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hid2hci: support to hid2hci for recovering Dell BT devices after S3

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This commit is contained in:
Mario Limonciello 2009-07-22 00:33:27 +02:00 committed by Kay Sievers
parent be7fec4815
commit 5bacd2aadc
2 changed files with 49 additions and 1 deletions
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5
extras/hid2hci/70-hid2hci.rules
View File

@ -11,6 +11,11 @@ SUBSYSTEM!="usb", GOTO="hid2hci_end"
ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c", ATTRS{bmAttributes}=="e0", \
RUN+="hid2hci --method dell -v $attr{idVendor} -p $attr{idProduct} --mode hci"
# When a Dell device recovers from S3, the mouse child needs to be repoked
# Unfortunately the only event seen is the BT device disappearing, so the mouse
# device needs to be chased down on the USB bus.
ATTR{bDeviceClass}=="e0", ATTR{bDeviceSubClass}=="01", ATTR{bDeviceProtocol}=="01", ATTR{idVendor}=="413c", ATTR{bmAttributes}=="e0", IMPORT{parent}="ID_*", ENV{REMOVE_CMD}="hid2hci --method dell -v $env{ID_VENDOR_ID} -p $env{ID_MODEL_ID} --mode hci -s 02"
ENV{DEVTYPE}!="usb_device", GOTO="hid2hci_end"
# Logitech devices

45
extras/hid2hci/hid2hci.c
View File

@ -271,6 +271,36 @@ static int find_device(struct device_info* devinfo)
return 0;
}
static int find_resuscitated_device(struct device_info* devinfo, uint8_t bInterfaceProtocol)
{
int i,j,k,l;
struct usb_device *dev, *child;
struct usb_config_descriptor config;
struct usb_interface interface;
struct usb_interface_descriptor altsetting;
/* Using the base device, attempt to find the child with the
* matching bInterfaceProtocol */
dev = devinfo->dev;
for (i = 0; i < dev->num_children; i++) {
child = dev->children[i];
for (j = 0; j < child->descriptor.bNumConfigurations; j++) {
config = child->config[j];
for (k = 0; k < config.bNumInterfaces; k++) {
interface = config.interface[k];
for (l = 0; l < interface.num_altsetting; l++) {
altsetting = interface.altsetting[l];
if (altsetting.bInterfaceProtocol == bInterfaceProtocol) {
devinfo->dev = child;
return 1;
}
}
}
}
}
return 0;
}
static void usage(char* error)
{
if (error)
@ -289,6 +319,7 @@ static void usage(char* error)
"\t-v, --vendor= Vendor ID to act upon\n"
"\t-p, --product= Product ID to act upon\n"
"\t-m, --method= Method to use to switch [csr, logitech, dell]\n"
"\t-s, --resuscitate= Find the child device with this bInterfaceProtocol to run on \n"
"\n");
if (error)
exit(1);
@ -301,6 +332,7 @@ static const struct option main_options[] = {
{ "vendor", required_argument, 0, 'v' },
{ "product", required_argument, 0, 'p' },
{ "method", required_argument, 0, 'm' },
{ "resuscitate",required_argument, 0, 's' },
{ 0, 0, 0, 0 }
};
@ -309,8 +341,9 @@ int main(int argc, char *argv[])
struct device_info dev = { NULL, HCI, 0, 0 };
int opt, quiet = 0;
int (*method)(struct device_info *dev) = NULL;
uint8_t resuscitate = 0;
while ((opt = getopt_long(argc, argv, "+r:v:p:m:qh", main_options, NULL)) != -1) {
while ((opt = getopt_long(argc, argv, "+s:r:v:p:m:qh", main_options, NULL)) != -1) {
switch (opt) {
case 'r':
if (optarg && !strcmp(optarg, "hid"))
@ -339,6 +372,9 @@ int main(int argc, char *argv[])
case 'q':
quiet = 1;
break;
case 's':
sscanf(optarg, "%2hx", (short unsigned int*) &resuscitate);
break;
case 'h':
usage(NULL);
default:
@ -362,6 +398,13 @@ int main(int argc, char *argv[])
exit(1);
}
if (resuscitate && !find_resuscitated_device(&dev, resuscitate)) {
if (!quiet)
fprintf(stderr, "Device %04x:%04x was unable to resucitate any child devices.\n",
dev.vendor,dev.product);
exit(1);
}
if (!quiet)
printf("Attempting to switch device %04x:%04x to %s mode ",
dev.vendor, dev.product, dev.mode ? "HID" : "HCI");