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usb: gadget: renesas_usbhs: add usbhs_set_device_speed() support for host

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mod_host needs device speed setup function

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Kuninori Morimoto 2011-10-10 22:06:46 -07:00 committed by Felipe Balbi
parent a9be4a4562
commit eb05191f6a
2 changed files with 67 additions and 0 deletions
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42
drivers/usb/renesas_usbhs/common.c
View file

@ -226,6 +226,48 @@ static void usbhsc_bus_init(struct usbhs_priv *priv)
usbhs_vbus_ctrl(priv, 0);
}
/*
* device configuration
*/
int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum,
u16 upphub, u16 hubport, u16 speed)
{
struct device *dev = usbhs_priv_to_dev(priv);
u16 usbspd = 0;
u32 reg = DEVADD0 + (2 * devnum);
if (devnum > 10) {
dev_err(dev, "cannot set speed to unknown device %d\n", devnum);
return -EIO;
}
if (upphub > 0xA) {
dev_err(dev, "unsupported hub number %d\n", upphub);
return -EIO;
}
switch (speed) {
case USB_SPEED_LOW:
usbspd = USBSPD_SPEED_LOW;
break;
case USB_SPEED_FULL:
usbspd = USBSPD_SPEED_FULL;
break;
case USB_SPEED_HIGH:
usbspd = USBSPD_SPEED_HIGH;
break;
default:
dev_err(dev, "unsupported speed %d\n", speed);
return -EIO;
}
usbhs_write(priv, reg, UPPHUB(upphub) |
HUBPORT(hubport)|
USBSPD(usbspd));
return 0;
}
/*
* local functions
*/

25
drivers/usb/renesas_usbhs/common.h
View file

@ -90,6 +90,17 @@ struct usbhs_priv;
#define PIPE9TRN 0x00BA
#define PIPEATRE 0x00BC
#define PIPEATRN 0x00BE
#define DEVADD0 0x00D0 /* Device address n configuration */
#define DEVADD1 0x00D2
#define DEVADD2 0x00D4
#define DEVADD3 0x00D6
#define DEVADD4 0x00D8
#define DEVADD5 0x00DA
#define DEVADD6 0x00DC
#define DEVADD7 0x00DE
#define DEVADD8 0x00E0
#define DEVADD9 0x00E2
#define DEVADDA 0x00E4
/* SYSCFG */
#define SCKE (1 << 10) /* USB Module Clock Enable */
@ -206,6 +217,14 @@ struct usbhs_priv;
/* FRMNUM */
#define FRNM_MASK (0x7FF)
/* DEVADDn */
#define UPPHUB(x) (((x) & 0xF) << 11) /* HUB Register */
#define HUBPORT(x) (((x) & 0x7) << 8) /* HUB Port for Target Device */
#define USBSPD(x) (((x) & 0x3) << 6) /* Device Transfer Rate */
#define USBSPD_SPEED_LOW 0x1
#define USBSPD_SPEED_FULL 0x2
#define USBSPD_SPEED_HIGH 0x3
/*
* struct
*/
@ -280,6 +299,12 @@ int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable);
*/
int usbhs_frame_get_num(struct usbhs_priv *priv);
/*
* device config
*/
int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, u16 upphub,
u16 hubport, u16 speed);
/*
* data
*/