michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: usb_dc_sam_usbhs: default to full-speed

Browse source 
Use DT_INST_ENUM_IDX_OR and always default to full-speed
if CONFIG_USB_DC_HAS_HS_SUPPORT is not set or maximum-speed
property is not defined.
Remove low-speed setting since device stack does not support it.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2021-11-19 11:51:48 +01:00 • committed by Carles Cufí
commit 48362df588
1 changed files with 5 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

19
drivers/usb/device/usb_dc_sam_usbhs.c
View file

@ -46,11 +46,8 @@ LOG_MODULE_REGISTER(usb_dc_sam_usbhs);
#endif
#define NUM_OF_EP_MAX DT_INST_PROP(0, num_bidir_endpoints)
#if DT_INST_NODE_HAS_PROP(0, maximum_speed)
#define USB_MAXIMUM_SPEED DT_INST_ENUM_IDX(0, maximum_speed)
#else
#define USB_MAXIMUM_SPEED 2 /* Default to high-speed */
#endif
#define USB_MAXIMUM_SPEED DT_INST_ENUM_IDX_OR(0, maximum_speed, 1)
BUILD_ASSERT(USB_MAXIMUM_SPEED, "low-speed is not supported");
struct usb_device_ep_data {
uint16_t mps;
@ -312,18 +309,12 @@ int usb_dc_attach(void)
/* Select the speed */
regval = USBHS_DEVCTRL_DETACH;
#if USB_MAXIMUM_SPEED == 0
/* low-speed */
regval |= USBHS_DEVCTRL_LS;
regval |= USBHS_DEVCTRL_SPDCONF_LOW_POWER;
#elif USB_MAXIMUM_SPEED == 1
/* full-speed */
regval |= USBHS_DEVCTRL_SPDCONF_LOW_POWER;
#elif USB_MAXIMUM_SPEED == 2
#if (USB_MAXIMUM_SPEED == 2) && IS_ENABLED(CONFIG_USB_DC_HAS_HS_SUPPORT)
/* high-speed */
regval |= USBHS_DEVCTRL_SPDCONF_NORMAL;
#else
#error "Unsupported maximum speed defined in device tree."
/* full-speed */
regval |= USBHS_DEVCTRL_SPDCONF_LOW_POWER;
#endif
USBHS->USBHS_DEVCTRL = regval;