this makes it slightly easier to read generic CMD
logs. It also helps make sure we're sending proper
parameters for each command.
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/dwc3/gadget.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2406a82..c37c8ff 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -302,6 +302,32 @@ static const char *dwc3_gadget_ep_cmd_string(u8 cmd)
}
}
+static const char *dwc3_gadget_generic_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ case DWC3_DGCMD_SET_LMP:
+ return "Set LMP";
+ case DWC3_DGCMD_SET_PERIODIC_PAR:
+ return "Set Periodic Parameters";
+ case DWC3_DGCMD_XMIT_FUNCTION:
+ return "Transmit Function Wake Device Notification";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
+ return "Set Scratchpad Buffer Array Address Lo";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
+ return "Set Scratchpad Buffer Array Address Hi";
+ case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
+ return "Selected FIFO Flush";
+ case DWC3_DGCMD_ALL_FIFO_FLUSH:
+ return "All FIFO Flush";
+ case DWC3_DGCMD_SET_ENDPOINT_NRDY:
+ return "Set Endpoint NRDY";
+ case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
+ return "Run SoC Bus Loopback Test";
+ default:
+ return "UNKNOWN";
+ }
+}
+
static const char *dwc3_gadget_link_string(enum dwc3_link_state link_state)
{
switch (link_state) {
@@ -343,6 +369,9 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param)
u32 timeout = 500;
u32 reg;
+ dev_vdbg(dwc->dev, "generic cmd '%s' [%d] param %08x\n",
+ dwc3_gadget_generic_cmd_string(cmd), cmd, param);
+
dwc3_writel(dwc->regs, DWC3_DGCMDPAR, param);
dwc3_writel(dwc->regs, DWC3_DGCMD, cmd | DWC3_DGCMD_CMDACT);
--
1.9.2.459.g68773ac
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