sound: add ab8500 audio codec

This patch is based on the following work:

Add a power management scheme for AB3550 and fix bugs that hinder simultaneous playback/capture.
ST-Ericsson ID: WP 259100
Author: Xie Xiaolei <xie.xiaolei@stericsson.com>

msp: add configuration param for MSP_IODLY
ST-Ericsson ID: CR261462
Author: Rabin Vincent <rabin.vincent@stericsson.com>

ab8500-acodec: remove unused dma variables
ST-Ericsson ID: AP259210
Author: Rabin Vincent <rabin.vincent@stericsson.com>

Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>

1 files changed, 284 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/include/mach/u8500_acodec_ab8500.h b/arch/arm/mach-ux500/include/mach/u8500_acodec_ab8500.h
new file mode 100644
index 00000000000..0575bbdb730
--- /dev/null
+++ b/arch/arm/mach-ux500/include/mach/u8500_acodec_ab8500.h
@@ -0,0 +1,284 @@
+/* Header file for u8500 audiocodec specific data structures, enums
+ * and private & public functions.
+ * Author: Deepak Karda
+ * Copyright (C) 2009 ST-Ericsson Pvt. 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
+ *
+ */
+
+#ifndef _U8500_ACODEC_AB8500_H_
+#define _U8500_ACODEC_AB8500_H_
+
+#include <mach/ab8500.h>
+#include <linux/i2s/i2s.h>
+
+#ifdef CONFIG_U8500_AB8500_CUT10
+#include <mach/ab8500_codec_v1_0.h>
+//#include <mach/ab8500_codec_p_v1_0.h>
+#else /*CONFIG_U8500_4500_ED */
+#include <mach/ab8500_codec.h>
+#include <mach/ab8500_codec_p.h>
+#endif
+
+#define NUMBER_OUTPUT_DEVICE				5
+#define NUMBER_INPUT_DEVICE					13
+#define NUMBER_LOOPBACK_STATE				2
+#define NUMBER_SWITCH_STATE					2
+#define NUMBER_POWER_STATE					2
+#define NUMBER_TDM_MODE_STATE				2
+#define NUMBER_DIRECT_RENDERING_STATE		2
+#define NUMBER_PCM_RENDERING_STATE			3
+
+#define CODEC_MUTE      					0x20
+#define DEFAULT_VOLUME      				0x64
+#define DEFAULT_GAIN        				0x32
+#define VOL_MAX                 			0x64
+#define VOL_MIN                 			0x00
+#define DEFAULT_OUTPUT_DEVICE   			AB8500_CODEC_DEST_HEADSET
+#define DEFAULT_INPUT_DEVICE    			AB8500_CODEC_SRC_D_MICROPHONE_1
+#define DEFAULT_LOOPBACK_STATE				DISABLE
+#define DEFAULT_SWITCH_STATE				DISABLE
+#define DEFAULT_TDM8_CH_MODE_STATE			DISABLE
+#define DEFAULT_DIRECT_RENDERING_STATE		DISABLE
+#define DEFAULT_BURST_FIFO_STATE			RENDERING_DISABLE
+#define DEFAULT_FM_PLAYBACK_STATE			RENDERING_DISABLE
+#define DEFAULT_FM_TX_STATE					RENDERING_DISABLE
+
+#define MIN_RATE_PLAYBACK   48000
+#define MAX_RATE_PLAYBACK   48000
+#define MIN_RATE_CAPTURE    48000
+#define MAX_RATE_CAPTURE    48000
+#define MAX_NO_OF_RATES		1
+
+#define ALSA_MSP_BT_NUM 		0
+#define ALSA_MSP_PCM_NUM 		1
+#define ALSA_MSP_HDMI_NUM 		2
+
+#define I2S_CLIENT_MSP0				0
+#define I2S_CLIENT_MSP1				1
+#define I2S_CLIENT_MSP2				2
+
+typedef enum {
+	DISABLE,
+	ENABLE
+} t_u8500_bool_state;
+
+typedef enum {
+	RENDERING_DISABLE,
+	RENDERING_ENABLE,
+	RENDERING_PENDING
+} t_u8500_pmc_rendering_state;
+
+typedef enum {
+	ACODEC_CONFIG_REQUIRED,
+	ACODEC_CONFIG_NOT_REQUIRED
+} t_u8500_acodec_config_need;
+
+typedef enum {
+	CLASSICAL_MODE,
+	TDM_8_CH_MODE
+} t_u8500_mode;
+
+typedef struct {
+	unsigned int left_volume;
+	unsigned int right_volume;
+	unsigned int mute_state;
+	t_u8500_bool_state power_state;
+} u8500_io_dev_config_t;
+
+typedef enum {
+	NO_USER = 0,
+	USER_ALSA = 2,		/*To make it equivalent to user id for MSP */
+	USER_SAA,
+} t_acodec_user;
+
+typedef struct {
+	u8500_io_dev_config_t output_config[NUMBER_OUTPUT_DEVICE];
+	u8500_io_dev_config_t input_config[NUMBER_INPUT_DEVICE];
+	//t_acodec_user  user;
+	t_acodec_user cur_user;
+} t_u8500_codec_system_context;
+
+typedef enum {
+	T_CODEC_SAMPLING_FREQ_48KHZ = 48,
+} acodec_sample_frequency;
+
+struct acodec_configuration {
+	t_ab8500_codec_direction direction;
+	acodec_sample_frequency input_frequency;
+	acodec_sample_frequency output_frequency;
+	codec_msp_srg_clock_sel_type mspClockSel;
+	codec_msp_in_clock_freq_type mspInClockFreq;
+	u32 channels;
+	t_acodec_user user;
+	t_u8500_acodec_config_need acodec_config_need;
+	t_u8500_bool_state direct_rendering_mode;
+	t_u8500_bool_state tdm8_ch_mode;
+	t_u8500_bool_state digital_loopback;
+	void (*handler) (void *data);
+	void *tx_callback_data;
+	void *rx_callback_data;
+};
+
+typedef enum {
+	ACODEC_DISABLE_ALL,
+	ACODEC_DISABLE_TRANSMIT,
+	ACODEC_DISABLE_RECEIVE,
+} t_acodec_disable;
+
+struct i2sdrv_data {
+	struct i2s_device *i2s;
+	spinlock_t i2s_lock;
+	/* buffer is NULL unless this device is open (users > 0) */
+	int flag;
+	u32 tx_status;
+	u32 rx_status;
+};
+
+#define MAX_I2S_CLIENTS 3	//0=BT, 1=ACODEC, 2=HDMI
+
+/*extern t_ab8500_codec_error u8500_acodec_set_volume(int input_vol_left,
+					int input_vol_right,
+					int output_vol_left,
+					int output_vol_right, t_acodec_user user);*/
+
+extern t_ab8500_codec_error u8500_acodec_open(int client_id, int stream_id);
+//extern t_ab8500_codec_error u8500_acodec_pause_transfer(void);
+//extern t_ab8500_codec_error u8500_acodec_unpause_transfer(void);
+extern t_ab8500_codec_error u8500_acodec_send_data(int client_id, void *data,
+						   size_t bytes, int dma_flag);
+extern t_ab8500_codec_error u8500_acodec_receive_data(int client_id, void *data,
+						      size_t bytes,
+						      int dma_flag);
+extern t_ab8500_codec_error u8500_acodec_close(int client_id,
+					       t_acodec_disable flag);
+extern t_ab8500_codec_error u8500_acodec_tx_rx_data(int client_id,
+						    void *tx_data,
+						    size_t tx_bytes,
+						    void *rx_data,
+						    size_t rx_bytes,
+						    int dma_flag);
+
+extern t_ab8500_codec_error u8500_acodec_set_output_volume(t_ab8500_codec_dest
+							   dest_device,
+							   int left_volume,
+							   int right_volume,
+							   t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_get_output_volume(t_ab8500_codec_dest
+							   dest_device,
+							   int *p_left_volume,
+							   int *p_right_volume,
+							   t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_set_input_volume(t_ab8500_codec_src
+							  src_device,
+							  int left_volume,
+							  int right_volume,
+							  t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_get_input_volume(t_ab8500_codec_src
+							  src_device,
+							  int *p_left_volume,
+							  int *p_right_volume,
+							  t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_toggle_analog_lpbk(t_u8500_bool_state
+							    lpbk_state,
+							    t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_toggle_digital_lpbk(t_u8500_bool_state
+							     lpbk_state,
+							     t_ab8500_codec_dest
+							     dest_device,
+							     t_ab8500_codec_src
+							     src_device,
+							     t_acodec_user user,
+							     t_u8500_bool_state
+							     tdm8_ch_mode);
+
+extern t_ab8500_codec_error
+u8500_acodec_toggle_playback_mute_control(t_ab8500_codec_dest dest_device,
+					  t_u8500_bool_state mute_state,
+					  t_acodec_user user);
+extern t_ab8500_codec_error
+u8500_acodec_toggle_capture_mute_control(t_ab8500_codec_src src_device,
+					 t_u8500_bool_state mute_state,
+					 t_acodec_user user);
+
+extern t_ab8500_codec_error u8500_acodec_enable_audio_mode(struct
+							   acodec_configuration
+							   *acodec_config);
+/*extern t_ab8500_codec_error u8500_acodec_enable_voice_mode(struct acodec_configuration *acodec_config);*/
+
+extern t_ab8500_codec_error u8500_acodec_select_input(t_ab8500_codec_src
+						      input_device,
+						      t_acodec_user user,
+						      t_u8500_mode mode);
+extern t_ab8500_codec_error u8500_acodec_select_output(t_ab8500_codec_dest
+						       output_device,
+						       t_acodec_user user,
+						       t_u8500_mode mode);
+
+extern t_ab8500_codec_error u8500_acodec_allocate_ad_slot(t_ab8500_codec_src
+							  input_device,
+							  t_u8500_mode mode);
+extern t_ab8500_codec_error u8500_acodec_unallocate_ad_slot(t_ab8500_codec_src
+							    input_device,
+							    t_u8500_mode mode);
+extern t_ab8500_codec_error u8500_acodec_allocate_da_slot(t_ab8500_codec_dest
+							  output_device,
+							  t_u8500_mode mode);
+extern t_ab8500_codec_error u8500_acodec_unallocate_da_slot(t_ab8500_codec_dest
+							    output_device,
+							    t_u8500_mode mode);
+
+extern t_ab8500_codec_error u8500_acodec_set_src_power_cntrl(t_ab8500_codec_src
+							     input_device,
+							     t_u8500_bool_state
+							     pwr_state);
+extern t_ab8500_codec_error
+u8500_acodec_set_dest_power_cntrl(t_ab8500_codec_dest output_device,
+				  t_u8500_bool_state pwr_state);
+
+extern t_u8500_bool_state u8500_acodec_get_src_power_state(t_ab8500_codec_src
+							   input_device);
+extern t_u8500_bool_state u8500_acodec_get_dest_power_state(t_ab8500_codec_dest
+							    output_device);
+extern t_ab8500_codec_error
+u8500_acodec_set_burst_mode_fifo(t_u8500_pmc_rendering_state fifo_state);
+
+extern t_ab8500_codec_error u8500_acodec_unsetuser(t_acodec_user user);
+extern t_ab8500_codec_error u8500_acodec_setuser(t_acodec_user user);
+
+extern void codec_power_init(void);
+extern void u8500_acodec_powerdown(void);
+
+//t_ab8500_codec_error acodec_msp_enable(t_touareg_codec_sample_frequency freq,int channels, t_acodec_user user);
+
+#define TRG_CODEC_ADDRESS_ON_SPI_BUS 	(0x0D)
+
+extern int ab8500_write(u8 block, u32 adr, u8 data);
+extern int ab8500_read(u8 block, u32 adr);
+
+#if 0
+#define FUNC_ENTER() printk("\n -Enter : %s",__FUNCTION__)
+#define FUNC_EXIT()  printk("\n -Exit  : %s",__FUNCTION__)
+#else
+#define FUNC_ENTER()
+#define FUNC_EXIT()
+#endif
+#endif /*END OF HEADSER FILE */