diff options
Diffstat (limited to 'drivers/media/i2c/adv7604.c')
| -rw-r--r-- | drivers/media/i2c/adv7604.c | 97 |
1 files changed, 74 insertions, 23 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 272945a878b3..e271782b7b70 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -42,7 +42,7 @@ module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "debug level (0-2)"); MODULE_DESCRIPTION("Analog Devices ADV7604/10/11/12 video decoder driver"); -MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); +MODULE_AUTHOR("Hans Verkuil <hansverk@cisco.com>"); MODULE_AUTHOR("Mats Randgaard <mats.randgaard@cisco.com>"); MODULE_LICENSE("GPL"); @@ -193,6 +193,9 @@ struct adv76xx_state { struct delayed_work delayed_work_enable_hotplug; bool restart_stdi_once; + struct dentry *debugfs_dir; + struct v4l2_debugfs_if *infoframes; + /* CEC */ struct cec_adapter *cec_adap; u8 cec_addr[ADV76XX_MAX_ADDRS]; @@ -1405,12 +1408,13 @@ static int stdi2dv_timings(struct v4l2_subdev *sd, if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs, 0, (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), - false, timings)) + false, adv76xx_get_dv_timings_cap(sd, -1), timings)) return 0; if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs, (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), - false, state->aspect_ratio, timings)) + false, state->aspect_ratio, + adv76xx_get_dv_timings_cap(sd, -1), timings)) return 0; v4l2_dbg(2, debug, sd, @@ -2458,10 +2462,9 @@ static const struct adv76xx_cfg_read_infoframe adv76xx_cri[] = { { "Vendor", 0x10, 0xec, 0x54 } }; -static int adv76xx_read_infoframe(struct v4l2_subdev *sd, int index, - union hdmi_infoframe *frame) +static int adv76xx_read_infoframe_buf(struct v4l2_subdev *sd, int index, + u8 buf[V4L2_DEBUGFS_IF_MAX_LEN]) { - uint8_t buffer[32]; u8 len; int i; @@ -2472,27 +2475,20 @@ static int adv76xx_read_infoframe(struct v4l2_subdev *sd, int index, } for (i = 0; i < 3; i++) - buffer[i] = infoframe_read(sd, - adv76xx_cri[index].head_addr + i); + buf[i] = infoframe_read(sd, adv76xx_cri[index].head_addr + i); - len = buffer[2] + 1; + len = buf[2] + 1; - if (len + 3 > sizeof(buffer)) { + if (len + 3 > V4L2_DEBUGFS_IF_MAX_LEN) { v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, adv76xx_cri[index].desc, len); return -ENOENT; } for (i = 0; i < len; i++) - buffer[i + 3] = infoframe_read(sd, - adv76xx_cri[index].payload_addr + i); - - if (hdmi_infoframe_unpack(frame, buffer, len + 3) < 0) { - v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, - adv76xx_cri[index].desc); - return -ENOENT; - } - return 0; + buf[i + 3] = infoframe_read(sd, + adv76xx_cri[index].payload_addr + i); + return len + 3; } static void adv76xx_log_infoframes(struct v4l2_subdev *sd) @@ -2505,10 +2501,19 @@ static void adv76xx_log_infoframes(struct v4l2_subdev *sd) } for (i = 0; i < ARRAY_SIZE(adv76xx_cri); i++) { - union hdmi_infoframe frame; struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buffer[V4L2_DEBUGFS_IF_MAX_LEN] = {}; + union hdmi_infoframe frame; + int len; - if (!adv76xx_read_infoframe(sd, i, &frame)) + len = adv76xx_read_infoframe_buf(sd, i, buffer); + if (len < 0) + continue; + + if (hdmi_infoframe_unpack(&frame, buffer, len) < 0) + v4l2_err(sd, "%s: unpack of %s infoframe failed\n", + __func__, adv76xx_cri[i].desc); + else hdmi_infoframe_log(KERN_INFO, &client->dev, &frame); } } @@ -2694,6 +2699,41 @@ static int adv76xx_subscribe_event(struct v4l2_subdev *sd, } } +static ssize_t +adv76xx_debugfs_if_read(u32 type, void *priv, struct file *filp, + char __user *ubuf, size_t count, loff_t *ppos) +{ + u8 buf[V4L2_DEBUGFS_IF_MAX_LEN] = {}; + struct v4l2_subdev *sd = priv; + int index; + int len; + + if (!is_hdmi(sd)) + return 0; + + switch (type) { + case V4L2_DEBUGFS_IF_AVI: + index = 0; + break; + case V4L2_DEBUGFS_IF_AUDIO: + index = 1; + break; + case V4L2_DEBUGFS_IF_SPD: + index = 2; + break; + case V4L2_DEBUGFS_IF_HDMI: + index = 3; + break; + default: + return 0; + } + + len = adv76xx_read_infoframe_buf(sd, index, buf); + if (len > 0) + len = simple_read_from_buffer(ubuf, count, ppos, buf, len); + return len < 0 ? 0 : len; +} + static int adv76xx_registered(struct v4l2_subdev *sd) { struct adv76xx_state *state = to_state(sd); @@ -2701,9 +2741,16 @@ static int adv76xx_registered(struct v4l2_subdev *sd) int err; err = cec_register_adapter(state->cec_adap, &client->dev); - if (err) + if (err) { cec_delete_adapter(state->cec_adap); - return err; + return err; + } + state->debugfs_dir = debugfs_create_dir(sd->name, v4l2_debugfs_root()); + state->infoframes = v4l2_debugfs_if_alloc(state->debugfs_dir, + V4L2_DEBUGFS_IF_AVI | V4L2_DEBUGFS_IF_AUDIO | + V4L2_DEBUGFS_IF_SPD | V4L2_DEBUGFS_IF_HDMI, sd, + adv76xx_debugfs_if_read); + return 0; } static void adv76xx_unregistered(struct v4l2_subdev *sd) @@ -2711,6 +2758,10 @@ static void adv76xx_unregistered(struct v4l2_subdev *sd) struct adv76xx_state *state = to_state(sd); cec_unregister_adapter(state->cec_adap); + v4l2_debugfs_if_free(state->infoframes); + state->infoframes = NULL; + debugfs_remove_recursive(state->debugfs_dir); + state->debugfs_dir = NULL; } /* ----------------------------------------------------------------------- */ |