diff options
| author | Mengsk <[email protected]> | 2022-11-07 12:47:41 +0100 |
|---|---|---|
| committer | Mengsk <[email protected]> | 2022-11-07 12:47:41 +0100 |
| commit | 9d3d8fd5b0788b811ad283d10d37dfd1b1005224 (patch) | |
| tree | f66b39fe968cc1a6e46e3074bbda9b907064bc15 /examples/host/bare_api/src | |
| parent | 1eae139aa94130a63ecc4725852cb69c02566c82 (diff) | |
| parent | e434a1dc0584e841da1ae4ff525bbe81a0f5514b (diff) | |
Merge branch 'master' of https://github.com/hathach/tinyusb into bsp_412
Diffstat (limited to 'examples/host/bare_api/src')
| -rw-r--r-- | examples/host/bare_api/src/main.c | 419 | ||||
| -rw-r--r-- | examples/host/bare_api/src/tusb_config.h | 109 |
2 files changed, 528 insertions, 0 deletions
diff --git a/examples/host/bare_api/src/main.c b/examples/host/bare_api/src/main.c new file mode 100644 index 000000000..51cab2de0 --- /dev/null +++ b/examples/host/bare_api/src/main.c @@ -0,0 +1,419 @@ +/* + * 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. + * + */ + +/* This example current worked and tested with following controller + * - Sony DualShock 4 [CUH-ZCT2x] VID = 0x054c, PID = 0x09cc + */ + + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include "bsp/board.h" +#include "tusb.h" + +// English +#define LANGUAGE_ID 0x0409 +#define BUF_COUNT 4 + + +tusb_desc_device_t desc_device; + +uint8_t buf_pool[BUF_COUNT][64]; +uint8_t buf_owner[BUF_COUNT] = { 0 }; // device address that owns buffer + +//--------------------------------------------------------------------+ +// MACRO CONSTANT TYPEDEF PROTYPES +//--------------------------------------------------------------------+ +void led_blinking_task(void); + +static void print_utf16(uint16_t *temp_buf, size_t buf_len); +void print_device_descriptor(tuh_xfer_t* xfer); +void parse_config_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg); + +uint8_t* get_hid_buf(uint8_t daddr); +void free_hid_buf(uint8_t daddr); + +/*------------- MAIN -------------*/ +int main(void) +{ + board_init(); + + printf("TinyUSB Bare API Example\r\n"); + + // init host stack on configured roothub port + tuh_init(BOARD_TUH_RHPORT); + + while (1) + { + // tinyusb host task + tuh_task(); + led_blinking_task(); + } + + return 0; +} + +/*------------- TinyUSB Callbacks -------------*/ + +// Invoked when device is mounted (configured) +void tuh_mount_cb (uint8_t daddr) +{ + printf("Device attached, address = %d\r\n", daddr); + + // Get Device Descriptor + // TODO: invoking control transfer now has issue with mounting hub with multiple devices attached, fix later + tuh_descriptor_get_device(daddr, &desc_device, 18, print_device_descriptor, 0); +} + +/// Invoked when device is unmounted (bus reset/unplugged) +void tuh_umount_cb(uint8_t daddr) +{ + printf("Device removed, address = %d\r\n", daddr); + free_hid_buf(daddr); +} + +//--------------------------------------------------------------------+ +// Device Descriptor +//--------------------------------------------------------------------+ + +void print_device_descriptor(tuh_xfer_t* xfer) +{ + if ( XFER_RESULT_SUCCESS != xfer->result ) + { + printf("Failed to get device descriptor\r\n"); + return; + } + + uint8_t const daddr = xfer->daddr; + + printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct); + printf("Device Descriptor:\r\n"); + printf(" bLength %u\r\n" , desc_device.bLength); + printf(" bDescriptorType %u\r\n" , desc_device.bDescriptorType); + printf(" bcdUSB %04x\r\n" , desc_device.bcdUSB); + printf(" bDeviceClass %u\r\n" , desc_device.bDeviceClass); + printf(" bDeviceSubClass %u\r\n" , desc_device.bDeviceSubClass); + printf(" bDeviceProtocol %u\r\n" , desc_device.bDeviceProtocol); + printf(" bMaxPacketSize0 %u\r\n" , desc_device.bMaxPacketSize0); + printf(" idVendor 0x%04x\r\n" , desc_device.idVendor); + printf(" idProduct 0x%04x\r\n" , desc_device.idProduct); + printf(" bcdDevice %04x\r\n" , desc_device.bcdDevice); + + // Get String descriptor using Sync API + uint16_t temp_buf[128]; + + printf(" iManufacturer %u " , desc_device.iManufacturer); + if (XFER_RESULT_SUCCESS == tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, temp_buf, sizeof(temp_buf)) ) + { + print_utf16(temp_buf, TU_ARRAY_SIZE(temp_buf)); + } + printf("\r\n"); + + printf(" iProduct %u " , desc_device.iProduct); + if (XFER_RESULT_SUCCESS == tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, temp_buf, sizeof(temp_buf))) + { + print_utf16(temp_buf, TU_ARRAY_SIZE(temp_buf)); + } + printf("\r\n"); + + printf(" iSerialNumber %u " , desc_device.iSerialNumber); + if (XFER_RESULT_SUCCESS == tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, temp_buf, sizeof(temp_buf))) + { + print_utf16(temp_buf, TU_ARRAY_SIZE(temp_buf)); + } + printf("\r\n"); + + printf(" bNumConfigurations %u\r\n" , desc_device.bNumConfigurations); + + // Get configuration descriptor with sync API + if (XFER_RESULT_SUCCESS == tuh_descriptor_get_configuration_sync(daddr, 0, temp_buf, sizeof(temp_buf))) + { + parse_config_descriptor(daddr, (tusb_desc_configuration_t*) temp_buf); + } +} + +//--------------------------------------------------------------------+ +// Configuration Descriptor +//--------------------------------------------------------------------+ + +// count total length of an interface +uint16_t count_interface_total_len(tusb_desc_interface_t const* desc_itf, uint8_t itf_count, uint16_t max_len); + +void open_hid_interface(uint8_t daddr, tusb_desc_interface_t const *desc_itf, uint16_t max_len); + +// simple configuration parser to open and listen to HID Endpoint IN +void parse_config_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg) +{ + uint8_t const* desc_end = ((uint8_t const*) desc_cfg) + tu_le16toh(desc_cfg->wTotalLength); + uint8_t const* p_desc = tu_desc_next(desc_cfg); + + // parse each interfaces + while( p_desc < desc_end ) + { + uint8_t assoc_itf_count = 1; + + // Class will always starts with Interface Association (if any) and then Interface descriptor + if ( TUSB_DESC_INTERFACE_ASSOCIATION == tu_desc_type(p_desc) ) + { + tusb_desc_interface_assoc_t const * desc_iad = (tusb_desc_interface_assoc_t const *) p_desc; + assoc_itf_count = desc_iad->bInterfaceCount; + + p_desc = tu_desc_next(p_desc); // next to Interface + } + + // must be interface from now + if( TUSB_DESC_INTERFACE != tu_desc_type(p_desc) ) return; + tusb_desc_interface_t const* desc_itf = (tusb_desc_interface_t const*) p_desc; + + uint16_t const drv_len = count_interface_total_len(desc_itf, assoc_itf_count, (uint16_t) (desc_end-p_desc)); + + // probably corrupted descriptor + if(drv_len < sizeof(tusb_desc_interface_t)) return; + + // only open and listen to HID endpoint IN + if (desc_itf->bInterfaceClass == TUSB_CLASS_HID) + { + open_hid_interface(dev_addr, desc_itf, drv_len); + } + + // next Interface or IAD descriptor + p_desc += drv_len; + } +} + +uint16_t count_interface_total_len(tusb_desc_interface_t const* desc_itf, uint8_t itf_count, uint16_t max_len) +{ + uint8_t const* p_desc = (uint8_t const*) desc_itf; + uint16_t len = 0; + + while (itf_count--) + { + // Next on interface desc + len += tu_desc_len(desc_itf); + p_desc = tu_desc_next(p_desc); + + while (len < max_len) + { + // return on IAD regardless of itf count + if ( tu_desc_type(p_desc) == TUSB_DESC_INTERFACE_ASSOCIATION ) return len; + + if ( (tu_desc_type(p_desc) == TUSB_DESC_INTERFACE) && + ((tusb_desc_interface_t const*) p_desc)->bAlternateSetting == 0 ) + { + break; + } + + len += tu_desc_len(p_desc); + p_desc = tu_desc_next(p_desc); + } + } + + return len; +} + +//--------------------------------------------------------------------+ +// HID Interface +//--------------------------------------------------------------------+ + +void hid_report_received(tuh_xfer_t* xfer); + +void open_hid_interface(uint8_t daddr, tusb_desc_interface_t const *desc_itf, uint16_t max_len) +{ + // len = interface + hid + n*endpoints + uint16_t const drv_len = (uint16_t) (sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + + desc_itf->bNumEndpoints * sizeof(tusb_desc_endpoint_t)); + + // corrupted descriptor + if (max_len < drv_len) return; + + uint8_t const *p_desc = (uint8_t const *) desc_itf; + + // HID descriptor + p_desc = tu_desc_next(p_desc); + tusb_hid_descriptor_hid_t const *desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc; + if(HID_DESC_TYPE_HID != desc_hid->bDescriptorType) return; + + // Endpoint descriptor + p_desc = tu_desc_next(p_desc); + tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc; + + for(int i = 0; i < desc_itf->bNumEndpoints; i++) + { + if (TUSB_DESC_ENDPOINT != desc_ep->bDescriptorType) return; + + if(tu_edpt_dir(desc_ep->bEndpointAddress) == TUSB_DIR_IN) + { + // skip if failed to open endpoint + if ( ! tuh_edpt_open(daddr, desc_ep) ) return; + + uint8_t* buf = get_hid_buf(daddr); + if (!buf) return; // out of memory + + tuh_xfer_t xfer = + { + .daddr = daddr, + .ep_addr = desc_ep->bEndpointAddress, + .buflen = 64, + .buffer = buf, + .complete_cb = hid_report_received, + .user_data = (uintptr_t) buf, // since buffer is not available in callback, use user data to store the buffer + }; + + // submit transfer for this EP + tuh_edpt_xfer(&xfer); + + printf("Listen to [dev %u: ep %02x]\r\n", daddr, desc_ep->bEndpointAddress); + } + + p_desc = tu_desc_next(p_desc); + desc_ep = (tusb_desc_endpoint_t const *) p_desc; + } +} + +void hid_report_received(tuh_xfer_t* xfer) +{ + // Note: not all field in xfer is available for use (i.e filled by tinyusb stack) in callback to save sram + // For instance, xfer->buffer is NULL. We have used user_data to store buffer when submitted callback + uint8_t* buf = (uint8_t*) xfer->user_data; + + if (xfer->result == XFER_RESULT_SUCCESS) + { + printf("[dev %u: ep %02x] HID Report:", xfer->daddr, xfer->ep_addr); + for(uint32_t i=0; i<xfer->actual_len; i++) + { + if (i%16 == 0) printf("\r\n "); + printf("%02X ", buf[i]); + } + printf("\r\n"); + } + + // continue to submit transfer, with updated buffer + // other field remain the same + xfer->buflen = 64; + xfer->buffer = buf; + + tuh_edpt_xfer(xfer); +} + +//--------------------------------------------------------------------+ +// Buffer helper +//--------------------------------------------------------------------+ + +// get an buffer from pool +uint8_t* get_hid_buf(uint8_t daddr) +{ + for(size_t i=0; i<BUF_COUNT; i++) + { + if (buf_owner[i] == 0) + { + buf_owner[i] = daddr; + return buf_pool[i]; + } + } + + // out of memory, increase BUF_COUNT + return NULL; +} + +// free all buffer owned by device +void free_hid_buf(uint8_t daddr) +{ + for(size_t i=0; i<BUF_COUNT; i++) + { + if (buf_owner[i] == daddr) buf_owner[i] = 0; + } +} + +//--------------------------------------------------------------------+ +// Blinking Task +//--------------------------------------------------------------------+ +void led_blinking_task(void) +{ + const uint32_t interval_ms = 1000; + static uint32_t start_ms = 0; + + static bool led_state = false; + + // Blink every interval ms + if ( board_millis() - start_ms < interval_ms) return; // not enough time + start_ms += interval_ms; + + board_led_write(led_state); + led_state = 1 - led_state; // toggle +} + +//--------------------------------------------------------------------+ +// String Descriptor Helper +//--------------------------------------------------------------------+ + +static void _convert_utf16le_to_utf8(const uint16_t *utf16, size_t utf16_len, uint8_t *utf8, size_t utf8_len) { + // TODO: Check for runover. + (void)utf8_len; + // Get the UTF-16 length out of the data itself. + + for (size_t i = 0; i < utf16_len; i++) { + uint16_t chr = utf16[i]; + if (chr < 0x80) { + *utf8++ = chr & 0xffu; + } else if (chr < 0x800) { + *utf8++ = (uint8_t)(0xC0 | (chr >> 6 & 0x1F)); + *utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F)); + } else { + // TODO: Verify surrogate. + *utf8++ = (uint8_t)(0xE0 | (chr >> 12 & 0x0F)); + *utf8++ = (uint8_t)(0x80 | (chr >> 6 & 0x3F)); + *utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F)); + } + // TODO: Handle UTF-16 code points that take two entries. + } +} + +// Count how many bytes a utf-16-le encoded string will take in utf-8. +static int _count_utf8_bytes(const uint16_t *buf, size_t len) { + size_t total_bytes = 0; + for (size_t i = 0; i < len; i++) { + uint16_t chr = buf[i]; + if (chr < 0x80) { + total_bytes += 1; + } else if (chr < 0x800) { + total_bytes += 2; + } else { + total_bytes += 3; + } + // TODO: Handle UTF-16 code points that take two entries. + } + return (int) total_bytes; +} + +static void print_utf16(uint16_t *temp_buf, size_t buf_len) { + size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t); + size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len); + _convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t *) temp_buf, sizeof(uint16_t) * buf_len); + ((uint8_t*) temp_buf)[utf8_len] = '\0'; + + printf((char*)temp_buf); +} diff --git a/examples/host/bare_api/src/tusb_config.h b/examples/host/bare_api/src/tusb_config.h new file mode 100644 index 000000000..ed0aaf7da --- /dev/null +++ b/examples/host/bare_api/src/tusb_config.h @@ -0,0 +1,109 @@ +/* + * 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 + +//--------------------------------------------------------------------+ +// Board Specific Configuration +//--------------------------------------------------------------------+ + +// RHPort number used for host can be defined by board.mk, default to port 0 +#ifndef BOARD_TUH_RHPORT +#define BOARD_TUH_RHPORT 0 +#endif + +// RHPort max operational speed can defined by board.mk +#ifndef BOARD_TUH_MAX_SPEED +#define BOARD_TUH_MAX_SPEED OPT_MODE_DEFAULT_SPEED +#endif + +//-------------------------------------------------------------------- +// COMMON CONFIGURATION +//-------------------------------------------------------------------- + +// defined by compiler flags for flexibility +#ifndef CFG_TUSB_MCU +#error CFG_TUSB_MCU must be defined +#endif + +#ifndef CFG_TUSB_OS +#define CFG_TUSB_OS OPT_OS_NONE +#endif + +#ifndef CFG_TUSB_DEBUG +#define CFG_TUSB_DEBUG 0 +#endif + +// Enable Host stack +#define CFG_TUH_ENABLED 1 + +// Default is max speed that hardware controller could support with on-chip PHY +#define CFG_TUH_MAX_SPEED BOARD_TUH_MAX_SPEED + +/* 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 + +//-------------------------------------------------------------------- +// CONFIGURATION +//-------------------------------------------------------------------- + +// Size of buffer to hold descriptors and other data used for enumeration +#define CFG_TUH_ENUMERATION_BUFSIZE 256 + +// only hub class is enabled +#define CFG_TUH_HUB 1 + +// max device support (excluding hub device) +// 1 hub typically has 4 ports +#define CFG_TUH_DEVICE_MAX (CFG_TUH_HUB ? 4 : 1) + +// Max endpoint per device +#define CFG_TUH_ENDPOINT_MAX 8 + +// Enable tuh_edpt_xfer() API +#define CFG_TUH_API_EDPT_XFER 1 + +#ifdef __cplusplus + } +#endif + +#endif /* _TUSB_CONFIG_H_ */ |
