Commit 321790f6 authored by Bryan Wu's avatar Bryan Wu Committed by Remy Bohmer

usb: musb: add virtual root hub control support

For MUSB devices that do not support multipoint (hubs), we have to emulate
a root hub so that we can support core operations like resetting ports.
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
Signed-off-by: default avatarCliff Cai <cliff.cai@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 559e2c87
This diff is collapsed.
......@@ -50,6 +50,61 @@ extern unsigned char new[];
((readb(&musbr->power) & MUSB_POWER_HSMODE) \
>> MUSB_POWER_HSMODE_SHIFT)
#define min_t(type, x, y) \
({ type __x = (x); type __y = (y); __x < __y ? __x : __y; })
/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
/* destination of request */
#define RH_INTERFACE 0x01
#define RH_ENDPOINT 0x02
#define RH_OTHER 0x03
#define RH_CLASS 0x20
#define RH_VENDOR 0x40
/* Requests: bRequest << 8 | bmRequestType */
#define RH_GET_STATUS 0x0080
#define RH_CLEAR_FEATURE 0x0100
#define RH_SET_FEATURE 0x0300
#define RH_SET_ADDRESS 0x0500
#define RH_GET_DESCRIPTOR 0x0680
#define RH_SET_DESCRIPTOR 0x0700
#define RH_GET_CONFIGURATION 0x0880
#define RH_SET_CONFIGURATION 0x0900
#define RH_GET_STATE 0x0280
#define RH_GET_INTERFACE 0x0A80
#define RH_SET_INTERFACE 0x0B00
#define RH_SYNC_FRAME 0x0C80
/* Our Vendor Specific Request */
#define RH_SET_EP 0x2000
/* Hub port features */
#define RH_PORT_CONNECTION 0x00
#define RH_PORT_ENABLE 0x01
#define RH_PORT_SUSPEND 0x02
#define RH_PORT_OVER_CURRENT 0x03
#define RH_PORT_RESET 0x04
#define RH_PORT_POWER 0x08
#define RH_PORT_LOW_SPEED 0x09
#define RH_C_PORT_CONNECTION 0x10
#define RH_C_PORT_ENABLE 0x11
#define RH_C_PORT_SUSPEND 0x12
#define RH_C_PORT_OVER_CURRENT 0x13
#define RH_C_PORT_RESET 0x14
/* Hub features */
#define RH_C_HUB_LOCAL_POWER 0x00
#define RH_C_HUB_OVER_CURRENT 0x01
#define RH_DEVICE_REMOTE_WAKEUP 0x00
#define RH_ENDPOINT_STALL 0x01
#define RH_ACK 0x01
#define RH_REQ_ERR -1
#define RH_NACK 0x00
/* extern functions */
extern int musb_platform_init(void);
extern void musb_platform_deinit(void);
......
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