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roccat: add support for changing the DPI

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Again, this differs from the etekcity by not having to set the config
report first.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This commit is contained in:
Benjamin Tissoires
2015-09-13 14:34:11 -04:00
parent 86a40ba519
commit 84edfc23fc
1 changed files with 8 additions and 7 deletions
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15
src/driver-roccat.c
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@@ -65,7 +65,8 @@ struct roccat_settings_report {
uint8_t yres[5];
uint8_t padding1;
uint8_t report_rate;
uint8_t padding2[23];
uint8_t padding2[21];
uint16_t checksum;
// uint8_t padding2[4];
// uint8_t light;
// uint8_t light_heartbit;
@@ -784,9 +785,9 @@ roccat_write_resolution_dpi(struct ratbag_resolution *resolution,
uint8_t *buf;
int rc;
if (dpi_x < 50 || dpi_x > 8200 || dpi_x % 50)
if (dpi_x < 200 || dpi_x > 8200 || dpi_x % 50)
return -EINVAL;
if (dpi_y < 50 || dpi_y > 8200 || dpi_y % 50)
if (dpi_y < 200 || dpi_y > 8200 || dpi_y % 50)
return -EINVAL;
settings_report = &drv_data->settings[profile->index];
@@ -794,13 +795,13 @@ roccat_write_resolution_dpi(struct ratbag_resolution *resolution,
/* retrieve which resolution is asked to be changed */
index = resolution - profile->resolution.modes;
settings_report->x_sensitivity = 0x0a;
settings_report->y_sensitivity = 0x0a;
settings_report->xres[index] = dpi_x / 50;
settings_report->yres[index] = dpi_y / 50;
buf = (uint8_t*)settings_report;
roccat_set_config_profile(device, profile->index, ROCCAT_CONFIG_SETTINGS);
settings_report->checksum = roccat_compute_crc(buf, ROCCAT_REPORT_SIZE_SETTINGS);
rc = ratbag_hidraw_raw_request(device, ROCCAT_REPORT_ID_SETTINGS,
buf, ROCCAT_REPORT_SIZE_SETTINGS,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
@@ -900,5 +901,5 @@ struct ratbag_driver roccat_driver = {
.has_capability = roccat_has_capability,
.read_button = roccat_read_button,
.write_button = roccat_write_button,
// .write_resolution_dpi = roccat_write_resolution_dpi,
.write_resolution_dpi = roccat_write_resolution_dpi,
};