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tmk_keyboard
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tmk_keyboard/vusb/host.c

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#include <stdint.h>
#include <avr/interrupt.h>
#include "usbdrv.h"
#include "usbconfig.h"
#include "print.h"
#include "usb_keycodes.h"
#include "host.h"
#include "host_vusb.h"
#include "debug.h"
static report_keyboard_t report0;
static report_keyboard_t report1;
report_keyboard_t *keyboard_report = &report0;
report_keyboard_t *keyboard_report_prev = &report1;
static uint8_t keyboard_leds = 0;
static uchar idleRate = 0;
uint8_t host_keyboard_leds(void)
{
return keyboard_leds;
}
/*------------------------------------------------------------------*
* Keyboard report operations
*------------------------------------------------------------------*/
void host_add_key(uint8_t code)
{
int8_t i = 0;
int8_t empty = -1;
for (; i < REPORT_KEYS; i++) {
if (keyboard_report_prev->keys[i] == code) {
keyboard_report->keys[i] = code;
break;
}
if (empty == -1 && keyboard_report_prev->keys[i] == KB_NO && keyboard_report->keys[i] == KB_NO) {
empty = i;
}
}
if (i == REPORT_KEYS && empty != -1) {
keyboard_report->keys[empty] = code;
}
}
void host_add_mod_bit(uint8_t mod)
{
keyboard_report->mods |= mod;
}
void host_set_mods(uint8_t mods)
{
keyboard_report->mods = mods;
}
void host_add_code(uint8_t code)
{
if (IS_MOD(code)) {
host_add_mod_bit(MOD_BIT(code));
} else {
host_add_key(code);
}
}
void host_swap_keyboard_report(void)
{
uint8_t sreg = SREG;
cli();
report_keyboard_t *tmp = keyboard_report_prev;
keyboard_report_prev = keyboard_report;
keyboard_report = tmp;
SREG = sreg;
}
void host_clear_keyboard_report(void)
{
keyboard_report->mods = 0;
for (int8_t i = 0; i < REPORT_KEYS; i++) {
keyboard_report->keys[i] = 0;
}
}
uint8_t host_has_anykey(void)
{
uint8_t cnt = 0;
for (int i = 0; i < REPORT_KEYS; i++) {
if (keyboard_report->keys[i])
cnt++;
}
return cnt;
}
uint8_t host_get_first_key(void)
{
#ifdef USB_NKRO_ENABLE
if (keyboard_nkro) {
uint8_t i = 0;
for (; i < REPORT_KEYS && !keyboard_report->keys[i]; i++)
;
return i<<3 | biton(keyboard_report->keys[i]);
}
#endif
return keyboard_report->keys[0];
}
/*------------------------------------------------------------------*
* 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;
void host_vusb_keyboard_send(void)
{
while (usbInterruptIsReady() && kbuf_head != kbuf_tail) {
usbSetInterrupt((void *)&kbuf[kbuf_tail], sizeof(report_keyboard_t));
kbuf_tail = (kbuf_tail + 1) % KBUF_SIZE;
}
}
void host_send_keyboard_report(void)
{
uint8_t next = (kbuf_head + 1) % KBUF_SIZE;
if (next != kbuf_tail) {
kbuf[kbuf_head] = *keyboard_report;
kbuf_head = next;
} else {
debug("kbuf: full\n");
}
}
#if defined(MOUSEKEY_ENABLE) || defined(PS2_MOUSE_ENABLE)
void host_mouse_send(report_mouse_t *report)
{
report->report_id = REPORT_ID_MOUSE;
if (usbInterruptIsReady3()) {
usbSetInterrupt3((void *)report, sizeof(*report));
} else {
debug("Int3 not ready\n");
}
}
#endif
#ifdef USB_EXTRA_ENABLE
void host_system_send(uint16_t data)
{
// Not need static?
static uint8_t report[] = { REPORT_ID_SYSTEM, 0, 0 };
report[1] = data&0xFF;
report[2] = (data>>8)&0xFF;
if (usbInterruptIsReady3()) {
usbSetInterrupt3((void *)&report, sizeof(report));
} else {
debug("Int3 not ready\n");
}
}
void host_consumer_send(uint16_t data)
{
static uint16_t last_data = 0;
if (data == last_data) return;
last_data = data;
// Not need static?
static uint8_t report[] = { REPORT_ID_CONSUMER, 0, 0 };
report[1] = data&0xFF;
report[2] = (data>>8)&0xFF;
if (usbInterruptIsReady3()) {
usbSetInterrupt3((void *)&report, sizeof(report));
} else {
debug("Int3 not ready\n");
}
}
#endif
/*------------------------------------------------------------------*
* Request from host *
*------------------------------------------------------------------*/
static struct {
uint16_t len;
enum {
NONE,
SET_LED
} kind;
} last_req;
usbMsgLen_t usbFunctionSetup(uchar data[8])
{
usbRequest_t *rq = (void *)data;
if((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS){ /* class request type */
if(rq->bRequest == USBRQ_HID_GET_REPORT){
debug(" GET_REPORT");
/* we only have one report type, so don't look at wValue */
usbMsgPtr = (void *)keyboard_report_prev;
return sizeof(*keyboard_report_prev);
}else if(rq->bRequest == USBRQ_HID_GET_IDLE){
debug(" GET_IDLE: ");
debug_hex(idleRate);
usbMsgPtr = &idleRate;
return 1;
}else if(rq->bRequest == USBRQ_HID_SET_IDLE){
idleRate = rq->wValue.bytes[1];
debug(" SET_IDLE: ");
debug_hex(idleRate);
}else if(rq->bRequest == USBRQ_HID_SET_REPORT){
//debug(" SET_REPORT: ");
if (rq->wValue.word == 0x0200 && rq->wIndex.word == 0) {
last_req.kind = SET_LED;
last_req.len = rq->wLength.word;
}
return USB_NO_MSG; // to get data in usbFunctionWrite
}
debug("\n");
}else{
debug("VENDOR\n");
/* no vendor specific requests implemented */
}
return 0; /* default for not implemented requests: return no data back to host */
}
uchar usbFunctionWrite(uchar *data, uchar len)
{
if (last_req.len == 0) {
return -1;
}
switch (last_req.kind) {
case SET_LED:
//debug("SET_LED\n");
keyboard_leds = data[0];
last_req.len = 0;
return 1;
break;
case NONE:
default:
return -1;
break;
}
return 1;
}
/*------------------------------------------------------------------*
* Descriptors *
*------------------------------------------------------------------*/
/*
* Report Descriptor for keyboard
*
* from an example in HID spec appendix
*/
PROGMEM uchar keyboard_hid_report[] = {
0x05, 0x01, // Usage Page (Generic Desktop),
0x09, 0x06, // Usage (Keyboard),
0xA1, 0x01, // Collection (Application),
0x75, 0x01, // Report Size (1),
0x95, 0x08, // Report Count (8),
0x05, 0x07, // Usage Page (Key Codes),
0x19, 0xE0, // Usage Minimum (224),
0x29, 0xE7, // Usage Maximum (231),
0x15, 0x00, // Logical Minimum (0),
0x25, 0x01, // Logical Maximum (1),
0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
0x95, 0x01, // Report Count (1),
0x75, 0x08, // Report Size (8),
0x81, 0x03, // Input (Constant), ;Reserved byte
0x95, 0x05, // Report Count (5),
0x75, 0x01, // Report Size (1),
0x05, 0x08, // Usage Page (LEDs),
0x19, 0x01, // Usage Minimum (1),
0x29, 0x05, // Usage Maximum (5),
0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
0x95, 0x01, // Report Count (1),
0x75, 0x03, // Report Size (3),
0x91, 0x03, // Output (Constant), ;LED report padding
0x95, 0x06, // Report Count (6),
0x75, 0x08, // Report Size (8),
0x15, 0x00, // Logical Minimum (0),
0x25, 0xFF, // Logical Maximum(255),
0x05, 0x07, // Usage Page (Key Codes),
0x19, 0x00, // Usage Minimum (0),
0x29, 0xFF, // Usage Maximum (255),
0x81, 0x00, // Input (Data, Array),
0xc0 // End Collection
};
/*
* Report Descriptor for mouse
*
* Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
* http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
* http://www.keil.com/forum/15671/
* http://www.microsoft.com/whdc/device/input/wheel.mspx
*/
PROGMEM uchar mouse_hid_report[] = {
/* mouse */
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x85, REPORT_ID_MOUSE, // REPORT_ID (1)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
// ---------------------------- Buttons
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x05, // USAGE_MAXIMUM (Button 5)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x05, // REPORT_COUNT (5)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x03, // REPORT_SIZE (3)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
// ---------------------------- X,Y position
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x06, // INPUT (Data,Var,Rel)
// ---------------------------- Vertical wheel
0x09, 0x38, // USAGE (Wheel)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
0x45, 0x00, // PHYSICAL_MAXIMUM (0)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x06, // INPUT (Data,Var,Rel)
// ---------------------------- Horizontal wheel
0x05, 0x0c, // USAGE_PAGE (Consumer Devices)
0x0a, 0x38, 0x02, // USAGE (AC Pan)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x06, // INPUT (Data,Var,Rel)
0xc0, // END_COLLECTION
0xc0, // END_COLLECTION
/* system control */
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x80, // USAGE (System Control)
0xa1, 0x01, // COLLECTION (Application)
0x85, REPORT_ID_SYSTEM, // REPORT_ID (2)
0x15, 0x01, // LOGICAL_MINIMUM (0x1)
0x25, 0xb7, // LOGICAL_MAXIMUM (0xb7)
0x19, 0x01, // USAGE_MINIMUM (0x1)
0x29, 0xb7, // USAGE_MAXIMUM (0xb7)
0x75, 0x10, // REPORT_SIZE (16)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x00, // INPUT (Data,Array,Abs)
0xc0, // END_COLLECTION
/* consumer */
0x05, 0x0c, // USAGE_PAGE (Consumer Devices)
0x09, 0x01, // USAGE (Consumer Control)
0xa1, 0x01, // COLLECTION (Application)
0x85, REPORT_ID_CONSUMER, // REPORT_ID (3)
0x15, 0x01, // LOGICAL_MINIMUM (0x1)
0x26, 0x9c, 0x02, // LOGICAL_MAXIMUM (0x29c)
0x19, 0x01, // USAGE_MINIMUM (0x1)
0x2a, 0x9c, 0x02, // USAGE_MAXIMUM (0x29c)
0x75, 0x10, // REPORT_SIZE (16)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x00, // INPUT (Data,Array,Abs)
0xc0, // END_COLLECTION
};
/*
* Descriptor for compite device: Keyboard + Mouse
*
* contains: device, interface, HID and endpoint descriptors
*/
#if USB_CFG_DESCR_PROPS_CONFIGURATION
PROGMEM char usbDescriptorConfiguration[] = { /* USB configuration descriptor */
9, /* sizeof(usbDescriptorConfiguration): length of descriptor in bytes */
USBDESCR_CONFIG, /* descriptor type */
9 + (9 + 9 + 7) + (9 + 9 + 7), 0,
//18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT3 + 9, 0,
/* total length of data returned (including inlined descriptors) */
2, /* number of interfaces in this configuration */
1, /* index of this configuration */
0, /* configuration name string index */
#if USB_CFG_IS_SELF_POWERED
(1 << 7) | USBATTR_SELFPOWER, /* attributes */
#else
(1 << 7), /* attributes */
#endif
USB_CFG_MAX_BUS_POWER/2, /* max USB current in 2mA units */
/*
* Keyboard interface
*/
/* Interface descriptor */
9, /* sizeof(usbDescrInterface): length of descriptor in bytes */
USBDESCR_INTERFACE, /* descriptor type */
0, /* index of this interface */
0, /* alternate setting for this interface */
USB_CFG_HAVE_INTRIN_ENDPOINT, /* endpoints excl 0: number of endpoint descriptors to follow */
USB_CFG_INTERFACE_CLASS,
USB_CFG_INTERFACE_SUBCLASS,
USB_CFG_INTERFACE_PROTOCOL,
0, /* string index for interface */
/* HID descriptor */
9, /* sizeof(usbDescrHID): length of descriptor in bytes */
USBDESCR_HID, /* descriptor type: HID */
0x01, 0x01, /* BCD representation of HID version */
0x00, /* target country code */
0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */
0x22, /* descriptor type: report */
sizeof(keyboard_hid_report), 0, /* total length of report descriptor */
/* Endpoint descriptor */
#if USB_CFG_HAVE_INTRIN_ENDPOINT /* endpoint descriptor for endpoint 1 */
7, /* sizeof(usbDescrEndpoint) */
USBDESCR_ENDPOINT, /* descriptor type = endpoint */
(char)0x81, /* IN endpoint number 1 */
0x03, /* attrib: Interrupt endpoint */
8, 0, /* maximum packet size */
USB_CFG_INTR_POLL_INTERVAL, /* in ms */
#endif
/*
* Mouse interface
*/
/* Interface descriptor */
9, /* sizeof(usbDescrInterface): length of descriptor in bytes */
USBDESCR_INTERFACE, /* descriptor type */
1, /* index of this interface */
0, /* alternate setting for this interface */
USB_CFG_HAVE_INTRIN_ENDPOINT3, /* endpoints excl 0: number of endpoint descriptors to follow */
0x03, /* CLASS: HID */
0, /* SUBCLASS: none */
0, /* PROTOCOL: none */
0, /* string index for interface */
/* HID descriptor */
9, /* sizeof(usbDescrHID): length of descriptor in bytes */
USBDESCR_HID, /* descriptor type: HID */
0x01, 0x01, /* BCD representation of HID version */
0x00, /* target country code */
0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */
0x22, /* descriptor type: report */
sizeof(mouse_hid_report), 0, /* total length of report descriptor */
#if USB_CFG_HAVE_INTRIN_ENDPOINT3 /* endpoint descriptor for endpoint 3 */
/* Endpoint descriptor */
7, /* sizeof(usbDescrEndpoint) */
USBDESCR_ENDPOINT, /* descriptor type = endpoint */
(char)(0x80 | USB_CFG_EP3_NUMBER), /* IN endpoint number 3 */
0x03, /* attrib: Interrupt endpoint */
8, 0, /* maximum packet size */
USB_CFG_INTR_POLL_INTERVAL, /* in ms */
#endif
};
#endif
USB_PUBLIC usbMsgLen_t usbFunctionDescriptor(struct usbRequest *rq)
{
usbMsgLen_t len = 0;
debug("usbFunctionDescriptor: ");
debug_hex(rq->bmRequestType); debug(" ");
debug_hex(rq->bRequest); debug(" ");
debug_hex16(rq->wValue.word); debug(" ");
debug_hex16(rq->wIndex.word); debug(" ");
debug_hex16(rq->wLength.word); debug("\n");
switch (rq->wValue.bytes[1]) {
#if USB_CFG_DESCR_PROPS_CONFIGURATION
case USBDESCR_CONFIG:
usbMsgPtr = (unsigned char *)usbDescriptorConfiguration;
len = sizeof(usbDescriptorConfiguration);
break;
#endif
case USBDESCR_HID:
usbMsgPtr = (unsigned char *)(usbDescriptorConfiguration + 18);
len = 9;
break;
case USBDESCR_HID_REPORT:
/* interface index */
switch (rq->wIndex.word) {
case 0:
usbMsgPtr = keyboard_hid_report;
len = sizeof(keyboard_hid_report);
break;
case 1:
usbMsgPtr = mouse_hid_report;
len = sizeof(mouse_hid_report);
break;
}
break;
}
debug("desc len: "); debug_hex(len); debug("\n");
return len;
}
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