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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2014-01-07 15:08:37 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-01-13 12:29:12 +0100 |
| commit | 3603e31db54ddba820b7a7b9c7659e272f8c65de (patch) | |
| tree | 045cd42942de2b0e4b7ec09b5322a5ead2614c7d /common/cmd_usb_mass_storage.c | |
| parent | 7da765125165c172078489336117f95de2904322 (diff) | |
| download | talos-obmc-uboot-3603e31db54ddba820b7a7b9c7659e272f8c65de.tar.gz talos-obmc-uboot-3603e31db54ddba820b7a7b9c7659e272f8c65de.zip | |
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>
Diffstat (limited to 'common/cmd_usb_mass_storage.c')
| -rw-r--r-- | common/cmd_usb_mass_storage.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 99487f4d0f..5f557d5f85 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(); |
