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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
commit | 39a5c822a2a2e798e2e39ff8a98b7af84253026c (patch) | |
tree | fa157c98d3aea0d4f996e4415aa2a7ad1093ac05 /tinyusb/src/host/usbh_control.c | |
parent | c9e00b83bbdcb05058806d915ec4fff3cf4e596f (diff) | |
download | Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.gz Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.bz2 Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.zip |
add tinyusb
Diffstat (limited to 'tinyusb/src/host/usbh_control.c')
-rwxr-xr-x | tinyusb/src/host/usbh_control.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/tinyusb/src/host/usbh_control.c b/tinyusb/src/host/usbh_control.c new file mode 100755 index 00000000..9204576a --- /dev/null +++ b/tinyusb/src/host/usbh_control.c @@ -0,0 +1,138 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020, 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 file is part of the TinyUSB stack. + */ + +#include "tusb_option.h" + +#if TUSB_OPT_HOST_ENABLED + +#include "tusb.h" +#include "usbh_classdriver.h" + +enum +{ + STAGE_SETUP, + STAGE_DATA, + STAGE_ACK +}; + +typedef struct +{ + tusb_control_request_t request TU_ATTR_ALIGNED(4); + + uint8_t stage; + uint8_t* buffer; + tuh_control_complete_cb_t complete_cb; +} usbh_control_xfer_t; + +static usbh_control_xfer_t _ctrl_xfer; + +//CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN +//static uint8_t _tuh_ctrl_buf[CFG_TUH_ENUMERATION_BUFSIZE]; + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ + +bool tuh_control_xfer (uint8_t dev_addr, tusb_control_request_t const* request, void* buffer, tuh_control_complete_cb_t complete_cb) +{ + // TODO need to claim the endpoint first + const uint8_t rhport = usbh_get_rhport(dev_addr); + + _ctrl_xfer.request = (*request); + _ctrl_xfer.buffer = buffer; + _ctrl_xfer.stage = STAGE_SETUP; + _ctrl_xfer.complete_cb = complete_cb; + + TU_LOG2("Control Setup (addr = %u): ", dev_addr); + TU_LOG2_VAR(request); + TU_LOG2("\r\n"); + + // Send setup packet + TU_ASSERT( hcd_setup_send(rhport, dev_addr, (uint8_t const*) &_ctrl_xfer.request) ); + + return true; +} + +static void _xfer_complete(uint8_t dev_addr, xfer_result_t result) +{ + TU_LOG2("\r\n"); + if (_ctrl_xfer.complete_cb) _ctrl_xfer.complete_cb(dev_addr, &_ctrl_xfer.request, result); +} + +bool usbh_control_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes) +{ + (void) ep_addr; + (void) xferred_bytes; + + const uint8_t rhport = usbh_get_rhport(dev_addr); + + tusb_control_request_t const * request = &_ctrl_xfer.request; + + if (XFER_RESULT_SUCCESS != result) + { + TU_LOG2("Control failed: result = %d\r\n", result); + + // terminate transfer if any stage failed + _xfer_complete(dev_addr, result); + }else + { + switch(_ctrl_xfer.stage) + { + case STAGE_SETUP: + _ctrl_xfer.stage = STAGE_DATA; + if (request->wLength) + { + // DATA stage: initial data toggle is always 1 + hcd_edpt_xfer(rhport, dev_addr, tu_edpt_addr(0, request->bmRequestType_bit.direction), _ctrl_xfer.buffer, request->wLength); + return true; + } + __attribute__((fallthrough)); + + case STAGE_DATA: + _ctrl_xfer.stage = STAGE_ACK; + + if (request->wLength) + { + TU_LOG2("Control data (addr = %u):\r\n", dev_addr); + TU_LOG2_MEM(_ctrl_xfer.buffer, request->wLength, 2); + } + + // ACK stage: toggle is always 1 + hcd_edpt_xfer(rhport, dev_addr, tu_edpt_addr(0, 1-request->bmRequestType_bit.direction), NULL, 0); + break; + + case STAGE_ACK: + _xfer_complete(dev_addr, result); + break; + + default: return false; + } + } + + return true; +} + +#endif |