diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/media/i2c/adv7511.c | 123 | ||||
| -rw-r--r-- | drivers/media/pci/cobalt/cobalt-driver.c | 1 |
3 files changed, 123 insertions, 2 deletions
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 36f5563ca9cd..c92180d4036e 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -424,6 +424,7 @@ config VIDEO_ADV7393 config VIDEO_ADV7511 tristate "Analog Devices ADV7511 encoder" depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API + select HDMI ---help--- Support for the Analog Devices ADV7511 video encoder. diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c index d9bb90b383fb..95bcd4026451 100644 --- a/drivers/media/i2c/adv7511.c +++ b/drivers/media/i2c/adv7511.c @@ -91,6 +91,7 @@ struct adv7511_state { int chip_revision; 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? */ @@ -109,6 +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; @@ -238,6 +240,35 @@ static inline void adv7511_edid_rd(struct v4l2_subdev *sd, u16 len, u8 *buf) 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; @@ -415,6 +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); @@ -480,6 +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: ", @@ -488,6 +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; } @@ -537,6 +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); @@ -1381,6 +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); @@ -1398,12 +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); @@ -1416,7 +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); @@ -1440,6 +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); diff --git a/drivers/media/pci/cobalt/cobalt-driver.c b/drivers/media/pci/cobalt/cobalt-driver.c index c2974e699ecf..b994b8efdc99 100644 --- a/drivers/media/pci/cobalt/cobalt-driver.c +++ b/drivers/media/pci/cobalt/cobalt-driver.c @@ -602,6 +602,7 @@ static int cobalt_subdevs_hsma_init(struct cobalt *cobalt) static struct adv7511_platform_data adv7511_pdata = { .i2c_edid = 0x7e >> 1, .i2c_cec = 0x7c >> 1, + .i2c_pktmem = 0x70 >> 1, .cec_clk = 12000000, }; static struct i2c_board_info adv7511_info = { |