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Plankton: Support DFU mode

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This includes:
  - Enabling SBU path for debug USB usage in USB mode (not in DP mode)
  - Add a console command to enable DFU mode for lab devices. This
    requires the additional Silego chip on the device.

BRANCH=None
BUG=None
TEST=Hook up a Ryu with the additional Silego chip. Issue 'dfu' command
and see DFU device in 'lsusb' output. Issue the command again and the
device goes away.

Change-Id: I3f942c6abe52784351f2242c9b0b6400e9b2b6fd
Signed-off-by: Vic Yang <victoryang@google.com>
Reviewed-on: https://chromium-review.googlesource.com/247350
Tested-by: Vic Yang <victoryang@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vic Yang <victoryang@chromium.org>
This commit is contained in:
Vic Yang
2015-02-06 16:03:16 -08:00
committed by ChromeOS Commit Bot
parent 911c1821f9
commit eb86f21b05
1 changed files with 22 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
board/plankton/board.c
View File

@@ -56,6 +56,7 @@ enum board_src_cap src_cap_mapping[USBC_ACT_COUNT] =
static void set_usbc_action(enum usbc_action act)
{
int need_soft_reset;
int was_usb_mode;
switch (act) {
case USBC_ACT_5V_TO_DUT:
@@ -71,8 +72,9 @@ static void set_usbc_action(enum usbc_action act)
pd_set_dual_role(PD_DRP_FORCE_SINK);
break;
case USBC_ACT_USBDP_TOGGLE:
gpio_set_level(GPIO_USBC_SS_USB_MODE,
!gpio_get_level(GPIO_USBC_SS_USB_MODE));
was_usb_mode = gpio_get_level(GPIO_USBC_SS_USB_MODE);
gpio_set_level(GPIO_USBC_SS_USB_MODE, !was_usb_mode);
gpio_set_level(GPIO_CASE_CLOSE_EN, !was_usb_mode);
break;
case USBC_ACT_USB_EN:
gpio_set_level(GPIO_USBC_SS_USB_MODE, 1);
@@ -380,3 +382,21 @@ static int cmd_fake_disconnect(int argc, char *argv[])
}
DECLARE_CONSOLE_COMMAND(fake_disconnect, cmd_fake_disconnect,
"<delay_ms> <duration_ms>", NULL, NULL);
static void trigger_dfu_release(void)
{
gpio_set_level(GPIO_CASE_CLOSE_DFU_L, 1);
ccprintf("Deasserting CASE_CLOSE_DFU_L.\n");
}
DECLARE_DEFERRED(trigger_dfu_release);
static int cmd_trigger_dfu(int argc, char *argv[])
{
gpio_set_level(GPIO_CASE_CLOSE_DFU_L, 0);
ccprintf("Asserting CASE_CLOSE_DFU_L.\n");
ccprintf("If you expect to see DFU debug but it doesn't show up,\n");
ccprintf("try flipping the USB type-C cable.\n");
hook_call_deferred(trigger_dfu_release, 1500 * MSEC);
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(dfu, cmd_trigger_dfu, NULL, NULL, NULL);