From eafe57084786d5711e434165297f13864697f9f9 Mon Sep 17 00:00:00 2001 From: Hans-Christian Egtvedt Date: Mon, 23 Jul 2007 16:01:38 +0200 Subject: [ALSA] ALSA sound driver for the AT73C213 DAC using Atmel SSC driver This patch adds support for the AT73C213 DAC using the misc Atmel SSC driver in I2S mode. The driver also requires a SPI to setup the registers and control volume. It has been tested with an AT32AP7000 on the ATSTK1000 development board. The driver should also work with any Atmel device with an SSC module supported by the Atmel SSC driver (atmel-ssc). The atmel-ssc driver is just submitted to the Linux kernel. Please see mail thread http://lkml.org/lkml/2007/7/16/32 Signed-off-by: Hans-Christian Egtvedt Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- include/linux/spi/at73c213.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/linux/spi/at73c213.h (limited to 'include/linux') diff --git a/include/linux/spi/at73c213.h b/include/linux/spi/at73c213.h new file mode 100644 index 000000000000..0f20a70e5eb4 --- /dev/null +++ b/include/linux/spi/at73c213.h @@ -0,0 +1,25 @@ +/* + * Board-specific data used to set up AT73c213 audio DAC driver. + */ + +#ifndef __LINUX_SPI_AT73C213_H +#define __LINUX_SPI_AT73C213_H + +/** + * at73c213_board_info - how the external DAC is wired to the device. + * + * @ssc_id: SSC platform_driver id the DAC shall use to stream the audio. + * @dac_clk: the external clock used to provide master clock to the DAC. + * @shortname: a short discription for the DAC, seen by userspace tools. + * + * This struct contains the configuration of the hardware connection to the + * external DAC. The DAC needs a master clock and a I2S audio stream. It also + * provides a name which is used to identify it in userspace tools. + */ +struct at73c213_board_info { + int ssc_id; + struct clk *dac_clk; + char shortname[32]; +}; + +#endif /* __LINUX_SPI_AT73C213_H */ -- cgit v1.2.3 From b0c813ceee8963790bebe73956574336604ae574 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Tue, 31 Jul 2007 18:18:44 +0200 Subject: [ALSA] ASoC CS4270 codec device driver This patch adds ALSA SoC support for the Cirrus Logic CS4270 codec. The following features are suppored: 1) Stand-alone and software mode 2) Software mode via I2C only 3) Master mode, not Slave 4) No power management Signed-off-by: Timur Tabi Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- include/linux/i2c-id.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h index a271b67a8e2d..88c81403eb3f 100644 --- a/include/linux/i2c-id.h +++ b/include/linux/i2c-id.h @@ -120,6 +120,7 @@ #define I2C_DRIVERID_WM8753 91 /* Wolfson WM8753 audio codec */ #define I2C_DRIVERID_LM4857 92 /* LM4857 Audio Amplifier */ #define I2C_DRIVERID_VP27SMPX 93 /* Panasonic VP27s tuner internal MPX */ +#define I2C_DRIVERID_CS4270 94 /* Cirrus Logic 4270 audio codec */ #define I2C_DRIVERID_I2CDEV 900 #define I2C_DRIVERID_ARP 902 /* SMBus ARP Client */ -- cgit v1.2.3