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Viewing changes to drivers/media/video/vpx3220.c

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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drivers/media/video/vpx3220.c
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#include <linux/videodev2.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
 
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#include <media/v4l2-ctrls.h>
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MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver");
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MODULE_AUTHOR("Laurent Pinchart");
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struct vpx3220 {
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        struct v4l2_subdev sd;
 
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        struct v4l2_ctrl_handler hdl;
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        unsigned char reg[255];
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        v4l2_std_id norm;
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        int ident;
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        int input;
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        int enable;
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        int bright;
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        int contrast;
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        int hue;
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        int sat;
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};
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static inline struct vpx3220 *to_vpx3220(struct v4l2_subdev *sd)
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        return container_of(sd, struct vpx3220, sd);
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}
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static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 
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{
 
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        return &container_of(ctrl->handler, struct vpx3220, hdl)->sd;
 
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}
 
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static char *inputs[] = { "internal", "composite", "svideo" };
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/* ----------------------------------------------------------------------- */
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        /* Here we back up the input selection because it gets
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           overwritten when we fill the registers with the
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           choosen video norm */
 
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           chosen video norm */
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        temp_input = vpx3220_fp_read(sd, 0xf2);
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        v4l2_dbg(1, debug, sd, "s_std %llx\n", (unsigned long long)std);
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        return 0;
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}
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static int vpx3220_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
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{
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        switch (qc->id) {
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        case V4L2_CID_BRIGHTNESS:
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                v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
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                break;
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        case V4L2_CID_CONTRAST:
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                v4l2_ctrl_query_fill(qc, 0, 63, 1, 32);
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                break;
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        case V4L2_CID_SATURATION:
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                v4l2_ctrl_query_fill(qc, 0, 4095, 1, 2048);
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                break;
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        case V4L2_CID_HUE:
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                v4l2_ctrl_query_fill(qc, -512, 511, 1, 0);
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                break;
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        default:
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                return -EINVAL;
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        }
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        return 0;
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}
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static int vpx3220_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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        struct vpx3220 *decoder = to_vpx3220(sd);
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        switch (ctrl->id) {
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        case V4L2_CID_BRIGHTNESS:
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                ctrl->value = decoder->bright;
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                break;
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        case V4L2_CID_CONTRAST:
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                ctrl->value = decoder->contrast;
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                break;
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        case V4L2_CID_SATURATION:
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                ctrl->value = decoder->sat;
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                break;
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        case V4L2_CID_HUE:
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                ctrl->value = decoder->hue;
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                break;
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        default:
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                return -EINVAL;
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        }
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        return 0;
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}
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static int vpx3220_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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        struct vpx3220 *decoder = to_vpx3220(sd);
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        switch (ctrl->id) {
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        case V4L2_CID_BRIGHTNESS:
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                if (decoder->bright != ctrl->value) {
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                        decoder->bright = ctrl->value;
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                        vpx3220_write(sd, 0xe6, decoder->bright);
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                }
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                break;
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        case V4L2_CID_CONTRAST:
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                if (decoder->contrast != ctrl->value) {
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                        /* Bit 7 and 8 is for noise shaping */
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                        decoder->contrast = ctrl->value;
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                        vpx3220_write(sd, 0xe7, decoder->contrast + 192);
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                }
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                break;
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        case V4L2_CID_SATURATION:
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                if (decoder->sat != ctrl->value) {
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                        decoder->sat = ctrl->value;
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                        vpx3220_fp_write(sd, 0xa0, decoder->sat);
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                }
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                break;
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        case V4L2_CID_HUE:
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                if (decoder->hue != ctrl->value) {
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                        decoder->hue = ctrl->value;
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                        vpx3220_fp_write(sd, 0x1c, decoder->hue);
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                }
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                break;
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        default:
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                return -EINVAL;
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        }
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        return 0;
 
423
static int vpx3220_s_ctrl(struct v4l2_ctrl *ctrl)
 
424
{
 
425
        struct v4l2_subdev *sd = to_sd(ctrl);
 
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427
        switch (ctrl->id) {
 
428
        case V4L2_CID_BRIGHTNESS:
 
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                vpx3220_write(sd, 0xe6, ctrl->val);
 
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                return 0;
 
431
        case V4L2_CID_CONTRAST:
 
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                /* Bit 7 and 8 is for noise shaping */
 
433
                vpx3220_write(sd, 0xe7, ctrl->val + 192);
 
434
                return 0;
 
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        case V4L2_CID_SATURATION:
 
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                vpx3220_fp_write(sd, 0xa0, ctrl->val);
 
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                return 0;
 
438
        case V4L2_CID_HUE:
 
439
                vpx3220_fp_write(sd, 0x1c, ctrl->val);
 
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                return 0;
 
441
        }
 
442
        return -EINVAL;
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}
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static int vpx3220_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
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/* ----------------------------------------------------------------------- */
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454
 
 
455
static const struct v4l2_ctrl_ops vpx3220_ctrl_ops = {
 
456
        .s_ctrl = vpx3220_s_ctrl,
 
457
};
 
458
 
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static const struct v4l2_subdev_core_ops vpx3220_core_ops = {
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        .g_chip_ident = vpx3220_g_chip_ident,
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        .init = vpx3220_init,
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        .g_ctrl = vpx3220_g_ctrl,
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        .s_ctrl = vpx3220_s_ctrl,
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        .queryctrl = vpx3220_queryctrl,
 
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        .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
 
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        .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
 
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        .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
 
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        .g_ctrl = v4l2_subdev_g_ctrl,
 
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        .s_ctrl = v4l2_subdev_s_ctrl,
 
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        .queryctrl = v4l2_subdev_queryctrl,
 
468
        .querymenu = v4l2_subdev_querymenu,
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        .s_std = vpx3220_s_std,
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};
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471
 
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        decoder->norm = V4L2_STD_PAL;
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        decoder->input = 0;
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        decoder->enable = 1;
561
 
        decoder->bright = 32768;
562
 
        decoder->contrast = 32768;
563
 
        decoder->hue = 32768;
564
 
        decoder->sat = 32768;
 
510
        v4l2_ctrl_handler_init(&decoder->hdl, 4);
 
511
        v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops,
 
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                V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
 
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        v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops,
 
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                V4L2_CID_CONTRAST, 0, 63, 1, 32);
 
515
        v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops,
 
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                V4L2_CID_SATURATION, 0, 4095, 1, 2048);
 
517
        v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops,
 
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                V4L2_CID_HUE, -512, 511, 1, 0);
 
519
        sd->ctrl_handler = &decoder->hdl;
 
520
        if (decoder->hdl.error) {
 
521
                int err = decoder->hdl.error;
 
522
 
 
523
                v4l2_ctrl_handler_free(&decoder->hdl);
 
524
                kfree(decoder);
 
525
                return err;
 
526
        }
 
527
        v4l2_ctrl_handler_setup(&decoder->hdl);
565
528
 
566
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        ver = i2c_smbus_read_byte_data(client, 0x00);
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        pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) +
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static int vpx3220_remove(struct i2c_client *client)
600
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{
601
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        struct v4l2_subdev *sd = i2c_get_clientdata(client);
 
565
        struct vpx3220 *decoder = to_vpx3220(sd);
602
566
 
603
567
        v4l2_device_unregister_subdev(sd);
604
 
        kfree(to_vpx3220(sd));
 
568
        v4l2_ctrl_handler_free(&decoder->hdl);
 
569
        kfree(decoder);
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        return 0;
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}
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