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-rw-r--r--src/tmtspc/hid-tmtspc.c343
1 files changed, 343 insertions, 0 deletions
diff --git a/src/tmtspc/hid-tmtspc.c b/src/tmtspc/hid-tmtspc.c
new file mode 100644
index 0000000..a51ec01
--- /dev/null
+++ b/src/tmtspc/hid-tmtspc.c
@@ -0,0 +1,343 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/usb.h>
+#include <linux/hid.h>
+#include "../hid-tmff2.h"
+
+#define TMTSPC_MAX_EFFECTS 16
+#define TMTSPC_BUFFER_LENGTH 63
+
+static const u8 setup_0[64] = { 0x42, 0x01 };
+static const u8 setup_1[64] = { 0x0a, 0x04, 0x90, 0x03 };
+static const u8 setup_2[64] = { 0x0a, 0x04, 0x00, 0x0c };
+static const u8 setup_3[64] = { 0x0a, 0x04, 0x12, 0x10 };
+static const u8 setup_4[64] = { 0x0a, 0x04, 0x00, 0x06 };
+static const u8 setup_5[64] = { 0x0a, 0x04, 0x00, 0x0e };
+static const u8 setup_6[64] = { 0x0a, 0x04, 0x00, 0x0e, 0x01 };
+static const u8 *const setup_arr[] = { setup_0, setup_1, setup_2, setup_3, setup_4, setup_5, setup_6 };
+static const 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),
+ ARRAY_SIZE(setup_5),
+ ARRAY_SIZE(setup_6)
+};
+
+static const unsigned long tspc_params =
+ PARAM_SPRING_LEVEL
+ | PARAM_DAMPER_LEVEL
+ | PARAM_FRICTION_LEVEL
+ | PARAM_ALT_MODE
+ | PARAM_RANGE
+ | PARAM_GAIN
+ ;
+
+static const signed short tspc_effects[] = {
+ FF_CONSTANT,
+ FF_RAMP,
+ FF_SPRING,
+ FF_DAMPER,
+ FF_FRICTION,
+ FF_INERTIA,
+ FF_PERIODIC,
+ FF_SINE,
+ FF_TRIANGLE,
+ FF_SQUARE,
+ FF_SAW_UP,
+ FF_SAW_DOWN,
+ FF_AUTOCENTER,
+ FF_GAIN,
+ -1
+};
+
+/* TODO: sort through this stuff */
+static u8 tspc_pc_rdesc_fixed[] = {
+ 0x05, 0x01, /* Usage page (Generic Desktop) */
+ 0x09, 0x04, /* Usage (Joystick) */
+ 0xa1, 0x01, /* Collection (Application) */
+ 0x09, 0x01, /* Usage (Pointer) */
+ 0xa1, 0x00, /* Collection (Physical) */
+ 0x85, 0x07, /* Report ID (7) */
+ 0x09, 0x30, /* Usage (X) */
+ 0x15, 0x00, /* Logical minimum (0) */
+ 0x27, 0xff, 0xff, 0x00, 0x00, /* Logical maximum (65535) */
+ 0x35, 0x00, /* Physical minimum (0) */
+ 0x47, 0xff, 0xff, 0x00, 0x00, /* Physical maximum (65535) */
+ 0x75, 0x10, /* Report size (16) */
+ 0x95, 0x01, /* Report count (1) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x09, 0x35, /* Usage (Rz) (Brake) */
+ 0x26, 0xff, 0x03, /* Logical maximum (1023) */
+ 0x46, 0xff, 0x03, /* Physical maximum (1023) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x09, 0x32, /* Usage (Z) (Gas) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x09, 0x31, /* Usage (Y) (Clutch) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x81, 0x03, /* Input (Variable, Absolute, Constant) */
+ 0x05, 0x09, /* Usage page (Button) */
+ 0x19, 0x01, /* Usage minimum (1) */
+ 0x29, 0x0d, /* Usage maximum (13) */
+ 0x25, 0x01, /* Logical maximum (1) */
+ 0x45, 0x01, /* Physical maximum (1) */
+ 0x75, 0x01, /* Report size (1) */
+ 0x95, 0x0d, /* Report count (13) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x75, 0x0b, /* Report size (13) */
+ 0x95, 0x01, /* Report count (1) */
+ 0x81, 0x03, /* Usage (Variable, Absolute, Constant) */
+ 0x05, 0x01, /* Usage page (Generic Desktop) */
+ 0x09, 0x39, /* Usage (Hat Switch) */
+ 0x25, 0x07, /* Logical maximum (7) */
+ 0x46, 0x3b, 0x01, /* Physical maximum (315) */
+ 0x55, 0x00, /* Unit exponent (0) */
+ 0x65, 0x14, /* Unit (Eng Rot, Angular Pos) */
+ 0x75, 0x04, /* Report size (4) */
+ 0x81, 0x42, /* Input (Variable, Absolute, NullState) */
+ 0x65, 0x00, /* Unit (None) */
+ 0x81, 0x03, /* Input (Variable, Absolute, Constant) */
+ 0x85, 0x60, /* Report ID (96), prev 10 */
+ 0x06, 0x00, 0xff, /* Usage page (Vendor 1) */
+ 0x09, 0x60, /* Usage (96), prev 10 */
+ 0x75, 0x08, /* Report size (8) */
+ 0x95, 0x3f, /* Report count (63) */
+ 0x26, 0xff, 0x7f, /* Logical maximum (32767) */
+ 0x15, 0x00, /* Logical minimum (0) */
+ 0x46, 0xff, 0x7f, /* Physical maximum (32767) */
+ 0x36, 0x00, 0x80, /* Physical minimum (-32768) */
+ 0x91, 0x02, /* Output (Variable, Absolute) */
+ 0x85, 0x02, /* Report ID (2) */
+ 0x09, 0x02, /* Usage (2) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0x09, 0x14, /* Usage (20) */
+ 0x85, 0x14, /* Report ID (20) */
+ 0x81, 0x02, /* Input (Variable, Absolute) */
+ 0xc0, /* End collection */
+ 0xc0, /* End collection */
+};
+
+static int tspc_interrupts(struct t300rs_device_entry *tspc)
+{
+ u8 *send_buf = kmalloc(256, GFP_KERNEL);
+ struct usb_interface *usbif = to_usb_interface(tspc->hdev->dev.parent);
+ struct usb_host_endpoint *ep;
+ int ret, trans, b_ep, i;
+
+ if (!send_buf) {
+ hid_err(tspc->hdev, "failed allocating send buffer\n");
+ return -ENOMEM;
+ }
+
+ ep = &usbif->cur_altsetting->endpoint[1];
+ b_ep = ep->desc.bEndpointAddress;
+
+ for (i = 0; i < ARRAY_SIZE(setup_arr); ++i) {
+ memcpy(send_buf, setup_arr[i], setup_arr_sizes[i]);
+
+ ret = usb_interrupt_msg(tspc->usbdev,
+ usb_sndintpipe(tspc->usbdev, b_ep),
+ send_buf, setup_arr_sizes[i],
+ &trans,
+ USB_CTRL_SET_TIMEOUT);
+
+ if (ret) {
+ hid_err(tspc->hdev, "setup data couldn't be sent\n");
+ goto err;
+ }
+ }
+
+err:
+ kfree(send_buf);
+ return ret;
+}
+
+static int tspc_wheel_destroy(void *data)
+{
+ struct t300rs_device_entry *t300rs = data;
+
+ if (!t300rs)
+ return -ENODEV;
+
+ kfree(t300rs->send_buffer);
+ kfree(t300rs);
+ return 0;
+}
+
+static int tspc_set_range(void *data, uint16_t value)
+{
+ struct t300rs_device_entry *tspc = data;
+
+ if (value < 140) {
+ hid_info(tspc->hdev, "value %i too small, clamping to 140\n", value);
+ value = 140;
+ }
+
+ if (value > 1080) {
+ hid_info(tspc->hdev, "value %i too large, clamping to 1080\n", value);
+ value = 1080;
+ }
+
+ return t300rs_set_range(data, value);
+}
+
+static int tspc_send_open(struct t300rs_device_entry *tspc)
+{
+ int r1, r2;
+ tspc->send_buffer[0] = 0x01;
+ tspc->send_buffer[1] = 0x04;
+ if ((r1 = t300rs_send_int(tspc)))
+ return r1;
+
+ tspc->send_buffer[0] = 0x01;
+ tspc->send_buffer[1] = 0x05;
+ if ((r2 = t300rs_send_int(tspc)))
+ return r2;
+
+ return 0;
+}
+
+static int tspc_open(void *data, int open_mode)
+{
+ struct t300rs_device_entry *tspc = data;
+
+ if (!tspc)
+ return -ENODEV;
+
+ if (open_mode)
+ tspc_send_open(tspc);
+
+ return tspc->open(tspc->input_dev);
+}
+
+static int tspc_send_close(struct t300rs_device_entry *tspc)
+{
+ int r1, r2;
+ tspc->send_buffer[0] = 0x01;
+ tspc->send_buffer[1] = 0x05;
+ if ((r1 = t300rs_send_int(tspc)))
+ return r1;
+
+ tspc->send_buffer[0] = 0x01;
+ tspc->send_buffer[1] = 0x00;
+ if ((r2 = t300rs_send_int(tspc)))
+ return r2;
+
+ return 0;
+}
+
+static int tspc_close(void *data, int open_mode)
+{
+ struct t300rs_device_entry *tspc = data;
+
+ if (!tspc)
+ return -ENODEV;
+
+ if (open_mode)
+ tspc_send_close(tspc);
+
+ tspc->close(tspc->input_dev);
+ return 0;
+}
+
+static int tspc_wheel_init(struct tmff2_device_entry *tmff2, int open_mode)
+{
+ struct t300rs_device_entry *tspc = kzalloc(sizeof(struct t300rs_device_entry),
+ GFP_KERNEL);
+ struct list_head *report_list;
+ int ret;
+
+
+ if (!tspc) {
+ ret = -ENOMEM;
+ goto tspc_err;
+ }
+
+ tspc->hdev = tmff2->hdev;
+ tspc->input_dev = tmff2->input_dev;
+ tspc->usbdev = to_usb_device(tmff2->hdev->dev.parent->parent);
+ tspc->buffer_length = TMTSPC_BUFFER_LENGTH;
+
+ tspc->send_buffer = kzalloc(tspc->buffer_length, GFP_KERNEL);
+ if (!tspc->send_buffer) {
+ ret = -ENOMEM;
+ goto send_err;
+ }
+
+ report_list = &tspc->hdev->report_enum[HID_OUTPUT_REPORT].report_list;
+ tspc->report = list_entry(report_list->next, struct hid_report, list);
+ tspc->ff_field = tspc->report->field[0];
+
+ tspc->open = tspc->input_dev->open;
+ tspc->close = tspc->input_dev->close;
+
+ if ((ret = tspc_interrupts(tspc)))
+ goto interrupt_err;
+
+ /* everything went OK */
+ tmff2->data = tspc;
+ tmff2->params = tspc_params;
+ tmff2->max_effects = TMTSPC_MAX_EFFECTS;
+ memcpy(tmff2->supported_effects, tspc_effects, sizeof(tspc_effects));
+
+ if (!open_mode)
+ tspc_send_open(tspc);
+
+ hid_info(tspc->hdev, "force feedback for TS-PC\n");
+ return 0;
+
+interrupt_err:
+send_err:
+ kfree(tspc);
+tspc_err:
+ hid_err(tmff2->hdev, "failed initializing TS-PC\n");
+ return ret;
+}
+
+static __u8 *tspc_wheel_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ rdesc = tspc_pc_rdesc_fixed;
+ *rsize = sizeof(tspc_pc_rdesc_fixed);
+ return rdesc;
+}
+
+static ssize_t tspc_alt_mode_store(void *data, const char *buf, size_t count)
+{
+ struct t300rs_device_entry *tspc = data;
+ if (!tspc)
+ return -ENODEV;
+
+ /* blindly trusting that this works for now */
+ usb_control_msg(tspc->usbdev,
+ usb_sndctrlpipe(tspc->usbdev, 0),
+ 83, 0x41, 0xb, 0, 0, 0,
+ USB_CTRL_SET_TIMEOUT
+ );
+
+ return count;
+}
+
+int tspc_populate_api(struct tmff2_device_entry *tmff2)
+{
+ tmff2->play_effect = t300rs_play_effect;
+ tmff2->upload_effect = t300rs_upload_effect;
+ tmff2->update_effect = t300rs_update_effect;
+ tmff2->stop_effect = t300rs_stop_effect;
+
+ tmff2->set_gain = t300rs_set_gain;
+ tmff2->set_autocenter = t300rs_set_autocenter;
+ /* TS-PC has 1080 degree range, like T300RS 1080 */
+ tmff2->set_range = tspc_set_range;
+ tmff2->wheel_fixup = tspc_wheel_fixup;
+
+ tmff2->open = tspc_open;
+ tmff2->close = tspc_close;
+
+ tmff2->alt_mode_store = tspc_alt_mode_store;
+
+ tmff2->wheel_init = tspc_wheel_init;
+ tmff2->wheel_destroy = tspc_wheel_destroy;
+
+ return 0;
+}
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