diff options
Diffstat (limited to 'src/usb.c')
| -rw-r--r-- | src/usb.c | 32 |
1 files changed, 17 insertions, 15 deletions
@@ -366,7 +366,8 @@ static void get_langid_callback(struct libusb_transfer *transfer) } } -static int submit_vendor_specific(struct libusb_device_handle *handle, struct mode_user_data *user_data, libusb_transfer_cb_fn callback) { +static int submit_vendor_specific(struct libusb_device_handle *handle, struct mode_user_data *user_data, libusb_transfer_cb_fn callback) +{ struct libusb_transfer* ctrl_transfer = libusb_alloc_transfer(0); unsigned char* buffer = malloc(LIBUSB_CONTROL_SETUP_SIZE); uint8_t bRequestType = LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_IN | LIBUSB_RECIPIENT_DEVICE; @@ -378,7 +379,8 @@ static int submit_vendor_specific(struct libusb_device_handle *handle, struct mo return libusb_submit_transfer(ctrl_transfer); } -static void switch_mode_cb(struct libusb_transfer* transfer) { +static void switch_mode_cb(struct libusb_transfer* transfer) +{ struct mode_user_data* user_data = transfer->user_data; if(transfer->status != LIBUSB_TRANSFER_COMPLETED) { @@ -393,7 +395,8 @@ static void switch_mode_cb(struct libusb_transfer* transfer) { free(transfer->user_data); } -static void get_mode_cb(struct libusb_transfer* transfer) { +static void get_mode_cb(struct libusb_transfer* transfer) +{ struct mode_user_data* user_data = transfer->user_data; int res; @@ -406,19 +409,19 @@ static void get_mode_cb(struct libusb_transfer* transfer) { unsigned char *data = libusb_control_transfer_get_data(transfer); char* desired_mode = getenv(ENV_DEVICE_MODE); - if (!desired_mode) { + if(!desired_mode) { user_data->wIndex = 0x1; } - else if (!strncmp(desired_mode, "2", 1)) { + else if(!strncmp(desired_mode, "2", 1)) { user_data->wIndex = 0x2; } - else if (!strncmp(desired_mode, "3", 1)) { + else if(!strncmp(desired_mode, "3", 1)) { user_data->wIndex = 0x3; } // Response is 3:3:3 for initial mode, 5:3:3 otherwise. // In later commit, should infer the mode from available configurations and interfaces. usbmuxd_log(LL_INFO, "Received response %i:%i:%i for get_mode request for device %i-%i", data[0], data[1], data[2], user_data->bus, user_data->address); - if (user_data->wIndex > 1 && data[0] == 3 && data[1] == 3 && data[2] == 3) { + if(user_data->wIndex > 1 && data[0] == 3 && data[1] == 3 && data[2] == 3) { // 3:3:3 means the initial mode usbmuxd_log(LL_WARNING, "Switching device %i-%i mode to %i", user_data->bus, user_data->address, user_data->wIndex); @@ -426,7 +429,7 @@ static void get_mode_cb(struct libusb_transfer* transfer) { user_data->wValue = 0; user_data->wLength = 1; - if ((res = submit_vendor_specific(transfer->dev_handle, user_data, switch_mode_cb)) != 0) { + if((res = submit_vendor_specific(transfer->dev_handle, user_data, switch_mode_cb)) != 0) { usbmuxd_log(LL_WARNING, "Could not request to switch mode %i for device %i-%i (%i)", user_data->wIndex, user_data->bus, user_data->address, res); } } @@ -492,13 +495,13 @@ static int usb_device_add(libusb_device* dev) user_data->wLength = 4; user_data->timeout = 1000; - if (submit_vendor_specific(handle, user_data, get_mode_cb) != 0) { + if(submit_vendor_specific(handle, user_data, get_mode_cb) != 0) { usbmuxd_log(LL_WARNING, "Could not request current mode from device %d-%d", bus, address); } // Potentially, the rest of this function can be factored out and called from get_mode_callback/switch_mode_callback (where desired mode is known) int desired_config = devdesc.bNumConfigurations; - if (desired_config > 4) { - if (desired_config > 5) { + if(desired_config > 4) { + if(desired_config > 5) { usbmuxd_log(LL_ERROR, "Device %d-%d has more than 5 configurations, but usbmuxd doesn't support that. Choosing configuration 5 instead.", bus, address); desired_config = 5; } @@ -516,10 +519,9 @@ static int usb_device_add(libusb_device* dev) // Otherwize, 0 is expected to be of a different class. int usbmux_intf_index = config->bNumInterfaces == 3 ? 2 : config->bNumInterfaces == 4 ? 1 : 0; intf = &config->interface[usbmux_intf_index].altsetting[0]; - if ( - intf->bInterfaceClass != INTERFACE_CLASS || - intf->bInterfaceSubClass != INTERFACE_SUBCLASS || - intf->bInterfaceProtocol != INTERFACE_PROTOCOL) { + if(intf->bInterfaceClass != INTERFACE_CLASS || + intf->bInterfaceSubClass != INTERFACE_SUBCLASS || + intf->bInterfaceProtocol != INTERFACE_PROTOCOL) { usbmuxd_log(LL_WARNING, "Device %d-%d: can't find usbmux interface in configuration 5, choosing configuration 4 instead.", bus, address); desired_config = 4; break; |