231 lines
6.7 KiB
C
231 lines
6.7 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "tusb_option.h"
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#if CFG_TUH_ENABLED && (CFG_TUSB_MCU == OPT_MCU_RP2040) && CFG_TUH_RPI_PIO_USB
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#include "pico.h"
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#include "pio_usb.h"
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#include "pio_usb_ll.h"
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "osal/osal.h"
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#include "host/hcd.h"
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#include "host/usbh.h"
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#define RHPORT_OFFSET 1
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#define RHPORT_PIO(_x) ((_x)-RHPORT_OFFSET)
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static pio_usb_configuration_t pio_host_cfg = PIO_USB_DEFAULT_CONFIG;
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//--------------------------------------------------------------------+
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// HCD API
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//--------------------------------------------------------------------+
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bool hcd_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param)
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{
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(void) rhport;
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TU_VERIFY(cfg_id == TUH_CFGID_RPI_PIO_USB_CONFIGURATION);
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memcpy(&pio_host_cfg, cfg_param, sizeof(pio_usb_configuration_t));
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return true;
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}
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bool hcd_init(uint8_t rhport)
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{
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(void) rhport;
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// To run USB SOF interrupt in core1, call this init in core1
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pio_usb_host_init(&pio_host_cfg);
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return true;
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}
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void hcd_port_reset(uint8_t rhport)
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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pio_usb_host_port_reset_start(pio_rhport);
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}
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void hcd_port_reset_end(uint8_t rhport)
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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pio_usb_host_port_reset_end(pio_rhport);
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}
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bool hcd_port_connect_status(uint8_t rhport)
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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root_port_t *root = PIO_USB_ROOT_PORT(pio_rhport);
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port_pin_status_t line_state = pio_usb_bus_get_line_state(root);
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return line_state != PORT_PIN_SE0;
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}
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tusb_speed_t hcd_port_speed_get(uint8_t rhport)
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{
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// TODO determine link speed
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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return PIO_USB_ROOT_PORT(pio_rhport)->is_fullspeed ? TUSB_SPEED_FULL : TUSB_SPEED_LOW;
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}
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// Close all opened endpoint belong to this device
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void hcd_device_close(uint8_t rhport, uint8_t dev_addr)
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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pio_usb_host_close_device(pio_rhport, dev_addr);
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}
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uint32_t hcd_frame_number(uint8_t rhport)
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{
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(void) rhport;
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return pio_usb_host_get_frame_number();
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}
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void hcd_int_enable(uint8_t rhport)
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{
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(void) rhport;
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}
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void hcd_int_disable(uint8_t rhport)
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{
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(void) rhport;
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}
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//--------------------------------------------------------------------+
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// Endpoint API
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//--------------------------------------------------------------------+
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bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * desc_ep)
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{
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hcd_devtree_info_t dev_tree;
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hcd_devtree_get_info(dev_addr, &dev_tree);
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bool const need_pre = (dev_tree.hub_addr && dev_tree.speed == TUSB_SPEED_LOW);
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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return pio_usb_host_endpoint_open(pio_rhport, dev_addr, (uint8_t const*) desc_ep, need_pre);
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}
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bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen)
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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return pio_usb_host_endpoint_transfer(pio_rhport, dev_addr, ep_addr, buffer, buflen);
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}
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bool hcd_edpt_abort_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr) {
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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return pio_usb_host_endpoint_abort_transfer(pio_rhport, dev_addr, ep_addr);
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}
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bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8])
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{
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uint8_t const pio_rhport = RHPORT_PIO(rhport);
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return pio_usb_host_send_setup(pio_rhport, dev_addr, setup_packet);
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}
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//bool hcd_edpt_busy(uint8_t dev_addr, uint8_t ep_addr)
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//{
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// // EPX is shared, so multiple device addresses and endpoint addresses share that
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// // so if any transfer is active on epx, we are busy. Interrupt endpoints have their own
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// // EPX so ep->active will only be busy if there is a pending transfer on that interrupt endpoint
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// // on that device
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// pico_trace("hcd_edpt_busy dev addr %d ep_addr 0x%x\r\n", dev_addr, ep_addr);
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// struct hw_endpoint *ep = get_dev_ep(dev_addr, ep_addr);
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// assert(ep);
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// bool busy = ep->active;
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// pico_trace("busy == %d\r\n", busy);
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// return busy;
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//}
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bool hcd_edpt_clear_stall(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr) {
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(void) rhport;
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(void) dev_addr;
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(void) ep_addr;
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return true;
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}
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static void __no_inline_not_in_flash_func(handle_endpoint_irq)(root_port_t* rport, xfer_result_t result, volatile uint32_t* ep_reg)
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{
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(void) rport;
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const uint32_t ep_all = *ep_reg;
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for(uint8_t ep_idx = 0; ep_idx < PIO_USB_EP_POOL_CNT; ep_idx++)
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{
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uint32_t const mask = (1u << ep_idx);
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if (ep_all & mask)
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{
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endpoint_t* ep = PIO_USB_ENDPOINT(ep_idx);
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hcd_event_xfer_complete(ep->dev_addr, ep->ep_num, ep->actual_len, result, true);
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}
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}
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// clear all
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(*ep_reg) &= ~ep_all;
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}
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// IRQ Handler
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void __no_inline_not_in_flash_func(pio_usb_host_irq_handler)(uint8_t root_id)
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{
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uint8_t const tu_rhport = root_id + 1;
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root_port_t* rport = PIO_USB_ROOT_PORT(root_id);
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uint32_t const ints = rport->ints;
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if ( ints & PIO_USB_INTS_CONNECT_BITS )
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{
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hcd_event_device_attach(tu_rhport, true);
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}
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if ( ints & PIO_USB_INTS_DISCONNECT_BITS )
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{
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hcd_event_device_remove(tu_rhport, true);
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}
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if ( ints & PIO_USB_INTS_ENDPOINT_COMPLETE_BITS )
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{
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handle_endpoint_irq(rport, XFER_RESULT_SUCCESS, &rport->ep_complete);
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}
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if ( ints & PIO_USB_INTS_ENDPOINT_STALLED_BITS )
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{
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handle_endpoint_irq(rport, XFER_RESULT_STALLED, &rport->ep_stalled);
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}
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if ( ints & PIO_USB_INTS_ENDPOINT_ERROR_BITS )
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{
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handle_endpoint_irq(rport, XFER_RESULT_FAILED, &rport->ep_error);
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}
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// clear all
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rport->ints &= ~ints;
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}
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#endif
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