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HID: playstation: add DualSense player LED support.

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The DualSense features 5 player LEDs below its touchpad, which are
meant as player id indications. The LEDs are configured with a
player ID determined by an ID allocator, which assign player ids
to ps_device instances.

This patch is a combination of the following original patches
minus use of LED framework APIs:
- HID: playstation: add DualSense player LEDs support.
- HID: playstation: DualSense set LEDs to default player id.

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 16:56:09 -08:00 committed by Benjamin Tissoires
parent c26e48b150
commit 949aaccda0
1 changed files with 82 additions and 1 deletions
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83
drivers/hid/hid-playstation.c
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@ -9,6 +9,7 @@
#include <linux/crc32.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/idr.h>
#include <linux/input/mt.h>
#include <linux/module.h>
@ -20,6 +21,8 @@
static DEFINE_MUTEX(ps_devices_lock);
static LIST_HEAD(ps_devices_list);
static DEFINE_IDA(ps_player_id_allocator);
#define HID_PLAYSTATION_VERSION_PATCH 0x8000
/* Base class for playstation devices. */
@ -28,6 +31,8 @@ struct ps_device {
struct hid_device *hdev;
spinlock_t lock;
uint32_t player_id;
struct power_supply_desc battery_desc;
struct power_supply *battery;
uint8_t battery_capacity;
@ -108,6 +113,7 @@ struct ps_calibration_data {
#define DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE 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_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE BIT(4)
#define DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE BIT(1)
#define DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE BIT(4)
#define DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT BIT(1)
@ -151,6 +157,11 @@ struct dualsense {
bool mic_muted;
bool last_btn_mic_state;
/* Player leds */
bool update_player_leds;
uint8_t player_leds_state;
struct led_classdev player_leds[5];
struct work_struct output_worker;
void *output_report_dmabuf;
uint8_t output_seq; /* Sequence number for output report. */
@ -309,6 +320,24 @@ static int ps_devices_list_remove(struct ps_device *dev)
return 0;
}
static int ps_device_set_player_id(struct ps_device *dev)
{
int ret = ida_alloc(&ps_player_id_allocator, GFP_KERNEL);
if (ret < 0)
return ret;
dev->player_id = ret;
return 0;
}
static void ps_device_release_player_id(struct ps_device *dev)
{
ida_free(&ps_player_id_allocator, dev->player_id);
dev->player_id = U32_MAX;
}
static struct input_dev *ps_allocate_input_dev(struct hid_device *hdev, const char *name_suffix)
{
struct input_dev *input_dev;
@ -824,6 +853,13 @@ static void dualsense_output_worker(struct work_struct *work)
ds->update_lightbar = false;
}
if (ds->update_player_leds) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE;
common->player_leds = ds->player_leds_state;
ds->update_player_leds = false;
}
if (ds->update_mic_mute) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_MIC_MUTE_LED_CONTROL_ENABLE;
common->mute_button_led = ds->mic_muted;
@ -1078,6 +1114,29 @@ static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t gr
schedule_work(&ds->output_worker);
}
static void dualsense_set_player_leds(struct dualsense *ds)
{
/*
* The DualSense controller has a row of 5 LEDs used for player ids.
* Behavior on the PlayStation 5 console is to center the player id
* across the LEDs, so e.g. player 1 would be "--x--" with x being 'on'.
* Follow a similar mapping here.
*/
static const int player_ids[5] = {
BIT(2),
BIT(3) | BIT(1),
BIT(4) | BIT(2) | BIT(0),
BIT(4) | BIT(3) | BIT(1) | BIT(0),
BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0)
};
uint8_t player_id = ds->base.player_id % ARRAY_SIZE(player_ids);
ds->update_player_leds = true;
ds->player_leds_state = player_ids[player_id];
schedule_work(&ds->output_worker);
}
static struct ps_device *dualsense_create(struct hid_device *hdev)
{
struct dualsense *ds;
@ -1166,6 +1225,15 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
dualsense_set_lightbar(ds, 0, 0, 128); /* blue */
ret = ps_device_set_player_id(ps_dev);
if (ret) {
hid_err(hdev, "Failed to assign player id for DualSense: %d\n", ret);
goto err;
}
/* Set player LEDs to our player id. */
dualsense_set_player_leds(ds);
/*
* Reporting hardware and firmware is important as there are frequent updates, which
* can change behavior.
@ -1243,6 +1311,7 @@ static void ps_remove(struct hid_device *hdev)
struct ps_device *dev = hid_get_drvdata(hdev);
ps_devices_list_remove(dev);
ps_device_release_player_id(dev);
hid_hw_close(hdev);
hid_hw_stop(hdev);
@ -1263,7 +1332,19 @@ static struct hid_driver ps_driver = {
.raw_event = ps_raw_event,
};
module_hid_driver(ps_driver);
static int __init ps_init(void)
{
return hid_register_driver(&ps_driver);
}
static void __exit ps_exit(void)
{
hid_unregister_driver(&ps_driver);
ida_destroy(&ps_player_id_allocator);
}
module_init(ps_init);
module_exit(ps_exit);
MODULE_AUTHOR("Sony Interactive Entertainment");
MODULE_DESCRIPTION("HID Driver for PlayStation peripherals.");