[U-Boot] [PATCH] usb: ums: wait for usb cable connection before enter ums mode
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
--- common/cmd_usb_mass_storage.c | 24 ++++++++++++++++++++++++ include/usb_mass_storage.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4..5f557d5 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -42,6 +42,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
g_dnl_register("ums");
+ /* Timeout unit: seconds */ + int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT; + + if (!usb_cable_connected()) { + puts("Please connect USB cable.\n"); + + while (!usb_cable_connected()) { + if (ctrlc()) { + puts("\rCTRL+C - Operation aborted.\n"); + goto exit; + } + if (!cable_ready_timeout) { + puts("\rUSB cable not detected.\n" \ + "Command exit.\n"); + goto exit; + } + + printf("\rAuto exit in: %.2d s.", cable_ready_timeout); + mdelay(1000); + cable_ready_timeout--; + } + puts("\r\n"); + } + while (1) { usb_gadget_handle_interrupts();
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 9df3adc..058dcf1 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -20,6 +20,9 @@ #define UMS_NUM_SECTORS 0 #endif
+/* Wait at maximum 60 seconds for cable connection */ +#define UMS_CABLE_READY_TIMEOUT 60 + struct ums { int (*read_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf);
Hello everyone,
On 01/07/2014 03:08 PM, Przemyslaw Marczak wrote:
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
common/cmd_usb_mass_storage.c | 24 ++++++++++++++++++++++++ include/usb_mass_storage.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4..5f557d5 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -42,6 +42,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
g_dnl_register("ums");
- /* Timeout unit: seconds */
- int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
- if (!usb_cable_connected()) {
puts("Please connect USB cable.\n");while (!usb_cable_connected()) {if (ctrlc()) {puts("\rCTRL+C - Operation aborted.\n");goto exit;}if (!cable_ready_timeout) {puts("\rUSB cable not detected.\n" \"Command exit.\n");goto exit;}printf("\rAuto exit in: %.2d s.", cable_ready_timeout);mdelay(1000);cable_ready_timeout--;}puts("\r\n");- }
- while (1) { usb_gadget_handle_interrupts();
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 9df3adc..058dcf1 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -20,6 +20,9 @@ #define UMS_NUM_SECTORS 0 #endif
+/* Wait at maximum 60 seconds for cable connection */ +#define UMS_CABLE_READY_TIMEOUT 60
- struct ums { int (*read_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf);
I was send some very useful fix to the ums. It is required for users who are using the same usb port for USB and UART purposes. Without this fix such users just can't use ums because it will always exit to prompt when user change the cable.
So I have few questions... Marek, could you review this patch? And what about the release, are you going to send pull request before the release? If not, then is it possible to apply this patch directly to u-boot/master by Tom Rini?
Thank you,
On Monday, January 13, 2014 at 10:18:51 AM, Przemyslaw Marczak wrote:
Hello everyone,
On 01/07/2014 03:08 PM, Przemyslaw Marczak wrote:
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
common/cmd_usb_mass_storage.c | 24 ++++++++++++++++++++++++ include/usb_mass_storage.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4..5f557d5 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -42,6 +42,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
g_dnl_register("ums");
/* Timeout unit: seconds */
int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
if (!usb_cable_connected()) {
puts("Please connect USB cable.\n");while (!usb_cable_connected()) {if (ctrlc()) {puts("\rCTRL+C - Operation aborted.\n");goto exit;}if (!cable_ready_timeout) {puts("\rUSB cable not detected.\n" \"Command exit.\n");goto exit;}printf("\rAuto exit in: %.2d s.", cable_ready_timeout);mdelay(1000);cable_ready_timeout--;}puts("\r\n");}
while (1) {
usb_gadget_handle_interrupts();
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 9df3adc..058dcf1 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -20,6 +20,9 @@
#define UMS_NUM_SECTORS 0 #endif
+/* Wait at maximum 60 seconds for cable connection */ +#define UMS_CABLE_READY_TIMEOUT 60
struct ums {
int (*read_sector)(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, void *buf);I was send some very useful fix to the ums. It is required for users who are using the same usb port for USB and UART purposes. Without this fix such users just can't use ums because it will always exit to prompt when user change the cable.
Can you please share the schematic of such a cable in public? How does this "sharing" of USB and UART work? I am very curious here :-)
So I have few questions... Marek, could you review this patch?
On it!
And what about the release, are you going to send pull request before the release? If not, then is it possible to apply this patch directly to u-boot/master by Tom Rini?
PR will happen once I am through the load of patches in my mailbox.
Hello,
On 01/13/2014 12:14 PM, Marek Vasut wrote:
On Monday, January 13, 2014 at 10:18:51 AM, Przemyslaw Marczak wrote:
Hello everyone,
On 01/07/2014 03:08 PM, Przemyslaw Marczak wrote:
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
common/cmd_usb_mass_storage.c | 24 ++++++++++++++++++++++++ include/usb_mass_storage.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4..5f557d5 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -42,6 +42,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
g_dnl_register("ums");
/* Timeout unit: seconds */
int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
if (!usb_cable_connected()) {
puts("Please connect USB cable.\n");while (!usb_cable_connected()) {if (ctrlc()) {puts("\rCTRL+C - Operation aborted.\n");goto exit;}if (!cable_ready_timeout) {puts("\rUSB cable not detected.\n" \"Command exit.\n");goto exit;}printf("\rAuto exit in: %.2d s.", cable_ready_timeout);mdelay(1000);cable_ready_timeout--;}puts("\r\n");}
while (1) { usb_gadget_handle_interrupts();
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 9df3adc..058dcf1 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -20,6 +20,9 @@
#define UMS_NUM_SECTORS 0 #endif
+/* Wait at maximum 60 seconds for cable connection */ +#define UMS_CABLE_READY_TIMEOUT 60
struct ums {
int (*read_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf);
I was send some very useful fix to the ums. It is required for users who are using the same usb port for USB and UART purposes. Without this fix such users just can't use ums because it will always exit to prompt when user change the cable.
Can you please share the schematic of such a cable in public?
Unfortunately I am not allowed to share such information.
How does this "sharing" of USB and UART work? I am very curious here :-)
Regarding the USB sharing explanation - please refer to FSA9480 data sheet. It is available on the Internet.
I can also recommend looking into newest kernel code support for Trats2 device.
So I have few questions... Marek, could you review this patch?
On it!
And what about the release, are you going to send pull request before the release? If not, then is it possible to apply this patch directly to u-boot/master by Tom Rini?
PR will happen once I am through the load of patches in my mailbox.
Thank you for patch apply.
Regards,
On Monday, January 13, 2014 at 02:31:58 PM, Przemyslaw Marczak wrote:
Hello,
On 01/13/2014 12:14 PM, Marek Vasut wrote:
On Monday, January 13, 2014 at 10:18:51 AM, Przemyslaw Marczak wrote:
Hello everyone,
On 01/07/2014 03:08 PM, Przemyslaw Marczak wrote:
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
common/cmd_usb_mass_storage.c | 24 ++++++++++++++++++++++++ include/usb_mass_storage.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4..5f557d5 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -42,6 +42,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
g_dnl_register("ums");
/* Timeout unit: seconds */
int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
if (!usb_cable_connected()) {
puts("Please connect USB cable.\n");while (!usb_cable_connected()) {if (ctrlc()) {puts("\rCTRL+C - Operation aborted.\n");goto exit;}if (!cable_ready_timeout) {puts("\rUSB cable not detected.\n" \"Command exit.\n");goto exit;}printf("\rAuto exit in: %.2d s.", cable_ready_timeout);mdelay(1000);cable_ready_timeout--;}puts("\r\n");}
while (1) { usb_gadget_handle_interrupts();
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 9df3adc..058dcf1 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -20,6 +20,9 @@
#define UMS_NUM_SECTORS 0 #endif
+/* Wait at maximum 60 seconds for cable connection */ +#define UMS_CABLE_READY_TIMEOUT 60
struct ums {
int (*read_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf);
I was send some very useful fix to the ums. It is required for users who are using the same usb port for USB and UART purposes. Without this fix such users just can't use ums because it will always exit to prompt when user change the cable.
Can you please share the schematic of such a cable in public?
Unfortunately I am not allowed to share such information.
Is the trats2 so similar to galaxy SIII or what ? :)
How does this "sharing" of USB and UART work? I am very curious here :-)
Regarding the USB sharing explanation - please refer to FSA9480 data sheet. It is available on the Internet.
Thanks.
I can also recommend looking into newest kernel code support for Trats2 device.
Yes, this is helpful, thanks!
So I have few questions... Marek, could you review this patch?
On it!
And what about the release, are you going to send pull request before the release? If not, then is it possible to apply this patch directly to u-boot/master by Tom Rini?
PR will happen once I am through the load of patches in my mailbox.
Thank you for patch apply.
Regards,
On Tuesday, January 07, 2014 at 03:08:37 PM, Przemyslaw Marczak wrote:
Before this change ums mode can not be entered when device was using the same usb port for usb/uart communication. Switching USB cable from UART to USB always causes ums exit.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
Applied, thanks.
Best regards, Marek Vasut
participants (2)
-
Marek Vasut -
Przemyslaw Marczak