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Commit 427c3df6 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: pretty print Generic CMDs 



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: default avatarFelipe Balbi <balbi@ti.com>
parent e57ebc1d

drivers/usb/dwc3/gadget.c

+29 −0
Original line number Diff line number Diff line
@@ -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);