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Use status change pipe for hub hotplug detection

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-08-21 23:09:37 +02:00
parent f609c84a7f
commit ff62c48f5a
5 changed files with 167 additions and 32 deletions
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112
bus/usb/usbhub.c
View file

@ -177,16 +177,16 @@ grub_usb_add_hub (grub_usb_device_t dev)
grub_dprintf ("usb", "Hub port %d status: 0x%02x\n", i, status);
/* If connected, reset and enable the port. */
if (status & GRUB_USB_HUB_STATUS_CONNECTED)
if (status & GRUB_USB_HUB_STATUS_PORT_CONNECTED)
{
grub_usb_speed_t speed;
/* Determine the device speed. */
if (status & GRUB_USB_HUB_STATUS_LOWSPEED)
if (status & GRUB_USB_HUB_STATUS_PORT_LOWSPEED)
speed = GRUB_USB_SPEED_LOW;
else
{
if (status & GRUB_USB_HUB_STATUS_HIGHSPEED)
if (status & GRUB_USB_HUB_STATUS_PORT_HIGHSPEED)
speed = GRUB_USB_SPEED_HIGH;
else
speed = GRUB_USB_SPEED_FULL;
@ -231,7 +231,7 @@ grub_usb_add_hub (grub_usb_device_t dev)
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_CONNECTED,
GRUB_USB_HUB_FEATURE_C_PORT_CONNECTED,
i, 0, 0);
/* Just ignore the device if the Hub reports some error */
if (err)
@ -252,6 +252,25 @@ grub_usb_add_hub (grub_usb_device_t dev)
}
}
for (i = 0; i < dev->config[0].interf[0].descif->endpointcnt;
i++)
{
struct grub_usb_desc_endp *endp = NULL;
endp = &dev->config[0].interf[0].descendp[i];
if ((endp->endp_addr & 128) && grub_usb_get_ep_type(endp)
== GRUB_USB_EP_INTERRUPT)
{
dev->hub_endpoint = endp;
dev->hub_transfer
= grub_usb_bulk_read_background (dev, endp->endp_addr,
grub_min (endp->maxpacket,
sizeof (dev->statuschange)),
(char *) &dev->statuschange);
break;
}
}
return GRUB_ERR_NONE;
}
@ -341,6 +360,9 @@ detach_device (grub_usb_device_t dev)
return;
if (dev->descdev.class == GRUB_USB_CLASS_HUB)
{
if (dev->hub_transfer)
grub_usb_cancel_transfer (dev->hub_transfer);
for (i = 0; i < dev->nports; i++)
detach_device (dev->children[i]);
grub_free (dev->children);
@ -364,41 +386,105 @@ poll_nonroot_hub (grub_usb_device_t dev)
grub_uint64_t timeout;
grub_usb_device_t next_dev;
grub_usb_device_t *attached_devices = dev->children;
grub_uint8_t changed;
grub_size_t actual;
if (!dev->hub_transfer)
return;
err = grub_usb_check_transfer (dev->hub_transfer, &actual);
if (err == GRUB_USB_ERR_WAIT)
return;
changed = dev->statuschange;
dev->hub_transfer
= grub_usb_bulk_read_background (dev, dev->hub_endpoint->endp_addr,
grub_min (dev->hub_endpoint->maxpacket,
sizeof (dev->statuschange)),
(char *) &dev->statuschange);
if (err || actual == 0 || changed == 0)
return;
grub_dprintf ("usb", "statuschanged = %02x, err = %d, actual = %d\n",
changed, err, actual);
/* Iterate over the Hub ports. */
for (i = 1; i <= dev->nports; i++)
{
grub_uint32_t status;
if (!(changed & (1 << i)))
continue;
/* Get the port status. */
err = grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_IN
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_GET_STATUS,
0, i, sizeof (status), (char *) &status);
/* Just ignore the device if the Hub does not report the
status. */
if (err)
continue;
if (status & GRUB_USB_HUB_STATUS_C_CONNECTED)
/* FIXME: properly handle these conditions. */
if (status & GRUB_USB_HUB_STATUS_C_PORT_RESET)
grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_RESET, i, 0, 0);
if (status & GRUB_USB_HUB_STATUS_C_PORT_ENABLED)
grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_ENABLED, i, 0, 0);
if (status & GRUB_USB_HUB_STATUS_C_PORT_SUSPEND)
grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_SUSPEND, i, 0, 0);
if (status & GRUB_USB_HUB_STATUS_C_PORT_OVERCURRENT)
grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_OVERCURRENT, i, 0, 0);
if (!(status & GRUB_USB_HUB_STATUS_C_PORT_CONNECTED))
continue;
grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_CONNECTED, i, 0, 0);
if (status & GRUB_USB_HUB_STATUS_C_PORT_CONNECTED)
{
detach_device (attached_devices[i-1]);
attached_devices[i - 1] = NULL;
}
/* Connected and status of connection changed ? */
if ((status & GRUB_USB_HUB_STATUS_CONNECTED)
&& (status & GRUB_USB_HUB_STATUS_C_CONNECTED))
if ((status & GRUB_USB_HUB_STATUS_PORT_CONNECTED)
&& (status & GRUB_USB_HUB_STATUS_C_PORT_CONNECTED))
{
grub_usb_speed_t speed;
/* Determine the device speed. */
if (status & GRUB_USB_HUB_STATUS_LOWSPEED)
if (status & GRUB_USB_HUB_STATUS_PORT_LOWSPEED)
speed = GRUB_USB_SPEED_LOW;
else
{
if (status & GRUB_USB_HUB_STATUS_HIGHSPEED)
if (status & GRUB_USB_HUB_STATUS_PORT_HIGHSPEED)
speed = GRUB_USB_SPEED_HIGH;
else
speed = GRUB_USB_SPEED_FULL;
@ -442,7 +528,7 @@ poll_nonroot_hub (grub_usb_device_t dev)
| GRUB_USB_REQTYPE_CLASS
| GRUB_USB_REQTYPE_TARGET_OTHER),
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_CONNECTED,
GRUB_USB_HUB_FEATURE_C_PORT_CONNECTED,
i, 0, 0);
/* Just ignore the device if the Hub reports some error */
if (err)

8
bus/usb/usbtrans.c
View file

@ -392,6 +392,14 @@ grub_usb_bulk_read_background (grub_usb_device_t dev,
return transfer;
}
void
grub_usb_cancel_transfer (grub_usb_transfer_t transfer)
{
grub_usb_device_t dev = transfer->dev;
dev->controller.dev->cancel_transfer (&dev->controller, transfer);
grub_errno = GRUB_ERR_NONE;
}
grub_usb_err_t
grub_usb_bulk_read_extended (grub_usb_device_t dev,
int endpoint, grub_size_t size, char *data,

10
include/grub/usb.h
View file

@ -181,11 +181,19 @@ struct grub_usb_device
/* Used by libusb wrapper. Schedulded for removal. */
void *data;
/* Hub information. */
/* Array of children for a hub. */
grub_usb_device_t *children;
/* Number of hub ports. */
unsigned nports;
grub_usb_transfer_t hub_transfer;
grub_uint32_t statuschange;
struct grub_usb_desc_endp *hub_endpoint;
};
@ -271,5 +279,7 @@ grub_usb_bulk_read_background (grub_usb_device_t dev,
int endpoint, grub_size_t size, void *data);
grub_usb_err_t
grub_usb_check_transfer (grub_usb_transfer_t trans, grub_size_t *actual);
void
grub_usb_cancel_transfer (grub_usb_transfer_t trans);
#endif /* GRUB_USB_H */

57
include/grub/usbtrans.h
View file

@ -94,31 +94,50 @@ enum
GRUB_USB_REQTYPE_VENDOR_IN = GRUB_USB_REQTYPE_VENDOR | GRUB_USB_REQTYPE_IN
};
#define GRUB_USB_REQ_GET_STATUS 0x00
#define GRUB_USB_REQ_CLEAR_FEATURE 0x01
#define GRUB_USB_REQ_SET_FEATURE 0x03
#define GRUB_USB_REQ_SET_ADDRESS 0x05
#define GRUB_USB_REQ_GET_DESCRIPTOR 0x06
#define GRUB_USB_REQ_SET_DESCRIPTOR 0x07
#define GRUB_USB_REQ_GET_CONFIGURATION 0x08
#define GRUB_USB_REQ_SET_CONFIGURATION 0x09
#define GRUB_USB_REQ_GET_INTERFACE 0x0A
#define GRUB_USB_REQ_SET_INTERFACE 0x0B
#define GRUB_USB_REQ_SYNC_FRAME 0x0C
enum
{
GRUB_USB_REQ_GET_STATUS = 0x00,
GRUB_USB_REQ_CLEAR_FEATURE = 0x01,
GRUB_USB_REQ_SET_FEATURE = 0x03,
GRUB_USB_REQ_SET_ADDRESS = 0x05,
GRUB_USB_REQ_GET_DESCRIPTOR = 0x06,
GRUB_USB_REQ_SET_DESCRIPTOR = 0x07,
GRUB_USB_REQ_GET_CONFIGURATION = 0x08,
GRUB_USB_REQ_SET_CONFIGURATION = 0x09,
GRUB_USB_REQ_GET_INTERFACE = 0x0A,
GRUB_USB_REQ_SET_INTERFACE = 0x0B,
GRUB_USB_REQ_SYNC_FRAME = 0x0C
};
#define GRUB_USB_FEATURE_ENDP_HALT 0x00
#define GRUB_USB_FEATURE_DEV_REMOTE_WU 0x01
#define GRUB_USB_FEATURE_TEST_MODE 0x02
#define GRUB_USB_HUB_FEATURE_PORT_RESET 0x04
#define GRUB_USB_HUB_FEATURE_PORT_POWER 0x08
#define GRUB_USB_HUB_FEATURE_C_CONNECTED 0x10
enum
{
GRUB_USB_HUB_FEATURE_PORT_RESET = 0x04,
GRUB_USB_HUB_FEATURE_PORT_POWER = 0x08,
GRUB_USB_HUB_FEATURE_C_PORT_CONNECTED = 0x10,
GRUB_USB_HUB_FEATURE_C_PORT_ENABLED = 0x11,
GRUB_USB_HUB_FEATURE_C_PORT_SUSPEND = 0x12,
GRUB_USB_HUB_FEATURE_C_PORT_OVERCURRENT = 0x13,
GRUB_USB_HUB_FEATURE_C_PORT_RESET = 0x14
};
#define GRUB_USB_HUB_STATUS_CONNECTED (1 << 0)
#define GRUB_USB_HUB_STATUS_LOWSPEED (1 << 9)
#define GRUB_USB_HUB_STATUS_HIGHSPEED (1 << 10)
#define GRUB_USB_HUB_STATUS_C_CONNECTED (1 << 16)
#define GRUB_USB_HUB_STATUS_C_PORT_RESET (1 << 20)
enum
{
GRUB_USB_HUB_STATUS_PORT_CONNECTED = (1 << 0),
GRUB_USB_HUB_STATUS_PORT_ENABLED = (1 << 1),
GRUB_USB_HUB_STATUS_PORT_SUSPEND = (1 << 2),
GRUB_USB_HUB_STATUS_PORT_OVERCURRENT = (1 << 3),
GRUB_USB_HUB_STATUS_PORT_LOWSPEED = (1 << 9),
GRUB_USB_HUB_STATUS_PORT_HIGHSPEED = (1 << 10),
GRUB_USB_HUB_STATUS_C_PORT_CONNECTED = (1 << 16),
GRUB_USB_HUB_STATUS_C_PORT_ENABLED = (1 << 17),
GRUB_USB_HUB_STATUS_C_PORT_SUSPEND = (1 << 18),
GRUB_USB_HUB_STATUS_C_PORT_OVERCURRENT = (1 << 19),
GRUB_USB_HUB_STATUS_C_PORT_RESET = (1 << 20)
};
struct grub_usb_packet_setup
{

12
term/usb_keyboard.c
View file

@ -107,6 +107,9 @@ grub_usb_keyboard_detach (grub_usb_device_t usbdev,
if (data->usbdev != usbdev)
continue;
if (data->transfer)
grub_usb_cancel_transfer (data->transfer);
grub_term_unregister_input (&grub_usb_keyboards[i]);
grub_free ((char *) grub_usb_keyboards[i].name);
grub_usb_keyboards[i].name = NULL;
@ -351,9 +354,18 @@ GRUB_MOD_FINI(usb_keyboard)
for (i = 0; i < ARRAY_SIZE (grub_usb_keyboards); i++)
if (grub_usb_keyboards[i].data)
{
struct grub_usb_keyboard_data *data = grub_usb_keyboards[i].data;
if (!data)
continue;
if (data->transfer)
grub_usb_cancel_transfer (data->transfer);
grub_term_unregister_input (&grub_usb_keyboards[i]);
grub_free ((char *) grub_usb_keyboards[i].name);
grub_usb_keyboards[i].name = NULL;
grub_free (grub_usb_keyboards[i].data);
grub_usb_keyboards[i].data = 0;
}
grub_usb_unregister_attach_hook_class (&attach_hook);