[glsdk/meta-ti-glsdk.git] / recipes-kernel / linux / linux-omap / wl1271 / 0007-drivers-media-radio-wl128x-FM-Driver-common-header-f.patch
1 From f568ec9bb6ccd1e17278dcab3fbc810cf2e071ac Mon Sep 17 00:00:00 2001
2 From: Manjunatha Halli <manjunatha_halli@ti.com>
3 Date: Tue, 11 Jan 2011 11:31:21 +0000
4 Subject: [PATCH 07/15] drivers:media:radio: wl128x: FM Driver common header file
6 These are common headers used in FM submodules (FM V4L2,
7 FM common, FM Rx,and FM TX).
9 Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
10 Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
11 ---
12 drivers/media/radio/wl128x/fmdrv.h | 244 ++++++++++++++++++++++++++++++++++++
13 1 files changed, 244 insertions(+), 0 deletions(-)
14 create mode 100644 drivers/media/radio/wl128x/fmdrv.h
16 diff --git a/drivers/media/radio/wl128x/fmdrv.h b/drivers/media/radio/wl128x/fmdrv.h
17 new file mode 100644
18 index 0000000..392b62d
19 --- /dev/null
20 +++ b/drivers/media/radio/wl128x/fmdrv.h
21 @@ -0,0 +1,244 @@
22 +/*
23 + * FM Driver for Connectivity chip of Texas Instruments.
24 + *
25 + * Common header for all FM driver sub-modules.
26 + *
27 + * Copyright (C) 2011 Texas Instruments
28 + *
29 + * This program is free software; you can redistribute it and/or modify
30 + * it under the terms of the GNU General Public License version 2 as
31 + * published by the Free Software Foundation.
32 + *
33 + * This program is distributed in the hope that it will be useful,
34 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
35 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
36 + * GNU General Public License for more details.
37 + *
38 + * You should have received a copy of the GNU General Public License
39 + * along with this program; if not, write to the Free Software
40 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
41 + *
42 + */
43 +
44 +#ifndef _FM_DRV_H
45 +#define _FM_DRV_H
46 +
47 +#include <linux/skbuff.h>
48 +#include <linux/interrupt.h>
49 +#include <sound/core.h>
50 +#include <sound/initval.h>
51 +#include <linux/timer.h>
52 +#include <linux/version.h>
53 +#include <media/v4l2-ioctl.h>
54 +#include <media/v4l2-common.h>
55 +#include <media/v4l2-ctrls.h>
56 +
57 +#define FM_DRV_VERSION "0.09"
58 +/* Should match with FM_DRV_VERSION */
59 +#define FM_DRV_RADIO_VERSION KERNEL_VERSION(0, 0, 1)
60 +#define FM_DRV_NAME "ti_fmdrv"
61 +#define FM_DRV_CARD_SHORT_NAME "TI FM Radio"
62 +#define FM_DRV_CARD_LONG_NAME "Texas Instruments FM Radio"
63 +
64 +/* Flag info */
65 +#define FM_INTTASK_RUNNING 0
66 +#define FM_INTTASK_SCHEDULE_PENDING 1
67 +#define FM_FW_DW_INPROGRESS 2
68 +#define FM_CORE_READY 3
69 +#define FM_CORE_TRANSPORT_READY 4
70 +#define FM_AF_SWITCH_INPROGRESS 5
71 +#define FM_CORE_TX_XMITING 6
72 +
73 +#define FM_TUNE_COMPLETE 0x1
74 +#define FM_BAND_LIMIT 0x2
75 +
76 +#define FM_DRV_TX_TIMEOUT (5*HZ) /* 5 seconds */
77 +#define FM_DRV_RX_SEEK_TIMEOUT (20*HZ) /* 20 seconds */
78 +
79 +#define NO_OF_ENTRIES_IN_ARRAY(array) (sizeof(array) / sizeof(array[0]))
80 +
81 +#define fmerr(format, ...) \
82 + printk(KERN_ERR "fmdrv: " format, ## __VA_ARGS__)
83 +#define fmwarn(format, ...) \
84 + printk(KERN_WARNING "fmdrv: " format, ##__VA_ARGS__)
85 +#ifdef DEBUG
86 +#define fmdbg(format, ...) \
87 + printk(KERN_DEBUG "fmdrv: " format, ## __VA_ARGS__)
88 +#else /* DEBUG */
89 +#define fmdbg(format, ...)
90 +#endif
91 +enum {
92 + FM_MODE_OFF,
93 + FM_MODE_TX,
94 + FM_MODE_RX,
95 + FM_MODE_ENTRY_MAX
96 +};
97 +
98 +#define FM_RX_RDS_INFO_FIELD_MAX 8 /* 4 Group * 2 Bytes */
99 +
100 +/* RX RDS data format */
101 +struct fm_rdsdata_format {
102 + union {
103 + struct {
104 + u8 buff[FM_RX_RDS_INFO_FIELD_MAX];
105 + } groupdatabuff;
106 + struct {
107 + u16 pidata;
108 + u8 blk_b[2];
109 + u8 blk_c[2];
110 + u8 blk_d[2];
111 + } groupgeneral;
112 + struct {
113 + u16 pidata;
114 + u8 blk_b[2];
115 + u8 af[2];
116 + u8 ps[2];
117 + } group0A;
118 + struct {
119 + u16 pi[2];
120 + u8 blk_b[2];
121 + u8 ps[2];
122 + } group0B;
123 + } data;
124 +};
125 +
126 +/* FM region (Europe/US, Japan) info */
127 +struct region_info {
128 + u32 chanl_space;
129 + u32 bot_freq;
130 + u32 top_freq;
131 + u8 fm_band;
132 +};
133 +struct fmdev;
134 +typedef void (*int_handler_prototype) (struct fmdev *);
135 +
136 +/* FM Interrupt processing related info */
137 +struct fm_irq {
138 + u8 stage;
139 + u16 flag; /* FM interrupt flag */
140 + u16 mask; /* FM interrupt mask */
141 + /* Interrupt process timeout handler */
142 + struct timer_list timer;
143 + u8 retry;
144 + int_handler_prototype *handlers;
145 +};
146 +
147 +/* RDS info */
148 +struct fm_rds {
149 + u8 flag; /* RX RDS on/off status */
150 + u8 last_blk_idx; /* Last received RDS block */
151 +
152 + /* RDS buffer */
153 + wait_queue_head_t read_queue;
154 + u32 buf_size; /* Size is always multiple of 3 */
155 + u32 wr_idx;
156 + u32 rd_idx;
157 + u8 *buff;
158 +};
159 +
160 +#define FM_RDS_MAX_AF_LIST 25
161 +
162 +/*
163 + * Current RX channel Alternate Frequency cache.
164 + * This info is used to switch to other freq (AF)
165 + * when current channel signal strengh is below RSSI threshold.
166 + */
167 +struct tuned_station_info {
168 + u16 picode;
169 + u32 af_cache[FM_RDS_MAX_AF_LIST];
170 + u8 afcache_size;
171 + u8 af_list_max;
172 +};
173 +
174 +/* FM RX mode info */
175 +struct fm_rx {
176 + struct region_info region; /* Current selected band */
177 + u32 freq; /* Current RX frquency */
178 + u8 mute_mode; /* Current mute mode */
179 + u8 deemphasis_mode; /* Current deemphasis mode */
180 + /* RF dependent soft mute mode */
181 + u8 rf_depend_mute;
182 + u16 volume; /* Current volume level */
183 + u16 rssi_threshold; /* Current RSSI threshold level */
184 + /* Holds the index of the current AF jump */
185 + u8 afjump_idx;
186 + /* Will hold the frequency before the jump */
187 + u32 freq_before_jump;
188 + u8 rds_mode; /* RDS operation mode (RDS/RDBS) */
189 + u8 af_mode; /* Alternate frequency on/off */
190 + struct tuned_station_info stat_info;
191 + struct fm_rds rds;
192 +};
193 +
194 +#define FMTX_RDS_TXT_STR_SIZE 25
195 +/*
196 + * FM TX RDS data
197 + *
198 + * @ text_type: is the text following PS or RT
199 + * @ text: radio text string which could either be PS or RT
200 + * @ af_freq: alternate frequency for Tx
201 + * TODO: to be declared in application
202 + */
203 +struct tx_rds {
204 + u8 text_type;
205 + u8 text[FMTX_RDS_TXT_STR_SIZE];
206 + u8 flag;
207 + u32 af_freq;
208 +};
209 +/*
210 + * FM TX global data
211 + *
212 + * @ pwr_lvl: Power Level of the Transmission from mixer control
213 + * @ xmit_state: Transmission state = Updated locally upon Start/Stop
214 + * @ audio_io: i2S/Analog
215 + * @ tx_frq: Transmission frequency
216 + */
217 +struct fmtx_data {
218 + u8 pwr_lvl;
219 + u8 xmit_state;
220 + u8 audio_io;
221 + u8 region;
222 + u16 aud_mode;
223 + u32 preemph;
224 + u32 tx_frq;
225 + struct tx_rds rds;
226 +};
227 +
228 +/* FM driver operation structure */
229 +struct fmdev {
230 + struct video_device *radio_dev; /* V4L2 video device pointer */
231 + struct snd_card *card; /* Card which holds FM mixer controls */
232 + u16 asci_id;
233 + spinlock_t rds_buff_lock; /* To protect access to RDS buffer */
234 + spinlock_t resp_skb_lock; /* To protect access to received SKB */
235 +
236 + long flag; /* FM driver state machine info */
237 + u8 streg_cbdata; /* status of ST registration */
238 +
239 + struct sk_buff_head rx_q; /* RX queue */
240 + struct tasklet_struct rx_task; /* RX Tasklet */
241 +
242 + struct sk_buff_head tx_q; /* TX queue */
243 + struct tasklet_struct tx_task; /* TX Tasklet */
244 + unsigned long last_tx_jiffies; /* Timestamp of last pkt sent */
245 + atomic_t tx_cnt; /* Number of packets can send at a time */
246 +
247 + struct sk_buff *resp_skb; /* Response from the chip */
248 + /* Main task completion handler */
249 + struct completion maintask_comp;
250 + /* Opcode of last command sent to the chip */
251 + u8 pre_op;
252 + /* Handler used for wakeup when response packet is received */
253 + struct completion *resp_comp;
254 + struct fm_irq irq_info;
255 + u8 curr_fmmode; /* Current FM chip mode (TX, RX, OFF) */
256 + struct fm_rx rx; /* FM receiver info */
257 + struct fmtx_data tx_data;
258 +
259 + /* V4L2 ctrl framwork handler*/
260 + struct v4l2_ctrl_handler ctrl_handler;
261 +
262 + /* For core assisted locking */
263 + struct mutex mutex;
264 +};
265 +#endif
266 --
267 1.6.6.1