drivers/media/video/tlg2300/pd-common.h

   1 #ifndef PD_COMMON_H
   2 #define PD_COMMON_H
   3
   4 #include <linux/fs.h>
   5 #include <linux/wait.h>
   6 #include <linux/list.h>
   7 #include <linux/videodev2.h>
   8 #include <linux/semaphore.h>
   9 #include <linux/usb.h>
  10 #include <linux/poll.h>
  11 #include <media/videobuf-vmalloc.h>
  12 #include <media/v4l2-device.h>
  13
  14 #include "dvb_frontend.h"
  15 #include "dvbdev.h"
  16 #include "dvb_demux.h"
  17 #include "dmxdev.h"
  18
  19 #define SBUF_NUM        8
  20 #define MAX_BUFFER_NUM  6
  21 #define PK_PER_URB      32
  22 #define ISO_PKT_SIZE    3072
  23
  24 #define POSEIDON_STATE_NONE             (0x0000)
  25 #define POSEIDON_STATE_ANALOG           (0x0001)
  26 #define POSEIDON_STATE_FM               (0x0002)
  27 #define POSEIDON_STATE_DVBT             (0x0004)
  28 #define POSEIDON_STATE_VBI              (0x0008)
  29 #define POSEIDON_STATE_DISCONNECT       (0x0080)
  30
  31 #define PM_SUSPEND_DELAY        3
  32
  33 #define V4L_PAL_VBI_LINES       18
  34 #define V4L_NTSC_VBI_LINES      12
  35 #define V4L_PAL_VBI_FRAMESIZE   (V4L_PAL_VBI_LINES * 1440 * 2)
  36 #define V4L_NTSC_VBI_FRAMESIZE  (V4L_NTSC_VBI_LINES * 1440 * 2)
  37
  38 #define TUNER_FREQ_MIN          (45000000)
  39 #define TUNER_FREQ_MAX          (862000000)
  40
  41 struct vbi_data {
  42         struct video_device     *v_dev;
  43         struct video_data       *video;
  44         struct front_face       *front;
  45
  46         unsigned int            copied;
  47         unsigned int            vbi_size; /* the whole size of two fields */
  48         int                     users;
  49 };
  50
  51 /*
  52  * This is the running context of the video, it is useful for
  53  * resume()
  54  */
  55 struct running_context {
  56         u32             freq;           /* VIDIOC_S_FREQUENCY */
  57         int             audio_idx;      /* VIDIOC_S_TUNER    */
  58         v4l2_std_id     tvnormid;       /* VIDIOC_S_STD     */
  59         int             sig_index;      /* VIDIOC_S_INPUT  */
  60         struct v4l2_pix_format pix;     /* VIDIOC_S_FMT   */
  61 };
  62
  63 struct video_data {
  64         /* v4l2 video device */
  65         struct video_device     *v_dev;
  66
  67         /* the working context */
  68         struct running_context  context;
  69
  70         /* for data copy */
  71         int             field_count;
  72
  73         char            *dst;
  74         int             lines_copied;
  75         int             prev_left;
  76
  77         int             lines_per_field;
  78         int             lines_size;
  79
  80         /* for communication */
  81         u8                      endpoint_addr;
  82         struct urb              *urb_array[SBUF_NUM];
  83         struct vbi_data         *vbi;
  84         struct poseidon         *pd;
  85         struct front_face       *front;
  86
  87         int                     is_streaming;
  88         int                     users;
  89
  90         /* for bubble handler */
  91         struct work_struct      bubble_work;
  92 };
  93
  94 enum pcm_stream_state {
  95         STREAM_OFF,
  96         STREAM_ON,
  97         STREAM_SUSPEND,
  98 };
  99
 100 #define AUDIO_BUFS (3)
 101 #define CAPTURE_STREAM_EN 1
 102 struct poseidon_audio {
 103         struct urb              *urb_array[AUDIO_BUFS];
 104         unsigned int            copied_position;
 105         struct snd_pcm_substream   *capture_pcm_substream;
 106
 107         unsigned int            rcv_position;
 108         struct  snd_card        *card;
 109         int                     card_close;
 110
 111         int                     users;
 112         int                     pm_state;
 113         enum pcm_stream_state   capture_stream;
 114 };
 115
 116 struct radio_data {
 117         __u32           fm_freq;
 118         int             users;
 119         unsigned int    is_radio_streaming;
 120         int             pre_emphasis;
 121         struct video_device *fm_dev;
 122 };
 123
 124 #define DVB_SBUF_NUM            4
 125 #define DVB_URB_BUF_SIZE        0x2000
 126 struct pd_dvb_adapter {
 127         struct dvb_adapter      dvb_adap;
 128         struct dvb_frontend     dvb_fe;
 129         struct dmxdev           dmxdev;
 130         struct dvb_demux        demux;
 131
 132         atomic_t                users;
 133         atomic_t                active_feed;
 134
 135         /* data transfer */
 136         s32                     is_streaming;
 137         struct urb              *urb_array[DVB_SBUF_NUM];
 138         struct poseidon         *pd_device;
 139         u8                      ep_addr;
 140         u8                      reserved[3];
 141
 142         /* data for power resume*/
 143         struct dvb_frontend_parameters fe_param;
 144
 145         /* for channel scanning */
 146         int             prev_freq;
 147         int             bandwidth;
 148         unsigned long   last_jiffies;
 149 };
 150
 151 struct front_face {
 152         /* use this field to distinguish VIDEO and VBI */
 153         enum v4l2_buf_type      type;
 154
 155         /* for host */
 156         struct videobuf_queue   q;
 157
 158         /* the bridge for host and device */
 159         struct videobuf_buffer  *curr_frame;
 160
 161         /* for device */
 162         spinlock_t              queue_lock;
 163         struct list_head        active;
 164         struct poseidon         *pd;
 165 };
 166
 167 struct poseidon {
 168         struct list_head        device_list;
 169
 170         struct mutex            lock;
 171         struct kref             kref;
 172
 173         /* for V4L2 */
 174         struct v4l2_device      v4l2_dev;
 175
 176         /* hardware info */
 177         struct usb_device       *udev;
 178         struct usb_interface    *interface;
 179         int                     cur_transfer_mode;
 180
 181         struct video_data       video_data;     /* video */
 182         struct vbi_data         vbi_data;       /* vbi   */
 183         struct poseidon_audio   audio;          /* audio (alsa) */
 184         struct radio_data       radio_data;     /* FM    */
 185         struct pd_dvb_adapter   dvb_data;       /* DVB   */
 186
 187         u32                     state;
 188         struct file             *file_for_stream; /* the active stream*/
 189
 190 #ifdef CONFIG_PM
 191         int (*pm_suspend)(struct poseidon *);
 192         int (*pm_resume)(struct poseidon *);
 193         pm_message_t            msg;
 194
 195         struct work_struct      pm_work;
 196         u8                      portnum;
 197 #endif
 198 };
 199
 200 struct poseidon_format {
 201         char    *name;
 202         int     fourcc;          /* video4linux 2         */
 203         int     depth;           /* bit/pixel             */
 204         int     flags;
 205 };
 206
 207 struct poseidon_tvnorm {
 208         v4l2_std_id     v4l2_id;
 209         char            name[12];
 210         u32             tlg_tvnorm;
 211 };
 212
 213 /* video */
 214 int pd_video_init(struct poseidon *);
 215 void pd_video_exit(struct poseidon *);
 216 int stop_all_video_stream(struct poseidon *);
 217
 218 /* alsa audio */
 219 int poseidon_audio_init(struct poseidon *);
 220 int poseidon_audio_free(struct poseidon *);
 221 #ifdef CONFIG_PM
 222 int pm_alsa_suspend(struct poseidon *);
 223 int pm_alsa_resume(struct poseidon *);
 224 #endif
 225
 226 /* dvb */
 227 int pd_dvb_usb_device_init(struct poseidon *);
 228 void pd_dvb_usb_device_exit(struct poseidon *);
 229 void pd_dvb_usb_device_cleanup(struct poseidon *);
 230 int pd_dvb_get_adapter_num(struct pd_dvb_adapter *);
 231 void dvb_stop_streaming(struct pd_dvb_adapter *);
 232
 233 /* FM */
 234 int poseidon_fm_init(struct poseidon *);
 235 int poseidon_fm_exit(struct poseidon *);
 236 struct video_device *vdev_init(struct poseidon *, struct video_device *);
 237
 238 /* vendor command ops */
 239 int send_set_req(struct poseidon*, u8, s32, s32*);
 240 int send_get_req(struct poseidon*, u8, s32, void*, s32*, s32);
 241 s32 set_tuner_mode(struct poseidon*, unsigned char);
 242
 243 /* bulk urb alloc/free */
 244 int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
 245                         struct usb_device *udev, u8 ep_addr,
 246                         int buf_size, gfp_t gfp_flags,
 247                         usb_complete_t complete_fn, void *context);
 248 void free_all_urb_generic(struct urb **urb_array, int num);
 249
 250 /* misc */
 251 void poseidon_delete(struct kref *kref);
 252 void destroy_video_device(struct video_device **v_dev);
 253 extern int debug_mode;
 254 void set_debug_mode(struct video_device *vfd, int debug_mode);
 255
 256 #ifdef CONFIG_PM
 257 #define in_hibernation(pd) (pd->msg.event == PM_EVENT_FREEZE)
 258 #else
 259 #define in_hibernation(pd) (0)
 260 #endif
 261 #define get_pm_count(p) (atomic_read(&(p)->interface->pm_usage_cnt))
 262
 263 #define log(a, ...) printk(KERN_DEBUG "\t[ %s : %.3d ] "a"\n", \
 264                                 __func__, __LINE__,  ## __VA_ARGS__)
 265
 266 /* for power management */
 267 #define logpm(pd) do {\
 268                         if (debug_mode & 0x10)\
 269                                 log();\
 270                 } while (0)
 271
 272 #define logs(f) do { \
 273                         if ((debug_mode & 0x4) && \
 274                                 (f)->type == V4L2_BUF_TYPE_VBI_CAPTURE) \
 275                                         log("type : VBI");\
 276                                                                 \
 277                         if ((debug_mode & 0x8) && \
 278                                 (f)->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) \
 279                                         log("type : VIDEO");\
 280                 } while (0)
 281 #endif