diff mbox series

[3/3] usb: misc: ljca: print firmware version

Message ID 20241104085056.652294-3-stanislaw.gruszka@linux.intel.com (mailing list archive)
State Superseded
Headers show
Series [1/3] usb: misc: ljca: move usb_autopm_put_interface() after wait for response | expand

Commit Message

Stanislaw Gruszka Nov. 4, 2024, 8:50 a.m. UTC
For diagnostics purposes read firmware version from device
and print it to dmesg during initialization.

Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
---
 drivers/usb/misc/usb-ljca.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

Comments

Hans de Goede Nov. 4, 2024, 1:51 p.m. UTC | #1
Hi,

On 4-Nov-24 9:50 AM, Stanislaw Gruszka wrote:
> For diagnostics purposes read firmware version from device
> and print it to dmesg during initialization.
> 
> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@redhat.com>

I have also given this a test run on a "ThinkPad X1 Yoga Gen 8" and
everything there works at least as well as before:

Tested-by: Hans de Goede <hdegoede@redhat.com> # ThinkPad X1 Yoga Gen 8, ov2740

On this laptop the reported LJCA firmware version is:

[   25.704000] ljca 3-8:1.0: Firmware version: 1.0.0.544

Regards,

Hans



> ---
>  drivers/usb/misc/usb-ljca.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/usb/misc/usb-ljca.c b/drivers/usb/misc/usb-ljca.c
> index 062b7fb47114..0f8751c51bf6 100644
> --- a/drivers/usb/misc/usb-ljca.c
> +++ b/drivers/usb/misc/usb-ljca.c
> @@ -43,6 +43,7 @@ enum ljca_client_type {
>  
>  /* MNG client commands */
>  enum ljca_mng_cmd {
> +	LJCA_MNG_GET_VERSION = 1,
>  	LJCA_MNG_RESET = 2,
>  	LJCA_MNG_ENUM_GPIO = 4,
>  	LJCA_MNG_ENUM_I2C = 5,
> @@ -68,6 +69,13 @@ struct ljca_msg {
>  	u8 data[] __counted_by(len);
>  } __packed;
>  
> +struct ljca_fw_version {
> +	u8 major;
> +	u8 minor;
> +	__le16 patch;
> +	__le16 build;
> +} __packed;
> +
>  struct ljca_i2c_ctr_info {
>  	u8 id;
>  	u8 capacity;
> @@ -694,6 +702,24 @@ static int ljca_reset_handshake(struct ljca_adapter *adap)
>  	return 0;
>  }
>  
> +static void ljca_print_fw_version(struct ljca_adapter *adap)
> +{
> +	struct ljca_fw_version version = {};
> +	int ret;
> +
> +	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_GET_VERSION, NULL, 0,
> +			(u8 *)&version, sizeof(version), true, LJCA_WRITE_ACK_TIMEOUT_MS);
> +
> +	if (ret != sizeof(version)) {
> +		dev_err(adap->dev, "Get version failed, ret: %d\n", ret);
> +		return;
> +	}
> +
> +	dev_info(adap->dev, "Firmware version: %d.%d.%d.%d\n",
> +		 version.major, version.minor,
> +		 le16_to_cpu(version.patch), le16_to_cpu(version.build));
> +}
> +
>  static int ljca_enumerate_clients(struct ljca_adapter *adap)
>  {
>  	struct ljca_client *client, *next;
> @@ -810,6 +836,8 @@ static int ljca_probe(struct usb_interface *interface,
>  	if (ret)
>  		goto err_free;
>  
> +	ljca_print_fw_version(adap);
> +
>  	pm_runtime_set_autosuspend_delay(&usb_dev->dev, 10);
>  	usb_enable_autosuspend(usb_dev);
>
Sakari Ailus Nov. 4, 2024, 10:32 p.m. UTC | #2
Hi Stanislaw,

Thanks for the patch.

On Mon, Nov 04, 2024 at 09:50:56AM +0100, Stanislaw Gruszka wrote:
> For diagnostics purposes read firmware version from device
> and print it to dmesg during initialization.
> 
> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> ---
>  drivers/usb/misc/usb-ljca.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/usb/misc/usb-ljca.c b/drivers/usb/misc/usb-ljca.c
> index 062b7fb47114..0f8751c51bf6 100644
> --- a/drivers/usb/misc/usb-ljca.c
> +++ b/drivers/usb/misc/usb-ljca.c
> @@ -43,6 +43,7 @@ enum ljca_client_type {
>  
>  /* MNG client commands */
>  enum ljca_mng_cmd {
> +	LJCA_MNG_GET_VERSION = 1,
>  	LJCA_MNG_RESET = 2,
>  	LJCA_MNG_ENUM_GPIO = 4,
>  	LJCA_MNG_ENUM_I2C = 5,
> @@ -68,6 +69,13 @@ struct ljca_msg {
>  	u8 data[] __counted_by(len);
>  } __packed;
>  
> +struct ljca_fw_version {
> +	u8 major;
> +	u8 minor;
> +	__le16 patch;
> +	__le16 build;
> +} __packed;
> +
>  struct ljca_i2c_ctr_info {
>  	u8 id;
>  	u8 capacity;
> @@ -694,6 +702,24 @@ static int ljca_reset_handshake(struct ljca_adapter *adap)
>  	return 0;
>  }
>  
> +static void ljca_print_fw_version(struct ljca_adapter *adap)
> +{
> +	struct ljca_fw_version version = {};
> +	int ret;
> +
> +	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_GET_VERSION, NULL, 0,
> +			(u8 *)&version, sizeof(version), true, LJCA_WRITE_ACK_TIMEOUT_MS);

This would be nicer wrapped to up to 80 chars per line.

> +
> +	if (ret != sizeof(version)) {
> +		dev_err(adap->dev, "Get version failed, ret: %d\n", ret);
> +		return;
> +	}
> +
> +	dev_info(adap->dev, "Firmware version: %d.%d.%d.%d\n",
> +		 version.major, version.minor,
> +		 le16_to_cpu(version.patch), le16_to_cpu(version.build));
> +}
> +
>  static int ljca_enumerate_clients(struct ljca_adapter *adap)
>  {
>  	struct ljca_client *client, *next;
> @@ -810,6 +836,8 @@ static int ljca_probe(struct usb_interface *interface,
>  	if (ret)
>  		goto err_free;
>  
> +	ljca_print_fw_version(adap);
> +
>  	pm_runtime_set_autosuspend_delay(&usb_dev->dev, 10);
>  	usb_enable_autosuspend(usb_dev);
>
diff mbox series

Patch

diff --git a/drivers/usb/misc/usb-ljca.c b/drivers/usb/misc/usb-ljca.c
index 062b7fb47114..0f8751c51bf6 100644
--- a/drivers/usb/misc/usb-ljca.c
+++ b/drivers/usb/misc/usb-ljca.c
@@ -43,6 +43,7 @@  enum ljca_client_type {
 
 /* MNG client commands */
 enum ljca_mng_cmd {
+	LJCA_MNG_GET_VERSION = 1,
 	LJCA_MNG_RESET = 2,
 	LJCA_MNG_ENUM_GPIO = 4,
 	LJCA_MNG_ENUM_I2C = 5,
@@ -68,6 +69,13 @@  struct ljca_msg {
 	u8 data[] __counted_by(len);
 } __packed;
 
+struct ljca_fw_version {
+	u8 major;
+	u8 minor;
+	__le16 patch;
+	__le16 build;
+} __packed;
+
 struct ljca_i2c_ctr_info {
 	u8 id;
 	u8 capacity;
@@ -694,6 +702,24 @@  static int ljca_reset_handshake(struct ljca_adapter *adap)
 	return 0;
 }
 
+static void ljca_print_fw_version(struct ljca_adapter *adap)
+{
+	struct ljca_fw_version version = {};
+	int ret;
+
+	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_GET_VERSION, NULL, 0,
+			(u8 *)&version, sizeof(version), true, LJCA_WRITE_ACK_TIMEOUT_MS);
+
+	if (ret != sizeof(version)) {
+		dev_err(adap->dev, "Get version failed, ret: %d\n", ret);
+		return;
+	}
+
+	dev_info(adap->dev, "Firmware version: %d.%d.%d.%d\n",
+		 version.major, version.minor,
+		 le16_to_cpu(version.patch), le16_to_cpu(version.build));
+}
+
 static int ljca_enumerate_clients(struct ljca_adapter *adap)
 {
 	struct ljca_client *client, *next;
@@ -810,6 +836,8 @@  static int ljca_probe(struct usb_interface *interface,
 	if (ret)
 		goto err_free;
 
+	ljca_print_fw_version(adap);
+
 	pm_runtime_set_autosuspend_delay(&usb_dev->dev, 10);
 	usb_enable_autosuspend(usb_dev);