dapm_enable_pin(dapm, "Line In"); + + snd_soc_dapm_sync(dapm); + + return 0; +} + +static struct snd_soc_dai_link cdu_dai = { + .name = "TLV320AIC3106", + .stream_name = "PCM", + .cpu_dai_name = "atmel-ssc-dai.0", + .codec_dai_name = "tlv320aic3x-hifi", + .init = cdu_aic3x_init, + .platform_name = "atmel-pcm-audio", +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + .codec_name = "tlv320aic3x-codec.0-001b", +#endif +#if defined(CONFIG_SPI_MASTER) + .codec_name = "spi1.3", +#endif + .ops = &cdu_ops, +}; + +static struct snd_soc_card snd_soc_cdu = { + .name = "TLV320AIC3106", + .dai_link = &cdu_dai, + .num_links = 1, +}; + +static struct platform_device *cdu_snd_device; + +static int __init cdu_init(void) +{ + struct clk *pllb; + int ret; + + ret = atmel_ssc_set_audio(0); + if (ret != 0) { + pr_err("Failed to set SSC 0 for audio: %d\n", ret); + return ret; + } + + cdu_snd_device = platform_device_alloc("soc-audio", -1); + if (!cdu_snd_device) { + printk(KERN_ERR "ASoC: Platform device allocation failed\n"); + ret = -ENOMEM; + } + + platform_set_drvdata(cdu_snd_device, &snd_soc_cdu); + + ret = platform_device_add(cdu_snd_device); + if (ret) { + printk(KERN_ERR "ASoC: Platform device allocation failed\n"); + goto err_device_add; + } + + return ret; + +err_device_add: + platform_device_put(cdu_snd_device); +err: + return ret; +} + +static void __exit cdu_exit(void) +{ + platform_device_unregister(cdu_snd_device); + cdu_snd_device = NULL; +} + +module_init(cdu_init); +module_exit(cdu_exit); + +/* Module information */ +MODULE_AUTHOR("Jiri Prchal jiri.prchal@aksignal.cz"); +MODULE_DESCRIPTION("ALSA SoC CDU_AIC3X"); +MODULE_LICENSE("GPL");