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MTP: Add hard coded support to recognize a couple MTP music players for testing purposes.

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Change-Id: I2d09d78e83d13cfb3edff02372a6fc34b1e4d8b1
Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood
2010-07-26 20:33:02 -04:00
parent 7b5b20ef67
commit 86187098ce
1 changed files with 37 additions and 3 deletions
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40
media/mtp/MtpClient.cpp
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@@ -38,6 +38,16 @@
namespace android {
static bool isMtpDevice(uint16_t vendor, uint16_t product) {
// Sandisk Sansa Fuze
if (vendor == 0x0781 && product == 0x74c2)
return true;
// Samsung YP-Z5
if (vendor == 0x04e8 && product == 0x503c)
return true;
return false;
}
class MtpClientThread : public Thread {
private:
MtpClient* mClient;
@@ -128,8 +138,32 @@ bool MtpClient::usbDeviceAdded(const char *devname) {
LOGD("Found MTP device: \"%s\" \"%s\"\n", usb_device_get_manufacturer_name(device),
usb_device_get_product_name(device));
} else {
// not an MTP or PTP device
continue;
// look for special cased devices based on vendor/product ID
// we are doing this mainly for testing purposes
uint16_t vendor = usb_device_get_vendor_id(device);
uint16_t product = usb_device_get_product_id(device);
if (!isMtpDevice(vendor, product)) {
// not an MTP or PTP device
continue;
}
// request MTP OS string and descriptor
// some music players need to see this before entering MTP mode.
char buffer[256];
memset(buffer, 0, sizeof(buffer));
int ret = usb_device_send_control(device,
USB_DIR_IN|USB_RECIP_DEVICE|USB_TYPE_STANDARD,
USB_REQ_GET_DESCRIPTOR, (USB_DT_STRING << 8) | 0xEE,
0, sizeof(buffer), buffer);
printf("usb_device_send_control returned %d errno: %d\n", ret, errno);
if (ret > 0) {
printf("got MTP string %s\n", buffer);
ret = usb_device_send_control(device,
USB_DIR_IN|USB_RECIP_DEVICE|USB_TYPE_VENDOR, 1,
0, 4, sizeof(buffer), buffer);
printf("OS descriptor got %d\n", ret);
} else {
printf("no MTP string\n");
}
}
// if we got here, then we have a likely MTP or PTP device
@@ -165,7 +199,7 @@ bool MtpClient::usbDeviceAdded(const char *devname) {
struct usb_endpoint *ep_intr = usb_endpoint_open(device, ep_intr_desc);
if (usb_device_claim_interface(device, interface->bInterfaceNumber)) {
LOGE("usb_device_claim_interface failed\n");
LOGE("usb_device_claim_interface failed errno: %d\n", errno);
usb_endpoint_close(ep_in);
usb_endpoint_close(ep_out);
usb_endpoint_close(ep_intr);