460 lines
16 KiB
C
460 lines
16 KiB
C
#include "usbdrv.h"
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#include "usbconfig.h"
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#include "print.h"
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#include "usb_keycodes.h"
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#include "host.h"
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#include "host_vusb.h"
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#include "debug.h"
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static report_keyboard_t report0;
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static report_keyboard_t report1;
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report_keyboard_t *keyboard_report = &report0;
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report_keyboard_t *keyboard_report_prev = &report1;
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static uint8_t keyboard_leds = 0;
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static uchar idleRate = 0;
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uint8_t host_keyboard_leds(void)
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{
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return keyboard_leds;
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}
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/*------------------------------------------------------------------*
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* Keyboard report operations
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*------------------------------------------------------------------*/
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void host_add_key(uint8_t code)
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{
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int8_t i = 0;
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int8_t empty = -1;
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for (; i < REPORT_KEYS; i++) {
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if (keyboard_report_prev->keys[i] == code) {
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keyboard_report->keys[i] = code;
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break;
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}
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if (empty == -1 && keyboard_report_prev->keys[i] == KB_NO && keyboard_report->keys[i] == KB_NO) {
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empty = i;
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}
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}
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if (i == REPORT_KEYS && empty != -1) {
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keyboard_report->keys[empty] = code;
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}
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}
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void host_add_mod_bit(uint8_t mod)
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{
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keyboard_report->mods |= mod;
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}
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void host_set_mods(uint8_t mods)
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{
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keyboard_report->mods = mods;
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}
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void host_add_code(uint8_t code)
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{
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if (IS_MOD(code)) {
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host_add_mod_bit(MOD_BIT(code));
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} else {
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host_add_key(code);
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}
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}
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void host_swap_keyboard_report(void)
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{
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report_keyboard_t *tmp = keyboard_report_prev;
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keyboard_report_prev = keyboard_report;
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keyboard_report = tmp;
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}
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void host_clear_keyboard_report(void)
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{
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keyboard_report->mods = 0;
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for (int8_t i = 0; i < REPORT_KEYS; i++) {
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keyboard_report->keys[i] = 0;
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}
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}
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uint8_t host_has_anykey(void)
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{
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uint8_t cnt = 0;
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for (int i = 0; i < REPORT_KEYS; i++) {
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if (keyboard_report->keys[i])
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cnt++;
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}
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return cnt;
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}
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uint8_t *host_get_keys(void)
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{
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return keyboard_report->keys;
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}
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uint8_t host_get_mods(void)
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{
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return keyboard_report->mods;
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}
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/*------------------------------------------------------------------*
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* Keyboard report send buffer
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*------------------------------------------------------------------*/
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#define KBUF_SIZE 16
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static report_keyboard_t kbuf[KBUF_SIZE];
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static uint8_t kbuf_head = 0;
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static uint8_t kbuf_tail = 0;
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void host_vusb_keyboard_send(void)
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{
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while (usbInterruptIsReady() && kbuf_head != kbuf_tail) {
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usbSetInterrupt((void *)&kbuf[kbuf_tail], sizeof(report_keyboard_t));
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kbuf_tail = (kbuf_tail + 1) % KBUF_SIZE;
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}
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}
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void host_send_keyboard_report(void)
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{
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uint8_t next = (kbuf_head + 1) % KBUF_SIZE;
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if (next != kbuf_tail) {
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kbuf[kbuf_head] = *keyboard_report;
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kbuf_head = next;
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} else {
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debug("kbuf: full\n");
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}
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}
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void host_mouse_send(report_mouse_t *report)
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{
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if (usbInterruptIsReady3()) {
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usbSetInterrupt3((void *)report, sizeof(*report));
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} else {
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debug("Int3 not ready\n");
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}
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}
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/*------------------------------------------------------------------*
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* Request from host *
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*------------------------------------------------------------------*/
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static struct {
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uint16_t len;
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enum {
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NONE,
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SET_LED
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} kind;
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} last_req;
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usbMsgLen_t usbFunctionSetup(uchar data[8])
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{
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usbRequest_t *rq = (void *)data;
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if((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS){ /* class request type */
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if(rq->bRequest == USBRQ_HID_GET_REPORT){
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debug(" GET_REPORT");
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/* we only have one report type, so don't look at wValue */
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usbMsgPtr = (void *)keyboard_report;
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return sizeof(*keyboard_report);
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}else if(rq->bRequest == USBRQ_HID_GET_IDLE){
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debug(" GET_IDLE: ");
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debug_hex(idleRate);
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usbMsgPtr = &idleRate;
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return 1;
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}else if(rq->bRequest == USBRQ_HID_SET_IDLE){
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idleRate = rq->wValue.bytes[1];
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debug(" SET_IDLE: ");
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debug_hex(idleRate);
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}else if(rq->bRequest == USBRQ_HID_SET_REPORT){
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//debug(" SET_REPORT: ");
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if (rq->wValue.word == 0x0200 && rq->wIndex.word == 0) {
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last_req.kind = SET_LED;
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last_req.len = rq->wLength.word;
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}
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return USB_NO_MSG; // to get data in usbFunctionWrite
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}
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debug("\n");
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}else{
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debug("VENDOR\n");
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/* no vendor specific requests implemented */
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}
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return 0; /* default for not implemented requests: return no data back to host */
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}
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uchar usbFunctionWrite(uchar *data, uchar len)
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{
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if (last_req.len == 0) {
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return -1;
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}
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switch (last_req.kind) {
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case SET_LED:
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//debug("SET_LED\n");
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keyboard_leds = data[0];
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last_req.len = 0;
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return 1;
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break;
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case NONE:
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default:
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return -1;
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break;
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}
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return 1;
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}
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/*------------------------------------------------------------------*
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* Descriptors *
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*------------------------------------------------------------------*/
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/*
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* Report Descriptor for keyboard
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*
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* from an example in HID spec appendix
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*/
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PROGMEM uchar keyboard_hid_report[] = {
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0x05, 0x01, // Usage Page (Generic Desktop),
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0x09, 0x06, // Usage (Keyboard),
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0xA1, 0x01, // Collection (Application),
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0x75, 0x01, // Report Size (1),
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0x95, 0x08, // Report Count (8),
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0x05, 0x07, // Usage Page (Key Codes),
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0x19, 0xE0, // Usage Minimum (224),
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0x29, 0xE7, // Usage Maximum (231),
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0x15, 0x00, // Logical Minimum (0),
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0x25, 0x01, // Logical Maximum (1),
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0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
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0x95, 0x01, // Report Count (1),
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0x75, 0x08, // Report Size (8),
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0x81, 0x03, // Input (Constant), ;Reserved byte
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0x95, 0x05, // Report Count (5),
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0x75, 0x01, // Report Size (1),
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0x05, 0x08, // Usage Page (LEDs),
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0x19, 0x01, // Usage Minimum (1),
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0x29, 0x05, // Usage Maximum (5),
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0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
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0x95, 0x01, // Report Count (1),
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0x75, 0x03, // Report Size (3),
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0x91, 0x03, // Output (Constant), ;LED report padding
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0x95, 0x06, // Report Count (6),
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0x75, 0x08, // Report Size (8),
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0x15, 0x00, // Logical Minimum (0),
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0x25, 0xFF, // Logical Maximum(255),
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0x05, 0x07, // Usage Page (Key Codes),
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0x19, 0x00, // Usage Minimum (0),
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0x29, 0xFF, // Usage Maximum (255),
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0x81, 0x00, // Input (Data, Array),
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0xc0 // End Collection
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};
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/*
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* Report Descriptor for mouse
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*
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* Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
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* http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
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* http://www.keil.com/forum/15671/
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* http://www.microsoft.com/whdc/device/input/wheel.mspx
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*/
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PROGMEM uchar mouse_hid_report[] = {
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/* from HID 1.11 spec example */
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x02, // USAGE (Mouse)
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0xa1, 0x01, // COLLECTION (Application)
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0x09, 0x02, // USAGE (Mouse)
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0xa1, 0x02, // COLLECTION (Logical)
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0x09, 0x01, // USAGE (Pointer)
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0xa1, 0x00, // COLLECTION (Physical)
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// ------------------------------ Buttons
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0x05, 0x09, // USAGE_PAGE (Button)
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0x19, 0x01, // USAGE_MINIMUM (Button 1)
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0x29, 0x05, // USAGE_MAXIMUM (Button 5)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x75, 0x01, // REPORT_SIZE (1)
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0x95, 0x05, // REPORT_COUNT (5)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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// ------------------------------ Padding
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0x75, 0x03, // REPORT_SIZE (3)
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0x95, 0x01, // REPORT_COUNT (1)
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0x81, 0x03, // INPUT (Cnst,Var,Abs)
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// ------------------------------ X,Y position
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x30, // USAGE (X)
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0x09, 0x31, // USAGE (Y)
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0x15, 0x81, // LOGICAL_MINIMUM (-127)
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0x25, 0x7f, // LOGICAL_MAXIMUM (127)
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0x75, 0x08, // REPORT_SIZE (8)
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0x95, 0x02, // REPORT_COUNT (2)
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0x81, 0x06, // INPUT (Data,Var,Rel)
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0xa1, 0x02, // COLLECTION (Logical)
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// ------------------------------ Vertical wheel res multiplier
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0x09, 0x48, // USAGE (Resolution Multiplier)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x35, 0x01, // PHYSICAL_MINIMUM (1)
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0x45, 0x04, // PHYSICAL_MAXIMUM (4)
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0x75, 0x02, // REPORT_SIZE (2)
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0x95, 0x01, // REPORT_COUNT (1)
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0xa4, // PUSH
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0xb1, 0x02, // FEATURE (Data,Var,Abs)
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// ------------------------------ Vertical wheel
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0x09, 0x38, // USAGE (Wheel)
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0x15, 0x81, // LOGICAL_MINIMUM (-127)
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0x25, 0x7f, // LOGICAL_MAXIMUM (127)
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0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
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0x45, 0x00, // PHYSICAL_MAXIMUM (0)
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0x75, 0x08, // REPORT_SIZE (8)
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0x81, 0x06, // INPUT (Data,Var,Rel)
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0xc0, // END_COLLECTION
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0xa1, 0x02, // COLLECTION (Logical)
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// ------------------------------ Horizontal wheel res multiplier
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0x09, 0x48, // USAGE (Resolution Multiplier)
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0xb4, // POP
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0xb1, 0x02, // FEATURE (Data,Var,Abs)
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// ------------------------------ Padding for Feature report
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0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
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0x45, 0x00, // PHYSICAL_MAXIMUM (0)
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0x75, 0x04, // REPORT_SIZE (4)
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0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
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// ------------------------------ Horizontal wheel
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0x05, 0x0c, // USAGE_PAGE (Consumer Devices)
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0x0a, 0x38, 0x02, // USAGE (AC Pan)
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0x15, 0x81, // LOGICAL_MINIMUM (-127)
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0x25, 0x7f, // LOGICAL_MAXIMUM (127)
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0x75, 0x08, // REPORT_SIZE (8)
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0x81, 0x06, // INPUT (Data,Var,Rel)
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0xc0, // END_COLLECTION
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0xc0, // END_COLLECTION
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0xc0, // END_COLLECTION
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0xc0 // END_COLLECTION
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};
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/*
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* Descriptor for compite device: Keyboard + Mouse
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*
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* contains: device, interface, HID and endpoint descriptors
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*/
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#if USB_CFG_DESCR_PROPS_CONFIGURATION
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PROGMEM char usbDescriptorConfiguration[] = { /* USB configuration descriptor */
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9, /* sizeof(usbDescriptorConfiguration): length of descriptor in bytes */
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USBDESCR_CONFIG, /* descriptor type */
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9 + (9 + 9 + 7) + (9 + 9 + 7), 0,
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//18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT3 + 9, 0,
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/* total length of data returned (including inlined descriptors) */
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2, /* number of interfaces in this configuration */
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1, /* index of this configuration */
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0, /* configuration name string index */
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#if USB_CFG_IS_SELF_POWERED
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(1 << 7) | USBATTR_SELFPOWER, /* attributes */
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#else
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(1 << 7), /* attributes */
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#endif
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USB_CFG_MAX_BUS_POWER/2, /* max USB current in 2mA units */
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/*
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* Keyboard interface
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*/
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/* Interface descriptor */
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9, /* sizeof(usbDescrInterface): length of descriptor in bytes */
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USBDESCR_INTERFACE, /* descriptor type */
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0, /* index of this interface */
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0, /* alternate setting for this interface */
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USB_CFG_HAVE_INTRIN_ENDPOINT, /* endpoints excl 0: number of endpoint descriptors to follow */
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USB_CFG_INTERFACE_CLASS,
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USB_CFG_INTERFACE_SUBCLASS,
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USB_CFG_INTERFACE_PROTOCOL,
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0, /* string index for interface */
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/* HID descriptor */
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9, /* sizeof(usbDescrHID): length of descriptor in bytes */
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USBDESCR_HID, /* descriptor type: HID */
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0x01, 0x01, /* BCD representation of HID version */
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0x00, /* target country code */
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0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */
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0x22, /* descriptor type: report */
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sizeof(keyboard_hid_report), 0, /* total length of report descriptor */
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/* Endpoint descriptor */
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#if USB_CFG_HAVE_INTRIN_ENDPOINT /* endpoint descriptor for endpoint 1 */
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7, /* sizeof(usbDescrEndpoint) */
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USBDESCR_ENDPOINT, /* descriptor type = endpoint */
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(char)0x81, /* IN endpoint number 1 */
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0x03, /* attrib: Interrupt endpoint */
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8, 0, /* maximum packet size */
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USB_CFG_INTR_POLL_INTERVAL, /* in ms */
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#endif
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/*
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* Mouse interface
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*/
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/* Interface descriptor */
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9, /* sizeof(usbDescrInterface): length of descriptor in bytes */
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USBDESCR_INTERFACE, /* descriptor type */
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1, /* index of this interface */
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0, /* alternate setting for this interface */
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USB_CFG_HAVE_INTRIN_ENDPOINT3, /* endpoints excl 0: number of endpoint descriptors to follow */
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0x03, /* CLASS: HID */
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0, /* SUBCLASS: none */
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0, /* PROTOCOL: none */
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0, /* string index for interface */
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/* HID descriptor */
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9, /* sizeof(usbDescrHID): length of descriptor in bytes */
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USBDESCR_HID, /* descriptor type: HID */
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0x01, 0x01, /* BCD representation of HID version */
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0x00, /* target country code */
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0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */
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0x22, /* descriptor type: report */
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sizeof(mouse_hid_report), 0, /* total length of report descriptor */
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#if USB_CFG_HAVE_INTRIN_ENDPOINT3 /* endpoint descriptor for endpoint 3 */
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/* Endpoint descriptor */
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7, /* sizeof(usbDescrEndpoint) */
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USBDESCR_ENDPOINT, /* descriptor type = endpoint */
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(char)(0x80 | USB_CFG_EP3_NUMBER), /* IN endpoint number 3 */
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0x03, /* attrib: Interrupt endpoint */
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8, 0, /* maximum packet size */
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USB_CFG_INTR_POLL_INTERVAL, /* in ms */
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#endif
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};
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#endif
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USB_PUBLIC usbMsgLen_t usbFunctionDescriptor(struct usbRequest *rq)
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{
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usbMsgLen_t len = 0;
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debug("usbFunctionDescriptor: ");
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debug_hex(rq->bmRequestType); debug(" ");
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debug_hex(rq->bRequest); debug(" ");
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debug_hex16(rq->wValue.word); debug(" ");
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debug_hex16(rq->wIndex.word); debug(" ");
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debug_hex16(rq->wLength.word); debug("\n");
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switch (rq->wValue.bytes[1]) {
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#if USB_CFG_DESCR_PROPS_CONFIGURATION
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case USBDESCR_CONFIG:
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usbMsgPtr = (unsigned char *)usbDescriptorConfiguration;
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len = sizeof(usbDescriptorConfiguration);
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break;
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#endif
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case USBDESCR_HID:
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usbMsgPtr = (unsigned char *)(usbDescriptorConfiguration + 18);
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len = 9;
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break;
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case USBDESCR_HID_REPORT:
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/* interface index */
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switch (rq->wIndex.word) {
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case 0:
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usbMsgPtr = keyboard_hid_report;
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len = sizeof(keyboard_hid_report);
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break;
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case 1:
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usbMsgPtr = mouse_hid_report;
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len = sizeof(mouse_hid_report);
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break;
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}
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break;
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}
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debug("desc len: "); debug_hex(len); debug("\n");
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return len;
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}
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