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HID: playstation: add initial DualSense lightbar support. 

Provide initial support for the DualSense lightbar and configure it
with a default PlayStation blue color.

Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Reviewed-by: Barnabás Pőcze <pobrn@protonmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This commit is contained in:
Roderick Colenbrander 2021-02-16 14:26:35 -08:00 committed by Benjamin Tissoires
parent 50ab1ffd7c
commit 8e5198a12d
1 changed files with 65 additions and 0 deletions
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65
drivers/hid/hid-playstation.c
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@ -103,6 +103,10 @@ struct ps_calibration_data {
/* Flags for DualSense output report. */
#define DS_OUTPUT_VALID_FLAG0_COMPATIBLE_VIBRATION BIT(0)
#define DS_OUTPUT_VALID_FLAG0_HAPTICS_SELECT BIT(1)
#define DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE BIT(2)
#define DS_OUTPUT_VALID_FLAG1_RELEASE_LEDS BIT(3)
#define DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE BIT(1)
#define DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT BIT(1)
/* DualSense hardware limits */
#define DS_ACC_RES_PER_G 8192
@ -132,6 +136,12 @@ struct dualsense {
uint8_t motor_left;
uint8_t motor_right;
/* RGB lightbar */
bool update_lightbar;
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
struct work_struct output_worker;
void *output_report_dmabuf;
uint8_t output_seq; /* Sequence number for output report. */
@ -796,6 +806,15 @@ static void dualsense_output_worker(struct work_struct *work)
ds->update_rumble = false;
}
if (ds->update_lightbar) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE;
common->lightbar_red = ds->lightbar_red;
common->lightbar_green = ds->lightbar_green;
common->lightbar_blue = ds->lightbar_blue;
ds->update_lightbar = false;
}
spin_unlock_irqrestore(&ds->base.lock, flags);
dualsense_send_output_report(ds, &report);
@ -980,6 +999,41 @@ static int dualsense_play_effect(struct input_dev *dev, void *data, struct ff_ef
return 0;
}
static int dualsense_reset_leds(struct dualsense *ds)
{
struct dualsense_output_report report;
uint8_t *buf;
buf = kzalloc(sizeof(struct dualsense_output_report_bt), GFP_KERNEL);
if (!buf)
return -ENOMEM;
dualsense_init_output_report(ds, &report, buf);
/*
* On Bluetooth the DualSense outputs an animation on the lightbar
* during startup and maintains a color afterwards. We need to explicitly
* reconfigure the lightbar before we can do any programming later on.
* In USB the lightbar is not on by default, but redoing the setup there
* doesn't hurt.
*/
report.common->valid_flag2 = DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE;
report.common->lightbar_setup = DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT; /* Fade light out. */
dualsense_send_output_report(ds, &report);
kfree(buf);
return 0;
}
static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue)
{
ds->update_lightbar = true;
ds->lightbar_red = red;
ds->lightbar_green = green;
ds->lightbar_blue = blue;
schedule_work(&ds->output_worker);
}
static struct ps_device *dualsense_create(struct hid_device *hdev)
{
struct dualsense *ds;
@ -1057,6 +1111,17 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
if (ret)
goto err;
/*
* The hardware may have control over the LEDs (e.g. in Bluetooth on startup).
* Reset the LEDs (lightbar, mute, player leds), so we can control them
* from software.
*/
ret = dualsense_reset_leds(ds);
if (ret)
goto err;
dualsense_set_lightbar(ds, 0, 0, 128); /* blue */
/*
* Reporting hardware and firmware is important as there are frequent updates, which
* can change behavior.