include/linux/mfd/wl1273-core.h - third_party/kernel - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * include/linux/mfd/wl1273-core.h
  *
  * Some definitions for the wl1273 radio receiver/transmitter chip.
  *
  * Copyright (C) 2010 Nokia Corporation
  * Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
  */

 #ifndef WL1273_CORE_H
 #define WL1273_CORE_H

 #include <linux/i2c.h>
 #include <linux/mfd/core.h>

 #define WL1273_FM_DRIVER_NAME	"wl1273-fm"
 #define RX71_FM_I2C_ADDR	0x22

 #define WL1273_STEREO_GET		0
 #define WL1273_RSSI_LVL_GET		1
 #define WL1273_IF_COUNT_GET		2
 #define WL1273_FLAG_GET			3
 #define WL1273_RDS_SYNC_GET		4
 #define WL1273_RDS_DATA_GET		5
 #define WL1273_FREQ_SET			10
 #define WL1273_AF_FREQ_SET		11
 #define WL1273_MOST_MODE_SET		12
 #define WL1273_MOST_BLEND_SET		13
 #define WL1273_DEMPH_MODE_SET		14
 #define WL1273_SEARCH_LVL_SET		15
 #define WL1273_BAND_SET			16
 #define WL1273_MUTE_STATUS_SET		17
 #define WL1273_RDS_PAUSE_LVL_SET	18
 #define WL1273_RDS_PAUSE_DUR_SET	19
 #define WL1273_RDS_MEM_SET		20
 #define WL1273_RDS_BLK_B_SET		21
 #define WL1273_RDS_MSK_B_SET		22
 #define WL1273_RDS_PI_MASK_SET		23
 #define WL1273_RDS_PI_SET		24
 #define WL1273_RDS_SYSTEM_SET		25
 #define WL1273_INT_MASK_SET		26
 #define WL1273_SEARCH_DIR_SET		27
 #define WL1273_VOLUME_SET		28
 #define WL1273_AUDIO_ENABLE		29
 #define WL1273_PCM_MODE_SET		30
 #define WL1273_I2S_MODE_CONFIG_SET	31
 #define WL1273_POWER_SET		32
 #define WL1273_INTX_CONFIG_SET		33
 #define WL1273_PULL_EN_SET		34
 #define WL1273_HILO_SET			35
 #define WL1273_SWITCH2FREF		36
 #define WL1273_FREQ_DRIFT_REPORT	37

 #define WL1273_PCE_GET			40
 #define WL1273_FIRM_VER_GET		41
 #define WL1273_ASIC_VER_GET		42
 #define WL1273_ASIC_ID_GET		43
 #define WL1273_MAN_ID_GET		44
 #define WL1273_TUNER_MODE_SET		45
 #define WL1273_STOP_SEARCH		46
 #define WL1273_RDS_CNTRL_SET		47

 #define WL1273_WRITE_HARDWARE_REG	100
 #define WL1273_CODE_DOWNLOAD		101
 #define WL1273_RESET			102

 #define WL1273_FM_POWER_MODE		254
 #define WL1273_FM_INTERRUPT		255

 /* Transmitter API */

 #define WL1273_CHANL_SET			55
 #define WL1273_SCAN_SPACING_SET			56
 #define WL1273_REF_SET				57
 #define WL1273_POWER_ENB_SET			90
 #define WL1273_POWER_ATT_SET			58
 #define WL1273_POWER_LEV_SET			59
 #define WL1273_AUDIO_DEV_SET			60
 #define WL1273_PILOT_DEV_SET			61
 #define WL1273_RDS_DEV_SET			62
 #define WL1273_PUPD_SET				91
 #define WL1273_AUDIO_IO_SET			63
 #define WL1273_PREMPH_SET			64
 #define WL1273_MONO_SET				66
 #define WL1273_MUTE				92
 #define WL1273_MPX_LMT_ENABLE			67
 #define WL1273_PI_SET				93
 #define WL1273_ECC_SET				69
 #define WL1273_PTY				70
 #define WL1273_AF				71
 #define WL1273_DISPLAY_MODE			74
 #define WL1273_RDS_REP_SET			77
 #define WL1273_RDS_CONFIG_DATA_SET		98
 #define WL1273_RDS_DATA_SET			99
 #define WL1273_RDS_DATA_ENB			94
 #define WL1273_TA_SET				78
 #define WL1273_TP_SET				79
 #define WL1273_DI_SET				80
 #define WL1273_MS_SET				81
 #define WL1273_PS_SCROLL_SPEED			82
 #define WL1273_TX_AUDIO_LEVEL_TEST		96
 #define WL1273_TX_AUDIO_LEVEL_TEST_THRESHOLD	73
 #define WL1273_TX_AUDIO_INPUT_LEVEL_RANGE_SET	54
 #define WL1273_RX_ANTENNA_SELECT		87
 #define WL1273_I2C_DEV_ADDR_SET			86
 #define WL1273_REF_ERR_CALIB_PARAM_SET		88
 #define WL1273_REF_ERR_CALIB_PERIODICITY_SET	89
 #define WL1273_SOC_INT_TRIGGER			52
 #define WL1273_SOC_AUDIO_PATH_SET		83
 #define WL1273_SOC_PCMI_OVERRIDE		84
 #define WL1273_SOC_I2S_OVERRIDE			85
 #define WL1273_RSSI_BLOCK_SCAN_FREQ_SET		95
 #define WL1273_RSSI_BLOCK_SCAN_START		97
 #define WL1273_RSSI_BLOCK_SCAN_DATA_GET		5
 #define WL1273_READ_FMANT_TUNE_VALUE		104

 #define WL1273_RDS_OFF		0
 #define WL1273_RDS_ON		1
 #define WL1273_RDS_RESET	2

 #define WL1273_AUDIO_DIGITAL	0
 #define WL1273_AUDIO_ANALOG	1

 #define WL1273_MODE_RX		BIT(0)
 #define WL1273_MODE_TX		BIT(1)
 #define WL1273_MODE_OFF		BIT(2)
 #define WL1273_MODE_SUSPENDED	BIT(3)

 #define WL1273_RADIO_CHILD	BIT(0)
 #define WL1273_CODEC_CHILD	BIT(1)

 #define WL1273_RX_MONO		1
 #define WL1273_RX_STEREO	0
 #define WL1273_TX_MONO		0
 #define WL1273_TX_STEREO	1

 #define WL1273_MAX_VOLUME	0xffff
 #define WL1273_DEFAULT_VOLUME	0x78b8

 /* I2S protocol, left channel first, data width 16 bits */
 #define WL1273_PCM_DEF_MODE		0x00

 /* Rx */
 #define WL1273_AUDIO_ENABLE_I2S		BIT(0)
 #define WL1273_AUDIO_ENABLE_ANALOG	BIT(1)

 /* Tx */
 #define WL1273_AUDIO_IO_SET_ANALOG	0
 #define WL1273_AUDIO_IO_SET_I2S		1

 #define WL1273_PUPD_SET_OFF		0x00
 #define WL1273_PUPD_SET_ON		0x01
 #define WL1273_PUPD_SET_RETENTION	0x10

 /* I2S mode */
 #define WL1273_IS2_WIDTH_32	0x0
 #define WL1273_IS2_WIDTH_40	0x1
 #define WL1273_IS2_WIDTH_22_23	0x2
 #define WL1273_IS2_WIDTH_23_22	0x3
 #define WL1273_IS2_WIDTH_48	0x4
 #define WL1273_IS2_WIDTH_50	0x5
 #define WL1273_IS2_WIDTH_60	0x6
 #define WL1273_IS2_WIDTH_64	0x7
 #define WL1273_IS2_WIDTH_80	0x8
 #define WL1273_IS2_WIDTH_96	0x9
 #define WL1273_IS2_WIDTH_128	0xa
 #define WL1273_IS2_WIDTH	0xf

 #define WL1273_IS2_FORMAT_STD	(0x0 << 4)
 #define WL1273_IS2_FORMAT_LEFT	(0x1 << 4)
 #define WL1273_IS2_FORMAT_RIGHT	(0x2 << 4)
 #define WL1273_IS2_FORMAT_USER	(0x3 << 4)

 #define WL1273_IS2_MASTER	(0x0 << 6)
 #define WL1273_IS2_SLAVEW	(0x1 << 6)

 #define WL1273_IS2_TRI_AFTER_SENDING	(0x0 << 7)
 #define WL1273_IS2_TRI_ALWAYS_ACTIVE	(0x1 << 7)

 #define WL1273_IS2_SDOWS_RR	(0x0 << 8)
 #define WL1273_IS2_SDOWS_RF	(0x1 << 8)
 #define WL1273_IS2_SDOWS_FR	(0x2 << 8)
 #define WL1273_IS2_SDOWS_FF	(0x3 << 8)

 #define WL1273_IS2_TRI_OPT	(0x0 << 10)
 #define WL1273_IS2_TRI_ALWAYS	(0x1 << 10)

 #define WL1273_IS2_RATE_48K	(0x0 << 12)
 #define WL1273_IS2_RATE_44_1K	(0x1 << 12)
 #define WL1273_IS2_RATE_32K	(0x2 << 12)
 #define WL1273_IS2_RATE_22_05K	(0x4 << 12)
 #define WL1273_IS2_RATE_16K	(0x5 << 12)
 #define WL1273_IS2_RATE_12K	(0x8 << 12)
 #define WL1273_IS2_RATE_11_025	(0x9 << 12)
 #define WL1273_IS2_RATE_8K	(0xa << 12)
 #define WL1273_IS2_RATE		(0xf << 12)

 #define WL1273_I2S_DEF_MODE	(WL1273_IS2_WIDTH_32 | \
 				 WL1273_IS2_FORMAT_STD | \
 				 WL1273_IS2_MASTER | \
 				 WL1273_IS2_TRI_AFTER_SENDING | \
 				 WL1273_IS2_SDOWS_RR | \
 				 WL1273_IS2_TRI_OPT | \
 				 WL1273_IS2_RATE_48K)

 #define SCHAR_MIN (-128)
 #define SCHAR_MAX 127

 #define WL1273_FR_EVENT			BIT(0)
 #define WL1273_BL_EVENT			BIT(1)
 #define WL1273_RDS_EVENT		BIT(2)
 #define WL1273_BBLK_EVENT		BIT(3)
 #define WL1273_LSYNC_EVENT		BIT(4)
 #define WL1273_LEV_EVENT		BIT(5)
 #define WL1273_IFFR_EVENT		BIT(6)
 #define WL1273_PI_EVENT			BIT(7)
 #define WL1273_PD_EVENT			BIT(8)
 #define WL1273_STIC_EVENT		BIT(9)
 #define WL1273_MAL_EVENT		BIT(10)
 #define WL1273_POW_ENB_EVENT		BIT(11)
 #define WL1273_SCAN_OVER_EVENT		BIT(12)
 #define WL1273_ERROR_EVENT		BIT(13)

 #define TUNER_MODE_STOP_SEARCH		0
 #define TUNER_MODE_PRESET		1
 #define TUNER_MODE_AUTO_SEEK		2
 #define TUNER_MODE_AF			3
 #define TUNER_MODE_AUTO_SEEK_PI		4
 #define TUNER_MODE_AUTO_SEEK_BULK	5

 #define RDS_BLOCK_SIZE	3

 struct wl1273_fm_platform_data {
 	int (*request_resources) (struct i2c_client *client);
 	void (*free_resources) (void);
 	void (*enable) (void);
 	void (*disable) (void);

 	u8 forbidden_modes;
 	unsigned int children;
 };

 #define WL1273_FM_CORE_CELLS	2

 #define WL1273_BAND_OTHER	0
 #define WL1273_BAND_JAPAN	1

 #define WL1273_BAND_JAPAN_LOW	76000
 #define WL1273_BAND_JAPAN_HIGH	90000
 #define WL1273_BAND_OTHER_LOW	87500
 #define WL1273_BAND_OTHER_HIGH	108000

 #define WL1273_BAND_TX_LOW	76000
 #define WL1273_BAND_TX_HIGH	108000

 struct wl1273_core {
 	struct mfd_cell cells[WL1273_FM_CORE_CELLS];
 	struct wl1273_fm_platform_data *pdata;

 	unsigned int mode;
 	unsigned int i2s_mode;
 	unsigned int volume;
 	unsigned int audio_mode;
 	unsigned int channel_number;
 	struct mutex lock; /* for serializing fm radio operations */

 	struct i2c_client *client;

 	int (*read)(struct wl1273_core *core, u8, u16 *);
 	int (*write)(struct wl1273_core *core, u8, u16);
 	int (*write_data)(struct wl1273_core *core, u8 *, u16);
 	int (*set_audio)(struct wl1273_core *core, unsigned int);
 	int (*set_volume)(struct wl1273_core *core, unsigned int);
 };

 #endif	/* ifndef WL1273_CORE_H */
	/* SPDX-License-Identifier: GPL-2.0-only */
	/*
	* include/linux/mfd/wl1273-core.h
	*
	* Some definitions for the wl1273 radio receiver/transmitter chip.
	*
	* Copyright (C) 2010 Nokia Corporation
	* Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
	*/

	#ifndef WL1273_CORE_H
	#define WL1273_CORE_H

	#include <linux/i2c.h>
	#include <linux/mfd/core.h>

	#define WL1273_FM_DRIVER_NAME "wl1273-fm"
	#define RX71_FM_I2C_ADDR 0x22

	#define WL1273_STEREO_GET 0
	#define WL1273_RSSI_LVL_GET 1
	#define WL1273_IF_COUNT_GET 2
	#define WL1273_FLAG_GET 3
	#define WL1273_RDS_SYNC_GET 4
	#define WL1273_RDS_DATA_GET 5
	#define WL1273_FREQ_SET 10
	#define WL1273_AF_FREQ_SET 11
	#define WL1273_MOST_MODE_SET 12
	#define WL1273_MOST_BLEND_SET 13
	#define WL1273_DEMPH_MODE_SET 14
	#define WL1273_SEARCH_LVL_SET 15
	#define WL1273_BAND_SET 16
	#define WL1273_MUTE_STATUS_SET 17
	#define WL1273_RDS_PAUSE_LVL_SET 18
	#define WL1273_RDS_PAUSE_DUR_SET 19
	#define WL1273_RDS_MEM_SET 20
	#define WL1273_RDS_BLK_B_SET 21
	#define WL1273_RDS_MSK_B_SET 22
	#define WL1273_RDS_PI_MASK_SET 23
	#define WL1273_RDS_PI_SET 24
	#define WL1273_RDS_SYSTEM_SET 25
	#define WL1273_INT_MASK_SET 26
	#define WL1273_SEARCH_DIR_SET 27
	#define WL1273_VOLUME_SET 28
	#define WL1273_AUDIO_ENABLE 29
	#define WL1273_PCM_MODE_SET 30
	#define WL1273_I2S_MODE_CONFIG_SET 31
	#define WL1273_POWER_SET 32
	#define WL1273_INTX_CONFIG_SET 33
	#define WL1273_PULL_EN_SET 34
	#define WL1273_HILO_SET 35
	#define WL1273_SWITCH2FREF 36
	#define WL1273_FREQ_DRIFT_REPORT 37

	#define WL1273_PCE_GET 40
	#define WL1273_FIRM_VER_GET 41
	#define WL1273_ASIC_VER_GET 42
	#define WL1273_ASIC_ID_GET 43
	#define WL1273_MAN_ID_GET 44
	#define WL1273_TUNER_MODE_SET 45
	#define WL1273_STOP_SEARCH 46
	#define WL1273_RDS_CNTRL_SET 47

	#define WL1273_WRITE_HARDWARE_REG 100
	#define WL1273_CODE_DOWNLOAD 101
	#define WL1273_RESET 102

	#define WL1273_FM_POWER_MODE 254
	#define WL1273_FM_INTERRUPT 255

	/* Transmitter API */

	#define WL1273_CHANL_SET 55
	#define WL1273_SCAN_SPACING_SET 56
	#define WL1273_REF_SET 57
	#define WL1273_POWER_ENB_SET 90
	#define WL1273_POWER_ATT_SET 58
	#define WL1273_POWER_LEV_SET 59
	#define WL1273_AUDIO_DEV_SET 60
	#define WL1273_PILOT_DEV_SET 61
	#define WL1273_RDS_DEV_SET 62
	#define WL1273_PUPD_SET 91
	#define WL1273_AUDIO_IO_SET 63
	#define WL1273_PREMPH_SET 64
	#define WL1273_MONO_SET 66
	#define WL1273_MUTE 92
	#define WL1273_MPX_LMT_ENABLE 67
	#define WL1273_PI_SET 93
	#define WL1273_ECC_SET 69
	#define WL1273_PTY 70
	#define WL1273_AF 71
	#define WL1273_DISPLAY_MODE 74
	#define WL1273_RDS_REP_SET 77
	#define WL1273_RDS_CONFIG_DATA_SET 98
	#define WL1273_RDS_DATA_SET 99
	#define WL1273_RDS_DATA_ENB 94
	#define WL1273_TA_SET 78
	#define WL1273_TP_SET 79
	#define WL1273_DI_SET 80
	#define WL1273_MS_SET 81
	#define WL1273_PS_SCROLL_SPEED 82
	#define WL1273_TX_AUDIO_LEVEL_TEST 96
	#define WL1273_TX_AUDIO_LEVEL_TEST_THRESHOLD 73
	#define WL1273_TX_AUDIO_INPUT_LEVEL_RANGE_SET 54
	#define WL1273_RX_ANTENNA_SELECT 87
	#define WL1273_I2C_DEV_ADDR_SET 86
	#define WL1273_REF_ERR_CALIB_PARAM_SET 88
	#define WL1273_REF_ERR_CALIB_PERIODICITY_SET 89
	#define WL1273_SOC_INT_TRIGGER 52
	#define WL1273_SOC_AUDIO_PATH_SET 83
	#define WL1273_SOC_PCMI_OVERRIDE 84
	#define WL1273_SOC_I2S_OVERRIDE 85
	#define WL1273_RSSI_BLOCK_SCAN_FREQ_SET 95
	#define WL1273_RSSI_BLOCK_SCAN_START 97
	#define WL1273_RSSI_BLOCK_SCAN_DATA_GET 5
	#define WL1273_READ_FMANT_TUNE_VALUE 104

	#define WL1273_RDS_OFF 0
	#define WL1273_RDS_ON 1
	#define WL1273_RDS_RESET 2

	#define WL1273_AUDIO_DIGITAL 0
	#define WL1273_AUDIO_ANALOG 1

	#define WL1273_MODE_RX BIT(0)
	#define WL1273_MODE_TX BIT(1)
	#define WL1273_MODE_OFF BIT(2)
	#define WL1273_MODE_SUSPENDED BIT(3)

	#define WL1273_RADIO_CHILD BIT(0)
	#define WL1273_CODEC_CHILD BIT(1)

	#define WL1273_RX_MONO 1
	#define WL1273_RX_STEREO 0
	#define WL1273_TX_MONO 0
	#define WL1273_TX_STEREO 1

	#define WL1273_MAX_VOLUME 0xffff
	#define WL1273_DEFAULT_VOLUME 0x78b8

	/* I2S protocol, left channel first, data width 16 bits */
	#define WL1273_PCM_DEF_MODE 0x00

	/* Rx */
	#define WL1273_AUDIO_ENABLE_I2S BIT(0)
	#define WL1273_AUDIO_ENABLE_ANALOG BIT(1)

	/* Tx */
	#define WL1273_AUDIO_IO_SET_ANALOG 0
	#define WL1273_AUDIO_IO_SET_I2S 1

	#define WL1273_PUPD_SET_OFF 0x00
	#define WL1273_PUPD_SET_ON 0x01
	#define WL1273_PUPD_SET_RETENTION 0x10

	/* I2S mode */
	#define WL1273_IS2_WIDTH_32 0x0
	#define WL1273_IS2_WIDTH_40 0x1
	#define WL1273_IS2_WIDTH_22_23 0x2
	#define WL1273_IS2_WIDTH_23_22 0x3
	#define WL1273_IS2_WIDTH_48 0x4
	#define WL1273_IS2_WIDTH_50 0x5
	#define WL1273_IS2_WIDTH_60 0x6
	#define WL1273_IS2_WIDTH_64 0x7
	#define WL1273_IS2_WIDTH_80 0x8
	#define WL1273_IS2_WIDTH_96 0x9
	#define WL1273_IS2_WIDTH_128 0xa
	#define WL1273_IS2_WIDTH 0xf

	#define WL1273_IS2_FORMAT_STD (0x0 << 4)
	#define WL1273_IS2_FORMAT_LEFT (0x1 << 4)
	#define WL1273_IS2_FORMAT_RIGHT (0x2 << 4)
	#define WL1273_IS2_FORMAT_USER (0x3 << 4)

	#define WL1273_IS2_MASTER (0x0 << 6)
	#define WL1273_IS2_SLAVEW (0x1 << 6)

	#define WL1273_IS2_TRI_AFTER_SENDING (0x0 << 7)
	#define WL1273_IS2_TRI_ALWAYS_ACTIVE (0x1 << 7)

	#define WL1273_IS2_SDOWS_RR (0x0 << 8)
	#define WL1273_IS2_SDOWS_RF (0x1 << 8)
	#define WL1273_IS2_SDOWS_FR (0x2 << 8)
	#define WL1273_IS2_SDOWS_FF (0x3 << 8)

	#define WL1273_IS2_TRI_OPT (0x0 << 10)
	#define WL1273_IS2_TRI_ALWAYS (0x1 << 10)

	#define WL1273_IS2_RATE_48K (0x0 << 12)
	#define WL1273_IS2_RATE_44_1K (0x1 << 12)
	#define WL1273_IS2_RATE_32K (0x2 << 12)
	#define WL1273_IS2_RATE_22_05K (0x4 << 12)
	#define WL1273_IS2_RATE_16K (0x5 << 12)
	#define WL1273_IS2_RATE_12K (0x8 << 12)
	#define WL1273_IS2_RATE_11_025 (0x9 << 12)
	#define WL1273_IS2_RATE_8K (0xa << 12)
	#define WL1273_IS2_RATE (0xf << 12)

	#define WL1273_I2S_DEF_MODE (WL1273_IS2_WIDTH_32 \| \
	WL1273_IS2_FORMAT_STD \| \
	WL1273_IS2_MASTER \| \
	WL1273_IS2_TRI_AFTER_SENDING \| \
	WL1273_IS2_SDOWS_RR \| \
	WL1273_IS2_TRI_OPT \| \
	WL1273_IS2_RATE_48K)

	#define SCHAR_MIN (-128)
	#define SCHAR_MAX 127

	#define WL1273_FR_EVENT BIT(0)
	#define WL1273_BL_EVENT BIT(1)
	#define WL1273_RDS_EVENT BIT(2)
	#define WL1273_BBLK_EVENT BIT(3)
	#define WL1273_LSYNC_EVENT BIT(4)
	#define WL1273_LEV_EVENT BIT(5)
	#define WL1273_IFFR_EVENT BIT(6)
	#define WL1273_PI_EVENT BIT(7)
	#define WL1273_PD_EVENT BIT(8)
	#define WL1273_STIC_EVENT BIT(9)
	#define WL1273_MAL_EVENT BIT(10)
	#define WL1273_POW_ENB_EVENT BIT(11)
	#define WL1273_SCAN_OVER_EVENT BIT(12)
	#define WL1273_ERROR_EVENT BIT(13)

	#define TUNER_MODE_STOP_SEARCH 0
	#define TUNER_MODE_PRESET 1
	#define TUNER_MODE_AUTO_SEEK 2
	#define TUNER_MODE_AF 3
	#define TUNER_MODE_AUTO_SEEK_PI 4
	#define TUNER_MODE_AUTO_SEEK_BULK 5

	#define RDS_BLOCK_SIZE 3

	struct wl1273_fm_platform_data {
	int (request_resources) (struct i2c_client client);
	void (*free_resources) (void);
	void (*enable) (void);
	void (*disable) (void);

	u8 forbidden_modes;
	unsigned int children;
	};

	#define WL1273_FM_CORE_CELLS 2

	#define WL1273_BAND_OTHER 0
	#define WL1273_BAND_JAPAN 1

	#define WL1273_BAND_JAPAN_LOW 76000
	#define WL1273_BAND_JAPAN_HIGH 90000
	#define WL1273_BAND_OTHER_LOW 87500
	#define WL1273_BAND_OTHER_HIGH 108000

	#define WL1273_BAND_TX_LOW 76000
	#define WL1273_BAND_TX_HIGH 108000

	struct wl1273_core {
	struct mfd_cell cells[WL1273_FM_CORE_CELLS];
	struct wl1273_fm_platform_data *pdata;

	unsigned int mode;
	unsigned int i2s_mode;
	unsigned int volume;
	unsigned int audio_mode;
	unsigned int channel_number;
	struct mutex lock; /* for serializing fm radio operations */

	struct i2c_client *client;

	int (read)(struct wl1273_core core, u8, u16 *);
	int (write)(struct wl1273_core core, u8, u16);
	int (write_data)(struct wl1273_core core, u8 *, u16);
	int (set_audio)(struct wl1273_core core, unsigned int);
	int (set_volume)(struct wl1273_core core, unsigned int);
	};

	#endif /* ifndef WL1273_CORE_H */