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-rw-r--r--vusb/vusb.c462
1 files changed, 462 insertions, 0 deletions
diff --git a/vusb/vusb.c b/vusb/vusb.c
new file mode 100644
index 0000000000..638611f323
--- /dev/null
+++ b/vusb/vusb.c
@@ -0,0 +1,462 @@
+/*
+Copyright 2011 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdint.h>
+#include "usbdrv.h"
+#include "usbconfig.h"
+#include "host.h"
+#include "report.h"
+#include "print.h"
+#include "debug.h"
+#include "host_driver.h"
+#include "vusb.h"
+
+
+static uint8_t vusb_keyboard_leds = 0;
+static uint8_t vusb_idle_rate = 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;
+
+
+/* transfer keyboard report from buffer */
+void vusb_transfer_keyboard(void)
+{
+ if (usbInterruptIsReady()) {
+ if (kbuf_head != kbuf_tail) {
+ usbSetInterrupt((void *)&kbuf[kbuf_tail], sizeof(report_keyboard_t));
+ kbuf_tail = (kbuf_tail + 1) % KBUF_SIZE;
+ }
+ }
+}
+
+
+/*------------------------------------------------------------------*
+ * Host driver
+ *------------------------------------------------------------------*/
+static uint8_t keyboard_leds(void);
+static void send_keyboard(report_keyboard_t *report);
+static void send_mouse(report_mouse_t *report);
+static void send_system(uint16_t data);
+static void send_consumer(uint16_t data);
+
+static host_driver_t driver = {
+ keyboard_leds,
+ send_keyboard,
+ send_mouse,
+ send_system,
+ send_consumer
+};
+
+host_driver_t *vusb_driver(void)
+{
+ return &driver;
+}
+
+static uint8_t keyboard_leds(void) {
+ return vusb_keyboard_leds;
+}
+
+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;
+ } else {
+ debug("kbuf: full\n");
+ }
+}
+
+
+static void send_mouse(report_mouse_t *report)
+{
+ report->report_id = REPORT_ID_MOUSE;
+ if (usbInterruptIsReady3()) {
+ usbSetInterrupt3((void *)report, sizeof(*report));
+ }
+}
+
+static void send_system(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));
+ }
+}
+
+static void send_consumer(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));
+ }
+}
+
+
+
+/*------------------------------------------------------------------*
+ * 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(vusb_idle_rate);
+ usbMsgPtr = &vusb_idle_rate;
+ return 1;
+ }else if(rq->bRequest == USBRQ_HID_SET_IDLE){
+ vusb_idle_rate = rq->wValue.bytes[1];
+ debug("SET_IDLE: ");
+ debug_hex(vusb_idle_rate);
+ }else if(rq->bRequest == USBRQ_HID_SET_REPORT){
+ debug("SET_REPORT: ");
+ // Report Type: 0x02(Out)/ReportID: 0x00(none) && Interface: 0(keyboard)
+ if (rq->wValue.word == 0x0200 && rq->wIndex.word == 0) {
+ debug("SET_LED: ");
+ last_req.kind = SET_LED;
+ last_req.len = rq->wLength.word;
+ }
+ return USB_NO_MSG; // to get data in usbFunctionWrite
+ } else {
+ debug("UNKNOWN:");
+ }
+ }else{
+ debug("VENDOR:");
+ /* no vendor specific requests implemented */
+ }
+ debug("\n");
+ 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: ");
+ debug_hex(data[0]);
+ debug("\n");
+ vusb_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:
+ switch (rq->wValue.bytes[0]) {
+ case 0:
+ usbMsgPtr = (unsigned char *)(usbDescriptorConfiguration + 9 + 9);
+ len = 9;
+ break;
+ case 1:
+ usbMsgPtr = (unsigned char *)(usbDescriptorConfiguration + 9 + (9 + 9 + 7) + 9);
+ len = 9;
+ break;
+ }
+ 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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