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V-USB: Add generic send_report() function (qmk#22323)
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@fauxpark
fauxpark committed Nov 26, 2023
1 parent 3a74fa5 commit cbf538a
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Showing 3 changed files with 53 additions and 92 deletions.
1 change: 0 additions & 1 deletion tmk_core/protocol/vusb/protocol.c
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Original file line number Diff line number Diff line change
Expand Up @@ -153,7 +153,6 @@ void protocol_task(void) {
if (usbConfiguration && usbInterruptIsReady()) {
keyboard_task();
}
vusb_transfer_keyboard();

#ifdef RAW_ENABLE
usbPoll();
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143 changes: 53 additions & 90 deletions tmk_core/protocol/vusb/vusb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -89,40 +89,51 @@ static uint8_t keyboard_led_state = 0;
uint8_t keyboard_idle = 0;
uint8_t keyboard_protocol = 1;

/* Keyboard report send buffer */
#define KBUF_SIZE 16
static report_keyboard_t kbuf[KBUF_SIZE];
static uint8_t kbuf_head = 0;
static uint8_t kbuf_tail = 0;

static report_keyboard_t keyboard_report_sent;

#define VUSB_TRANSFER_KEYBOARD_MAX_TRIES 10

/* transfer keyboard report from buffer */
void vusb_transfer_keyboard(void) {
for (int i = 0; i < VUSB_TRANSFER_KEYBOARD_MAX_TRIES; i++) {
if (usbInterruptIsReady()) {
if (kbuf_head != kbuf_tail) {
#ifndef KEYBOARD_SHARED_EP
usbSetInterrupt((void *)&kbuf[kbuf_tail], sizeof(report_keyboard_t));
#else
// Ugly hack! :(
usbSetInterrupt((void *)&kbuf[kbuf_tail], sizeof(report_keyboard_t) - 1);
while (!usbInterruptIsReady()) {
usbPoll();
static void send_report_fragment(uint8_t endpoint, void *data, size_t size) {
for (uint8_t retries = 5; retries > 0; retries--) {
switch (endpoint) {
case 1:
if (usbInterruptIsReady()) {
usbSetInterrupt(data, size);
return;
}
usbSetInterrupt((void *)(&(kbuf[kbuf_tail].keys[5])), 1);
#endif
kbuf_tail = (kbuf_tail + 1) % KBUF_SIZE;
if (debug_keyboard) {
dprintf("V-USB: kbuf[%d->%d](%02X)\n", kbuf_tail, kbuf_head, (kbuf_head < kbuf_tail) ? (KBUF_SIZE - kbuf_tail + kbuf_head) : (kbuf_head - kbuf_tail));
break;
case USB_CFG_EP3_NUMBER:
if (usbInterruptIsReady3()) {
usbSetInterrupt3(data, size);
return;
}
}
break;
break;
case USB_CFG_EP4_NUMBER:
if (usbInterruptIsReady4()) {
usbSetInterrupt4(data, size);
return;
}
break;
default:
return;
}

usbPoll();
wait_ms(1);
wait_ms(5);
}
}

static void send_report(uint8_t endpoint, void *report, size_t size) {
uint8_t *temp = (uint8_t *)report;

// Send as many full packets as possible
for (uint8_t i = 0; i < size / 8; i++) {
send_report_fragment(endpoint, temp, 8);
temp += 8;
}

// Send any data left over
uint8_t remainder = size % 8;
if (remainder) {
send_report_fragment(endpoint, temp, remainder);
}
}

Expand All @@ -141,18 +152,7 @@ void raw_hid_send(uint8_t *data, uint8_t length) {
return;
}

uint8_t *temp = data;
for (uint8_t i = 0; i < 4; i++) {
while (!usbInterruptIsReady4()) {
usbPoll();
}
usbSetInterrupt4(temp, 8);
temp += 8;
}
while (!usbInterruptIsReady4()) {
usbPoll();
}
usbSetInterrupt4(0, 0);
send_report(4, data, 32);
}

__attribute__((weak)) void raw_hid_receive(uint8_t *data, uint8_t length) {
Expand Down Expand Up @@ -181,19 +181,6 @@ int8_t sendchar(uint8_t c) {
return 0;
}

static inline bool usbSendData3(char *data, uint8_t len) {
uint8_t retries = 5;
while (!usbInterruptIsReady3()) {
if (!(retries--)) {
return false;
}
usbPoll();
}

usbSetInterrupt3((unsigned char *)data, len);
return true;
}

void console_task(void) {
if (!usbConfiguration) {
return;
Expand All @@ -210,16 +197,7 @@ void console_task(void) {
send_buf[send_buf_count++] = rbuf_dequeue();
}

char *temp = send_buf;
for (uint8_t i = 0; i < 4; i++) {
if (!usbSendData3(temp, 8)) {
break;
}
temp += 8;
}

usbSendData3(0, 0);
usbPoll();
send_report(3, send_buf, CONSOLE_BUFFER_SIZE);
}
#endif

Expand All @@ -243,17 +221,12 @@ static uint8_t keyboard_leds(void) {
}

static void send_keyboard(report_keyboard_t *report) {
uint8_t next = (kbuf_head + 1) % KBUF_SIZE;
if (next != kbuf_tail) {
kbuf[kbuf_head] = *report;
kbuf_head = next;
if (!keyboard_protocol) {
send_report(1, &report->mods, 8);
} else {
dprint("kbuf: full\n");
send_report(1, report, sizeof(report_keyboard_t));
}

// NOTE: send key strokes of Macro
usbPoll();
vusb_transfer_keyboard();
keyboard_report_sent = *report;
}

Expand All @@ -262,50 +235,40 @@ static void send_nkro(report_nkro_t *report) {
}

#ifndef KEYBOARD_SHARED_EP
# define usbInterruptIsReadyShared usbInterruptIsReady3
# define usbSetInterruptShared usbSetInterrupt3
# define MOUSE_IN_EPNUM 3
# define SHARED_IN_EPNUM 3
#else
# define usbInterruptIsReadyShared usbInterruptIsReady
# define usbSetInterruptShared usbSetInterrupt
# define MOUSE_IN_EPNUM 1
# define SHARED_IN_EPNUM 1
#endif

static void send_mouse(report_mouse_t *report) {
#ifdef MOUSE_ENABLE
if (usbInterruptIsReadyShared()) {
usbSetInterruptShared((void *)report, sizeof(report_mouse_t));
}
send_report(MOUSE_IN_EPNUM, report, sizeof(report_mouse_t));
#endif
}

static void send_extra(report_extra_t *report) {
#ifdef EXTRAKEY_ENABLE
if (usbInterruptIsReadyShared()) {
usbSetInterruptShared((void *)report, sizeof(report_extra_t));
}
send_report(SHARED_IN_EPNUM, report, sizeof(report_extra_t));
#endif
}

void send_joystick(report_joystick_t *report) {
#ifdef JOYSTICK_ENABLE
if (usbInterruptIsReadyShared()) {
usbSetInterruptShared((void *)report, sizeof(report_joystick_t));
}
send_report(SHARED_IN_EPNUM, report, sizeof(report_joystick_t));
#endif
}

void send_digitizer(report_digitizer_t *report) {
#ifdef DIGITIZER_ENABLE
if (usbInterruptIsReadyShared()) {
usbSetInterruptShared((void *)report, sizeof(report_digitizer_t));
}
send_report(SHARED_IN_EPNUM, report, sizeof(report_digitizer_t));
#endif
}

void send_programmable_button(report_programmable_button_t *report) {
#ifdef PROGRAMMABLE_BUTTON_ENABLE
if (usbInterruptIsReadyShared()) {
usbSetInterruptShared((void *)report, sizeof(report_programmable_button_t));
}
send_report(SHARED_IN_EPNUM, report, sizeof(report_programmable_button_t));
#endif
}

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1 change: 0 additions & 1 deletion tmk_core/protocol/vusb/vusb.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -121,4 +121,3 @@ typedef struct usbConfigurationDescriptor {
extern bool vusb_suspended;

host_driver_t *vusb_driver(void);
void vusb_transfer_keyboard(void);

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