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Subject: media: pulse8-cec: add support for FW v10 and up
Author: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Date: Fri Nov 27 12:52:30 2020 +0100
Starting with firmware version 10 the GET/SET_HDMI_VERSION message
was removed and GET/SET_AUTO_POWER_ON was added.
The removal of GET/SET_HDMI_VERSION caused the probe of the
Pulse-Eight to fail. Add a version check to handle this gracefully.
Also show (but do not set) the Auto Power On value.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Reported-by: Maxime Ripard <mripard@xxxxxxxxxx>
Tested-by: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
drivers/media/cec/usb/pulse8/pulse8-cec.c | 43 +++++++++++++++++++++----------
1 file changed, 30 insertions(+), 13 deletions(-)
---
diff --git a/drivers/media/cec/usb/pulse8/pulse8-cec.c b/drivers/media/cec/usb/pulse8/pulse8-cec.c
index 5d3a3f775bc8..04b13cdc38d2 100644
--- a/drivers/media/cec/usb/pulse8/pulse8-cec.c
+++ b/drivers/media/cec/usb/pulse8/pulse8-cec.c
@@ -88,13 +88,15 @@ enum pulse8_msgcodes {
MSGCODE_SET_PHYSICAL_ADDRESS, /* 0x20 */
MSGCODE_GET_DEVICE_TYPE,
MSGCODE_SET_DEVICE_TYPE,
- MSGCODE_GET_HDMI_VERSION,
+ MSGCODE_GET_HDMI_VERSION, /* Removed in FW >= 10 */
MSGCODE_SET_HDMI_VERSION,
MSGCODE_GET_OSD_NAME,
MSGCODE_SET_OSD_NAME,
MSGCODE_WRITE_EEPROM,
MSGCODE_GET_ADAPTER_TYPE, /* 0x28 */
MSGCODE_SET_ACTIVE_SOURCE,
+ MSGCODE_GET_AUTO_POWER_ON, /* New for FW >= 10 */
+ MSGCODE_SET_AUTO_POWER_ON,
MSGCODE_FRAME_EOM = 0x80,
MSGCODE_FRAME_ACK = 0x40,
@@ -143,6 +145,8 @@ static const char * const pulse8_msgnames[] = {
"WRITE_EEPROM",
"GET_ADAPTER_TYPE",
"SET_ACTIVE_SOURCE",
+ "GET_AUTO_POWER_ON",
+ "SET_AUTO_POWER_ON",
};
static const char *pulse8_msgname(u8 cmd)
@@ -579,12 +583,14 @@ static int pulse8_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
if (err)
goto unlock;
- cmd[0] = MSGCODE_SET_HDMI_VERSION;
- cmd[1] = adap->log_addrs.cec_version;
- err = pulse8_send_and_wait(pulse8, cmd, 2,
- MSGCODE_COMMAND_ACCEPTED, 0);
- if (err)
- goto unlock;
+ if (pulse8->vers < 10) {
+ cmd[0] = MSGCODE_SET_HDMI_VERSION;
+ cmd[1] = adap->log_addrs.cec_version;
+ err = pulse8_send_and_wait(pulse8, cmd, 2,
+ MSGCODE_COMMAND_ACCEPTED, 0);
+ if (err)
+ goto unlock;
+ }
if (adap->log_addrs.osd_name[0]) {
size_t osd_len = strlen(adap->log_addrs.osd_name);
@@ -691,6 +697,14 @@ static int pulse8_setup(struct pulse8 *pulse8, struct serio *serio,
dev_dbg(pulse8->dev, "Autonomous mode: %s",
data[0] ? "on" : "off");
+ if (pulse8->vers >= 10) {
+ cmd[0] = MSGCODE_GET_AUTO_POWER_ON;
+ err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 1);
+ if (!err)
+ dev_dbg(pulse8->dev, "Auto Power On: %s",
+ data[0] ? "on" : "off");
+ }
+
cmd[0] = MSGCODE_GET_DEVICE_TYPE;
err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 1);
if (err)
@@ -752,12 +766,15 @@ static int pulse8_setup(struct pulse8 *pulse8, struct serio *serio,
dev_dbg(pulse8->dev, "Physical address: %x.%x.%x.%x\n",
cec_phys_addr_exp(*pa));
- cmd[0] = MSGCODE_GET_HDMI_VERSION;
- err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 1);
- if (err)
- return err;
- log_addrs->cec_version = data[0];
- dev_dbg(pulse8->dev, "CEC version: %d\n", log_addrs->cec_version);
+ log_addrs->cec_version = CEC_OP_CEC_VERSION_1_4;
+ if (pulse8->vers < 10) {
+ cmd[0] = MSGCODE_GET_HDMI_VERSION;
+ err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 1);
+ if (err)
+ return err;
+ log_addrs->cec_version = data[0];
+ dev_dbg(pulse8->dev, "CEC version: %d\n", log_addrs->cec_version);
+ }
cmd[0] = MSGCODE_GET_OSD_NAME;
err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 0);
