| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Manjunatha Halli | 592 | 96.10% | 1 | 11.11% |
| Hans Verkuil | 8 | 1.30% | 1 | 11.11% |
| Allen Pais | 6 | 0.97% | 1 | 11.11% |
| Mauro Carvalho Chehab | 5 | 0.81% | 4 | 44.44% |
| A Sun | 3 | 0.49% | 1 | 11.11% |
| Thomas Gleixner | 2 | 0.32% | 1 | 11.11% |
| Total | 616 | 9 |
/* 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
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1