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Add definitions and structures for USB 2.0 Link Power Management, LPM.

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MFC after:	2 weeks
This commit is contained in:
Hans Petter Selasky 2012-04-02 07:51:30 +00:00
parent 32ffd2336c
commit 4563ba7a0d
3 changed files with 69 additions and 3 deletions
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16
sys/dev/usb/usb.h
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@ -225,7 +225,8 @@ typedef struct usb_device_request usb_device_request_t;
#define UR_RESET_TT 0x09
#define UR_GET_TT_STATE 0x0a
#define UR_STOP_TT 0x0b
#define UR_SET_HUB_DEPTH 0x0c
#define UR_SET_AND_TEST 0x0c /* USB 2.0 only */
#define UR_SET_HUB_DEPTH 0x0c /* USB 3.0 only */
#define USB_SS_HUB_DEPTH_MAX 5
#define UR_GET_PORT_ERR_COUNT 0x0d
@ -248,6 +249,7 @@ typedef struct usb_device_request usb_device_request_t;
#define UHF_PORT_LINK_STATE 5
#define UHF_PORT_POWER 8
#define UHF_PORT_LOW_SPEED 9
#define UHF_PORT_L1 10
#define UHF_C_PORT_CONNECTION 16
#define UHF_C_PORT_ENABLE 17
#define UHF_C_PORT_SUSPEND 18
@ -255,6 +257,7 @@ typedef struct usb_device_request usb_device_request_t;
#define UHF_C_PORT_RESET 20
#define UHF_PORT_TEST 21
#define UHF_PORT_INDICATOR 22
#define UHF_C_PORT_L1 23
/* SuperSpeed HUB specific features */
#define UHF_PORT_U1_TIMEOUT 23
@ -324,7 +327,12 @@ struct usb_devcap_usb2ext_descriptor {
uByte bDescriptorType;
uByte bDevCapabilityType;
uDWord bmAttributes;
#define USB_V2EXT_LPM 0x02
#define USB_V2EXT_LPM (1U << 1)
#define USB_V2EXT_BESL_SUPPORTED (1U << 2)
#define USB_V2EXT_BESL_BASELINE_VALID (1U << 3)
#define USB_V2EXT_BESL_DEEP_VALID (1U << 4)
#define USB_V2EXT_BESL_BASELINE_GET(x) (((x) >> 8) & 0xF)
#define USB_V2EXT_BESL_DEEP_GET(x) (((x) >> 12) & 0xF)
} __packed;
typedef struct usb_devcap_usb2ext_descriptor usb_devcap_usb2ext_descriptor_t;
@ -671,6 +679,7 @@ struct usb_port_status {
#define UPS_SUSPEND 0x0004
#define UPS_OVERCURRENT_INDICATOR 0x0008
#define UPS_RESET 0x0010
#define UPS_PORT_L1 0x0020 /* USB 2.0 only */
/* The link-state bits are valid for Super-Speed USB HUBs */
#define UPS_PORT_LINK_STATE_GET(x) (((x) >> 5) & 0xF)
#define UPS_PORT_LINK_STATE_SET(x) (((x) & 0xF) << 5)
@ -701,7 +710,8 @@ struct usb_port_status {
#define UPS_C_SUSPEND 0x0004
#define UPS_C_OVERCURRENT_INDICATOR 0x0008
#define UPS_C_PORT_RESET 0x0010
#define UPS_C_BH_PORT_RESET 0x0020
#define UPS_C_PORT_L1 0x0020 /* USB 2.0 only */
#define UPS_C_BH_PORT_RESET 0x0020 /* USB 3.0 only */
#define UPS_C_PORT_LINK_STATE 0x0040
#define UPS_C_PORT_CONFIG_ERROR 0x0080
} __packed;

54
sys/dev/usb/usb_request.c
View File

@ -2226,3 +2226,57 @@ usbd_req_set_port_link_state(struct usb_device *udev, struct mtx *mtx,
USETW(req.wLength, 0);
return (usbd_do_request(udev, mtx, &req, 0));
}
/*------------------------------------------------------------------------*
* usbd_req_set_lpm_info
*
* USB 2.0 specific request for Link Power Management.
*
* Returns:
* 0: Success
* USB_ERR_PENDING_REQUESTS: NYET
* USB_ERR_TIMEOUT: TIMEOUT
* USB_ERR_STALL: STALL
* Else: Failure
*------------------------------------------------------------------------*/
usb_error_t
usbd_req_set_lpm_info(struct usb_device *udev, struct mtx *mtx,
uint8_t port, uint8_t besl, uint8_t addr, uint8_t rwe)
{
struct usb_device_request req;
usb_error_t err;
uint8_t buf[1];
req.bmRequestType = UT_WRITE_CLASS_OTHER;
req.bRequest = UR_SET_AND_TEST;
USETW(req.wValue, UHF_PORT_L1);
req.wIndex[0] = (port & 0xF) | ((besl & 0xF) << 4);
req.wIndex[1] = (addr & 0x7F) | (rwe ? 0x80 : 0x00);
USETW(req.wLength, sizeof(buf));
/* set default value in case of short transfer */
buf[0] = 0x00;
err = usbd_do_request(udev, mtx, &req, buf);
if (err)
return (err);
switch (buf[0]) {
case 0x00: /* SUCCESS */
break;
case 0x10: /* NYET */
err = USB_ERR_PENDING_REQUESTS;
break;
case 0x11: /* TIMEOUT */
err = USB_ERR_TIMEOUT;
break;
case 0x30: /* STALL */
err = USB_ERR_STALLED;
break;
default: /* reserved */
err = USB_ERR_IOERROR;
break;
}
return (err);
}

2
sys/dev/usb/usb_request.h
View File

@ -91,5 +91,7 @@ usb_error_t usbd_req_clear_tt_buffer(struct usb_device *udev, struct mtx *mtx,
uint8_t port, uint8_t addr, uint8_t type, uint8_t endpoint);
usb_error_t usbd_req_set_port_link_state(struct usb_device *udev,
struct mtx *mtx, uint8_t port, uint8_t link_state);
usb_error_t usbd_req_set_lpm_info(struct usb_device *udev, struct mtx *mtx,
uint8_t port, uint8_t besl, uint8_t addr, uint8_t rwe);
#endif /* _USB_REQUEST_H_ */