[media] MFD: WL1273 FM Radio: MFD driver for the FM radio
This is the core of the WL1273 FM radio driver, it connects
the two child modules. The two child drivers are
drivers/media/radio/radio-wl1273.c and sound/soc/codecs/wl1273.c.
The radio-wl1273 driver implements the V4L2 interface and communicates
with the device. The ALSA codec offers digital audio, without it only
analog audio is available.
Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/linux/mfd/wl1273-core.h b/include/linux/mfd/wl1273-core.h
new file mode 100644
index 0000000..9787293
--- /dev/null
+++ b/include/linux/mfd/wl1273-core.h
@@ -0,0 +1,288 @@
+/*
+ * 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>
+ *
+ * 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.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#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 (*write)(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 */