diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 101 | ||||
| -rw-r--r-- | drivers/usb/host/r8a66597.h | 2 |
2 files changed, 102 insertions, 1 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 713f4cf0b0dd..f1626e58c141 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1013,6 +1013,9 @@ static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); + + if (r8a66597->bus_suspended) + usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); } /* this function must be called with interrupt disabled */ @@ -1614,6 +1617,11 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, DTCHE, INTENB2); r8a66597_usb_disconnect(r8a66597, 1); } + if (mask2 & BCHG) { + r8a66597_write(r8a66597, ~BCHG, INTSTS2); + r8a66597_bclr(r8a66597, BCHGE, INTENB2); + usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); + } } if (mask1) { @@ -1629,6 +1637,12 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, DTCHE, INTENB1); r8a66597_usb_disconnect(r8a66597, 0); } + if (mask1 & BCHG) { + r8a66597_write(r8a66597, ~BCHG, INTSTS1); + r8a66597_bclr(r8a66597, BCHGE, INTENB1); + usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); + } + if (mask1 & SIGN) { r8a66597_write(r8a66597, ~SIGN, INTSTS1); status = get_urb_error(r8a66597, 0); @@ -2140,7 +2154,7 @@ static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (wValue) { case USB_PORT_FEAT_ENABLE: - rh->port &= (1 << USB_PORT_FEAT_POWER); + rh->port &= ~(1 << USB_PORT_FEAT_POWER); break; case USB_PORT_FEAT_SUSPEND: break; @@ -2212,6 +2226,68 @@ error: return ret; } +#if defined(CONFIG_PM) +static int r8a66597_bus_suspend(struct usb_hcd *hcd) +{ + struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); + int port; + + dbg("%s", __func__); + + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { + struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + unsigned long dvstctr_reg = get_dvstctr_reg(port); + + if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE))) + continue; + + dbg("suspend port = %d", port); + r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */ + rh->port |= 1 << USB_PORT_FEAT_SUSPEND; + + if (rh->dev->udev->do_remote_wakeup) { + msleep(3); /* waiting last SOF */ + r8a66597_bset(r8a66597, RWUPE, dvstctr_reg); + r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port)); + r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port)); + } + } + + r8a66597->bus_suspended = 1; + + return 0; +} + +static int r8a66597_bus_resume(struct usb_hcd *hcd) +{ + struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); + int port; + + dbg("%s", __func__); + + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { + struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + unsigned long dvstctr_reg = get_dvstctr_reg(port); + + if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND))) + continue; + + dbg("resume port = %d", port); + rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND); + rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND; + r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); + msleep(50); + r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); + } + + return 0; + +} +#else +#define r8a66597_bus_suspend NULL +#define r8a66597_bus_resume NULL +#endif + static struct hc_driver r8a66597_hc_driver = { .description = hcd_name, .hcd_priv_size = sizeof(struct r8a66597), @@ -2242,16 +2318,39 @@ static struct hc_driver r8a66597_hc_driver = { */ .hub_status_data = r8a66597_hub_status_data, .hub_control = r8a66597_hub_control, + .bus_suspend = r8a66597_bus_suspend, + .bus_resume = r8a66597_bus_resume, }; #if defined(CONFIG_PM) static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state) { + struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); + int port; + + dbg("%s", __func__); + + disable_controller(r8a66597); + + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) { + struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + + rh->port = 0x00000000; + } + return 0; } static int r8a66597_resume(struct platform_device *pdev) { + struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); + struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); + + dbg("%s", __func__); + + enable_controller(r8a66597); + usb_root_hub_lost_power(hcd->self.root_hub); + return 0; } #else /* if defined(CONFIG_PM) */ diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h index ecacde4d69b0..f49208f1bb74 100644 --- a/drivers/usb/host/r8a66597.h +++ b/drivers/usb/host/r8a66597.h @@ -504,6 +504,8 @@ struct r8a66597 { struct list_head child_device; unsigned long child_connect_map[4]; + + unsigned bus_suspended:1; }; static inline struct r8a66597 *hcd_to_r8a66597(struct usb_hcd *hcd) |
