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present a different USB serial number depending on which USB class drivers are enabled. This is needed for Windows to correctly detect the device if a different set of drivers is active than on the previous plugin

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16511 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Gevaerts 2008-03-04 12:08:00 +00:00
parent 4fe9d7c2cd
commit 52df7addcf
1 changed files with 20 additions and 17 deletions
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37
firmware/usbstack/usb_core.c
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@ -201,11 +201,11 @@ static struct usb_string_descriptor __attribute__((aligned(2))) usb_string_iProd
static struct usb_string_descriptor __attribute__((aligned(2))) usb_string_iSerial =
{
82,
84,
USB_DT_STRING,
{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0',
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0',
'0','0','0','0','0','0','0','0'}
'0','0','0','0','0','0','0','0','0'}
};
/* Generic for all targets */
@ -255,11 +255,11 @@ static unsigned char __response_data[CACHEALIGN_UP(256)] CACHEALIGN_ATTR;
static struct usb_transfer_completion_event_data events[NUM_ENDPOINTS];
static short hex[16] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
#ifdef IPOD_ARCH
static void set_serial_descriptor(void)
{
static short hex[16] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
#ifdef IPOD_VIDEO
uint32_t* serial = (uint32_t*)(0x20004034);
#else
@ -268,7 +268,7 @@ static void set_serial_descriptor(void)
/* We need to convert from a little-endian 64-bit int
into a utf-16 string of hex characters */
short* p = &usb_string_iSerial.wString[23];
short* p = &usb_string_iSerial.wString[24];
uint32_t x;
int i,j;
@ -281,17 +281,14 @@ static void set_serial_descriptor(void)
x >>= 4;
}
}
usb_string_iSerial.bLength=50;
usb_string_iSerial.bLength=52;
}
#elif defined(HAVE_AS3514)
static void set_serial_descriptor(void)
{
static short hex[16] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
unsigned char serial[16];
/* Align 32 digits right in the 40-digit serial number */
short* p = usb_string_iSerial.wString;
short* p = &usb_string_iSerial.wString[1];
int i;
i2c_readbytes(AS3514_I2C_ADDR, 0x30, 0x10, serial);
@ -300,17 +297,14 @@ static void set_serial_descriptor(void)
*p++ = hex[(serial[i] >> 4) & 0xF];
*p++ = hex[(serial[i] >> 0) & 0xF];
}
usb_string_iSerial.bLength=66;
usb_string_iSerial.bLength=68;
}
#else
/* If we don't know the device serial number, use the one
* from the disk */
static void set_serial_descriptor(void)
{
static short hex[16] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
short* p = usb_string_iSerial.wString;
short* p = &usb_string_iSerial.wString[1];
unsigned short* identify = ata_get_identify();
unsigned short x;
int i;
@ -323,7 +317,7 @@ static void set_serial_descriptor(void)
*p++ = hex[(x >> 4) & 0xF];
*p++ = hex[(x >> 0) & 0xF];
}
usb_string_iSerial.bLength=82;
usb_string_iSerial.bLength=84;
}
#endif
@ -417,10 +411,19 @@ static void usb_core_control_request_handler(struct usb_ctrlrequest* req)
{
if(usb_state == DEFAULT) {
set_serial_descriptor();
int serial_function_id = 0;
#ifdef USB_STORAGE
if(usb_core_storage_enabled)
if(usb_core_storage_enabled) {
usb_request_exclusive_ata();
serial_function_id |= 1;
}
#endif
#ifdef USB_SERIAL
if(usb_core_serial_enabled)
serial_function_id |= 2;
#endif
usb_string_iSerial.wString[0] = hex[serial_function_id];
}
switch (req->bRequest) {