[media] cec: adv7511: add cec support
Add CEC support to the adv7511 driver. Signed-off-by: Hans Verkuil <hansverk@cisco.com> [k.debski@samsung.com: Merged changes from CEC Updates commit by Hans Verkuil] Signed-off-by: Kamil Debski <kamil@wypas.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
parent
25c84fb1c9
commit
257d4eaed3
|
@ -463,6 +463,7 @@ config VIDEO_ADV7511
|
||||||
tristate "Analog Devices ADV7511 encoder"
|
tristate "Analog Devices ADV7511 encoder"
|
||||||
depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
|
depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
|
||||||
select HDMI
|
select HDMI
|
||||||
|
select MEDIA_CEC_EDID
|
||||||
---help---
|
---help---
|
||||||
Support for the Analog Devices ADV7511 video encoder.
|
Support for the Analog Devices ADV7511 video encoder.
|
||||||
|
|
||||||
|
@ -471,6 +472,13 @@ config VIDEO_ADV7511
|
||||||
To compile this driver as a module, choose M here: the
|
To compile this driver as a module, choose M here: the
|
||||||
module will be called adv7511.
|
module will be called adv7511.
|
||||||
|
|
||||||
|
config VIDEO_ADV7511_CEC
|
||||||
|
bool "Enable Analog Devices ADV7511 CEC support"
|
||||||
|
depends on VIDEO_ADV7511 && MEDIA_CEC
|
||||||
|
---help---
|
||||||
|
When selected the adv7511 will support the optional
|
||||||
|
HDMI CEC feature.
|
||||||
|
|
||||||
config VIDEO_AD9389B
|
config VIDEO_AD9389B
|
||||||
tristate "Analog Devices AD9389B encoder"
|
tristate "Analog Devices AD9389B encoder"
|
||||||
depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
|
depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
|
||||||
|
|
|
@ -33,6 +33,7 @@
|
||||||
#include <media/v4l2-ctrls.h>
|
#include <media/v4l2-ctrls.h>
|
||||||
#include <media/v4l2-dv-timings.h>
|
#include <media/v4l2-dv-timings.h>
|
||||||
#include <media/i2c/adv7511.h>
|
#include <media/i2c/adv7511.h>
|
||||||
|
#include <media/cec.h>
|
||||||
|
|
||||||
static int debug;
|
static int debug;
|
||||||
module_param(debug, int, 0644);
|
module_param(debug, int, 0644);
|
||||||
|
@ -59,6 +60,8 @@ MODULE_LICENSE("GPL v2");
|
||||||
#define ADV7511_MIN_PIXELCLOCK 20000000
|
#define ADV7511_MIN_PIXELCLOCK 20000000
|
||||||
#define ADV7511_MAX_PIXELCLOCK 225000000
|
#define ADV7511_MAX_PIXELCLOCK 225000000
|
||||||
|
|
||||||
|
#define ADV7511_MAX_ADDRS (3)
|
||||||
|
|
||||||
/*
|
/*
|
||||||
**********************************************************************
|
**********************************************************************
|
||||||
*
|
*
|
||||||
|
@ -90,12 +93,20 @@ struct adv7511_state {
|
||||||
struct v4l2_ctrl_handler hdl;
|
struct v4l2_ctrl_handler hdl;
|
||||||
int chip_revision;
|
int chip_revision;
|
||||||
u8 i2c_edid_addr;
|
u8 i2c_edid_addr;
|
||||||
u8 i2c_cec_addr;
|
|
||||||
u8 i2c_pktmem_addr;
|
u8 i2c_pktmem_addr;
|
||||||
|
u8 i2c_cec_addr;
|
||||||
|
|
||||||
|
struct i2c_client *i2c_cec;
|
||||||
|
struct cec_adapter *cec_adap;
|
||||||
|
u8 cec_addr[ADV7511_MAX_ADDRS];
|
||||||
|
u8 cec_valid_addrs;
|
||||||
|
bool cec_enabled_adap;
|
||||||
|
|
||||||
/* Is the adv7511 powered on? */
|
/* Is the adv7511 powered on? */
|
||||||
bool power_on;
|
bool power_on;
|
||||||
/* Did we receive hotplug and rx-sense signals? */
|
/* Did we receive hotplug and rx-sense signals? */
|
||||||
bool have_monitor;
|
bool have_monitor;
|
||||||
|
bool enabled_irq;
|
||||||
/* timings from s_dv_timings */
|
/* timings from s_dv_timings */
|
||||||
struct v4l2_dv_timings dv_timings;
|
struct v4l2_dv_timings dv_timings;
|
||||||
u32 fmt_code;
|
u32 fmt_code;
|
||||||
|
@ -227,7 +238,7 @@ static int adv_smbus_read_i2c_block_data(struct i2c_client *client,
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void adv7511_edid_rd(struct v4l2_subdev *sd, u16 len, u8 *buf)
|
static void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf)
|
||||||
{
|
{
|
||||||
struct adv7511_state *state = get_adv7511_state(sd);
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
int i;
|
int i;
|
||||||
|
@ -242,6 +253,34 @@ static inline void adv7511_edid_rd(struct v4l2_subdev *sd, u16 len, u8 *buf)
|
||||||
v4l2_err(sd, "%s: i2c read error\n", __func__);
|
v4l2_err(sd, "%s: i2c read error\n", __func__);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static inline int adv7511_cec_read(struct v4l2_subdev *sd, u8 reg)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
|
return i2c_smbus_read_byte_data(state->i2c_cec, reg);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int adv7511_cec_write(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_cec, reg, val);
|
||||||
|
if (ret == 0)
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
v4l2_err(sd, "%s: I2C Write Problem\n", __func__);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline int adv7511_cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask,
|
||||||
|
u8 val)
|
||||||
|
{
|
||||||
|
return adv7511_cec_write(sd, reg, (adv7511_cec_read(sd, reg) & mask) | val);
|
||||||
|
}
|
||||||
|
|
||||||
static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg)
|
static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg)
|
||||||
{
|
{
|
||||||
struct adv7511_state *state = get_adv7511_state(sd);
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
@ -425,16 +464,28 @@ static const struct v4l2_ctrl_ops adv7511_ctrl_ops = {
|
||||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||||
static void adv7511_inv_register(struct v4l2_subdev *sd)
|
static void adv7511_inv_register(struct v4l2_subdev *sd)
|
||||||
{
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
v4l2_info(sd, "0x000-0x0ff: Main Map\n");
|
v4l2_info(sd, "0x000-0x0ff: Main Map\n");
|
||||||
|
if (state->i2c_cec)
|
||||||
|
v4l2_info(sd, "0x100-0x1ff: CEC Map\n");
|
||||||
}
|
}
|
||||||
|
|
||||||
static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
|
static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
|
||||||
{
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
reg->size = 1;
|
reg->size = 1;
|
||||||
switch (reg->reg >> 8) {
|
switch (reg->reg >> 8) {
|
||||||
case 0:
|
case 0:
|
||||||
reg->val = adv7511_rd(sd, reg->reg & 0xff);
|
reg->val = adv7511_rd(sd, reg->reg & 0xff);
|
||||||
break;
|
break;
|
||||||
|
case 1:
|
||||||
|
if (state->i2c_cec) {
|
||||||
|
reg->val = adv7511_cec_read(sd, reg->reg & 0xff);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
/* fall through */
|
||||||
default:
|
default:
|
||||||
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
|
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
|
||||||
adv7511_inv_register(sd);
|
adv7511_inv_register(sd);
|
||||||
|
@ -445,10 +496,18 @@ static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
|
||||||
|
|
||||||
static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
|
static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
|
||||||
{
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
switch (reg->reg >> 8) {
|
switch (reg->reg >> 8) {
|
||||||
case 0:
|
case 0:
|
||||||
adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff);
|
adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff);
|
||||||
break;
|
break;
|
||||||
|
case 1:
|
||||||
|
if (state->i2c_cec) {
|
||||||
|
adv7511_cec_write(sd, reg->reg & 0xff, reg->val & 0xff);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
/* fall through */
|
||||||
default:
|
default:
|
||||||
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
|
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
|
||||||
adv7511_inv_register(sd);
|
adv7511_inv_register(sd);
|
||||||
|
@ -536,6 +595,7 @@ static int adv7511_log_status(struct v4l2_subdev *sd)
|
||||||
{
|
{
|
||||||
struct adv7511_state *state = get_adv7511_state(sd);
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
struct adv7511_state_edid *edid = &state->edid;
|
struct adv7511_state_edid *edid = &state->edid;
|
||||||
|
int i;
|
||||||
|
|
||||||
static const char * const states[] = {
|
static const char * const states[] = {
|
||||||
"in reset",
|
"in reset",
|
||||||
|
@ -605,7 +665,23 @@ static int adv7511_log_status(struct v4l2_subdev *sd)
|
||||||
else
|
else
|
||||||
v4l2_info(sd, "no timings set\n");
|
v4l2_info(sd, "no timings set\n");
|
||||||
v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
|
v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
|
||||||
|
|
||||||
|
if (state->i2c_cec == NULL)
|
||||||
|
return 0;
|
||||||
|
|
||||||
v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
|
v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
|
||||||
|
|
||||||
|
v4l2_info(sd, "CEC: %s\n", state->cec_enabled_adap ?
|
||||||
|
"enabled" : "disabled");
|
||||||
|
if (state->cec_enabled_adap) {
|
||||||
|
for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
|
||||||
|
bool is_valid = state->cec_valid_addrs & (1 << i);
|
||||||
|
|
||||||
|
if (is_valid)
|
||||||
|
v4l2_info(sd, "CEC Logical Address: 0x%x\n",
|
||||||
|
state->cec_addr[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr);
|
v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -663,15 +739,197 @@ static int adv7511_s_power(struct v4l2_subdev *sd, int on)
|
||||||
return true;
|
return true;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
|
||||||
|
static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = adap->priv;
|
||||||
|
struct v4l2_subdev *sd = &state->sd;
|
||||||
|
|
||||||
|
if (state->i2c_cec == NULL)
|
||||||
|
return -EIO;
|
||||||
|
|
||||||
|
if (!state->cec_enabled_adap && enable) {
|
||||||
|
/* power up cec section */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x01);
|
||||||
|
/* legacy mode and clear all rx buffers */
|
||||||
|
adv7511_cec_write(sd, 0x4a, 0x07);
|
||||||
|
adv7511_cec_write(sd, 0x4a, 0);
|
||||||
|
adv7511_cec_write_and_or(sd, 0x11, 0xfe, 0); /* initially disable tx */
|
||||||
|
/* enabled irqs: */
|
||||||
|
/* tx: ready */
|
||||||
|
/* tx: arbitration lost */
|
||||||
|
/* tx: retry timeout */
|
||||||
|
/* rx: ready 1 */
|
||||||
|
if (state->enabled_irq)
|
||||||
|
adv7511_wr_and_or(sd, 0x95, 0xc0, 0x39);
|
||||||
|
} else if (state->cec_enabled_adap && !enable) {
|
||||||
|
if (state->enabled_irq)
|
||||||
|
adv7511_wr_and_or(sd, 0x95, 0xc0, 0x00);
|
||||||
|
/* disable address mask 1-3 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0x00);
|
||||||
|
/* power down cec section */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x00);
|
||||||
|
state->cec_valid_addrs = 0;
|
||||||
|
}
|
||||||
|
state->cec_enabled_adap = enable;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = adap->priv;
|
||||||
|
struct v4l2_subdev *sd = &state->sd;
|
||||||
|
unsigned int i, free_idx = ADV7511_MAX_ADDRS;
|
||||||
|
|
||||||
|
if (!state->cec_enabled_adap)
|
||||||
|
return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO;
|
||||||
|
|
||||||
|
if (addr == CEC_LOG_ADDR_INVALID) {
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0);
|
||||||
|
state->cec_valid_addrs = 0;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
|
||||||
|
bool is_valid = state->cec_valid_addrs & (1 << i);
|
||||||
|
|
||||||
|
if (free_idx == ADV7511_MAX_ADDRS && !is_valid)
|
||||||
|
free_idx = i;
|
||||||
|
if (is_valid && state->cec_addr[i] == addr)
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (i == ADV7511_MAX_ADDRS) {
|
||||||
|
i = free_idx;
|
||||||
|
if (i == ADV7511_MAX_ADDRS)
|
||||||
|
return -ENXIO;
|
||||||
|
}
|
||||||
|
state->cec_addr[i] = addr;
|
||||||
|
state->cec_valid_addrs |= 1 << i;
|
||||||
|
|
||||||
|
switch (i) {
|
||||||
|
case 0:
|
||||||
|
/* enable address mask 0 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4b, 0xef, 0x10);
|
||||||
|
/* set address for mask 0 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4c, 0xf0, addr);
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
/* enable address mask 1 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4b, 0xdf, 0x20);
|
||||||
|
/* set address for mask 1 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4c, 0x0f, addr << 4);
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
/* enable address mask 2 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4b, 0xbf, 0x40);
|
||||||
|
/* set address for mask 1 */
|
||||||
|
adv7511_cec_write_and_or(sd, 0x4d, 0xf0, addr);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
|
||||||
|
u32 signal_free_time, struct cec_msg *msg)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = adap->priv;
|
||||||
|
struct v4l2_subdev *sd = &state->sd;
|
||||||
|
u8 len = msg->len;
|
||||||
|
unsigned int i;
|
||||||
|
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: len %d\n", __func__, len);
|
||||||
|
|
||||||
|
if (len > 16) {
|
||||||
|
v4l2_err(sd, "%s: len exceeded 16 (%d)\n", __func__, len);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The number of retries is the number of attempts - 1, but retry
|
||||||
|
* at least once. It's not clear if a value of 0 is allowed, so
|
||||||
|
* let's do at least one retry.
|
||||||
|
*/
|
||||||
|
adv7511_cec_write_and_or(sd, 0x12, ~0x70, max(1, attempts - 1) << 4);
|
||||||
|
|
||||||
|
/* blocking, clear cec tx irq status */
|
||||||
|
adv7511_wr_and_or(sd, 0x97, 0xc7, 0x38);
|
||||||
|
|
||||||
|
/* write data */
|
||||||
|
for (i = 0; i < len; i++)
|
||||||
|
adv7511_cec_write(sd, i, msg->msg[i]);
|
||||||
|
|
||||||
|
/* set length (data + header) */
|
||||||
|
adv7511_cec_write(sd, 0x10, len);
|
||||||
|
/* start transmit, enable tx */
|
||||||
|
adv7511_cec_write(sd, 0x11, 0x01);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void adv_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
|
if ((adv7511_cec_read(sd, 0x11) & 0x01) == 0) {
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: tx raw: tx disabled\n", __func__);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (tx_raw_status & 0x10) {
|
||||||
|
v4l2_dbg(1, debug, sd,
|
||||||
|
"%s: tx raw: arbitration lost\n", __func__);
|
||||||
|
cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST,
|
||||||
|
1, 0, 0, 0);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (tx_raw_status & 0x08) {
|
||||||
|
u8 status;
|
||||||
|
u8 nack_cnt;
|
||||||
|
u8 low_drive_cnt;
|
||||||
|
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: tx raw: retry failed\n", __func__);
|
||||||
|
/*
|
||||||
|
* We set this status bit since this hardware performs
|
||||||
|
* retransmissions.
|
||||||
|
*/
|
||||||
|
status = CEC_TX_STATUS_MAX_RETRIES;
|
||||||
|
nack_cnt = adv7511_cec_read(sd, 0x14) & 0xf;
|
||||||
|
if (nack_cnt)
|
||||||
|
status |= CEC_TX_STATUS_NACK;
|
||||||
|
low_drive_cnt = adv7511_cec_read(sd, 0x14) >> 4;
|
||||||
|
if (low_drive_cnt)
|
||||||
|
status |= CEC_TX_STATUS_LOW_DRIVE;
|
||||||
|
cec_transmit_done(state->cec_adap, status,
|
||||||
|
0, nack_cnt, low_drive_cnt, 0);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (tx_raw_status & 0x20) {
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: tx raw: ready ok\n", __func__);
|
||||||
|
cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct cec_adap_ops adv7511_cec_adap_ops = {
|
||||||
|
.adap_enable = adv7511_cec_adap_enable,
|
||||||
|
.adap_log_addr = adv7511_cec_adap_log_addr,
|
||||||
|
.adap_transmit = adv7511_cec_adap_transmit,
|
||||||
|
};
|
||||||
|
#endif
|
||||||
|
|
||||||
/* Enable interrupts */
|
/* Enable interrupts */
|
||||||
static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
|
static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
|
||||||
{
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
|
u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
|
||||||
u8 irqs_rd;
|
u8 irqs_rd;
|
||||||
int retries = 100;
|
int retries = 100;
|
||||||
|
|
||||||
v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
|
v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
|
||||||
|
|
||||||
|
if (state->enabled_irq == enable)
|
||||||
|
return;
|
||||||
|
state->enabled_irq = enable;
|
||||||
|
|
||||||
/* The datasheet says that the EDID ready interrupt should be
|
/* The datasheet says that the EDID ready interrupt should be
|
||||||
disabled if there is no hotplug. */
|
disabled if there is no hotplug. */
|
||||||
if (!enable)
|
if (!enable)
|
||||||
|
@ -679,6 +937,9 @@ static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
|
||||||
else if (adv7511_have_hotplug(sd))
|
else if (adv7511_have_hotplug(sd))
|
||||||
irqs |= MASK_ADV7511_EDID_RDY_INT;
|
irqs |= MASK_ADV7511_EDID_RDY_INT;
|
||||||
|
|
||||||
|
adv7511_wr_and_or(sd, 0x95, 0xc0,
|
||||||
|
(state->cec_enabled_adap && enable) ? 0x39 : 0x00);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This i2c write can fail (approx. 1 in 1000 writes). But it
|
* This i2c write can fail (approx. 1 in 1000 writes). But it
|
||||||
* is essential that this register is correct, so retry it
|
* is essential that this register is correct, so retry it
|
||||||
|
@ -701,20 +962,53 @@ static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
|
||||||
static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
|
static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
|
||||||
{
|
{
|
||||||
u8 irq_status;
|
u8 irq_status;
|
||||||
|
u8 cec_irq;
|
||||||
|
|
||||||
/* disable interrupts to prevent a race condition */
|
/* disable interrupts to prevent a race condition */
|
||||||
adv7511_set_isr(sd, false);
|
adv7511_set_isr(sd, false);
|
||||||
irq_status = adv7511_rd(sd, 0x96);
|
irq_status = adv7511_rd(sd, 0x96);
|
||||||
|
cec_irq = adv7511_rd(sd, 0x97);
|
||||||
/* clear detected interrupts */
|
/* clear detected interrupts */
|
||||||
adv7511_wr(sd, 0x96, irq_status);
|
adv7511_wr(sd, 0x96, irq_status);
|
||||||
|
adv7511_wr(sd, 0x97, cec_irq);
|
||||||
|
|
||||||
v4l2_dbg(1, debug, sd, "%s: irq 0x%x\n", __func__, irq_status);
|
v4l2_dbg(1, debug, sd, "%s: irq 0x%x, cec-irq 0x%x\n", __func__,
|
||||||
|
irq_status, cec_irq);
|
||||||
|
|
||||||
if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT))
|
if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT))
|
||||||
adv7511_check_monitor_present_status(sd);
|
adv7511_check_monitor_present_status(sd);
|
||||||
if (irq_status & MASK_ADV7511_EDID_RDY_INT)
|
if (irq_status & MASK_ADV7511_EDID_RDY_INT)
|
||||||
adv7511_check_edid_status(sd);
|
adv7511_check_edid_status(sd);
|
||||||
|
|
||||||
|
#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
|
||||||
|
if (cec_irq & 0x38)
|
||||||
|
adv_cec_tx_raw_status(sd, cec_irq);
|
||||||
|
|
||||||
|
if (cec_irq & 1) {
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
struct cec_msg msg;
|
||||||
|
|
||||||
|
msg.len = adv7511_cec_read(sd, 0x25) & 0x1f;
|
||||||
|
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: cec msg len %d\n", __func__,
|
||||||
|
msg.len);
|
||||||
|
|
||||||
|
if (msg.len > 16)
|
||||||
|
msg.len = 16;
|
||||||
|
|
||||||
|
if (msg.len) {
|
||||||
|
u8 i;
|
||||||
|
|
||||||
|
for (i = 0; i < msg.len; i++)
|
||||||
|
msg.msg[i] = adv7511_cec_read(sd, i + 0x15);
|
||||||
|
|
||||||
|
adv7511_cec_write(sd, 0x4a, 1); /* toggle to re-enable rx 1 */
|
||||||
|
adv7511_cec_write(sd, 0x4a, 0);
|
||||||
|
cec_received_msg(state->cec_adap, &msg);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
/* enable interrupts */
|
/* enable interrupts */
|
||||||
adv7511_set_isr(sd, true);
|
adv7511_set_isr(sd, true);
|
||||||
|
|
||||||
|
@ -1183,6 +1477,8 @@ static void adv7511_notify_no_edid(struct v4l2_subdev *sd)
|
||||||
/* We failed to read the EDID, so send an event for this. */
|
/* We failed to read the EDID, so send an event for this. */
|
||||||
ed.present = false;
|
ed.present = false;
|
||||||
ed.segment = adv7511_rd(sd, 0xc4);
|
ed.segment = adv7511_rd(sd, 0xc4);
|
||||||
|
ed.phys_addr = CEC_PHYS_ADDR_INVALID;
|
||||||
|
cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
|
||||||
v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
|
v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
|
||||||
v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0);
|
v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0);
|
||||||
}
|
}
|
||||||
|
@ -1406,13 +1702,16 @@ static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
|
||||||
|
|
||||||
v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments);
|
v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments);
|
||||||
state->edid.complete = true;
|
state->edid.complete = true;
|
||||||
|
ed.phys_addr = cec_get_edid_phys_addr(state->edid.data,
|
||||||
|
state->edid.segments * 256,
|
||||||
|
NULL);
|
||||||
/* report when we have all segments
|
/* report when we have all segments
|
||||||
but report only for segment 0
|
but report only for segment 0
|
||||||
*/
|
*/
|
||||||
ed.present = true;
|
ed.present = true;
|
||||||
ed.segment = 0;
|
ed.segment = 0;
|
||||||
state->edid_detect_counter++;
|
state->edid_detect_counter++;
|
||||||
|
cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
|
||||||
v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
|
v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
|
||||||
return ed.present;
|
return ed.present;
|
||||||
}
|
}
|
||||||
|
@ -1420,17 +1719,43 @@ static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int adv7511_registered(struct v4l2_subdev *sd)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
int err;
|
||||||
|
|
||||||
|
err = cec_register_adapter(state->cec_adap);
|
||||||
|
if (err)
|
||||||
|
cec_delete_adapter(state->cec_adap);
|
||||||
|
return err;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void adv7511_unregistered(struct v4l2_subdev *sd)
|
||||||
|
{
|
||||||
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
|
|
||||||
|
cec_unregister_adapter(state->cec_adap);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct v4l2_subdev_internal_ops adv7511_int_ops = {
|
||||||
|
.registered = adv7511_registered,
|
||||||
|
.unregistered = adv7511_unregistered,
|
||||||
|
};
|
||||||
|
|
||||||
/* ----------------------------------------------------------------------- */
|
/* ----------------------------------------------------------------------- */
|
||||||
/* Setup ADV7511 */
|
/* Setup ADV7511 */
|
||||||
static void adv7511_init_setup(struct v4l2_subdev *sd)
|
static void adv7511_init_setup(struct v4l2_subdev *sd)
|
||||||
{
|
{
|
||||||
struct adv7511_state *state = get_adv7511_state(sd);
|
struct adv7511_state *state = get_adv7511_state(sd);
|
||||||
struct adv7511_state_edid *edid = &state->edid;
|
struct adv7511_state_edid *edid = &state->edid;
|
||||||
|
u32 cec_clk = state->pdata.cec_clk;
|
||||||
|
u8 ratio;
|
||||||
|
|
||||||
v4l2_dbg(1, debug, sd, "%s\n", __func__);
|
v4l2_dbg(1, debug, sd, "%s\n", __func__);
|
||||||
|
|
||||||
/* clear all interrupts */
|
/* clear all interrupts */
|
||||||
adv7511_wr(sd, 0x96, 0xff);
|
adv7511_wr(sd, 0x96, 0xff);
|
||||||
|
adv7511_wr(sd, 0x97, 0xff);
|
||||||
/*
|
/*
|
||||||
* Stop HPD from resetting a lot of registers.
|
* Stop HPD from resetting a lot of registers.
|
||||||
* It might leave the chip in a partly un-initialized state,
|
* It might leave the chip in a partly un-initialized state,
|
||||||
|
@ -1442,6 +1767,25 @@ static void adv7511_init_setup(struct v4l2_subdev *sd)
|
||||||
adv7511_set_isr(sd, false);
|
adv7511_set_isr(sd, false);
|
||||||
adv7511_s_stream(sd, false);
|
adv7511_s_stream(sd, false);
|
||||||
adv7511_s_audio_stream(sd, false);
|
adv7511_s_audio_stream(sd, false);
|
||||||
|
|
||||||
|
if (state->i2c_cec == NULL)
|
||||||
|
return;
|
||||||
|
|
||||||
|
v4l2_dbg(1, debug, sd, "%s: cec_clk %d\n", __func__, cec_clk);
|
||||||
|
|
||||||
|
/* cec soft reset */
|
||||||
|
adv7511_cec_write(sd, 0x50, 0x01);
|
||||||
|
adv7511_cec_write(sd, 0x50, 0x00);
|
||||||
|
|
||||||
|
/* legacy mode */
|
||||||
|
adv7511_cec_write(sd, 0x4a, 0x00);
|
||||||
|
|
||||||
|
if (cec_clk % 750000 != 0)
|
||||||
|
v4l2_err(sd, "%s: cec_clk %d, not multiple of 750 Khz\n",
|
||||||
|
__func__, cec_clk);
|
||||||
|
|
||||||
|
ratio = (cec_clk / 750000) - 1;
|
||||||
|
adv7511_cec_write(sd, 0x4e, ratio << 2);
|
||||||
}
|
}
|
||||||
|
|
||||||
static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||||
|
@ -1476,6 +1820,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
|
||||||
client->addr << 1);
|
client->addr << 1);
|
||||||
|
|
||||||
v4l2_i2c_subdev_init(sd, client, &adv7511_ops);
|
v4l2_i2c_subdev_init(sd, client, &adv7511_ops);
|
||||||
|
sd->internal_ops = &adv7511_int_ops;
|
||||||
|
|
||||||
hdl = &state->hdl;
|
hdl = &state->hdl;
|
||||||
v4l2_ctrl_handler_init(hdl, 10);
|
v4l2_ctrl_handler_init(hdl, 10);
|
||||||
|
@ -1516,26 +1861,47 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
|
||||||
chip_id[0] = adv7511_rd(sd, 0xf5);
|
chip_id[0] = adv7511_rd(sd, 0xf5);
|
||||||
chip_id[1] = adv7511_rd(sd, 0xf6);
|
chip_id[1] = adv7511_rd(sd, 0xf6);
|
||||||
if (chip_id[0] != 0x75 || chip_id[1] != 0x11) {
|
if (chip_id[0] != 0x75 || chip_id[1] != 0x11) {
|
||||||
v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0], chip_id[1]);
|
v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0],
|
||||||
|
chip_id[1]);
|
||||||
err = -EIO;
|
err = -EIO;
|
||||||
goto err_entity;
|
goto err_entity;
|
||||||
}
|
}
|
||||||
|
|
||||||
state->i2c_edid = i2c_new_dummy(client->adapter, state->i2c_edid_addr >> 1);
|
state->i2c_edid = i2c_new_dummy(client->adapter,
|
||||||
|
state->i2c_edid_addr >> 1);
|
||||||
if (state->i2c_edid == NULL) {
|
if (state->i2c_edid == NULL) {
|
||||||
v4l2_err(sd, "failed to register edid i2c client\n");
|
v4l2_err(sd, "failed to register edid i2c client\n");
|
||||||
err = -ENOMEM;
|
err = -ENOMEM;
|
||||||
goto err_entity;
|
goto err_entity;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
adv7511_wr(sd, 0xe1, state->i2c_cec_addr);
|
||||||
|
if (state->pdata.cec_clk < 3000000 ||
|
||||||
|
state->pdata.cec_clk > 100000000) {
|
||||||
|
v4l2_err(sd, "%s: cec_clk %u outside range, disabling cec\n",
|
||||||
|
__func__, state->pdata.cec_clk);
|
||||||
|
state->pdata.cec_clk = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (state->pdata.cec_clk) {
|
||||||
|
state->i2c_cec = i2c_new_dummy(client->adapter,
|
||||||
|
state->i2c_cec_addr >> 1);
|
||||||
|
if (state->i2c_cec == NULL) {
|
||||||
|
v4l2_err(sd, "failed to register cec i2c client\n");
|
||||||
|
goto err_unreg_edid;
|
||||||
|
}
|
||||||
|
adv7511_wr(sd, 0xe2, 0x00); /* power up cec section */
|
||||||
|
} else {
|
||||||
|
adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
|
||||||
|
}
|
||||||
|
|
||||||
state->i2c_pktmem = i2c_new_dummy(client->adapter, state->i2c_pktmem_addr >> 1);
|
state->i2c_pktmem = i2c_new_dummy(client->adapter, state->i2c_pktmem_addr >> 1);
|
||||||
if (state->i2c_pktmem == NULL) {
|
if (state->i2c_pktmem == NULL) {
|
||||||
v4l2_err(sd, "failed to register pktmem i2c client\n");
|
v4l2_err(sd, "failed to register pktmem i2c client\n");
|
||||||
err = -ENOMEM;
|
err = -ENOMEM;
|
||||||
goto err_unreg_edid;
|
goto err_unreg_cec;
|
||||||
}
|
}
|
||||||
|
|
||||||
adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
|
|
||||||
state->work_queue = create_singlethread_workqueue(sd->name);
|
state->work_queue = create_singlethread_workqueue(sd->name);
|
||||||
if (state->work_queue == NULL) {
|
if (state->work_queue == NULL) {
|
||||||
v4l2_err(sd, "could not create workqueue\n");
|
v4l2_err(sd, "could not create workqueue\n");
|
||||||
|
@ -1546,6 +1912,19 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
|
||||||
INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
|
INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
|
||||||
|
|
||||||
adv7511_init_setup(sd);
|
adv7511_init_setup(sd);
|
||||||
|
|
||||||
|
#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
|
||||||
|
state->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops,
|
||||||
|
state, dev_name(&client->dev), CEC_CAP_TRANSMIT |
|
||||||
|
CEC_CAP_LOG_ADDRS | CEC_CAP_PASSTHROUGH | CEC_CAP_RC,
|
||||||
|
ADV7511_MAX_ADDRS, &client->dev);
|
||||||
|
err = PTR_ERR_OR_ZERO(state->cec_adap);
|
||||||
|
if (err) {
|
||||||
|
destroy_workqueue(state->work_queue);
|
||||||
|
goto err_unreg_pktmem;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
adv7511_set_isr(sd, true);
|
adv7511_set_isr(sd, true);
|
||||||
adv7511_check_monitor_present_status(sd);
|
adv7511_check_monitor_present_status(sd);
|
||||||
|
|
||||||
|
@ -1555,6 +1934,9 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
|
||||||
|
|
||||||
err_unreg_pktmem:
|
err_unreg_pktmem:
|
||||||
i2c_unregister_device(state->i2c_pktmem);
|
i2c_unregister_device(state->i2c_pktmem);
|
||||||
|
err_unreg_cec:
|
||||||
|
if (state->i2c_cec)
|
||||||
|
i2c_unregister_device(state->i2c_cec);
|
||||||
err_unreg_edid:
|
err_unreg_edid:
|
||||||
i2c_unregister_device(state->i2c_edid);
|
i2c_unregister_device(state->i2c_edid);
|
||||||
err_entity:
|
err_entity:
|
||||||
|
@ -1576,9 +1958,12 @@ static int adv7511_remove(struct i2c_client *client)
|
||||||
v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
|
v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
|
||||||
client->addr << 1, client->adapter->name);
|
client->addr << 1, client->adapter->name);
|
||||||
|
|
||||||
|
adv7511_set_isr(sd, false);
|
||||||
adv7511_init_setup(sd);
|
adv7511_init_setup(sd);
|
||||||
cancel_delayed_work(&state->edid_handler);
|
cancel_delayed_work(&state->edid_handler);
|
||||||
i2c_unregister_device(state->i2c_edid);
|
i2c_unregister_device(state->i2c_edid);
|
||||||
|
if (state->i2c_cec)
|
||||||
|
i2c_unregister_device(state->i2c_cec);
|
||||||
i2c_unregister_device(state->i2c_pktmem);
|
i2c_unregister_device(state->i2c_pktmem);
|
||||||
destroy_workqueue(state->work_queue);
|
destroy_workqueue(state->work_queue);
|
||||||
v4l2_device_unregister_subdev(sd);
|
v4l2_device_unregister_subdev(sd);
|
||||||
|
|
|
@ -32,11 +32,7 @@ struct adv7511_monitor_detect {
|
||||||
struct adv7511_edid_detect {
|
struct adv7511_edid_detect {
|
||||||
int present;
|
int present;
|
||||||
int segment;
|
int segment;
|
||||||
};
|
uint16_t phys_addr;
|
||||||
|
|
||||||
struct adv7511_cec_arg {
|
|
||||||
void *arg;
|
|
||||||
u32 f_flags;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
struct adv7511_platform_data {
|
struct adv7511_platform_data {
|
||||||
|
|
Loading…
Reference in a new issue