@@ -31,6 +31,17 @@
#include "hid-lg.h"
#include "hid-ids.h"
+#define DFGT_REV_MAJ 0x13
+#define DFGT_REV_MIN 0x22
+#define DFP_REV_MAJ 0x11
+#define DFP_REV_MIN 0x06
+#define FFEX_REV_MAJ 0x21
+#define FFEX_REV_MIN 0x00
+#define G25_REV_MAJ 0x12
+#define G25_REV_MIN 0x22
+#define G27_REV_MAJ 0x12
+#define G27_REV_MIN 0x38
+
static const signed short lg4ff_wheel_effects[] = {
FF_CONSTANT,
FF_AUTOCENTER,
@@ -55,6 +66,46 @@ static const struct lg4ff_wheel lg4ff_devices[] = {
{USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270}
};
+struct lg4ff_native_cmd {
+ const __u8 cmd_num; /* Number of commands to send */
+ const __u8 cmd[];
+};
+
+struct lg4ff_usb_revision {
+ const __u16 rev_maj;
+ const __u16 rev_min;
+ const struct lg4ff_native_cmd *command;
+};
+
+static const struct lg4ff_native_cmd native_dfp = {
+ 1,
+ {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+static const struct lg4ff_native_cmd native_dfgt = {
+ 2,
+ {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */
+ 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* 2nd command */
+};
+
+static const struct lg4ff_native_cmd native_g25 = {
+ 1,
+ {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+static const struct lg4ff_native_cmd native_g27 = {
+ 2,
+ {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */
+ 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* 2nd command */
+};
+
+static const struct lg4ff_usb_revision lg4ff_revs[] = {
+ {DFGT_REV_MAJ, DFGT_REV_MIN, &native_dfgt}, /* Driving Force GT */
+ {DFP_REV_MAJ, DFP_REV_MIN, &native_dfp}, /* Driving Force Pro */
+ {G25_REV_MAJ, G25_REV_MIN, &native_g25}, /* G25 */
+ {G27_REV_MAJ, G27_REV_MIN, &native_g27}, /* G27 */
+};
+
static int hid_lg4ff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
@@ -100,6 +151,20 @@ static void hid_lg4ff_set_autocenter(struct input_dev
*dev, u16 magnitude)
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
+static void hid_lg4ff_switch_native(struct hid_device *hid, const struct
lg4ff_native_cmd *cmd)
+{
+ struct list_head *report_list = &hid-
>report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct
hid_report, list);
+ __u8 i, j;
+
+ j = 0;
+ while (j < 7*cmd->cmd_num) {
+ for (i = 0; i < 7; i++)
+ report->field[0]->value[i] = cmd->cmd[j++];
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+ }
As explained in the fisrt mail, this patch allows the lg4ff driver to switch wheels to the native mode. Since this is specific to Logitech wheels only, it's handled in hid-lg4ff rather than hid-lg. Signed-off-by: Michal Malý <madcatxster@gmail.com> --- +} int lg4ff_init(struct hid_device *hid) { @@ -108,7 +173,9 @@ int lg4ff_init(struct hid_device *hid) struct input_dev *dev = hidinput->input; struct hid_report *report; struct hid_field *field; + struct usb_device_descriptor *udesc = 0; int error, i, j; + __u16 bcdDevice, rev_maj, rev_min; /* Find the report to use */ if (list_empty(report_list)) { @@ -143,6 +210,28 @@ int lg4ff_init(struct hid_device *hid) return -1; } + /* Attempt to switch wheel to native mode when applicable */ + udesc = &(hid_to_usb_dev(hid)->descriptor); + if (!udesc) { + hid_err(hid, "NULL USB device descriptor\n"); + return -1; + } + bcdDevice = le16_to_cpu(udesc->bcdDevice); + rev_maj = bcdDevice >> 8; + rev_min = bcdDevice & 0xff; + + if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_WHEEL) { + dbg_hid("Generic wheel detected, can it do native?\n"); + dbg_hid("USB revision: %2x.%02x\n", rev_maj, rev_min); + + for (j = 0; j < ARRAY_SIZE(lg4ff_revs); j++) { + if (lg4ff_revs[j].rev_maj == rev_maj && lg4ff_revs[j].rev_min == rev_min) { + hid_lg4ff_switch_native(hid, lg4ff_revs[j].command); + hid_info(hid, "Switched to native mode\n"); + } + } + } + /* Set supported force feedback capabilities */ for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html