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path: root/drivers/media/i2c/adv7842.c
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Diffstat (limited to 'drivers/media/i2c/adv7842.c')
-rw-r--r--drivers/media/i2c/adv7842.c184
1 files changed, 46 insertions, 138 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 75d26dfd0939..7c215ee142c4 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -38,6 +38,7 @@
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <linux/v4l2-dv-timings.h>
+#include <linux/hdmi.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-dv-timings.h>
@@ -220,21 +221,11 @@ static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd;
}
-static inline unsigned hblanking(const struct v4l2_bt_timings *t)
-{
- return V4L2_DV_BT_BLANKING_WIDTH(t);
-}
-
static inline unsigned htotal(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_FRAME_WIDTH(t);
}
-static inline unsigned vblanking(const struct v4l2_bt_timings *t)
-{
- return V4L2_DV_BT_BLANKING_HEIGHT(t);
-}
-
static inline unsigned vtotal(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_FRAME_HEIGHT(t);
@@ -2108,149 +2099,65 @@ static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e)
return err;
}
-/*********** avi info frame CEA-861-E **************/
-/* TODO move to common library */
-
-struct avi_info_frame {
- uint8_t f17;
- uint8_t y10;
- uint8_t a0;
- uint8_t b10;
- uint8_t s10;
- uint8_t c10;
- uint8_t m10;
- uint8_t r3210;
- uint8_t itc;
- uint8_t ec210;
- uint8_t q10;
- uint8_t sc10;
- uint8_t f47;
- uint8_t vic;
- uint8_t yq10;
- uint8_t cn10;
- uint8_t pr3210;
- uint16_t etb;
- uint16_t sbb;
- uint16_t elb;
- uint16_t srb;
-};
-
-static const char *y10_txt[4] = {
- "RGB",
- "YCbCr 4:2:2",
- "YCbCr 4:4:4",
- "Future",
-};
-
-static const char *c10_txt[4] = {
- "No Data",
- "SMPTE 170M",
- "ITU-R 709",
- "Extended Colorimetry information valied",
-};
-
-static const char *itc_txt[2] = {
- "No Data",
- "IT content",
-};
-
-static const char *ec210_txt[8] = {
- "xvYCC601",
- "xvYCC709",
- "sYCC601",
- "AdobeYCC601",
- "AdobeRGB",
- "5 reserved",
- "6 reserved",
- "7 reserved",
+struct adv7842_cfg_read_infoframe {
+ const char *desc;
+ u8 present_mask;
+ u8 head_addr;
+ u8 payload_addr;
};
-static const char *q10_txt[4] = {
- "Default",
- "Limited Range",
- "Full Range",
- "Reserved",
-};
-
-static void parse_avi_infoframe(struct v4l2_subdev *sd, uint8_t *buf,
- struct avi_info_frame *avi)
-{
- avi->f17 = (buf[1] >> 7) & 0x1;
- avi->y10 = (buf[1] >> 5) & 0x3;
- avi->a0 = (buf[1] >> 4) & 0x1;
- avi->b10 = (buf[1] >> 2) & 0x3;
- avi->s10 = buf[1] & 0x3;
- avi->c10 = (buf[2] >> 6) & 0x3;
- avi->m10 = (buf[2] >> 4) & 0x3;
- avi->r3210 = buf[2] & 0xf;
- avi->itc = (buf[3] >> 7) & 0x1;
- avi->ec210 = (buf[3] >> 4) & 0x7;
- avi->q10 = (buf[3] >> 2) & 0x3;
- avi->sc10 = buf[3] & 0x3;
- avi->f47 = (buf[4] >> 7) & 0x1;
- avi->vic = buf[4] & 0x7f;
- avi->yq10 = (buf[5] >> 6) & 0x3;
- avi->cn10 = (buf[5] >> 4) & 0x3;
- avi->pr3210 = buf[5] & 0xf;
- avi->etb = buf[6] + 256*buf[7];
- avi->sbb = buf[8] + 256*buf[9];
- avi->elb = buf[10] + 256*buf[11];
- avi->srb = buf[12] + 256*buf[13];
-}
-
-static void print_avi_infoframe(struct v4l2_subdev *sd)
+static void log_infoframe(struct v4l2_subdev *sd, struct adv7842_cfg_read_infoframe *cri)
{
int i;
- uint8_t buf[14];
- u8 avi_len;
- u8 avi_ver;
- struct avi_info_frame avi;
+ uint8_t buffer[32];
+ union hdmi_infoframe frame;
+ u8 len;
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
- if (!(hdmi_read(sd, 0x05) & 0x80)) {
- v4l2_info(sd, "receive DVI-D signal (AVI infoframe not supported)\n");
- return;
- }
- if (!(io_read(sd, 0x60) & 0x01)) {
- v4l2_info(sd, "AVI infoframe not received\n");
+ if (!(io_read(sd, 0x60) & cri->present_mask)) {
+ v4l2_info(sd, "%s infoframe not received\n", cri->desc);
return;
}
- if (io_read(sd, 0x88) & 0x10) {
- v4l2_info(sd, "AVI infoframe checksum error has occurred earlier\n");
- io_write(sd, 0x8a, 0x10); /* clear AVI_INF_CKS_ERR_RAW */
- if (io_read(sd, 0x88) & 0x10) {
- v4l2_info(sd, "AVI infoframe checksum error still present\n");
- io_write(sd, 0x8a, 0x10); /* clear AVI_INF_CKS_ERR_RAW */
- }
- }
+ for (i = 0; i < 3; i++)
+ buffer[i] = infoframe_read(sd, cri->head_addr + i);
- avi_len = infoframe_read(sd, 0xe2);
- avi_ver = infoframe_read(sd, 0xe1);
- v4l2_info(sd, "AVI infoframe version %d (%d byte)\n",
- avi_ver, avi_len);
+ len = buffer[2] + 1;
- if (avi_ver != 0x02)
+ if (len + 3 > sizeof(buffer)) {
+ v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len);
return;
+ }
+
+ for (i = 0; i < len; i++)
+ buffer[i + 3] = infoframe_read(sd, cri->payload_addr + i);
- for (i = 0; i < 14; i++)
- buf[i] = infoframe_read(sd, i);
+ if (hdmi_infoframe_unpack(&frame, buffer) < 0) {
+ v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc);
+ return;
+ }
- v4l2_info(sd, "\t%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
- buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
+ hdmi_infoframe_log(KERN_INFO, dev, &frame);
+}
- parse_avi_infoframe(sd, buf, &avi);
+static void adv7842_log_infoframes(struct v4l2_subdev *sd)
+{
+ int i;
+ struct adv7842_cfg_read_infoframe cri[] = {
+ { "AVI", 0x01, 0xe0, 0x00 },
+ { "Audio", 0x02, 0xe3, 0x1c },
+ { "SDP", 0x04, 0xe6, 0x2a },
+ { "Vendor", 0x10, 0xec, 0x54 }
+ };
- if (avi.vic)
- v4l2_info(sd, "\tVIC: %d\n", avi.vic);
- if (avi.itc)
- v4l2_info(sd, "\t%s\n", itc_txt[avi.itc]);
+ if (!(hdmi_read(sd, 0x05) & 0x80)) {
+ v4l2_info(sd, "receive DVI-D signal, no infoframes\n");
+ return;
+ }
- if (avi.y10)
- v4l2_info(sd, "\t%s %s\n", y10_txt[avi.y10], !avi.c10 ? "" :
- (avi.c10 == 0x3 ? ec210_txt[avi.ec210] : c10_txt[avi.c10]));
- else
- v4l2_info(sd, "\t%s %s\n", y10_txt[avi.y10], q10_txt[avi.q10]);
+ for (i = 0; i < ARRAY_SIZE(cri); i++)
+ log_infoframe(sd, &cri[i]);
}
static const char * const prim_mode_txt[] = {
@@ -2464,7 +2371,8 @@ static int adv7842_cp_log_status(struct v4l2_subdev *sd)
v4l2_info(sd, "Deep color mode: %s\n",
deep_color_mode_txt[hdmi_read(sd, 0x0b) >> 6]);
- print_avi_infoframe(sd);
+ adv7842_log_infoframes(sd);
+
return 0;
}
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