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path: root/drivers/media/i2c/adv7511.c
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Diffstat (limited to 'drivers/media/i2c/adv7511.c')
-rw-r--r--drivers/media/i2c/adv7511.c160
1 files changed, 142 insertions, 18 deletions
diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c
index 12d93203d405..95bcd4026451 100644
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511.c
@@ -77,7 +77,7 @@ struct adv7511_state_edid {
u32 blocks;
/* Number of segments read */
u32 segments;
- uint8_t data[EDID_MAX_SEGM * 256];
+ u8 data[EDID_MAX_SEGM * 256];
/* Number of EDID read retries left */
unsigned read_retries;
bool complete;
@@ -89,8 +89,9 @@ struct adv7511_state {
struct media_pad pad;
struct v4l2_ctrl_handler hdl;
int chip_revision;
- uint8_t i2c_edid_addr;
- uint8_t i2c_cec_addr;
+ u8 i2c_edid_addr;
+ u8 i2c_cec_addr;
+ u8 i2c_pktmem_addr;
/* Is the adv7511 powered on? */
bool power_on;
/* Did we receive hotplug and rx-sense signals? */
@@ -101,6 +102,7 @@ struct adv7511_state {
u32 colorspace;
u32 ycbcr_enc;
u32 quantization;
+ u32 xfer_func;
/* controls */
struct v4l2_ctrl *hdmi_mode_ctrl;
struct v4l2_ctrl *hotplug_ctrl;
@@ -108,6 +110,7 @@ struct adv7511_state {
struct v4l2_ctrl *have_edid0_ctrl;
struct v4l2_ctrl *rgb_quantization_range_ctrl;
struct i2c_client *i2c_edid;
+ struct i2c_client *i2c_pktmem;
struct adv7511_state_edid edid;
/* Running counter of the number of detected EDIDs (for debugging) */
unsigned edid_detect_counter;
@@ -200,7 +203,7 @@ static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
and then the value-mask (to be OR-ed). */
-static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, uint8_t clr_mask, uint8_t val_mask)
+static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
{
adv7511_wr(sd, reg, (adv7511_rd(sd, reg) & clr_mask) | val_mask);
}
@@ -222,7 +225,7 @@ static int adv_smbus_read_i2c_block_data(struct i2c_client *client,
return ret;
}
-static inline void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf)
+static inline void adv7511_edid_rd(struct v4l2_subdev *sd, u16 len, u8 *buf)
{
struct adv7511_state *state = get_adv7511_state(sd);
int i;
@@ -237,6 +240,35 @@ static inline void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t
v4l2_err(sd, "%s: i2c read error\n", __func__);
}
+static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg)
+{
+ struct adv7511_state *state = get_adv7511_state(sd);
+
+ return adv_smbus_read_byte_data(state->i2c_pktmem, reg);
+}
+
+static int adv7511_pktmem_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
+{
+ struct adv7511_state *state = get_adv7511_state(sd);
+ int ret;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ ret = i2c_smbus_write_byte_data(state->i2c_pktmem, reg, val);
+ if (ret == 0)
+ return 0;
+ }
+ v4l2_err(sd, "%s: i2c write error\n", __func__);
+ return ret;
+}
+
+/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
+ and then the value-mask (to be OR-ed). */
+static inline void adv7511_pktmem_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
+{
+ adv7511_pktmem_wr(sd, reg, (adv7511_pktmem_rd(sd, reg) & clr_mask) | val_mask);
+}
+
static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd)
{
return adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT;
@@ -247,7 +279,7 @@ static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd)
return adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT;
}
-static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, uint8_t mode)
+static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, u8 mode)
{
adv7511_wr_and_or(sd, 0x18, 0x9f, (mode & 0x3)<<5);
}
@@ -291,7 +323,7 @@ static void adv7511_csc_coeff(struct v4l2_subdev *sd,
static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable)
{
if (enable) {
- uint8_t csc_mode = 0;
+ u8 csc_mode = 0;
adv7511_csc_conversion_mode(sd, csc_mode);
adv7511_csc_coeff(sd,
4096-564, 0, 0, 256,
@@ -414,6 +446,80 @@ static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
}
#endif
+struct adv7511_cfg_read_infoframe {
+ const char *desc;
+ u8 present_reg;
+ u8 present_mask;
+ u8 header[3];
+ u16 payload_addr;
+};
+
+static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size)
+{
+ u8 csum = 0;
+ size_t i;
+
+ /* compute checksum */
+ for (i = 0; i < size; i++)
+ csum += ptr[i];
+
+ return 256 - csum;
+}
+
+static void log_infoframe(struct v4l2_subdev *sd, const struct adv7511_cfg_read_infoframe *cri)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ union hdmi_infoframe frame;
+ u8 buffer[32];
+ u8 len;
+ int i;
+
+ if (!(adv7511_rd(sd, cri->present_reg) & cri->present_mask)) {
+ v4l2_info(sd, "%s infoframe not transmitted\n", cri->desc);
+ return;
+ }
+
+ memcpy(buffer, cri->header, sizeof(cri->header));
+
+ len = buffer[2];
+
+ if (len + 4 > sizeof(buffer)) {
+ v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len);
+ return;
+ }
+
+ if (cri->payload_addr >= 0x100) {
+ for (i = 0; i < len; i++)
+ buffer[i + 4] = adv7511_pktmem_rd(sd, cri->payload_addr + i - 0x100);
+ } else {
+ for (i = 0; i < len; i++)
+ buffer[i + 4] = adv7511_rd(sd, cri->payload_addr + i);
+ }
+ buffer[3] = 0;
+ buffer[3] = hdmi_infoframe_checksum(buffer, len + 4);
+
+ if (hdmi_infoframe_unpack(&frame, buffer) < 0) {
+ v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc);
+ return;
+ }
+
+ hdmi_infoframe_log(KERN_INFO, dev, &frame);
+}
+
+static void adv7511_log_infoframes(struct v4l2_subdev *sd)
+{
+ static const struct adv7511_cfg_read_infoframe cri[] = {
+ { "AVI", 0x44, 0x10, { 0x82, 2, 13 }, 0x55 },
+ { "Audio", 0x44, 0x08, { 0x84, 1, 10 }, 0x73 },
+ { "SDP", 0x40, 0x40, { 0x83, 1, 25 }, 0x103 },
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cri); i++)
+ log_infoframe(sd, &cri[i]);
+}
+
static int adv7511_log_status(struct v4l2_subdev *sd)
{
struct adv7511_state *state = get_adv7511_state(sd);
@@ -479,6 +585,7 @@ static int adv7511_log_status(struct v4l2_subdev *sd)
manual_cts ? "manual" : "automatic", N, CTS);
v4l2_info(sd, "VIC: detected %d, sent %d\n",
vic_detect, vic_sent);
+ adv7511_log_infoframes(sd);
}
if (state->dv_timings.type == V4L2_DV_BT_656_1120)
v4l2_print_dv_timings(sd->name, "timings: ",
@@ -487,6 +594,7 @@ static int adv7511_log_status(struct v4l2_subdev *sd)
v4l2_info(sd, "no timings set\n");
v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
+ v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr);
return 0;
}
@@ -536,6 +644,7 @@ static int adv7511_s_power(struct v4l2_subdev *sd, int on)
adv7511_wr(sd, 0xf9, 0x00);
adv7511_wr(sd, 0x43, state->i2c_edid_addr);
+ adv7511_wr(sd, 0x45, state->i2c_pktmem_addr);
/* Set number of attempts to read the EDID */
adv7511_wr(sd, 0xc9, 0xf);
@@ -545,8 +654,8 @@ static int adv7511_s_power(struct v4l2_subdev *sd, int on)
/* Enable interrupts */
static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
{
- uint8_t irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
- uint8_t irqs_rd;
+ u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
+ u8 irqs_rd;
int retries = 100;
v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
@@ -579,7 +688,7 @@ static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
/* Interrupt handler */
static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
{
- uint8_t irq_status;
+ u8 irq_status;
/* disable interrupts to prevent a race condition */
adv7511_set_isr(sd, false);
@@ -861,11 +970,13 @@ static int adv7511_get_fmt(struct v4l2_subdev *sd,
format->format.colorspace = fmt->colorspace;
format->format.ycbcr_enc = fmt->ycbcr_enc;
format->format.quantization = fmt->quantization;
+ format->format.xfer_func = fmt->xfer_func;
} else {
format->format.code = state->fmt_code;
format->format.colorspace = state->colorspace;
format->format.ycbcr_enc = state->ycbcr_enc;
format->format.quantization = state->quantization;
+ format->format.xfer_func = state->xfer_func;
}
return 0;
@@ -912,6 +1023,7 @@ static int adv7511_set_fmt(struct v4l2_subdev *sd,
fmt->colorspace = format->format.colorspace;
fmt->ycbcr_enc = format->format.ycbcr_enc;
fmt->quantization = format->format.quantization;
+ fmt->xfer_func = format->format.xfer_func;
return 0;
}
@@ -936,6 +1048,7 @@ static int adv7511_set_fmt(struct v4l2_subdev *sd,
state->colorspace = format->format.colorspace;
state->ycbcr_enc = format->format.ycbcr_enc;
state->quantization = format->format.quantization;
+ state->xfer_func = format->format.xfer_func;
switch (format->format.colorspace) {
case V4L2_COLORSPACE_ADOBERGB:
@@ -1028,7 +1141,7 @@ static const struct v4l2_subdev_ops adv7511_ops = {
};
/* ----------------------------------------------------------------------- */
-static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, uint8_t *buf)
+static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, u8 *buf)
{
if (debug >= lvl) {
int i, j;
@@ -1140,7 +1253,7 @@ static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd)
{
struct adv7511_state *state = get_adv7511_state(sd);
/* read hotplug and rx-sense state */
- uint8_t status = adv7511_rd(sd, 0x42);
+ u8 status = adv7511_rd(sd, 0x42);
v4l2_dbg(1, debug, sd, "%s: status: 0x%x%s%s\n",
__func__,
@@ -1184,9 +1297,9 @@ static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd)
}
}
-static bool edid_block_verify_crc(uint8_t *edid_block)
+static bool edid_block_verify_crc(u8 *edid_block)
{
- uint8_t sum = 0;
+ u8 sum = 0;
int i;
for (i = 0; i < 128; i++)
@@ -1198,7 +1311,7 @@ static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment)
{
struct adv7511_state *state = get_adv7511_state(sd);
u32 blocks = state->edid.blocks;
- uint8_t *data = state->edid.data;
+ u8 *data = state->edid.data;
if (!edid_block_verify_crc(&data[segment * 256]))
return false;
@@ -1223,7 +1336,7 @@ static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment)
static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
{
struct adv7511_state *state = get_adv7511_state(sd);
- uint8_t edidRdy = adv7511_rd(sd, 0xc5);
+ u8 edidRdy = adv7511_rd(sd, 0xc5);
v4l2_dbg(1, debug, sd, "%s: edid ready (retries: %d)\n",
__func__, EDID_MAX_RETRIES - state->edid.read_retries);
@@ -1376,6 +1489,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
/* EDID and CEC i2c addr */
state->i2c_edid_addr = state->pdata.i2c_edid << 1;
state->i2c_cec_addr = state->pdata.i2c_cec << 1;
+ state->i2c_pktmem_addr = state->pdata.i2c_pktmem << 1;
state->chip_revision = adv7511_rd(sd, 0x0);
chip_id[0] = adv7511_rd(sd, 0xf5);
@@ -1393,12 +1507,19 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
goto err_entity;
}
+ state->i2c_pktmem = i2c_new_dummy(client->adapter, state->i2c_pktmem_addr >> 1);
+ if (state->i2c_pktmem == NULL) {
+ v4l2_err(sd, "failed to register pktmem i2c client\n");
+ err = -ENOMEM;
+ goto err_unreg_edid;
+ }
+
adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
state->work_queue = create_singlethread_workqueue(sd->name);
if (state->work_queue == NULL) {
v4l2_err(sd, "could not create workqueue\n");
err = -ENOMEM;
- goto err_unreg_cec;
+ goto err_unreg_pktmem;
}
INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
@@ -1411,7 +1532,9 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
client->addr << 1, client->adapter->name);
return 0;
-err_unreg_cec:
+err_unreg_pktmem:
+ i2c_unregister_device(state->i2c_pktmem);
+err_unreg_edid:
i2c_unregister_device(state->i2c_edid);
err_entity:
media_entity_cleanup(&sd->entity);
@@ -1435,6 +1558,7 @@ static int adv7511_remove(struct i2c_client *client)
adv7511_init_setup(sd);
cancel_delayed_work(&state->edid_handler);
i2c_unregister_device(state->i2c_edid);
+ i2c_unregister_device(state->i2c_pktmem);
destroy_workqueue(state->work_queue);
v4l2_device_unregister_subdev(sd);
media_entity_cleanup(&sd->entity);
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