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media: remove dead TI wl128x FM radio driver

Browse Source 
Commit 78fe66360e ("misc: ti-st: st_kim: remove the driver") deletes the
ti-st driver and its corresponding config option TI_ST.

With that deletion, the Texas Instruments WL128x FM Radio driver is now
dead as well. Delete this obsolete driver.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Lukas Bulwahn 2024-10-28 09:30:30 +01:00 committed by Hans Verkuil
parent 1378ffec30
commit 945215ee45
13 changed files with 0 additions and 4247 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/media/radio/Kconfig
View File

@ -221,10 +221,6 @@ config USB_RAREMONO
source "drivers/media/radio/si470x/Kconfig"
source "drivers/media/radio/si4713/Kconfig"
# TI's ST based wl128x FM radio
source "drivers/media/radio/wl128x/Kconfig"
#
# ISA drivers configuration
#

1
drivers/media/radio/Makefile
View File

@ -31,7 +31,6 @@ obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o
obj-$(CONFIG_RADIO_TRUST) += radio-trust.o
obj-$(CONFIG_RADIO_TYPHOON) += radio-typhoon.o
obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o
obj-$(CONFIG_RADIO_WL128X) += wl128x/
obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o
obj-$(CONFIG_USB_DSBR) += dsbr100.o

15
drivers/media/radio/wl128x/Kconfig
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@ -1,15 +0,0 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# TI's wl128x FM driver based on TI's ST driver.
#
config RADIO_WL128X
tristate "Texas Instruments WL128x FM Radio"
depends on VIDEO_DEV && RFKILL && TTY && TI_ST
depends on GPIOLIB || COMPILE_TEST
help
Choose Y here if you have this FM radio chip.
In order to control your radio card, you will need to use programs
that are compatible with the Video For Linux 2 API. Information on
this API and pointers to "v4l2" programs may be found at
<file:Documentation/userspace-api/media/index.rst>.

7
drivers/media/radio/wl128x/Makefile
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@ -1,7 +0,0 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for TI's shared transport driver based wl128x
# FM radio.
#
obj-$(CONFIG_RADIO_WL128X) += fm_drv.o
fm_drv-objs := fmdrv_common.o fmdrv_rx.o fmdrv_tx.o fmdrv_v4l2.o

229
drivers/media/radio/wl128x/fmdrv.h
View File

@ -1,229 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* FM Driver for Connectivity chip of Texas Instruments.
*
* Common header for all FM driver sub-modules.
*
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _FM_DRV_H
#define _FM_DRV_H
#include <linux/skbuff.h>
#include <linux/interrupt.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#define FM_DRV_VERSION "0.1.1"
#define FM_DRV_NAME "ti_fmdrv"
#define FM_DRV_CARD_SHORT_NAME "TI FM Radio"
#define FM_DRV_CARD_LONG_NAME "Texas Instruments FM Radio"
/* Flag info */
#define FM_INTTASK_RUNNING 0
#define FM_INTTASK_SCHEDULE_PENDING 1
#define FM_FW_DW_INPROGRESS 2
#define FM_CORE_READY 3
#define FM_CORE_TRANSPORT_READY 4
#define FM_AF_SWITCH_INPROGRESS 5
#define FM_CORE_TX_XMITING 6
#define FM_TUNE_COMPLETE 0x1
#define FM_BAND_LIMIT 0x2
#define FM_DRV_TX_TIMEOUT (5*HZ) /* 5 seconds */
#define FM_DRV_RX_SEEK_TIMEOUT (20*HZ) /* 20 seconds */
#define fmerr(format, ...) \
printk(KERN_ERR "fmdrv: " format, ## __VA_ARGS__)
#define fmwarn(format, ...) \
printk(KERN_WARNING "fmdrv: " format, ##__VA_ARGS__)
#ifdef DEBUG
#define fmdbg(format, ...) \
printk(KERN_DEBUG "fmdrv: " format, ## __VA_ARGS__)
#else /* DEBUG */
#define fmdbg(format, ...) do {} while(0)
#endif
enum {
FM_MODE_OFF,
FM_MODE_TX,
FM_MODE_RX,
FM_MODE_ENTRY_MAX
};
#define FM_RX_RDS_INFO_FIELD_MAX 8 /* 4 Group * 2 Bytes */
/* RX RDS data format */
struct fm_rdsdata_format {
union {
struct {
u8 buff[FM_RX_RDS_INFO_FIELD_MAX];
} groupdatabuff;
struct {
u16 pidata;
u8 blk_b[2];
u8 blk_c[2];
u8 blk_d[2];
} groupgeneral;
struct {
u16 pidata;
u8 blk_b[2];
u8 af[2];
u8 ps[2];
} group0A;
struct {
u16 pi[2];
u8 blk_b[2];
u8 ps[2];
} group0B;
} data;
};
/* FM region (Europe/US, Japan) info */
struct region_info {
u32 chanl_space;
u32 bot_freq;
u32 top_freq;
u8 fm_band;
};
struct fmdev;
typedef void (*int_handler_prototype) (struct fmdev *);
/* FM Interrupt processing related info */
struct fm_irq {
u8 stage;
u16 flag; /* FM interrupt flag */
u16 mask; /* FM interrupt mask */
/* Interrupt process timeout handler */
struct timer_list timer;
u8 retry;
int_handler_prototype *handlers;
};
/* RDS info */
struct fm_rds {
u8 flag; /* RX RDS on/off status */
u8 last_blk_idx; /* Last received RDS block */
/* RDS buffer */
wait_queue_head_t read_queue;
u32 buf_size; /* Size is always multiple of 3 */
u32 wr_idx;
u32 rd_idx;
u8 *buff;
};
#define FM_RDS_MAX_AF_LIST 25
/*
* Current RX channel Alternate Frequency cache.
* This info is used to switch to other freq (AF)
* when current channel signal strength is below RSSI threshold.
*/
struct tuned_station_info {
u16 picode;
u32 af_cache[FM_RDS_MAX_AF_LIST];
u8 afcache_size;
u8 af_list_max;
};
/* FM RX mode info */
struct fm_rx {
struct region_info region; /* Current selected band */
u32 freq; /* Current RX frquency */
u8 mute_mode; /* Current mute mode */
u8 deemphasis_mode; /* Current deemphasis mode */
/* RF dependent soft mute mode */
u8 rf_depend_mute;
u16 volume; /* Current volume level */
u16 rssi_threshold; /* Current RSSI threshold level */
/* Holds the index of the current AF jump */
u8 afjump_idx;
/* Will hold the frequency before the jump */
u32 freq_before_jump;
u8 rds_mode; /* RDS operation mode (RDS/RDBS) */
u8 af_mode; /* Alternate frequency on/off */
struct tuned_station_info stat_info;
struct fm_rds rds;
};
#define FMTX_RDS_TXT_STR_SIZE 25
/*
* FM TX RDS data
*
* @ text_type: is the text following PS or RT
* @ text: radio text string which could either be PS or RT
* @ af_freq: alternate frequency for Tx
* TODO: to be declared in application
*/
struct tx_rds {
u8 text_type;
u8 text[FMTX_RDS_TXT_STR_SIZE];
u8 flag;
u32 af_freq;
};
/*
* FM TX global data
*
* @ pwr_lvl: Power Level of the Transmission from mixer control
* @ xmit_state: Transmission state = Updated locally upon Start/Stop
* @ audio_io: i2S/Analog
* @ tx_frq: Transmission frequency
*/
struct fmtx_data {
u8 pwr_lvl;
u8 xmit_state;
u8 audio_io;
u8 region;
u16 aud_mode;
u32 preemph;
u32 tx_frq;
struct tx_rds rds;
};
/* FM driver operation structure */
struct fmdev {
struct video_device *radio_dev; /* V4L2 video device pointer */
struct v4l2_device v4l2_dev; /* V4L2 top level struct */
struct snd_card *card; /* Card which holds FM mixer controls */
u16 asci_id;
spinlock_t rds_buff_lock; /* To protect access to RDS buffer */
spinlock_t resp_skb_lock; /* To protect access to received SKB */
long flag; /* FM driver state machine info */
int streg_cbdata; /* status of ST registration */
struct sk_buff_head rx_q; /* RX queue */
struct work_struct rx_bh_work; /* RX BH Work */
struct sk_buff_head tx_q; /* TX queue */
struct work_struct tx_bh_work; /* TX BH Work */
unsigned long last_tx_jiffies; /* Timestamp of last pkt sent */
atomic_t tx_cnt; /* Number of packets can send at a time */
struct sk_buff *resp_skb; /* Response from the chip */
/* Main task completion handler */
struct completion maintask_comp;
/* Opcode of last command sent to the chip */
u8 pre_op;
/* Handler used for wakeup when response packet is received */
struct completion *resp_comp;
struct fm_irq irq_info;
u8 curr_fmmode; /* Current FM chip mode (TX, RX, OFF) */
struct fm_rx rx; /* FM receiver info */
struct fmtx_data tx_data;
/* V4L2 ctrl framework handler*/
struct v4l2_ctrl_handler ctrl_handler;
/* For core assisted locking */
struct mutex mutex;
};
#endif

1676
drivers/media/radio/wl128x/fmdrv_common.c
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File diff suppressed because it is too large Load Diff

389
drivers/media/radio/wl128x/fmdrv_common.h
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@ -1,389 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* FM Driver for Connectivity chip of Texas Instruments.
* FM Common module header file
*
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _FMDRV_COMMON_H
#define _FMDRV_COMMON_H
#define FM_ST_REG_TIMEOUT msecs_to_jiffies(6000) /* 6 sec */
#define FM_PKT_LOGICAL_CHAN_NUMBER 0x08 /* Logical channel 8 */
#define REG_RD 0x1
#define REG_WR 0x0
struct fm_reg_table {
u8 opcode;
u8 type;
u8 *name;
};
#define STEREO_GET 0
#define RSSI_LVL_GET 1
#define IF_COUNT_GET 2
#define FLAG_GET 3
#define RDS_SYNC_GET 4
#define RDS_DATA_GET 5
#define FREQ_SET 10
#define AF_FREQ_SET 11
#define MOST_MODE_SET 12
#define MOST_BLEND_SET 13
#define DEMPH_MODE_SET 14
#define SEARCH_LVL_SET 15
#define BAND_SET 16
#define MUTE_STATUS_SET 17
#define RDS_PAUSE_LVL_SET 18
#define RDS_PAUSE_DUR_SET 19
#define RDS_MEM_SET 20
#define RDS_BLK_B_SET 21
#define RDS_MSK_B_SET 22
#define RDS_PI_MASK_SET 23
#define RDS_PI_SET 24
#define RDS_SYSTEM_SET 25
#define INT_MASK_SET 26
#define SEARCH_DIR_SET 27
#define VOLUME_SET 28
#define AUDIO_ENABLE_SET 29
#define PCM_MODE_SET 30
#define I2S_MODE_CONFIG_SET 31
#define POWER_SET 32
#define INTX_CONFIG_SET 33
#define PULL_EN_SET 34
#define HILO_SET 35
#define SWITCH2FREF 36
#define FREQ_DRIFT_REPORT 37
#define PCE_GET 40
#define FIRM_VER_GET 41
#define ASIC_VER_GET 42
#define ASIC_ID_GET 43
#define MAN_ID_GET 44
#define TUNER_MODE_SET 45
#define STOP_SEARCH 46
#define RDS_CNTRL_SET 47
#define WRITE_HARDWARE_REG 100
#define CODE_DOWNLOAD 101
#define RESET 102
#define FM_POWER_MODE 254
#define FM_INTERRUPT 255
/* Transmitter API */
#define CHANL_SET 55
#define CHANL_BW_SET 56
#define REF_SET 57
#define POWER_ENB_SET 90
#define POWER_ATT_SET 58
#define POWER_LEV_SET 59
#define AUDIO_DEV_SET 60
#define PILOT_DEV_SET 61
#define RDS_DEV_SET 62
#define TX_BAND_SET 65
#define PUPD_SET 91
#define AUDIO_IO_SET 63
#define PREMPH_SET 64
#define MONO_SET 66
#define MUTE 92
#define MPX_LMT_ENABLE 67
#define PI_SET 93
#define ECC_SET 69
#define PTY 70
#define AF 71
#define DISPLAY_MODE 74
#define RDS_REP_SET 77
#define RDS_CONFIG_DATA_SET 98
#define RDS_DATA_SET 99
#define RDS_DATA_ENB 94
#define TA_SET 78
#define TP_SET 79
#define DI_SET 80
#define MS_SET 81
#define PS_SCROLL_SPEED 82
#define TX_AUDIO_LEVEL_TEST 96
#define TX_AUDIO_LEVEL_TEST_THRESHOLD 73
#define TX_AUDIO_INPUT_LEVEL_RANGE_SET 54
#define RX_ANTENNA_SELECT 87
#define I2C_DEV_ADDR_SET 86
#define REF_ERR_CALIB_PARAM_SET 88
#define REF_ERR_CALIB_PERIODICITY_SET 89
#define SOC_INT_TRIGGER 52
#define SOC_AUDIO_PATH_SET 83
#define SOC_PCMI_OVERRIDE 84
#define SOC_I2S_OVERRIDE 85
#define RSSI_BLOCK_SCAN_FREQ_SET 95
#define RSSI_BLOCK_SCAN_START 97
#define RSSI_BLOCK_SCAN_DATA_GET 5
#define READ_FMANT_TUNE_VALUE 104
/* SKB helpers */
struct fm_skb_cb {
__u8 fm_op;
struct completion *completion;
};
#define fm_cb(skb) ((struct fm_skb_cb *)(skb->cb))
/* FM Channel-8 command message format */
struct fm_cmd_msg_hdr {
__u8 hdr; /* Logical Channel-8 */
__u8 len; /* Number of bytes follows */
__u8 op; /* FM Opcode */
__u8 rd_wr; /* Read/Write command */
__u8 dlen; /* Length of payload */
} __attribute__ ((packed));
#define FM_CMD_MSG_HDR_SIZE 5 /* sizeof(struct fm_cmd_msg_hdr) */
/* FM Channel-8 event messgage format */
struct fm_event_msg_hdr {
__u8 header; /* Logical Channel-8 */
__u8 len; /* Number of bytes follows */
__u8 status; /* Event status */
__u8 num_fm_hci_cmds; /* Number of pkts the host allowed to send */
__u8 op; /* FM Opcode */
__u8 rd_wr; /* Read/Write command */
__u8 dlen; /* Length of payload */
} __attribute__ ((packed));
#define FM_EVT_MSG_HDR_SIZE 7 /* sizeof(struct fm_event_msg_hdr) */
/* TI's magic number in firmware file */
#define FM_FW_FILE_HEADER_MAGIC 0x42535442
#define FM_ENABLE 1
#define FM_DISABLE 0
/* FLAG_GET register bits */
#define FM_FR_EVENT BIT(0)
#define FM_BL_EVENT BIT(1)
#define FM_RDS_EVENT BIT(2)
#define FM_BBLK_EVENT BIT(3)
#define FM_LSYNC_EVENT BIT(4)
#define FM_LEV_EVENT BIT(5)
#define FM_IFFR_EVENT BIT(6)
#define FM_PI_EVENT BIT(7)
#define FM_PD_EVENT BIT(8)
#define FM_STIC_EVENT BIT(9)
#define FM_MAL_EVENT BIT(10)
#define FM_POW_ENB_EVENT BIT(11)
/*
* Firmware files of FM. ASIC ID and ASIC version will be appened to this,
* later.
*/
#define FM_FMC_FW_FILE_START ("fmc_ch8")
#define FM_RX_FW_FILE_START ("fm_rx_ch8")
#define FM_TX_FW_FILE_START ("fm_tx_ch8")
#define FM_UNDEFINED_FREQ 0xFFFFFFFF
/* Band types */
#define FM_BAND_EUROPE_US 0
#define FM_BAND_JAPAN 1
/* Seek directions */
#define FM_SEARCH_DIRECTION_DOWN 0
#define FM_SEARCH_DIRECTION_UP 1
/* Tunner modes */
#define FM_TUNER_STOP_SEARCH_MODE 0
#define FM_TUNER_PRESET_MODE 1
#define FM_TUNER_AUTONOMOUS_SEARCH_MODE 2
#define FM_TUNER_AF_JUMP_MODE 3
/* Min and Max volume */
#define FM_RX_VOLUME_MIN 0
#define FM_RX_VOLUME_MAX 70
/* Volume gain step */
#define FM_RX_VOLUME_GAIN_STEP 0x370
/* Mute modes */
#define FM_MUTE_ON 0
#define FM_MUTE_OFF 1
#define FM_MUTE_ATTENUATE 2
#define FM_RX_UNMUTE_MODE 0x00
#define FM_RX_RF_DEP_MODE 0x01
#define FM_RX_AC_MUTE_MODE 0x02
#define FM_RX_HARD_MUTE_LEFT_MODE 0x04
#define FM_RX_HARD_MUTE_RIGHT_MODE 0x08
#define FM_RX_SOFT_MUTE_FORCE_MODE 0x10
/* RF dependent mute mode */
#define FM_RX_RF_DEPENDENT_MUTE_ON 1
#define FM_RX_RF_DEPENDENT_MUTE_OFF 0
/* RSSI threshold min and max */
#define FM_RX_RSSI_THRESHOLD_MIN -128
#define FM_RX_RSSI_THRESHOLD_MAX 127
/* Stereo/Mono mode */
#define FM_STEREO_MODE 0
#define FM_MONO_MODE 1
#define FM_STEREO_SOFT_BLEND 1
/* FM RX De-emphasis filter modes */
#define FM_RX_EMPHASIS_FILTER_50_USEC 0
#define FM_RX_EMPHASIS_FILTER_75_USEC 1
/* FM RDS modes */
#define FM_RDS_DISABLE 0
#define FM_RDS_ENABLE 1
#define FM_NO_PI_CODE 0
/* FM and RX RDS block enable/disable */
#define FM_RX_PWR_SET_FM_ON_RDS_OFF 0x1
#define FM_RX_PWR_SET_FM_AND_RDS_BLK_ON 0x3
#define FM_RX_PWR_SET_FM_AND_RDS_BLK_OFF 0x0
/* RX RDS */
#define FM_RX_RDS_FLUSH_FIFO 0x1
#define FM_RX_RDS_FIFO_THRESHOLD 64 /* tuples */
#define FM_RDS_BLK_SIZE 3 /* 3 bytes */
/* RDS block types */
#define FM_RDS_BLOCK_A 0
#define FM_RDS_BLOCK_B 1
#define FM_RDS_BLOCK_C 2
#define FM_RDS_BLOCK_Ctag 3
#define FM_RDS_BLOCK_D 4
#define FM_RDS_BLOCK_E 5
#define FM_RDS_BLK_IDX_A 0
#define FM_RDS_BLK_IDX_B 1
#define FM_RDS_BLK_IDX_C 2
#define FM_RDS_BLK_IDX_D 3
#define FM_RDS_BLK_IDX_UNKNOWN 0xF0
#define FM_RDS_STATUS_ERR_MASK 0x18
/*
* Represents an RDS group type & version.
* There are 15 groups, each group has 2 versions: A and B.
*/
#define FM_RDS_GROUP_TYPE_MASK_0A BIT(0)
#define FM_RDS_GROUP_TYPE_MASK_0B BIT(1)
#define FM_RDS_GROUP_TYPE_MASK_1A BIT(2)
#define FM_RDS_GROUP_TYPE_MASK_1B BIT(3)
#define FM_RDS_GROUP_TYPE_MASK_2A BIT(4)
#define FM_RDS_GROUP_TYPE_MASK_2B BIT(5)
#define FM_RDS_GROUP_TYPE_MASK_3A BIT(6)
#define FM_RDS_GROUP_TYPE_MASK_3B BIT(7)
#define FM_RDS_GROUP_TYPE_MASK_4A BIT(8)
#define FM_RDS_GROUP_TYPE_MASK_4B BIT(9)
#define FM_RDS_GROUP_TYPE_MASK_5A BIT(10)
#define FM_RDS_GROUP_TYPE_MASK_5B BIT(11)
#define FM_RDS_GROUP_TYPE_MASK_6A BIT(12)
#define FM_RDS_GROUP_TYPE_MASK_6B BIT(13)
#define FM_RDS_GROUP_TYPE_MASK_7A BIT(14)
#define FM_RDS_GROUP_TYPE_MASK_7B BIT(15)
#define FM_RDS_GROUP_TYPE_MASK_8A BIT(16)
#define FM_RDS_GROUP_TYPE_MASK_8B BIT(17)
#define FM_RDS_GROUP_TYPE_MASK_9A BIT(18)
#define FM_RDS_GROUP_TYPE_MASK_9B BIT(19)
#define FM_RDS_GROUP_TYPE_MASK_10A BIT(20)
#define FM_RDS_GROUP_TYPE_MASK_10B BIT(21)
#define FM_RDS_GROUP_TYPE_MASK_11A BIT(22)
#define FM_RDS_GROUP_TYPE_MASK_11B BIT(23)
#define FM_RDS_GROUP_TYPE_MASK_12A BIT(24)
#define FM_RDS_GROUP_TYPE_MASK_12B BIT(25)
#define FM_RDS_GROUP_TYPE_MASK_13A BIT(26)
#define FM_RDS_GROUP_TYPE_MASK_13B BIT(27)
#define FM_RDS_GROUP_TYPE_MASK_14A BIT(28)
#define FM_RDS_GROUP_TYPE_MASK_14B BIT(29)
#define FM_RDS_GROUP_TYPE_MASK_15A BIT(30)
#define FM_RDS_GROUP_TYPE_MASK_15B BIT(31)
/* RX Alternate Frequency info */
#define FM_RDS_MIN_AF 1
#define FM_RDS_MAX_AF 204
#define FM_RDS_MAX_AF_JAPAN 140
#define FM_RDS_1_AF_FOLLOWS 225
#define FM_RDS_25_AF_FOLLOWS 249
/* RDS system type (RDS/RBDS) */
#define FM_RDS_SYSTEM_RDS 0
#define FM_RDS_SYSTEM_RBDS 1
/* AF on/off */
#define FM_RX_RDS_AF_SWITCH_MODE_ON 1
#define FM_RX_RDS_AF_SWITCH_MODE_OFF 0
/* Retry count when interrupt process goes wrong */
#define FM_IRQ_TIMEOUT_RETRY_MAX 5 /* 5 times */
/* Audio IO set values */
#define FM_RX_AUDIO_ENABLE_I2S 0x01
#define FM_RX_AUDIO_ENABLE_ANALOG 0x02
#define FM_RX_AUDIO_ENABLE_I2S_AND_ANALOG 0x03
#define FM_RX_AUDIO_ENABLE_DISABLE 0x00
/* HI/LO set values */
#define FM_RX_IFFREQ_TO_HI_SIDE 0x0
#define FM_RX_IFFREQ_TO_LO_SIDE 0x1
#define FM_RX_IFFREQ_HILO_AUTOMATIC 0x2
/*
* Default RX mode configuration. Chip will be configured
* with this default values after loading RX firmware.
*/
#define FM_DEFAULT_RX_VOLUME 10
#define FM_DEFAULT_RSSI_THRESHOLD 3
/* Range for TX power level in units for dB/uV */
#define FM_PWR_LVL_LOW 91
#define FM_PWR_LVL_HIGH 122
/* Chip specific default TX power level value */
#define FM_PWR_LVL_DEF 4
/* FM TX Pre-emphasis filter values */
#define FM_TX_PREEMPH_OFF 1
#define FM_TX_PREEMPH_50US 0
#define FM_TX_PREEMPH_75US 2
/* FM TX antenna impedance values */
#define FM_TX_ANT_IMP_50 0
#define FM_TX_ANT_IMP_200 1
#define FM_TX_ANT_IMP_500 2
/* Functions exported by FM common sub-module */
int fmc_prepare(struct fmdev *);
int fmc_release(struct fmdev *);
void fmc_update_region_info(struct fmdev *, u8);
int fmc_send_cmd(struct fmdev *, u8, u16,
void *, unsigned int, void *, int *);
int fmc_is_rds_data_available(struct fmdev *, struct file *,
struct poll_table_struct *);
int fmc_transfer_rds_from_internal_buff(struct fmdev *, struct file *,
u8 __user *, size_t);
int fmc_set_freq(struct fmdev *, u32);
int fmc_set_mode(struct fmdev *, u8);
int fmc_set_region(struct fmdev *, u8);
int fmc_set_mute_mode(struct fmdev *, u8);
int fmc_set_stereo_mono(struct fmdev *, u16);
int fmc_set_rds_mode(struct fmdev *, u8);
int fmc_get_freq(struct fmdev *, u32 *);
int fmc_get_region(struct fmdev *, u8 *);
int fmc_get_mode(struct fmdev *, u8 *);
/*
* channel spacing
*/
#define FM_CHANNEL_SPACING_50KHZ 1
#define FM_CHANNEL_SPACING_100KHZ 2
#define FM_CHANNEL_SPACING_200KHZ 4
#define FM_FREQ_MUL 50
#endif

820
drivers/media/radio/wl128x/fmdrv_rx.c
View File

@ -1,820 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* FM Driver for Connectivity chip of Texas Instruments.
* This sub-module of FM driver implements FM RX functionality.
*
* Copyright (C) 2011 Texas Instruments
* Author: Raja Mani <raja_mani@ti.com>
* Author: Manjunatha Halli <manjunatha_halli@ti.com>
*/
#include "fmdrv.h"
#include "fmdrv_common.h"
#include "fmdrv_rx.h"
void fm_rx_reset_rds_cache(struct fmdev *fmdev)
{
fmdev->rx.rds.flag = FM_RDS_DISABLE;
fmdev->rx.rds.last_blk_idx = 0;
fmdev->rx.rds.wr_idx = 0;
fmdev->rx.rds.rd_idx = 0;
if (fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
fmdev->irq_info.mask |= FM_LEV_EVENT;
}
void fm_rx_reset_station_info(struct fmdev *fmdev)
{
fmdev->rx.stat_info.picode = FM_NO_PI_CODE;
fmdev->rx.stat_info.afcache_size = 0;
fmdev->rx.stat_info.af_list_max = 0;
}
int fm_rx_set_freq(struct fmdev *fmdev, u32 freq)
{
unsigned long timeleft;
u16 payload, curr_frq, intr_flag;
u32 curr_frq_in_khz;
u32 resp_len;
int ret;
if (freq < fmdev->rx.region.bot_freq || freq > fmdev->rx.region.top_freq) {
fmerr("Invalid frequency %d\n", freq);
return -EINVAL;
}
/* Set audio enable */
payload = FM_RX_AUDIO_ENABLE_I2S_AND_ANALOG;
ret = fmc_send_cmd(fmdev, AUDIO_ENABLE_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Set hilo to automatic selection */
payload = FM_RX_IFFREQ_HILO_AUTOMATIC;
ret = fmc_send_cmd(fmdev, HILO_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Calculate frequency index and set*/
payload = (freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Read flags - just to clear any pending interrupts if we had */
ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
if (ret < 0)
return ret;
/* Enable FR, BL interrupts */
intr_flag = fmdev->irq_info.mask;
fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Start tune */
payload = FM_TUNER_PRESET_MODE;
ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
goto exit;
/* Wait for tune ended interrupt */
init_completion(&fmdev->maintask_comp);
timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
FM_DRV_TX_TIMEOUT);
if (!timeleft) {
fmerr("Timeout(%d sec),didn't get tune ended int\n",
jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
ret = -ETIMEDOUT;
goto exit;
}
/* Read freq back to confirm */
ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2, &curr_frq, &resp_len);
if (ret < 0)
goto exit;
curr_frq = be16_to_cpu((__force __be16)curr_frq);
curr_frq_in_khz = (fmdev->rx.region.bot_freq + ((u32)curr_frq * FM_FREQ_MUL));
if (curr_frq_in_khz != freq) {
pr_info("Frequency is set to (%d) but requested freq is (%d)\n",
curr_frq_in_khz, freq);
}
/* Update local cache */
fmdev->rx.freq = curr_frq_in_khz;
exit:
/* Re-enable default FM interrupts */
fmdev->irq_info.mask = intr_flag;
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Reset RDS cache and current station pointers */
fm_rx_reset_rds_cache(fmdev);
fm_rx_reset_station_info(fmdev);
return ret;
}
static int fm_rx_set_channel_spacing(struct fmdev *fmdev, u32 spacing)
{
u16 payload;
int ret;
if (spacing > 0 && spacing <= 50000)
spacing = FM_CHANNEL_SPACING_50KHZ;
else if (spacing > 50000 && spacing <= 100000)
spacing = FM_CHANNEL_SPACING_100KHZ;
else
spacing = FM_CHANNEL_SPACING_200KHZ;
/* set channel spacing */
payload = spacing;
ret = fmc_send_cmd(fmdev, CHANL_BW_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.region.chanl_space = spacing * FM_FREQ_MUL;
return ret;
}
int fm_rx_seek(struct fmdev *fmdev, u32 seek_upward,
u32 wrap_around, u32 spacing)
{
u32 resp_len;
u16 curr_frq, next_frq, last_frq;
u16 payload, int_reason, intr_flag;
u16 offset, space_idx;
unsigned long timeleft;
int ret;
/* Set channel spacing */
ret = fm_rx_set_channel_spacing(fmdev, spacing);
if (ret < 0) {
fmerr("Failed to set channel spacing\n");
return ret;
}
/* Read the current frequency from chip */
ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL,
sizeof(curr_frq), &curr_frq, &resp_len);
if (ret < 0)
return ret;
curr_frq = be16_to_cpu((__force __be16)curr_frq);
last_frq = (fmdev->rx.region.top_freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
/* Check the offset in order to be aligned to the channel spacing*/
space_idx = fmdev->rx.region.chanl_space / FM_FREQ_MUL;
offset = curr_frq % space_idx;
next_frq = seek_upward ? curr_frq + space_idx /* Seek Up */ :
curr_frq - space_idx /* Seek Down */ ;
/*
* Add or subtract offset in order to stay aligned to the channel
* spacing.
*/
if ((short)next_frq < 0)
next_frq = last_frq - offset;
else if (next_frq > last_frq)
next_frq = 0 + offset;
again:
/* Set calculated next frequency to perform seek */
payload = next_frq;
ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Set search direction (0:Seek Down, 1:Seek Up) */
payload = (seek_upward ? FM_SEARCH_DIRECTION_UP : FM_SEARCH_DIRECTION_DOWN);
ret = fmc_send_cmd(fmdev, SEARCH_DIR_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Read flags - just to clear any pending interrupts if we had */
ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
if (ret < 0)
return ret;
/* Enable FR, BL interrupts */
intr_flag = fmdev->irq_info.mask;
fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Start seek */
payload = FM_TUNER_AUTONOMOUS_SEARCH_MODE;
ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Wait for tune ended/band limit reached interrupt */
init_completion(&fmdev->maintask_comp);
timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
FM_DRV_RX_SEEK_TIMEOUT);
if (!timeleft) {
fmerr("Timeout(%d sec),didn't get tune ended int\n",
jiffies_to_msecs(FM_DRV_RX_SEEK_TIMEOUT) / 1000);
return -ENODATA;
}
int_reason = fmdev->irq_info.flag & (FM_TUNE_COMPLETE | FM_BAND_LIMIT);
/* Re-enable default FM interrupts */
fmdev->irq_info.mask = intr_flag;
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
if (int_reason & FM_BL_EVENT) {
if (wrap_around == 0) {
fmdev->rx.freq = seek_upward ?
fmdev->rx.region.top_freq :
fmdev->rx.region.bot_freq;
} else {
fmdev->rx.freq = seek_upward ?
fmdev->rx.region.bot_freq :
fmdev->rx.region.top_freq;
/* Calculate frequency index to write */
next_frq = (fmdev->rx.freq -
fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
goto again;
}
} else {
/* Read freq to know where operation tune operation stopped */
ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2,
&curr_frq, &resp_len);
if (ret < 0)
return ret;
curr_frq = be16_to_cpu((__force __be16)curr_frq);
fmdev->rx.freq = (fmdev->rx.region.bot_freq +
((u32)curr_frq * FM_FREQ_MUL));
}
/* Reset RDS cache and current station pointers */
fm_rx_reset_rds_cache(fmdev);
fm_rx_reset_station_info(fmdev);
return ret;
}
int fm_rx_set_volume(struct fmdev *fmdev, u16 vol_to_set)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (vol_to_set > FM_RX_VOLUME_MAX) {
fmerr("Volume is not within(%d-%d) range\n",
FM_RX_VOLUME_MIN, FM_RX_VOLUME_MAX);
return -EINVAL;
}
vol_to_set *= FM_RX_VOLUME_GAIN_STEP;
payload = vol_to_set;
ret = fmc_send_cmd(fmdev, VOLUME_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.volume = vol_to_set;
return ret;
}
/* Get volume */
int fm_rx_get_volume(struct fmdev *fmdev, u16 *curr_vol)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_vol == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_vol = fmdev->rx.volume / FM_RX_VOLUME_GAIN_STEP;
return 0;
}
/* To get current band's bottom and top frequency */
int fm_rx_get_band_freq_range(struct fmdev *fmdev, u32 *bot_freq, u32 *top_freq)
{
if (bot_freq != NULL)
*bot_freq = fmdev->rx.region.bot_freq;
if (top_freq != NULL)
*top_freq = fmdev->rx.region.top_freq;
return 0;
}
/* Returns current band index (0-Europe/US; 1-Japan) */
void fm_rx_get_region(struct fmdev *fmdev, u8 *region)
{
*region = fmdev->rx.region.fm_band;
}
/* Sets band (0-Europe/US; 1-Japan) */
int fm_rx_set_region(struct fmdev *fmdev, u8 region_to_set)
{
u16 payload;
u32 new_frq = 0;
int ret;
if (region_to_set != FM_BAND_EUROPE_US &&
region_to_set != FM_BAND_JAPAN) {
fmerr("Invalid band\n");
return -EINVAL;
}
if (fmdev->rx.region.fm_band == region_to_set) {
fmerr("Requested band is already configured\n");
return 0;
}
/* Send cmd to set the band */
payload = (u16)region_to_set;
ret = fmc_send_cmd(fmdev, BAND_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmc_update_region_info(fmdev, region_to_set);
/* Check whether current RX frequency is within band boundary */
if (fmdev->rx.freq < fmdev->rx.region.bot_freq)
new_frq = fmdev->rx.region.bot_freq;
else if (fmdev->rx.freq > fmdev->rx.region.top_freq)
new_frq = fmdev->rx.region.top_freq;
if (new_frq) {
fmdbg("Current freq is not within band limit boundary,switching to %d KHz\n",
new_frq);
/* Current RX frequency is not in range. So, update it */
ret = fm_rx_set_freq(fmdev, new_frq);
}
return ret;
}
/* Reads current mute mode (Mute Off/On/Attenuate)*/
int fm_rx_get_mute_mode(struct fmdev *fmdev, u8 *curr_mute_mode)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_mute_mode == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_mute_mode = fmdev->rx.mute_mode;
return 0;
}
static int fm_config_rx_mute_reg(struct fmdev *fmdev)
{
u16 payload, muteval;
int ret;
muteval = 0;
switch (fmdev->rx.mute_mode) {
case FM_MUTE_ON:
muteval = FM_RX_AC_MUTE_MODE;
break;
case FM_MUTE_OFF:
muteval = FM_RX_UNMUTE_MODE;
break;
case FM_MUTE_ATTENUATE:
muteval = FM_RX_SOFT_MUTE_FORCE_MODE;
break;
}
if (fmdev->rx.rf_depend_mute == FM_RX_RF_DEPENDENT_MUTE_ON)
muteval |= FM_RX_RF_DEP_MODE;
else
muteval &= ~FM_RX_RF_DEP_MODE;
payload = muteval;
ret = fmc_send_cmd(fmdev, MUTE_STATUS_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
/* Configures mute mode (Mute Off/On/Attenuate) */
int fm_rx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
{
u8 org_state;
int ret;
if (fmdev->rx.mute_mode == mute_mode_toset)
return 0;
org_state = fmdev->rx.mute_mode;
fmdev->rx.mute_mode = mute_mode_toset;
ret = fm_config_rx_mute_reg(fmdev);
if (ret < 0) {
fmdev->rx.mute_mode = org_state;
return ret;
}
return 0;
}
/* Gets RF dependent soft mute mode enable/disable status */
int fm_rx_get_rfdepend_softmute(struct fmdev *fmdev, u8 *curr_mute_mode)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_mute_mode == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_mute_mode = fmdev->rx.rf_depend_mute;
return 0;
}
/* Sets RF dependent soft mute mode */
int fm_rx_set_rfdepend_softmute(struct fmdev *fmdev, u8 rfdepend_mute)
{
u8 org_state;
int ret;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_ON &&
rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_OFF) {
fmerr("Invalid RF dependent soft mute\n");
return -EINVAL;
}
if (fmdev->rx.rf_depend_mute == rfdepend_mute)
return 0;
org_state = fmdev->rx.rf_depend_mute;
fmdev->rx.rf_depend_mute = rfdepend_mute;
ret = fm_config_rx_mute_reg(fmdev);
if (ret < 0) {
fmdev->rx.rf_depend_mute = org_state;
return ret;
}
return 0;
}
/* Returns the signal strength level of current channel */
int fm_rx_get_rssi_level(struct fmdev *fmdev, u16 *rssilvl)
{
__be16 curr_rssi_lel;
u32 resp_len;
int ret;
if (rssilvl == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
/* Read current RSSI level */
ret = fmc_send_cmd(fmdev, RSSI_LVL_GET, REG_RD, NULL, 2,
&curr_rssi_lel, &resp_len);
if (ret < 0)
return ret;
*rssilvl = be16_to_cpu(curr_rssi_lel);
return 0;
}
/*
* Sets the signal strength level that once reached
* will stop the auto search process
*/
int fm_rx_set_rssi_threshold(struct fmdev *fmdev, short rssi_lvl_toset)
{
u16 payload;
int ret;
if (rssi_lvl_toset < FM_RX_RSSI_THRESHOLD_MIN ||
rssi_lvl_toset > FM_RX_RSSI_THRESHOLD_MAX) {
fmerr("Invalid RSSI threshold level\n");
return -EINVAL;
}
payload = (u16)rssi_lvl_toset;
ret = fmc_send_cmd(fmdev, SEARCH_LVL_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.rssi_threshold = rssi_lvl_toset;
return 0;
}
/* Returns current RX RSSI threshold value */
int fm_rx_get_rssi_threshold(struct fmdev *fmdev, short *curr_rssi_lvl)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_rssi_lvl == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_rssi_lvl = fmdev->rx.rssi_threshold;
return 0;
}
/* Sets RX stereo/mono modes */
int fm_rx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
{
u16 payload;
int ret;
if (mode != FM_STEREO_MODE && mode != FM_MONO_MODE) {
fmerr("Invalid mode\n");
return -EINVAL;
}
/* Set stereo/mono mode */
payload = (u16)mode;
ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Set stereo blending mode */
payload = FM_STEREO_SOFT_BLEND;
ret = fmc_send_cmd(fmdev, MOST_BLEND_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
/* Gets current RX stereo/mono mode */
int fm_rx_get_stereo_mono(struct fmdev *fmdev, u16 *mode)
{
__be16 curr_mode;
u32 resp_len;
int ret;
if (mode == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_RD, NULL, 2,
&curr_mode, &resp_len);
if (ret < 0)
return ret;
*mode = be16_to_cpu(curr_mode);
return 0;
}
/* Choose RX de-emphasis filter mode (50us/75us) */
int fm_rx_set_deemphasis_mode(struct fmdev *fmdev, u16 mode)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (mode != FM_RX_EMPHASIS_FILTER_50_USEC &&
mode != FM_RX_EMPHASIS_FILTER_75_USEC) {
fmerr("Invalid rx de-emphasis mode (%d)\n", mode);
return -EINVAL;
}
payload = mode;
ret = fmc_send_cmd(fmdev, DEMPH_MODE_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.deemphasis_mode = mode;
return 0;
}
/* Gets current RX de-emphasis filter mode */
int fm_rx_get_deemph_mode(struct fmdev *fmdev, u16 *curr_deemphasis_mode)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_deemphasis_mode == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_deemphasis_mode = fmdev->rx.deemphasis_mode;
return 0;
}
/* Enable/Disable RX RDS */
int fm_rx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
{
u16 payload;
int ret;
if (rds_en_dis != FM_RDS_ENABLE && rds_en_dis != FM_RDS_DISABLE) {
fmerr("Invalid rds option\n");
return -EINVAL;
}
if (rds_en_dis == FM_RDS_ENABLE
&& fmdev->rx.rds.flag == FM_RDS_DISABLE) {
/* Turn on RX RDS and RDS circuit */
payload = FM_RX_PWR_SET_FM_AND_RDS_BLK_ON;
ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Clear and reset RDS FIFO */
payload = FM_RX_RDS_FLUSH_FIFO;
ret = fmc_send_cmd(fmdev, RDS_CNTRL_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Read flags - just to clear any pending interrupts. */
ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2,
NULL, NULL);
if (ret < 0)
return ret;
/* Set RDS FIFO threshold value */
payload = FM_RX_RDS_FIFO_THRESHOLD;
ret = fmc_send_cmd(fmdev, RDS_MEM_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Enable RDS interrupt */
fmdev->irq_info.mask |= FM_RDS_EVENT;
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0) {
fmdev->irq_info.mask &= ~FM_RDS_EVENT;
return ret;
}
/* Update our local flag */
fmdev->rx.rds.flag = FM_RDS_ENABLE;
} else if (rds_en_dis == FM_RDS_DISABLE
&& fmdev->rx.rds.flag == FM_RDS_ENABLE) {
/* Turn off RX RDS */
payload = FM_RX_PWR_SET_FM_ON_RDS_OFF;
ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Reset RDS pointers */
fmdev->rx.rds.last_blk_idx = 0;
fmdev->rx.rds.wr_idx = 0;
fmdev->rx.rds.rd_idx = 0;
fm_rx_reset_station_info(fmdev);
/* Update RDS local cache */
fmdev->irq_info.mask &= ~(FM_RDS_EVENT);
fmdev->rx.rds.flag = FM_RDS_DISABLE;
}
return 0;
}
/* Returns current RX RDS enable/disable status */
int fm_rx_get_rds_mode(struct fmdev *fmdev, u8 *curr_rds_en_dis)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (curr_rds_en_dis == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*curr_rds_en_dis = fmdev->rx.rds.flag;
return 0;
}
/* Sets RDS operation mode (RDS/RDBS) */
int fm_rx_set_rds_system(struct fmdev *fmdev, u8 rds_mode)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (rds_mode != FM_RDS_SYSTEM_RDS && rds_mode != FM_RDS_SYSTEM_RBDS) {
fmerr("Invalid rds mode\n");
return -EINVAL;
}
/* Set RDS operation mode */
payload = (u16)rds_mode;
ret = fmc_send_cmd(fmdev, RDS_SYSTEM_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.rds_mode = rds_mode;
return 0;
}
/* Configures Alternate Frequency switch mode */
int fm_rx_set_af_switch(struct fmdev *fmdev, u8 af_mode)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (af_mode != FM_RX_RDS_AF_SWITCH_MODE_ON &&
af_mode != FM_RX_RDS_AF_SWITCH_MODE_OFF) {
fmerr("Invalid af mode\n");
return -EINVAL;
}
/* Enable/disable low RSSI interrupt based on af_mode */
if (af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
fmdev->irq_info.mask |= FM_LEV_EVENT;
else
fmdev->irq_info.mask &= ~FM_LEV_EVENT;
payload = fmdev->irq_info.mask;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->rx.af_mode = af_mode;
return 0;
}
/* Returns Alternate Frequency switch status */
int fm_rx_get_af_switch(struct fmdev *fmdev, u8 *af_mode)
{
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
if (af_mode == NULL) {
fmerr("Invalid memory\n");
return -ENOMEM;
}
*af_mode = fmdev->rx.af_mode;
return 0;
}

45
drivers/media/radio/wl128x/fmdrv_rx.h
View File

@ -1,45 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* FM Driver for Connectivity chip of Texas Instruments.
* FM RX module header.
*
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _FMDRV_RX_H
#define _FMDRV_RX_H
int fm_rx_set_freq(struct fmdev *, u32);
int fm_rx_set_mute_mode(struct fmdev *, u8);
int fm_rx_set_stereo_mono(struct fmdev *, u16);
int fm_rx_set_rds_mode(struct fmdev *, u8);
int fm_rx_set_rds_system(struct fmdev *, u8);
int fm_rx_set_volume(struct fmdev *, u16);
int fm_rx_set_rssi_threshold(struct fmdev *, short);
int fm_rx_set_region(struct fmdev *, u8);
int fm_rx_set_rfdepend_softmute(struct fmdev *, u8);
int fm_rx_set_deemphasis_mode(struct fmdev *, u16);
int fm_rx_set_af_switch(struct fmdev *, u8);
void fm_rx_reset_rds_cache(struct fmdev *);
void fm_rx_reset_station_info(struct fmdev *);
int fm_rx_seek(struct fmdev *, u32, u32, u32);
int fm_rx_get_rds_mode(struct fmdev *, u8 *);
int fm_rx_get_mute_mode(struct fmdev *, u8 *);
int fm_rx_get_volume(struct fmdev *, u16 *);
int fm_rx_get_band_freq_range(struct fmdev *,
u32 *, u32 *);
int fm_rx_get_stereo_mono(struct fmdev *, u16 *);
int fm_rx_get_rssi_level(struct fmdev *, u16 *);
int fm_rx_get_rssi_threshold(struct fmdev *, short *);
int fm_rx_get_rfdepend_softmute(struct fmdev *, u8 *);
int fm_rx_get_deemph_mode(struct fmdev *, u16 *);
int fm_rx_get_af_switch(struct fmdev *, u8 *);
void fm_rx_get_region(struct fmdev *, u8 *);
int fm_rx_set_chanl_spacing(struct fmdev *, u8);
int fm_rx_get_chanl_spacing(struct fmdev *, u8 *);
#endif

413
drivers/media/radio/wl128x/fmdrv_tx.c
View File

@ -1,413 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* FM Driver for Connectivity chip of Texas Instruments.
* This sub-module of FM driver implements FM TX functionality.
*
* Copyright (C) 2011 Texas Instruments
*/
#include <linux/delay.h>
#include "fmdrv.h"
#include "fmdrv_common.h"
#include "fmdrv_tx.h"
int fm_tx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
{
u16 payload;
int ret;
if (fmdev->tx_data.aud_mode == mode)
return 0;
fmdbg("stereo mode: %d\n", mode);
/* Set Stereo/Mono mode */
payload = (1 - mode);
ret = fmc_send_cmd(fmdev, MONO_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fmdev->tx_data.aud_mode = mode;
return ret;
}
static int set_rds_text(struct fmdev *fmdev, u8 *rds_text)
{
u16 payload;
int ret;
ret = fmc_send_cmd(fmdev, RDS_DATA_SET, REG_WR, rds_text,
strlen(rds_text), NULL, NULL);
if (ret < 0)
return ret;
/* Scroll mode */
payload = (u16)0x1;
ret = fmc_send_cmd(fmdev, DISPLAY_MODE, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
static int set_rds_data_mode(struct fmdev *fmdev, u8 mode)
{
u16 payload;
int ret;
/* Setting unique PI TODO: how unique? */
payload = (u16)0xcafe;
ret = fmc_send_cmd(fmdev, PI_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Set decoder id */
payload = (u16)0xa;
ret = fmc_send_cmd(fmdev, DI_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* TODO: RDS_MODE_GET? */
return 0;
}
static int set_rds_len(struct fmdev *fmdev, u8 type, u16 len)
{
u16 payload;
int ret;
len |= type << 8;
payload = len;
ret = fmc_send_cmd(fmdev, RDS_CONFIG_DATA_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* TODO: LENGTH_GET? */
return 0;
}
int fm_tx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
{
u16 payload;
int ret;
u8 rds_text[] = "Zoom2\n";
fmdbg("rds_en_dis:%d(E:%d, D:%d)\n", rds_en_dis,
FM_RDS_ENABLE, FM_RDS_DISABLE);
if (rds_en_dis == FM_RDS_ENABLE) {
/* Set RDS length */
set_rds_len(fmdev, 0, strlen(rds_text));
/* Set RDS text */
set_rds_text(fmdev, rds_text);
/* Set RDS mode */
set_rds_data_mode(fmdev, 0x0);
}
/* Send command to enable RDS */
if (rds_en_dis == FM_RDS_ENABLE)
payload = 0x01;
else
payload = 0x00;
ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
if (rds_en_dis == FM_RDS_ENABLE) {
/* Set RDS length */
set_rds_len(fmdev, 0, strlen(rds_text));
/* Set RDS text */
set_rds_text(fmdev, rds_text);
}
fmdev->tx_data.rds.flag = rds_en_dis;
return 0;
}
int fm_tx_set_radio_text(struct fmdev *fmdev, u8 *rds_text, u8 rds_type)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
fm_tx_set_rds_mode(fmdev, 0);
/* Set RDS length */
set_rds_len(fmdev, rds_type, strlen(rds_text));
/* Set RDS text */
set_rds_text(fmdev, rds_text);
/* Set RDS mode */
set_rds_data_mode(fmdev, 0x0);
payload = 1;
ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
int fm_tx_set_af(struct fmdev *fmdev, u32 af)
{
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
fmdbg("AF: %d\n", af);
af = (af - 87500) / 100;
payload = (u16)af;
ret = fmc_send_cmd(fmdev, TA_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
int fm_tx_set_region(struct fmdev *fmdev, u8 region)
{
u16 payload;
int ret;
if (region != FM_BAND_EUROPE_US && region != FM_BAND_JAPAN) {
fmerr("Invalid band\n");
return -EINVAL;
}
/* Send command to set the band */
payload = (u16)region;
ret = fmc_send_cmd(fmdev, TX_BAND_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
int fm_tx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
{
u16 payload;
int ret;
fmdbg("tx: mute mode %d\n", mute_mode_toset);
payload = mute_mode_toset;
ret = fmc_send_cmd(fmdev, MUTE, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
return 0;
}
/* Set TX Audio I/O */
static int set_audio_io(struct fmdev *fmdev)
{
struct fmtx_data *tx = &fmdev->tx_data;
u16 payload;
int ret;
/* Set Audio I/O Enable */
payload = tx->audio_io;
ret = fmc_send_cmd(fmdev, AUDIO_IO_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* TODO: is audio set? */
return 0;
}
/* Start TX Transmission */
static int enable_xmit(struct fmdev *fmdev, u8 new_xmit_state)
{
struct fmtx_data *tx = &fmdev->tx_data;
unsigned long timeleft;
u16 payload;
int ret;
/* Enable POWER_ENB interrupts */
payload = FM_POW_ENB_EVENT;
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Set Power Enable */
payload = new_xmit_state;
ret = fmc_send_cmd(fmdev, POWER_ENB_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* Wait for Power Enabled */
init_completion(&fmdev->maintask_comp);
timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
FM_DRV_TX_TIMEOUT);
if (!timeleft) {
fmerr("Timeout(%d sec),didn't get tune ended interrupt\n",
jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
return -ETIMEDOUT;
}
set_bit(FM_CORE_TX_XMITING, &fmdev->flag);
tx->xmit_state = new_xmit_state;
return 0;
}
/* Set TX power level */
int fm_tx_set_pwr_lvl(struct fmdev *fmdev, u8 new_pwr_lvl)
{
u16 payload;
struct fmtx_data *tx = &fmdev->tx_data;
int ret;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
fmdbg("tx: pwr_level_to_set %ld\n", (long int)new_pwr_lvl);
/* If the core isn't ready update global variable */
if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
tx->pwr_lvl = new_pwr_lvl;
return 0;
}
/* Set power level: Application will specify power level value in
* units of dB/uV, whereas range and step are specific to FM chip.
* For TI's WL chips, convert application specified power level value
* to chip specific value by subtracting 122 from it. Refer to TI FM
* data sheet for details.
* */
payload = (FM_PWR_LVL_HIGH - new_pwr_lvl);
ret = fmc_send_cmd(fmdev, POWER_LEV_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
/* TODO: is the power level set? */
tx->pwr_lvl = new_pwr_lvl;
return 0;
}
/*
* Sets FM TX pre-emphasis filter value (OFF, 50us, or 75us)
* Convert V4L2 specified filter values to chip specific filter values.
*/
int fm_tx_set_preemph_filter(struct fmdev *fmdev, u32 preemphasis)
{
struct fmtx_data *tx = &fmdev->tx_data;
u16 payload;
int ret;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
switch (preemphasis) {
case V4L2_PREEMPHASIS_DISABLED:
payload = FM_TX_PREEMPH_OFF;
break;
case V4L2_PREEMPHASIS_50_uS:
payload = FM_TX_PREEMPH_50US;
break;
case V4L2_PREEMPHASIS_75_uS:
payload = FM_TX_PREEMPH_75US;
break;
}
ret = fmc_send_cmd(fmdev, PREMPH_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
tx->preemph = payload;
return ret;
}
/* Get the TX tuning capacitor value.*/
int fm_tx_get_tune_cap_val(struct fmdev *fmdev)
{
u16 curr_val;
u32 resp_len;
int ret;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
ret = fmc_send_cmd(fmdev, READ_FMANT_TUNE_VALUE, REG_RD,
NULL, sizeof(curr_val), &curr_val, &resp_len);
if (ret < 0)
return ret;
curr_val = be16_to_cpu((__force __be16)curr_val);
return curr_val;
}
/* Set TX Frequency */
int fm_tx_set_freq(struct fmdev *fmdev, u32 freq_to_set)
{
struct fmtx_data *tx = &fmdev->tx_data;
u16 payload, chanl_index;
int ret;
if (test_bit(FM_CORE_TX_XMITING, &fmdev->flag)) {
enable_xmit(fmdev, 0);
clear_bit(FM_CORE_TX_XMITING, &fmdev->flag);
}
/* Enable FR, BL interrupts */
payload = (FM_FR_EVENT | FM_BL_EVENT);
ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
tx->tx_frq = (unsigned long)freq_to_set;
fmdbg("tx: freq_to_set %ld\n", (long int)tx->tx_frq);
chanl_index = freq_to_set / 10;
/* Set current tuner channel */
payload = chanl_index;
ret = fmc_send_cmd(fmdev, CHANL_SET, REG_WR, &payload,
sizeof(payload), NULL, NULL);
if (ret < 0)
return ret;
fm_tx_set_pwr_lvl(fmdev, tx->pwr_lvl);
fm_tx_set_preemph_filter(fmdev, tx->preemph);
tx->audio_io = 0x01; /* I2S */
set_audio_io(fmdev);
enable_xmit(fmdev, 0x01); /* Enable transmission */
tx->aud_mode = FM_STEREO_MODE;
tx->rds.flag = FM_RDS_DISABLE;
return 0;
}

24
drivers/media/radio/wl128x/fmdrv_tx.h
View File

@ -1,24 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* FM Driver for Connectivity chip of Texas Instruments.
* FM TX module header.
*
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _FMDRV_TX_H
#define _FMDRV_TX_H
int fm_tx_set_freq(struct fmdev *, u32);
int fm_tx_set_pwr_lvl(struct fmdev *, u8);
int fm_tx_set_region(struct fmdev *, u8);
int fm_tx_set_mute_mode(struct fmdev *, u8);
int fm_tx_set_stereo_mono(struct fmdev *, u16);
int fm_tx_set_rds_mode(struct fmdev *, u8);
int fm_tx_set_radio_text(struct fmdev *, u8 *, u8);
int fm_tx_set_af(struct fmdev *, u32);
int fm_tx_set_preemph_filter(struct fmdev *, u32);
int fm_tx_get_tune_cap_val(struct fmdev *);
#endif

604
drivers/media/radio/wl128x/fmdrv_v4l2.c
View File

@ -1,604 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* FM Driver for Connectivity chip of Texas Instruments.
* This file provides interfaces to V4L2 subsystem.
*
* This module registers with V4L2 subsystem as Radio
* data system interface (/dev/radio). During the registration,
* it will expose two set of function pointers.
*
* 1) File operation related API (open, close, read, write, poll...etc).
* 2) Set of V4L2 IOCTL complaint API.
*
* Copyright (C) 2011 Texas Instruments
* Author: Raja Mani <raja_mani@ti.com>
* Author: Manjunatha Halli <manjunatha_halli@ti.com>
*/
#include <linux/export.h>
#include "fmdrv.h"
#include "fmdrv_v4l2.h"
#include "fmdrv_common.h"
#include "fmdrv_rx.h"
#include "fmdrv_tx.h"
static struct video_device gradio_dev;
static u8 radio_disconnected;
/* -- V4L2 RADIO (/dev/radioX) device file operation interfaces --- */
/* Read RX RDS data */
static ssize_t fm_v4l2_fops_read(struct file *file, char __user * buf,
size_t count, loff_t *ppos)
{
u8 rds_mode;
int ret;
struct fmdev *fmdev;
fmdev = video_drvdata(file);
if (!radio_disconnected) {
fmerr("FM device is already disconnected\n");
return -EIO;
}
if (mutex_lock_interruptible(&fmdev->mutex))
return -ERESTARTSYS;
/* Turn on RDS mode if it is disabled */
ret = fm_rx_get_rds_mode(fmdev, &rds_mode);
if (ret < 0) {
fmerr("Unable to read current rds mode\n");
goto read_unlock;
}
if (rds_mode == FM_RDS_DISABLE) {
ret = fmc_set_rds_mode(fmdev, FM_RDS_ENABLE);
if (ret < 0) {
fmerr("Failed to enable rds mode\n");
goto read_unlock;
}
}
/* Copy RDS data from internal buffer to user buffer */
ret = fmc_transfer_rds_from_internal_buff(fmdev, file, buf, count);
read_unlock:
mutex_unlock(&fmdev->mutex);
return ret;
}
/* Write TX RDS data */
static ssize_t fm_v4l2_fops_write(struct file *file, const char __user * buf,
size_t count, loff_t *ppos)
{
struct tx_rds rds;
int ret;
struct fmdev *fmdev;
ret = copy_from_user(&rds, buf, sizeof(rds));
rds.text[sizeof(rds.text) - 1] = '\0';
fmdbg("(%d)type: %d, text %s, af %d\n",
ret, rds.text_type, rds.text, rds.af_freq);
if (ret)
return -EFAULT;
fmdev = video_drvdata(file);
if (mutex_lock_interruptible(&fmdev->mutex))
return -ERESTARTSYS;
fm_tx_set_radio_text(fmdev, rds.text, rds.text_type);
fm_tx_set_af(fmdev, rds.af_freq);
mutex_unlock(&fmdev->mutex);
return sizeof(rds);
}
static __poll_t fm_v4l2_fops_poll(struct file *file, struct poll_table_struct *pts)
{
int ret;
struct fmdev *fmdev;
fmdev = video_drvdata(file);
mutex_lock(&fmdev->mutex);
ret = fmc_is_rds_data_available(fmdev, file, pts);
mutex_unlock(&fmdev->mutex);
if (ret < 0)
return EPOLLIN | EPOLLRDNORM;
return 0;
}
/*
* Handle open request for "/dev/radioX" device.
* Start with FM RX mode as default.
*/
static int fm_v4l2_fops_open(struct file *file)
{
int ret;
struct fmdev *fmdev = NULL;
/* Don't allow multiple open */
if (radio_disconnected) {
fmerr("FM device is already opened\n");
return -EBUSY;
}
fmdev = video_drvdata(file);
if (mutex_lock_interruptible(&fmdev->mutex))
return -ERESTARTSYS;
ret = fmc_prepare(fmdev);
if (ret < 0) {
fmerr("Unable to prepare FM CORE\n");
goto open_unlock;
}
fmdbg("Load FM RX firmware..\n");
ret = fmc_set_mode(fmdev, FM_MODE_RX);
if (ret < 0) {
fmerr("Unable to load FM RX firmware\n");
goto open_unlock;
}
radio_disconnected = 1;
open_unlock:
mutex_unlock(&fmdev->mutex);
return ret;
}
static int fm_v4l2_fops_release(struct file *file)
{
int ret;
struct fmdev *fmdev;
fmdev = video_drvdata(file);
if (!radio_disconnected) {
fmdbg("FM device is already closed\n");
return 0;
}
mutex_lock(&fmdev->mutex);
ret = fmc_set_mode(fmdev, FM_MODE_OFF);
if (ret < 0) {
fmerr("Unable to turn off the chip\n");
goto release_unlock;
}
ret = fmc_release(fmdev);
if (ret < 0) {
fmerr("FM CORE release failed\n");
goto release_unlock;
}
radio_disconnected = 0;
release_unlock:
mutex_unlock(&fmdev->mutex);
return ret;
}
/* V4L2 RADIO (/dev/radioX) device IOCTL interfaces */
static int fm_v4l2_vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *capability)
{
strscpy(capability->driver, FM_DRV_NAME, sizeof(capability->driver));
strscpy(capability->card, FM_DRV_CARD_SHORT_NAME,
sizeof(capability->card));
sprintf(capability->bus_info, "UART");
return 0;
}
static int fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct fmdev *fmdev = container_of(ctrl->handler,
struct fmdev, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
ctrl->val = fm_tx_get_tune_cap_val(fmdev);
break;
default:
fmwarn("%s: Unknown IOCTL: %d\n", __func__, ctrl->id);
break;
}
return 0;
}
static int fm_v4l2_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct fmdev *fmdev = container_of(ctrl->handler,
struct fmdev, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_AUDIO_VOLUME: /* set volume */
return fm_rx_set_volume(fmdev, (u16)ctrl->val);
case V4L2_CID_AUDIO_MUTE: /* set mute */
return fmc_set_mute_mode(fmdev, (u8)ctrl->val);
case V4L2_CID_TUNE_POWER_LEVEL:
/* set TX power level - ext control */
return fm_tx_set_pwr_lvl(fmdev, (u8)ctrl->val);
case V4L2_CID_TUNE_PREEMPHASIS:
return fm_tx_set_preemph_filter(fmdev, (u8) ctrl->val);
default:
return -EINVAL;
}
}
static int fm_v4l2_vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *audio)
{
memset(audio, 0, sizeof(*audio));
strscpy(audio->name, "Radio", sizeof(audio->name));
audio->capability = V4L2_AUDCAP_STEREO;
return 0;
}
static int fm_v4l2_vidioc_s_audio(struct file *file, void *priv,
const struct v4l2_audio *audio)
{
if (audio->index != 0)
return -EINVAL;
return 0;
}
/* Get tuner attributes. If current mode is NOT RX, return error */
static int fm_v4l2_vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *tuner)
{
struct fmdev *fmdev = video_drvdata(file);
u32 bottom_freq;
u32 top_freq;
u16 stereo_mono_mode;
u16 rssilvl;
int ret;
if (tuner->index != 0)
return -EINVAL;
if (fmdev->curr_fmmode != FM_MODE_RX)
return -EPERM;
ret = fm_rx_get_band_freq_range(fmdev, &bottom_freq, &top_freq);
if (ret != 0)
return ret;
ret = fm_rx_get_stereo_mono(fmdev, &stereo_mono_mode);
if (ret != 0)
return ret;
ret = fm_rx_get_rssi_level(fmdev, &rssilvl);
if (ret != 0)
return ret;
strscpy(tuner->name, "FM", sizeof(tuner->name));
tuner->type = V4L2_TUNER_RADIO;
/* Store rangelow and rangehigh freq in unit of 62.5 Hz */
tuner->rangelow = bottom_freq * 16;
tuner->rangehigh = top_freq * 16;
tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO |
((fmdev->rx.rds.flag == FM_RDS_ENABLE) ? V4L2_TUNER_SUB_RDS : 0);
tuner->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS |
V4L2_TUNER_CAP_LOW |
V4L2_TUNER_CAP_HWSEEK_BOUNDED |
V4L2_TUNER_CAP_HWSEEK_WRAP;
tuner->audmode = (stereo_mono_mode ?
V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO);
/*
* Actual rssi value lies in between -128 to +127.
* Convert this range from 0 to 255 by adding +128
*/
rssilvl += 128;
/*
* Return signal strength value should be within 0 to 65535.
* Find out correct signal radio by multiplying (65535/255) = 257
*/
tuner->signal = rssilvl * 257;
tuner->afc = 0;
return ret;
}
/*
* Set tuner attributes. If current mode is NOT RX, set to RX.
* Currently, we set only audio mode (mono/stereo) and RDS state (on/off).
* Should we set other tuner attributes, too?
*/
static int fm_v4l2_vidioc_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *tuner)
{
struct fmdev *fmdev = video_drvdata(file);
u16 aud_mode;
u8 rds_mode;
int ret;
if (tuner->index != 0)
return -EINVAL;
aud_mode = (tuner->audmode == V4L2_TUNER_MODE_STEREO) ?
FM_STEREO_MODE : FM_MONO_MODE;
rds_mode = (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) ?
FM_RDS_ENABLE : FM_RDS_DISABLE;
if (fmdev->curr_fmmode != FM_MODE_RX) {
ret = fmc_set_mode(fmdev, FM_MODE_RX);
if (ret < 0) {
fmerr("Failed to set RX mode\n");
return ret;
}
}
ret = fmc_set_stereo_mono(fmdev, aud_mode);
if (ret < 0) {
fmerr("Failed to set RX stereo/mono mode\n");
return ret;
}
ret = fmc_set_rds_mode(fmdev, rds_mode);
if (ret < 0)
fmerr("Failed to set RX RDS mode\n");
return ret;
}
/* Get tuner or modulator radio frequency */
static int fm_v4l2_vidioc_g_freq(struct file *file, void *priv,
struct v4l2_frequency *freq)
{
struct fmdev *fmdev = video_drvdata(file);
int ret;
ret = fmc_get_freq(fmdev, &freq->frequency);
if (ret < 0) {
fmerr("Failed to get frequency\n");
return ret;
}
/* Frequency unit of 62.5 Hz*/
freq->frequency = (u32) freq->frequency * 16;
return 0;
}
/* Set tuner or modulator radio frequency */
static int fm_v4l2_vidioc_s_freq(struct file *file, void *priv,
const struct v4l2_frequency *freq)
{
struct fmdev *fmdev = video_drvdata(file);
/*
* As V4L2_TUNER_CAP_LOW is set 1 user sends the frequency
* in units of 62.5 Hz.
*/
return fmc_set_freq(fmdev, freq->frequency / 16);
}
/* Set hardware frequency seek. If current mode is NOT RX, set it RX. */
static int fm_v4l2_vidioc_s_hw_freq_seek(struct file *file, void *priv,
const struct v4l2_hw_freq_seek *seek)
{
struct fmdev *fmdev = video_drvdata(file);
int ret;
if (file->f_flags & O_NONBLOCK)
return -EWOULDBLOCK;
if (fmdev->curr_fmmode != FM_MODE_RX) {
ret = fmc_set_mode(fmdev, FM_MODE_RX);
if (ret != 0) {
fmerr("Failed to set RX mode\n");
return ret;
}
}
ret = fm_rx_seek(fmdev, seek->seek_upward, seek->wrap_around,
seek->spacing);
if (ret < 0)
fmerr("RX seek failed - %d\n", ret);
return ret;
}
/* Get modulator attributes. If mode is not TX, return no attributes. */
static int fm_v4l2_vidioc_g_modulator(struct file *file, void *priv,
struct v4l2_modulator *mod)
{
struct fmdev *fmdev = video_drvdata(file);
if (mod->index != 0)
return -EINVAL;
if (fmdev->curr_fmmode != FM_MODE_TX)
return -EPERM;
mod->txsubchans = ((fmdev->tx_data.aud_mode == FM_STEREO_MODE) ?
V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO) |
((fmdev->tx_data.rds.flag == FM_RDS_ENABLE) ?
V4L2_TUNER_SUB_RDS : 0);
mod->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS |
V4L2_TUNER_CAP_LOW;
return 0;
}
/* Set modulator attributes. If mode is not TX, set to TX. */
static int fm_v4l2_vidioc_s_modulator(struct file *file, void *priv,
const struct v4l2_modulator *mod)
{
struct fmdev *fmdev = video_drvdata(file);
u8 rds_mode;
u16 aud_mode;
int ret;
if (mod->index != 0)
return -EINVAL;
if (fmdev->curr_fmmode != FM_MODE_TX) {
ret = fmc_set_mode(fmdev, FM_MODE_TX);
if (ret != 0) {
fmerr("Failed to set TX mode\n");
return ret;
}
}
aud_mode = (mod->txsubchans & V4L2_TUNER_SUB_STEREO) ?
FM_STEREO_MODE : FM_MONO_MODE;
rds_mode = (mod->txsubchans & V4L2_TUNER_SUB_RDS) ?
FM_RDS_ENABLE : FM_RDS_DISABLE;
ret = fm_tx_set_stereo_mono(fmdev, aud_mode);
if (ret < 0) {
fmerr("Failed to set mono/stereo mode for TX\n");
return ret;
}
ret = fm_tx_set_rds_mode(fmdev, rds_mode);
if (ret < 0)
fmerr("Failed to set rds mode for TX\n");
return ret;
}
static const struct v4l2_file_operations fm_drv_fops = {
.owner = THIS_MODULE,
.read = fm_v4l2_fops_read,
.write = fm_v4l2_fops_write,
.poll = fm_v4l2_fops_poll,
.unlocked_ioctl = video_ioctl2,
.open = fm_v4l2_fops_open,
.release = fm_v4l2_fops_release,
};
static const struct v4l2_ctrl_ops fm_ctrl_ops = {
.s_ctrl = fm_v4l2_s_ctrl,
.g_volatile_ctrl = fm_g_volatile_ctrl,
};
static const struct v4l2_ioctl_ops fm_drv_ioctl_ops = {
.vidioc_querycap = fm_v4l2_vidioc_querycap,
.vidioc_g_audio = fm_v4l2_vidioc_g_audio,
.vidioc_s_audio = fm_v4l2_vidioc_s_audio,
.vidioc_g_tuner = fm_v4l2_vidioc_g_tuner,
.vidioc_s_tuner = fm_v4l2_vidioc_s_tuner,
.vidioc_g_frequency = fm_v4l2_vidioc_g_freq,
.vidioc_s_frequency = fm_v4l2_vidioc_s_freq,
.vidioc_s_hw_freq_seek = fm_v4l2_vidioc_s_hw_freq_seek,
.vidioc_g_modulator = fm_v4l2_vidioc_g_modulator,
.vidioc_s_modulator = fm_v4l2_vidioc_s_modulator
};
/* V4L2 RADIO device parent structure */
static const struct video_device fm_viddev_template = {
.fops = &fm_drv_fops,
.ioctl_ops = &fm_drv_ioctl_ops,
.name = FM_DRV_NAME,
.release = video_device_release_empty,
/*
* To ensure both the tuner and modulator ioctls are accessible we
* set the vfl_dir to M2M to indicate this.
*
* It is not really a mem2mem device of course, but it can both receive
* and transmit using the same radio device. It's the only radio driver
* that does this and it should really be split in two radio devices,
* but that would affect applications using this driver.
*/
.vfl_dir = VFL_DIR_M2M,
.device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_TUNER | V4L2_CAP_RADIO |
V4L2_CAP_MODULATOR | V4L2_CAP_AUDIO |
V4L2_CAP_READWRITE | V4L2_CAP_RDS_CAPTURE,
};
int fm_v4l2_init_video_device(struct fmdev *fmdev, int radio_nr)
{
struct v4l2_ctrl *ctrl;
int ret;
strscpy(fmdev->v4l2_dev.name, FM_DRV_NAME,
sizeof(fmdev->v4l2_dev.name));
ret = v4l2_device_register(NULL, &fmdev->v4l2_dev);
if (ret < 0)
return ret;
/* Init mutex for core locking */
mutex_init(&fmdev->mutex);
/* Setup FM driver's V4L2 properties */
gradio_dev = fm_viddev_template;
video_set_drvdata(&gradio_dev, fmdev);
gradio_dev.lock = &fmdev->mutex;
gradio_dev.v4l2_dev = &fmdev->v4l2_dev;
/* Register with V4L2 subsystem as RADIO device */
if (video_register_device(&gradio_dev, VFL_TYPE_RADIO, radio_nr)) {
v4l2_device_unregister(&fmdev->v4l2_dev);
fmerr("Could not register video device\n");
return -ENOMEM;
}
fmdev->radio_dev = &gradio_dev;
/* Register to v4l2 ctrl handler framework */
fmdev->radio_dev->ctrl_handler = &fmdev->ctrl_handler;
ret = v4l2_ctrl_handler_init(&fmdev->ctrl_handler, 5);
if (ret < 0) {
fmerr("(fmdev): Can't init ctrl handler\n");
v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
video_unregister_device(fmdev->radio_dev);
v4l2_device_unregister(&fmdev->v4l2_dev);
return -EBUSY;
}
/*
* Following controls are handled by V4L2 control framework.
* Added in ascending ID order.
*/
v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
V4L2_CID_AUDIO_VOLUME, FM_RX_VOLUME_MIN,
FM_RX_VOLUME_MAX, 1, FM_RX_VOLUME_MAX);
v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
v4l2_ctrl_new_std_menu(&fmdev->ctrl_handler, &fm_ctrl_ops,
V4L2_CID_TUNE_PREEMPHASIS, V4L2_PREEMPHASIS_75_uS,
0, V4L2_PREEMPHASIS_75_uS);
v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
V4L2_CID_TUNE_POWER_LEVEL, FM_PWR_LVL_LOW,
FM_PWR_LVL_HIGH, 1, FM_PWR_LVL_HIGH);
ctrl = v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0,
255, 1, 255);
if (ctrl)
ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
return 0;
}
void *fm_v4l2_deinit_video_device(void)
{
struct fmdev *fmdev;
fmdev = video_get_drvdata(&gradio_dev);
/* Unregister to v4l2 ctrl handler framework*/
v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
/* Unregister RADIO device from V4L2 subsystem */
video_unregister_device(&gradio_dev);
v4l2_device_unregister(&fmdev->v4l2_dev);
return fmdev;
}

20
drivers/media/radio/wl128x/fmdrv_v4l2.h
View File

@ -1,20 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* FM Driver for Connectivity chip of Texas Instruments.
*
* FM V4L2 module header.
*
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _FMDRV_V4L2_H
#define _FMDRV_V4L2_H
#include <media/v4l2-ioctl.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
int fm_v4l2_init_video_device(struct fmdev *, int);
void *fm_v4l2_deinit_video_device(void);
#endif