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/**
* These interrupts are used to prevent a nasty crash when initializing the
* T300RS. Used in tminit_interrupts().
*/
u8 setup_0[] = { 0x42, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
u8 setup_1[] = { 0x0a, 0x04, 0x90, 0x03, 0x00, 0x00, 0x00, 0x00 };
u8 setup_2[] = { 0x0a, 0x04, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00 };
u8 setup_3[] = { 0x0a, 0x04, 0x12, 0x10, 0x00, 0x00, 0x00, 0x00 };
u8 setup_4[] = { 0x0a, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00 };
u8 *setup_arr[] = { setup_0, setup_1, setup_2, setup_3, setup_4 };
unsigned int setup_arr_sizes[] = {
ARRAY_SIZE(setup_0),
ARRAY_SIZE(setup_1),
ARRAY_SIZE(setup_2),
ARRAY_SIZE(setup_3),
ARRAY_SIZE(setup_4)
};
/**
* This struct contains for each type of
* Thrustmaster wheel
*
* Note: The values are stored in the CPU
* endianess, the USB protocols always use
* little endian; the macro cpu_to_le[BIT]()
* must be used when preparing USB packets
* and vice-versa
*/
struct th_wheel_info
{
uint16_t wheel_type;
/** See when the USB control out packet is prepared...
* @TODO The TMX seems to require to control codes to switch.
* Probabilly this field needs to be converted to an array,
*/
uint16_t switch_value;
char const *const wheel_name;
};
/**
* All wheel I know. TO BE TESTED
* I can't find of a clever way to store them, but I do
* not think a O(n) cycle for each wheel attached to the
* machine is too bad...
*/
static const struct th_wheel_info th_wheels_infos[] =
{
{0x0306, 0x0006, "Thrustmaster T150RS"},
{0x0206, 0x0005, "Thrustmaster T300RS"},
{0x0204, 0x0005, "Thrustmaster T300 Ferrari Alcantara Edition"},
{0x0002, 0x0002, "Thrustmaster T500RS"},
{0x0407, 0x0001, "Thrustmaster TMX"}
};
const uint8_t th_wheels_infos_length = 5;
/**
* This structs contains (in little endian) the response data
* of the wheel to the request 73
*
* A sufficient research to understand what each field does is not
* beign conducted yet. The position and meaning of fields are a
* just a very optimistic guess based on instinct....
*/
struct __packed tm_wheel_response
{
/**
* Seems to be the type of packet
* - 0x0049 if is data.a (15 bytes)
* - 0x0047 if is data.b (7 bytes)
*/
uint16_t type;
union
{
struct __packed
{
uint16_t field0;
uint16_t field1;
/**
* Seems to be the model code of the wheel
* Read table thrustmaster_wheels to values
*/
uint16_t model;
uint16_t field2;
uint16_t field3;
uint16_t field4;
uint16_t field5;
} a;
struct __packed
{
uint16_t field0;
uint16_t field1;
uint16_t model;
} b;
} data;
};
struct tm_wheel
{
struct usb_device *usb_dev;
struct urb *urb;
struct usb_ctrlrequest *model_request;
struct tm_wheel_response *response;
struct usb_ctrlrequest *change_request;
};
/**
* The control packet to send to wheel */
struct usb_ctrlrequest model_request =
{
.bRequestType = 0xc1,
.bRequest = 73,
.wValue = 0,
.wIndex = 0,
.wLength = cpu_to_le16(0x0010)
};
struct usb_ctrlrequest change_request =
{
.bRequestType = 0x41,
.bRequest = 83,
.wValue = 0, // Will be filled by the driver
.wIndex = 0,
.wLength = 0
};
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