--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#ifndef _TUSB_CONFIG_H_
+#define _TUSB_CONFIG_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------
+
+// defined by board.mk
+#define CFG_TUSB_MCU OPT_MCU_SAML22
+
+#define BOARD_DEVICE_RHPORT_NUM 0
+#define BOARD_DEVICE_RHPORT_SPEED OPT_MODE_FULL_SPEED
+#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | OPT_MODE_FULL_SPEED)
+
+#define CFG_TUSB_OS OPT_OS_NONE
+
+// Do not use TinyUSB debug, as our printf method prints stuff to the USB console.
+// if you must, modify _write in watch_private.c to use an alternate destination like a UART.
+#define CFG_TUSB_DEBUG 0
+
+/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
+ * Tinyusb use follows macros to declare transferring memory so that they can be put
+ * into those specific section.
+ * e.g
+ * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
+ * - CFG_TUSB_MEM_ALIGN : __attribute__ ((aligned(4)))
+ */
+#ifndef CFG_TUSB_MEM_SECTION
+#define CFG_TUSB_MEM_SECTION
+#endif
+
+#ifndef CFG_TUSB_MEM_ALIGN
+#define CFG_TUSB_MEM_ALIGN __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------
+
+#ifndef CFG_TUD_ENDPOINT0_SIZE
+#define CFG_TUD_ENDPOINT0_SIZE 64
+#endif
+
+//------------- CLASS -------------//
+#define CFG_TUD_CDC 1
+#define CFG_TUD_MSC 0
+#define CFG_TUD_HID 0
+#define CFG_TUD_MIDI 0
+#define CFG_TUD_VENDOR 0
+
+// CDC FIFO size of TX and RX
+#define CFG_TUD_CDC_RX_BUFSIZE (64)
+#define CFG_TUD_CDC_TX_BUFSIZE (64)
+
+// CDC Endpoint transfer buffer size, more is faster
+#define CFG_TUD_CDC_EP_BUFSIZE (64)
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CONFIG_H_ */
* SOFTWARE.
*/
+#include "tusb.h"
+
void _watch_init() {
// disable the LED pin (it may have been enabled by the bootloader)
watch_disable_digital_output(RED);
a2_callback = NULL;
a4_callback = NULL;
}
+
+void _watch_enable_usb() {
+ // disable USB, just in case.
+ hri_usb_clear_CTRLA_ENABLE_bit(USB);
+
+ // reset flags and disable DFLL
+ OSCCTRL->INTFLAG.reg = OSCCTRL_INTFLAG_DFLLRDY;
+ OSCCTRL->DFLLCTRL.reg = 0;
+ while (!(OSCCTRL->STATUS.reg & OSCCTRL_STATUS_DFLLRDY));
+
+ // set the coarse and fine values to speed up frequency lock.
+ uint32_t coarse =(*((uint32_t *)NVMCTRL_OTP5)) >> 26;
+ OSCCTRL->DFLLVAL.reg = OSCCTRL_DFLLVAL_COARSE(coarse) |
+ OSCCTRL_DFLLVAL_FINE(0x200);
+ // set coarse and fine steps, and multiplier (48 MHz = 32768 Hz * 1465)
+ OSCCTRL->DFLLMUL.reg = OSCCTRL_DFLLMUL_CSTEP( 1 ) |
+ OSCCTRL_DFLLMUL_FSTEP( 1 ) |
+ OSCCTRL_DFLLMUL_MUL( 1465 );
+ // set closed loop mode, chill cycle disable and USB clock recovery mode, and enable the DFLL.
+ OSCCTRL->DFLLCTRL.reg = OSCCTRL_DFLLCTRL_MODE | OSCCTRL_DFLLCTRL_CCDIS | OSCCTRL_DFLLCTRL_ONDEMAND | OSCCTRL_DFLLCTRL_RUNSTDBY | OSCCTRL_DFLLCTRL_USBCRM | OSCCTRL_DFLLCTRL_ENABLE;
+ while (!(OSCCTRL->STATUS.reg & OSCCTRL_STATUS_DFLLRDY));
+
+ // assign DFLL to GCLK1
+ GCLK->GENCTRL[1].reg = GCLK_GENCTRL_SRC(GCLK_GENCTRL_SRC_DFLL48M) | GCLK_GENCTRL_DIV(1) | GCLK_GENCTRL_GENEN;// | GCLK_GENCTRL_OE;
+ while (GCLK->SYNCBUSY.bit.GENCTRL1);
+
+ // assign GCLK1 to USB
+ hri_gclk_write_PCHCTRL_reg(GCLK, USB_GCLK_ID, GCLK_PCHCTRL_GEN_GCLK1_Val | GCLK_PCHCTRL_CHEN);
+ hri_mclk_set_AHBMASK_USB_bit(MCLK);
+ hri_mclk_set_APBBMASK_USB_bit(MCLK);
+
+ // USB Pin Init
+ gpio_set_pin_direction(PIN_PA24, GPIO_DIRECTION_OUT);
+ gpio_set_pin_level(PIN_PA24, false);
+ gpio_set_pin_pull_mode(PIN_PA24, GPIO_PULL_OFF);
+ gpio_set_pin_direction(PIN_PA25, GPIO_DIRECTION_OUT);
+ gpio_set_pin_level(PIN_PA25, false);
+ gpio_set_pin_pull_mode(PIN_PA25, GPIO_PULL_OFF);
+
+ gpio_set_pin_function(PIN_PA24, PINMUX_PA24G_USB_DM);
+ gpio_set_pin_function(PIN_PA25, PINMUX_PA25G_USB_DP);
+
+ tusb_init();
+}
+
+// this function ends up getting called by printf to log stuff to the USB console.
+int _write(int file, char *ptr, int len) {
+ (void)file;
+ if (hri_usbdevice_get_CTRLA_ENABLE_bit(USB)) {
+ tud_cdc_n_write(0, (void const*)ptr, len);
+ return len;
+ }
+
+ return 0;
+}
+
+// this method could be overridden to read stuff from the USB console? but no need rn.
+int _read() {
+ return 0;
+}
+
+void USB_Handler(void) {
+ tud_int_handler(0);
+}
+
+
+// USB Descriptors and tinyUSB callbacks follow.
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include "tusb.h"
+
+/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
+ * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
+ *
+ * Auto ProductID layout's Bitmap:
+ * [MSB] HID | MSC | CDC [LSB]
+ */
+#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) )
+#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
+ _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) )
+
+//--------------------------------------------------------------------+
+// Device Descriptors
+//--------------------------------------------------------------------+
+tusb_desc_device_t const desc_device =
+{
+ .bLength = sizeof(tusb_desc_device_t),
+ .bDescriptorType = TUSB_DESC_DEVICE,
+ .bcdUSB = 0x0200,
+
+ // Use Interface Association Descriptor (IAD) for CDC
+ // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
+ .bDeviceClass = TUSB_CLASS_MISC,
+ .bDeviceSubClass = MISC_SUBCLASS_COMMON,
+ .bDeviceProtocol = MISC_PROTOCOL_IAD,
+
+ .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
+
+ .idVendor = 0xCafe,
+ .idProduct = USB_PID,
+ .bcdDevice = 0x0100,
+
+ .iManufacturer = 0x01,
+ .iProduct = 0x02,
+ .iSerialNumber = 0x03,
+
+ .bNumConfigurations = 0x01
+};
+
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void) {
+ return (uint8_t const *) &desc_device;
+}
+
+//--------------------------------------------------------------------+
+// Configuration Descriptor
+//--------------------------------------------------------------------+
+
+enum {
+ ITF_NUM_CDC = 0,
+ ITF_NUM_CDC_DATA,
+ ITF_NUM_TOTAL
+};
+
+#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
+
+#define EPNUM_CDC_NOTIF 0x81
+#define EPNUM_CDC_OUT 0x02
+#define EPNUM_CDC_IN 0x82
+
+
+uint8_t const desc_fs_configuration[] = {
+ // Config number, interface count, string index, total length, attribute, power in mA
+ TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+
+ // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
+ TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
+};
+
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(uint8_t index) {
+ (void) index; // for multiple configurations
+ return desc_fs_configuration;
+}
+
+//--------------------------------------------------------------------+
+// String Descriptors
+//--------------------------------------------------------------------+
+
+// array of pointer to string descriptors
+char const* string_desc_arr [] =
+{
+ (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+ "TinyUSB", // 1: Manufacturer
+ "TinyUSB Device", // 2: Product
+ "123456", // 3: Serials, should use chip ID
+ "TinyUSB CDC", // 4: CDC Interface
+};
+
+static uint16_t _desc_str[32];
+
+// Invoked when received GET STRING DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
+{
+ (void) langid;
+
+ uint8_t chr_count;
+
+ if ( index == 0) {
+ memcpy(&_desc_str[1], string_desc_arr[0], 2);
+ chr_count = 1;
+ } else {
+ // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+ // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+
+ if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+
+ const char* str = string_desc_arr[index];
+
+ // Cap at max char
+ chr_count = strlen(str);
+ if ( chr_count > 31 ) chr_count = 31;
+
+ // Convert ASCII string into UTF-16
+ for(uint8_t i=0; i<chr_count; i++)
+ {
+ _desc_str[1+i] = str[i];
+ }
+ }
+
+ // first byte is length (including header), second byte is string type
+ _desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
+
+ return _desc_str;
+}
projects / sensor-watch.git / commitdiff