@@ -724,6 +724,16 @@ config HID_NINTENDO
To compile this driver as a module, choose M here: the
module will be called hid-nintendo.
+config NINTENDO_FF
+ bool "Nintendo Switch controller force feedback support"
+ depends on HID_NINTENDO
+ select INPUT_FF_MEMLESS
+ help
+ Say Y here if you have a Nintendo Switch controller and want to enable
+ force feedback support for it. This works for both joy-cons and the pro
+ controller. For the pro controller, both rumble motors can be controlled
+ individually.
+
config HID_NTI
tristate "NTI keyboard adapters"
help
@@ -9,6 +9,7 @@
* https://gitlab.com/pjranki/joycon-linux-kernel (Peter Rankin)
* https://github.com/FrotBot/SwitchProConLinuxUSB
* https://github.com/MTCKC/ProconXInput
+ * https://github.com/Davidobot/BetterJoyForCemu
* hid-wiimote kernel hid driver
* hid-logitech-hidpp driver
* hid-sony driver
@@ -26,6 +27,7 @@
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
+#include <linux/jiffies.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/power_supply.h>
@@ -110,6 +112,120 @@ static const u16 JC_MAX_DPAD_MAG = 1;
static const u16 JC_DPAD_FUZZ /*= 0*/;
static const u16 JC_DPAD_FLAT /*= 0*/;
+/* frequency/amplitude tables for rumble */
+struct joycon_rumble_freq_data {
+ u16 high;
+ u8 low;
+ u16 freq; /* Hz*/
+};
+
+struct joycon_rumble_amp_data {
+ u8 high;
+ u16 low;
+ u16 amp;
+};
+
+/*
+ * These tables are from
+ * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md
+ */
+static const struct joycon_rumble_freq_data joycon_rumble_frequencies[] = {
+ /* high, low, freq */
+ { 0x0000, 0x01, 41 }, { 0x0000, 0x02, 42 }, { 0x0000, 0x03, 43 },
+ { 0x0000, 0x04, 44 }, { 0x0000, 0x05, 45 }, { 0x0000, 0x06, 46 },
+ { 0x0000, 0x07, 47 }, { 0x0000, 0x08, 48 }, { 0x0000, 0x09, 49 },
+ { 0x0000, 0x0A, 50 }, { 0x0000, 0x0B, 51 }, { 0x0000, 0x0C, 52 },
+ { 0x0000, 0x0D, 53 }, { 0x0000, 0x0E, 54 }, { 0x0000, 0x0F, 55 },
+ { 0x0000, 0x10, 57 }, { 0x0000, 0x11, 58 }, { 0x0000, 0x12, 59 },
+ { 0x0000, 0x13, 60 }, { 0x0000, 0x14, 62 }, { 0x0000, 0x15, 63 },
+ { 0x0000, 0x16, 64 }, { 0x0000, 0x17, 66 }, { 0x0000, 0x18, 67 },
+ { 0x0000, 0x19, 69 }, { 0x0000, 0x1A, 70 }, { 0x0000, 0x1B, 72 },
+ { 0x0000, 0x1C, 73 }, { 0x0000, 0x1D, 75 }, { 0x0000, 0x1e, 77 },
+ { 0x0000, 0x1f, 78 }, { 0x0000, 0x20, 80 }, { 0x0400, 0x21, 82 },
+ { 0x0800, 0x22, 84 }, { 0x0c00, 0x23, 85 }, { 0x1000, 0x24, 87 },
+ { 0x1400, 0x25, 89 }, { 0x1800, 0x26, 91 }, { 0x1c00, 0x27, 93 },
+ { 0x2000, 0x28, 95 }, { 0x2400, 0x29, 97 }, { 0x2800, 0x2a, 99 },
+ { 0x2c00, 0x2b, 102 }, { 0x3000, 0x2c, 104 }, { 0x3400, 0x2d, 106 },
+ { 0x3800, 0x2e, 108 }, { 0x3c00, 0x2f, 111 }, { 0x4000, 0x30, 113 },
+ { 0x4400, 0x31, 116 }, { 0x4800, 0x32, 118 }, { 0x4c00, 0x33, 121 },
+ { 0x5000, 0x34, 123 }, { 0x5400, 0x35, 126 }, { 0x5800, 0x36, 129 },
+ { 0x5c00, 0x37, 132 }, { 0x6000, 0x38, 135 }, { 0x6400, 0x39, 137 },
+ { 0x6800, 0x3a, 141 }, { 0x6c00, 0x3b, 144 }, { 0x7000, 0x3c, 147 },
+ { 0x7400, 0x3d, 150 }, { 0x7800, 0x3e, 153 }, { 0x7c00, 0x3f, 157 },
+ { 0x8000, 0x40, 160 }, { 0x8400, 0x41, 164 }, { 0x8800, 0x42, 167 },
+ { 0x8c00, 0x43, 171 }, { 0x9000, 0x44, 174 }, { 0x9400, 0x45, 178 },
+ { 0x9800, 0x46, 182 }, { 0x9c00, 0x47, 186 }, { 0xa000, 0x48, 190 },
+ { 0xa400, 0x49, 194 }, { 0xa800, 0x4a, 199 }, { 0xac00, 0x4b, 203 },
+ { 0xb000, 0x4c, 207 }, { 0xb400, 0x4d, 212 }, { 0xb800, 0x4e, 217 },
+ { 0xbc00, 0x4f, 221 }, { 0xc000, 0x50, 226 }, { 0xc400, 0x51, 231 },
+ { 0xc800, 0x52, 236 }, { 0xcc00, 0x53, 241 }, { 0xd000, 0x54, 247 },
+ { 0xd400, 0x55, 252 }, { 0xd800, 0x56, 258 }, { 0xdc00, 0x57, 263 },
+ { 0xe000, 0x58, 269 }, { 0xe400, 0x59, 275 }, { 0xe800, 0x5a, 281 },
+ { 0xec00, 0x5b, 287 }, { 0xf000, 0x5c, 293 }, { 0xf400, 0x5d, 300 },
+ { 0xf800, 0x5e, 306 }, { 0xfc00, 0x5f, 313 }, { 0x0001, 0x60, 320 },
+ { 0x0401, 0x61, 327 }, { 0x0801, 0x62, 334 }, { 0x0c01, 0x63, 341 },
+ { 0x1001, 0x64, 349 }, { 0x1401, 0x65, 357 }, { 0x1801, 0x66, 364 },
+ { 0x1c01, 0x67, 372 }, { 0x2001, 0x68, 381 }, { 0x2401, 0x69, 389 },
+ { 0x2801, 0x6a, 397 }, { 0x2c01, 0x6b, 406 }, { 0x3001, 0x6c, 415 },
+ { 0x3401, 0x6d, 424 }, { 0x3801, 0x6e, 433 }, { 0x3c01, 0x6f, 443 },
+ { 0x4001, 0x70, 453 }, { 0x4401, 0x71, 462 }, { 0x4801, 0x72, 473 },
+ { 0x4c01, 0x73, 483 }, { 0x5001, 0x74, 494 }, { 0x5401, 0x75, 504 },
+ { 0x5801, 0x76, 515 }, { 0x5c01, 0x77, 527 }, { 0x6001, 0x78, 538 },
+ { 0x6401, 0x79, 550 }, { 0x6801, 0x7a, 562 }, { 0x6c01, 0x7b, 574 },
+ { 0x7001, 0x7c, 587 }, { 0x7401, 0x7d, 600 }, { 0x7801, 0x7e, 613 },
+ { 0x7c01, 0x7f, 626 }, { 0x8001, 0x00, 640 }, { 0x8401, 0x00, 654 },
+ { 0x8801, 0x00, 668 }, { 0x8c01, 0x00, 683 }, { 0x9001, 0x00, 698 },
+ { 0x9401, 0x00, 713 }, { 0x9801, 0x00, 729 }, { 0x9c01, 0x00, 745 },
+ { 0xa001, 0x00, 761 }, { 0xa401, 0x00, 778 }, { 0xa801, 0x00, 795 },
+ { 0xac01, 0x00, 812 }, { 0xb001, 0x00, 830 }, { 0xb401, 0x00, 848 },
+ { 0xb801, 0x00, 867 }, { 0xbc01, 0x00, 886 }, { 0xc001, 0x00, 905 },
+ { 0xc401, 0x00, 925 }, { 0xc801, 0x00, 945 }, { 0xcc01, 0x00, 966 },
+ { 0xd001, 0x00, 987 }, { 0xd401, 0x00, 1009 }, { 0xd801, 0x00, 1031 },
+ { 0xdc01, 0x00, 1053 }, { 0xe001, 0x00, 1076 }, { 0xe401, 0x00, 1100 },
+ { 0xe801, 0x00, 1124 }, { 0xec01, 0x00, 1149 }, { 0xf001, 0x00, 1174 },
+ { 0xf401, 0x00, 1199 }, { 0xf801, 0x00, 1226 }, { 0xfc01, 0x00, 1253 }
+};
+
+#define joycon_max_rumble_amp (1003)
+static const struct joycon_rumble_amp_data joycon_rumble_amplitudes[] = {
+ /* high, low, amp */
+ { 0x00, 0x0040, 0 },
+ { 0x02, 0x8040, 10 }, { 0x04, 0x0041, 12 }, { 0x06, 0x8041, 14 },
+ { 0x08, 0x0042, 17 }, { 0x0a, 0x8042, 20 }, { 0x0c, 0x0043, 24 },
+ { 0x0e, 0x8043, 28 }, { 0x10, 0x0044, 33 }, { 0x12, 0x8044, 40 },
+ { 0x14, 0x0045, 47 }, { 0x16, 0x8045, 56 }, { 0x18, 0x0046, 67 },
+ { 0x1a, 0x8046, 80 }, { 0x1c, 0x0047, 95 }, { 0x1e, 0x8047, 112 },
+ { 0x20, 0x0048, 117 }, { 0x22, 0x8048, 123 }, { 0x24, 0x0049, 128 },
+ { 0x26, 0x8049, 134 }, { 0x28, 0x004a, 140 }, { 0x2a, 0x804a, 146 },
+ { 0x2c, 0x004b, 152 }, { 0x2e, 0x804b, 159 }, { 0x30, 0x004c, 166 },
+ { 0x32, 0x804c, 173 }, { 0x34, 0x004d, 181 }, { 0x36, 0x804d, 189 },
+ { 0x38, 0x004e, 198 }, { 0x3a, 0x804e, 206 }, { 0x3c, 0x004f, 215 },
+ { 0x3e, 0x804f, 225 }, { 0x40, 0x0050, 230 }, { 0x42, 0x8050, 235 },
+ { 0x44, 0x0051, 240 }, { 0x46, 0x8051, 245 }, { 0x48, 0x0052, 251 },
+ { 0x4a, 0x8052, 256 }, { 0x4c, 0x0053, 262 }, { 0x4e, 0x8053, 268 },
+ { 0x50, 0x0054, 273 }, { 0x52, 0x8054, 279 }, { 0x54, 0x0055, 286 },
+ { 0x56, 0x8055, 292 }, { 0x58, 0x0056, 298 }, { 0x5a, 0x8056, 305 },
+ { 0x5c, 0x0057, 311 }, { 0x5e, 0x8057, 318 }, { 0x60, 0x0058, 325 },
+ { 0x62, 0x8058, 332 }, { 0x64, 0x0059, 340 }, { 0x66, 0x8059, 347 },
+ { 0x68, 0x005a, 355 }, { 0x6a, 0x805a, 362 }, { 0x6c, 0x005b, 370 },
+ { 0x6e, 0x805b, 378 }, { 0x70, 0x005c, 387 }, { 0x72, 0x805c, 395 },
+ { 0x74, 0x005d, 404 }, { 0x76, 0x805d, 413 }, { 0x78, 0x005e, 422 },
+ { 0x7a, 0x805e, 431 }, { 0x7c, 0x005f, 440 }, { 0x7e, 0x805f, 450 },
+ { 0x80, 0x0060, 460 }, { 0x82, 0x8060, 470 }, { 0x84, 0x0061, 480 },
+ { 0x86, 0x8061, 491 }, { 0x88, 0x0062, 501 }, { 0x8a, 0x8062, 512 },
+ { 0x8c, 0x0063, 524 }, { 0x8e, 0x8063, 535 }, { 0x90, 0x0064, 547 },
+ { 0x92, 0x8064, 559 }, { 0x94, 0x0065, 571 }, { 0x96, 0x8065, 584 },
+ { 0x98, 0x0066, 596 }, { 0x9a, 0x8066, 609 }, { 0x9c, 0x0067, 623 },
+ { 0x9e, 0x8067, 636 }, { 0xa0, 0x0068, 650 }, { 0xa2, 0x8068, 665 },
+ { 0xa4, 0x0069, 679 }, { 0xa6, 0x8069, 694 }, { 0xa8, 0x006a, 709 },
+ { 0xaa, 0x806a, 725 }, { 0xac, 0x006b, 741 }, { 0xae, 0x806b, 757 },
+ { 0xb0, 0x006c, 773 }, { 0xb2, 0x806c, 790 }, { 0xb4, 0x006d, 808 },
+ { 0xb6, 0x806d, 825 }, { 0xb8, 0x006e, 843 }, { 0xba, 0x806e, 862 },
+ { 0xbc, 0x006f, 881 }, { 0xbe, 0x806f, 900 }, { 0xc0, 0x0070, 920 },
+ { 0xc2, 0x8070, 940 }, { 0xc4, 0x0071, 960 }, { 0xc6, 0x8071, 981 },
+ { 0xc8, 0x0072, joycon_max_rumble_amp }
+};
+
/* States for controller state machine */
enum joycon_ctlr_state {
JOYCON_CTLR_STATE_INIT,
@@ -187,6 +303,12 @@ struct joycon_input_report {
#define JC_MAX_RESP_SIZE (sizeof(struct joycon_input_report) + 35)
#define JC_NUM_LEDS 4
+#define JC_RUMBLE_DATA_SIZE 8
+#define JC_RUMBLE_QUEUE_SIZE 8
+
+static const u16 JC_RUMBLE_DFLT_LOW_FREQ = 160;
+static const u16 JC_RUMBLE_DFLT_HIGH_FREQ = 320;
+static const u16 JC_RUMBLE_PERIOD_MS = 50;
/* Each physical controller is associated with a joycon_ctlr struct */
struct joycon_ctlr {
@@ -219,6 +341,18 @@ struct joycon_ctlr {
u8 battery_capacity;
bool battery_charging;
bool host_powered;
+
+ /* rumble */
+ u8 rumble_data[JC_RUMBLE_QUEUE_SIZE][JC_RUMBLE_DATA_SIZE];
+ int rumble_queue_head;
+ int rumble_queue_tail;
+ struct workqueue_struct *rumble_queue;
+ struct work_struct rumble_worker;
+ unsigned int rumble_msecs;
+ u16 rumble_ll_freq;
+ u16 rumble_lh_freq;
+ u16 rumble_rl_freq;
+ u16 rumble_rh_freq;
};
static int __joycon_hid_send(struct hid_device *hdev, u8 *data, size_t len)
@@ -275,6 +409,12 @@ static int joycon_send_subcmd(struct joycon_ctlr *ctlr,
size_t data_len)
{
int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ memcpy(subcmd->rumble_data, ctlr->rumble_data[ctlr->rumble_queue_tail],
+ JC_RUMBLE_DATA_SIZE);
+ spin_unlock_irqrestore(&ctlr->lock, flags);
subcmd->output_id = JC_OUTPUT_RUMBLE_AND_SUBCMD;
subcmd->packet_num = ctlr->subcmd_num;
@@ -427,6 +567,19 @@ static int joycon_set_report_mode(struct joycon_ctlr *ctlr)
return joycon_send_subcmd(ctlr, req, 1);
}
+static int joycon_enable_rumble(struct joycon_ctlr *ctlr, bool enable)
+{
+ struct joycon_subcmd_request *req;
+ u8 buffer[sizeof(*req) + 1] = { 0 };
+
+ req = (struct joycon_subcmd_request *)buffer;
+ req->subcmd_id = JC_SUBCMD_ENABLE_VIBRATION;
+ req->data[0] = enable ? 0x01 : 0x00;
+
+ hid_dbg(ctlr->hdev, "%s rumble\n", enable ? "enabling" : "disabling");
+ return joycon_send_subcmd(ctlr, req, 1);
+}
+
static s32 joycon_map_stick_val(struct joycon_stick_cal *cal, s32 val)
{
s32 center = cal->center;
@@ -453,10 +606,15 @@ static void joycon_parse_report(struct joycon_ctlr *ctlr,
u8 tmp;
u32 btns;
u32 id = ctlr->hdev->product;
+ unsigned long msecs = jiffies_to_msecs(jiffies);
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ if (IS_ENABLED(CONFIG_NINTENDO_FF) && rep->vibrator_report &&
+ (msecs - ctlr->rumble_msecs) >= JC_RUMBLE_PERIOD_MS)
+ queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
/* Parse the battery status */
tmp = rep->bat_con;
- spin_lock_irqsave(&ctlr->lock, flags);
ctlr->host_powered = tmp & BIT(0);
ctlr->battery_charging = tmp & BIT(4);
tmp = tmp >> 5;
@@ -579,6 +737,161 @@ static void joycon_parse_report(struct joycon_ctlr *ctlr,
input_sync(dev);
}
+static void joycon_rumble_worker(struct work_struct *work)
+{
+ struct joycon_ctlr *ctlr = container_of(work, struct joycon_ctlr,
+ rumble_worker);
+ unsigned long flags;
+ bool again = true;
+ int ret;
+
+ while (again) {
+ mutex_lock(&ctlr->output_mutex);
+ ret = joycon_enable_rumble(ctlr, true);
+ mutex_unlock(&ctlr->output_mutex);
+ if (ret < 0)
+ hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret);
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
+ if (ctlr->rumble_queue_tail != ctlr->rumble_queue_head) {
+ if (++ctlr->rumble_queue_tail >= JC_RUMBLE_QUEUE_SIZE)
+ ctlr->rumble_queue_tail = 0;
+ } else {
+ again = false;
+ }
+ spin_unlock_irqrestore(&ctlr->lock, flags);
+ }
+}
+
+#if IS_ENABLED(CONFIG_NINTENDO_FF)
+static struct joycon_rumble_freq_data joycon_find_rumble_freq(u16 freq)
+{
+ const size_t length = ARRAY_SIZE(joycon_rumble_frequencies);
+ const struct joycon_rumble_freq_data *data = joycon_rumble_frequencies;
+ int i = 0;
+
+ if (freq > data[0].freq) {
+ for (i = 1; i < length - 1; i++) {
+ if (freq > data[i - 1].freq && freq <= data[i].freq)
+ break;
+ }
+ }
+
+ return data[i];
+}
+
+static struct joycon_rumble_amp_data joycon_find_rumble_amp(u16 amp)
+{
+ const size_t length = ARRAY_SIZE(joycon_rumble_amplitudes);
+ const struct joycon_rumble_amp_data *data = joycon_rumble_amplitudes;
+ int i = 0;
+
+ if (amp > data[0].amp) {
+ for (i = 1; i < length - 1; i++) {
+ if (amp > data[i - 1].amp && amp <= data[i].amp)
+ break;
+ }
+ }
+
+ return data[i];
+}
+
+static void joycon_encode_rumble(u8 *data, u16 freq_low, u16 freq_high, u16 amp)
+{
+ struct joycon_rumble_freq_data freq_data_low;
+ struct joycon_rumble_freq_data freq_data_high;
+ struct joycon_rumble_amp_data amp_data;
+
+ freq_data_low = joycon_find_rumble_freq(freq_low);
+ freq_data_high = joycon_find_rumble_freq(freq_high);
+ amp_data = joycon_find_rumble_amp(amp);
+
+ data[0] = (freq_data_high.high >> 8) & 0xFF;
+ data[1] = (freq_data_high.high & 0xFF) + amp_data.high;
+ data[2] = freq_data_low.low + ((amp_data.low >> 8) & 0xFF);
+ data[3] = amp_data.low & 0xFF;
+}
+
+static const u16 JOYCON_MAX_RUMBLE_HIGH_FREQ = 1253;
+static const u16 JOYCON_MIN_RUMBLE_HIGH_FREQ = 82;
+static const u16 JOYCON_MAX_RUMBLE_LOW_FREQ = 626;
+static const u16 JOYCON_MIN_RUMBLE_LOW_FREQ = 41;
+
+static void joycon_clamp_rumble_freqs(struct joycon_ctlr *ctlr)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ ctlr->rumble_ll_freq = clamp(ctlr->rumble_ll_freq,
+ JOYCON_MIN_RUMBLE_LOW_FREQ,
+ JOYCON_MAX_RUMBLE_LOW_FREQ);
+ ctlr->rumble_lh_freq = clamp(ctlr->rumble_lh_freq,
+ JOYCON_MIN_RUMBLE_HIGH_FREQ,
+ JOYCON_MAX_RUMBLE_HIGH_FREQ);
+ ctlr->rumble_rl_freq = clamp(ctlr->rumble_rl_freq,
+ JOYCON_MIN_RUMBLE_LOW_FREQ,
+ JOYCON_MAX_RUMBLE_LOW_FREQ);
+ ctlr->rumble_rh_freq = clamp(ctlr->rumble_rh_freq,
+ JOYCON_MIN_RUMBLE_HIGH_FREQ,
+ JOYCON_MAX_RUMBLE_HIGH_FREQ);
+ spin_unlock_irqrestore(&ctlr->lock, flags);
+}
+
+static int joycon_set_rumble(struct joycon_ctlr *ctlr, u16 amp_r, u16 amp_l,
+ bool schedule_now)
+{
+ u8 data[JC_RUMBLE_DATA_SIZE];
+ u16 amp;
+ u16 freq_r_low;
+ u16 freq_r_high;
+ u16 freq_l_low;
+ u16 freq_l_high;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ freq_r_low = ctlr->rumble_rl_freq;
+ freq_r_high = ctlr->rumble_rh_freq;
+ freq_l_low = ctlr->rumble_ll_freq;
+ freq_l_high = ctlr->rumble_lh_freq;
+ spin_unlock_irqrestore(&ctlr->lock, flags);
+
+ /* right joy-con */
+ amp = amp_r * (u32)joycon_max_rumble_amp / 65535;
+ joycon_encode_rumble(data + 4, freq_r_low, freq_r_high, amp);
+
+ /* left joy-con */
+ amp = amp_l * (u32)joycon_max_rumble_amp / 65535;
+ joycon_encode_rumble(data, freq_l_low, freq_l_high, amp);
+
+ spin_lock_irqsave(&ctlr->lock, flags);
+ if (++ctlr->rumble_queue_head >= JC_RUMBLE_QUEUE_SIZE)
+ ctlr->rumble_queue_head = 0;
+ memcpy(ctlr->rumble_data[ctlr->rumble_queue_head], data,
+ JC_RUMBLE_DATA_SIZE);
+ spin_unlock_irqrestore(&ctlr->lock, flags);
+
+ /* don't wait for the periodic send (reduces latency) */
+ if (schedule_now)
+ queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
+
+ return 0;
+}
+
+static int joycon_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct joycon_ctlr *ctlr = input_get_drvdata(dev);
+
+ if (effect->type != FF_RUMBLE)
+ return 0;
+
+ return joycon_set_rumble(ctlr,
+ effect->u.rumble.weak_magnitude,
+ effect->u.rumble.strong_magnitude,
+ true);
+}
+#endif /* IS_ENABLED(CONFIG_NINTENDO_FF) */
static const unsigned int joycon_button_inputs_l[] = {
BTN_SELECT, BTN_Z, BTN_THUMBL,
@@ -682,6 +995,19 @@ static int joycon_input_create(struct joycon_ctlr *ctlr)
input_set_capability(ctlr->input, EV_KEY, BTN_TL2);
}
+#if IS_ENABLED(CONFIG_NINTENDO_FF)
+ /* set up rumble */
+ input_set_capability(ctlr->input, EV_FF, FF_RUMBLE);
+ input_ff_create_memless(ctlr->input, NULL, joycon_play_effect);
+ ctlr->rumble_ll_freq = JC_RUMBLE_DFLT_LOW_FREQ;
+ ctlr->rumble_lh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
+ ctlr->rumble_rl_freq = JC_RUMBLE_DFLT_LOW_FREQ;
+ ctlr->rumble_rh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
+ joycon_clamp_rumble_freqs(ctlr);
+ joycon_set_rumble(ctlr, 0, 0, false);
+ ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
+#endif
+
ret = input_register_device(ctlr->input);
if (ret)
return ret;
@@ -1018,21 +1344,26 @@ static int nintendo_hid_probe(struct hid_device *hdev,
ctlr->hdev = hdev;
ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT;
+ ctlr->rumble_queue_head = JC_RUMBLE_QUEUE_SIZE - 1;
+ ctlr->rumble_queue_tail = 0;
hid_set_drvdata(hdev, ctlr);
mutex_init(&ctlr->output_mutex);
init_waitqueue_head(&ctlr->wait);
spin_lock_init(&ctlr->lock);
+ ctlr->rumble_queue = alloc_workqueue("hid-nintendo-rumble_wq",
+ WQ_FREEZABLE | WQ_MEM_RECLAIM, 0);
+ INIT_WORK(&ctlr->rumble_worker, joycon_rumble_worker);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "HID parse failed\n");
- goto err;
+ goto err_wq;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "HW start failed\n");
- goto err;
+ goto err_wq;
}
ret = hid_hw_open(hdev);
@@ -1085,6 +1416,13 @@ static int nintendo_hid_probe(struct hid_device *hdev,
goto err_mutex;
}
+ /* Enable rumble */
+ ret = joycon_enable_rumble(ctlr, true);
+ if (ret) {
+ hid_err(hdev, "Failed to enable rumble; ret=%d\n", ret);
+ goto err_mutex;
+ }
+
mutex_unlock(&ctlr->output_mutex);
/* Initialize the leds */
@@ -1118,6 +1456,8 @@ static int nintendo_hid_probe(struct hid_device *hdev,
hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
+err_wq:
+ destroy_workqueue(ctlr->rumble_queue);
err:
hid_err(hdev, "probe - fail = %d\n", ret);
return ret;
@@ -1125,7 +1465,10 @@ static int nintendo_hid_probe(struct hid_device *hdev,
static void nintendo_hid_remove(struct hid_device *hdev)
{
+ struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
+
hid_dbg(hdev, "remove\n");
+ destroy_workqueue(ctlr->rumble_queue);
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
This patch adds support for controller rumble. The ff_effect weak magnitude is associated with the pro controller's right motor (or with a right joy-con). The strong magnitude is associated with the pro's left motor (or a left joy-con). The rumble data is sent periodically (currently configured for every 50 milliseconds). If the controller receives no rumble data for too long a time period, it will stop vibrating. The data is also sent every time joycon_set_rumble is called to avoid latency of up to 50ms. Because the rumble subcommands are sent in a deferred workqueue (they can't be sent in the play_effect function due to the hid send sleeping), the effects are queued. This ensures that no rumble effect is missed due to them arriving in too quick of succession. Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com> --- drivers/hid/Kconfig | 10 ++ drivers/hid/hid-nintendo.c | 349 ++++++++++++++++++++++++++++++++++++- 2 files changed, 356 insertions(+), 3 deletions(-)