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start to add pio usb (host) support

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run as proof of concept
This commit is contained in:
hathach 2022-03-01 23:55:53 +07:00
parent c9b0fbc907
commit 1d29817139
10 changed files with 300 additions and 13 deletions
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2
examples/host/cdc_msc_hid/CMakeLists.txt
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@ -26,4 +26,4 @@ target_include_directories(${PROJECT} PUBLIC
# Configure compilation flags and libraries for the example... see the corresponding function
# in hw/bsp/FAMILY/family.cmake for details.
family_configure_host_example(${PROJECT})
family_configure_host_example(${PROJECT})

7
examples/host/cdc_msc_hid/src/tusb_config.h
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@ -42,7 +42,9 @@
#if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_HOST | OPT_MODE_HIGH_SPEED)
#else
#define CFG_TUSB_RHPORT0_MODE OPT_MODE_HOST
//#define CFG_TUSB_RHPORT0_MODE OPT_MODE_HOST
// rp2040: port0 is native, port 1 for PIO-USB
#define CFG_TUSB_RHPORT1_MODE OPT_MODE_HOST
#endif
#ifndef CFG_TUSB_OS
@ -71,6 +73,9 @@
// CONFIGURATION
//--------------------------------------------------------------------
#define CFG_TUH_RPI_PIO 1
//#define CFG_TUSB_RPI_PIO_INC_PATH 1
// Size of buffer to hold descriptors and other data used for enumeration
#define CFG_TUH_ENUMERATION_BUFSIZE 256

3
hw/bsp/rp2040/family.c
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@ -127,6 +127,9 @@ void board_init(void)
#ifndef BUTTON_BOOTSEL
#endif
// Set the system clock to a multiple of 120mhz for bitbanging USB with pico-usb
set_sys_clock_khz(120000, true);
#if defined(UART_DEV) && defined(LIB_PICO_STDIO_UART)
bi_decl(bi_2pins_with_func(UART_TX_PIN, UART_TX_PIN, GPIO_FUNC_UART));
uart_inst = uart_get_instance(UART_DEV);

20
hw/bsp/rp2040/family.cmake
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@ -89,13 +89,27 @@ if (NOT TARGET _rp2040_family_inclusion_marker)
${TOP}/src/class/hid/hid_host.c
${TOP}/src/class/msc/msc_host.c
${TOP}/src/class/vendor/vendor_host.c
${TOP}/src/portable/raspberrypi/pio/hcd_pio.c
${TOP}/lib/Pico-PIO-USB/pio_usb.c
${TOP}/lib/Pico-PIO-USB/usb_crc.c
)
# Sometimes have to do host specific actions in mostly
# common functions
# Sometimes have to do host specific actions in mostly common functions
target_compile_definitions(tinyusb_host_base INTERFACE
RP2040_USB_HOST_MODE=1
)
# config for host pio
target_link_libraries(tinyusb_host_base INTERFACE
hardware_dma
hardware_pio
pico_multicore
)
target_include_directories(tinyusb_host_base INTERFACE
${TOP}/lib/Pico-PIO-USB
)
add_library(tinyusb_bsp INTERFACE)
target_sources(tinyusb_bsp INTERFACE
@ -151,6 +165,8 @@ if (NOT TARGET _rp2040_family_inclusion_marker)
_family_initialize_project(${PROJECT} ${DIR})
enable_language(C CXX ASM)
pico_sdk_init()
pico_generate_pio_header(tinyusb_host_base ${TOP}/lib/Pico-PIO-USB/usb_tx.pio)
pico_generate_pio_header(tinyusb_host_base ${TOP}/lib/Pico-PIO-USB/usb_rx.pio)
endfunction()
# This method must be called from the project scope to suppress known warnings in TinyUSB source files

1
lib/Pico-PIO-USB Submodule

@ -0,0 +1 @@
Subproject commit 7d672990011695892da523cb0ac29a2c7243a4c9

13
src/host/hcd.h
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@ -143,9 +143,20 @@ void hcd_device_close(uint8_t rhport, uint8_t dev_addr);
// Endpoints API
//--------------------------------------------------------------------+
bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8]);
// Open an endpoint
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc);
// Submit a transfer, when complete hcd_event_xfer_complete() must be invoked
bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen);
// Submit a special transfer to send 8-byte Setup Packet, when complete hcd_event_xfer_complete() must be invoked
bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8]);
// Optional: some controllers are capable of carry out the whole Control Transfer (setup, data, status)
// without help of USBH.
bool hcd_edpt_control_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8], uint8_t* data) TU_ATTR_WEAK;
// clear stall, data toggle is also reset to DATA0
bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr);
//--------------------------------------------------------------------+

12
src/host/usbh.c
View File

@ -358,12 +358,12 @@ void tuh_task(void)
case HCD_EVENT_DEVICE_ATTACH:
// TODO due to the shared _usbh_ctrl_buf, we must complete enumerating
// one device before enumerating another one.
TU_LOG2("USBH DEVICE ATTACH\r\n");
TU_LOG2("[rh%d] USBH DEVICE ATTACH\r\n", event.rhport);
enum_new_device(&event);
break;
case HCD_EVENT_DEVICE_REMOVE:
TU_LOG2("USBH DEVICE REMOVED\r\n");
TU_LOG2("[rh%d] USBH DEVICE REMOVED\r\n", event.rhport);
process_device_unplugged(event.rhport, event.connection.hub_addr, event.connection.hub_port);
#if CFG_TUH_HUB
@ -703,7 +703,9 @@ static bool enum_new_device(hcd_event_t* event)
if (_dev0.hub_addr == 0)
{
// wait until device is stable TODO non blocking
hcd_port_reset(_dev0.rhport);
osal_task_delay(RESET_DELAY);
hcd_port_reset_end( _dev0.rhport);
// device unplugged while delaying
if ( !hcd_port_connect_status(_dev0.rhport) ) return true;
@ -772,13 +774,17 @@ static bool enum_get_addr0_device_desc_complete(uint8_t dev_addr, tusb_control_r
TU_ASSERT( tu_desc_type(desc_device) == TUSB_DESC_DEVICE );
// Reset device again before Set Address
// reset port after 8 byte descriptor
TU_LOG2("Port reset \r\n");
if (_dev0.hub_addr == 0)
{
#if !CFG_TUH_RPI_PIO // skip this reset for pio-usb
// connected directly to roothub
hcd_port_reset( _dev0.rhport ); // reset port after 8 byte descriptor
hcd_port_reset(_dev0.rhport);
osal_task_delay(RESET_DELAY);
hcd_port_reset_end(_dev0.rhport);
#endif
enum_request_set_addr();
}

9
src/host/usbh_control.c
View File

@ -71,7 +71,14 @@ bool tuh_control_xfer (uint8_t dev_addr, tusb_control_request_t const* request,
TU_LOG2("\r\n");
// Send setup packet
TU_ASSERT( hcd_setup_send(rhport, dev_addr, (uint8_t const*) &_ctrl_xfer.request) );
if ( hcd_edpt_control_xfer )
{
_ctrl_xfer.stage = STAGE_ACK;
TU_ASSERT( hcd_edpt_control_xfer(rhport, dev_addr, (uint8_t const*) &_ctrl_xfer.request, buffer) );
}else
{
TU_ASSERT( hcd_setup_send(rhport, dev_addr, (uint8_t const*) &_ctrl_xfer.request) );
}
return true;
}

237
src/portable/raspberrypi/pio/hcd_pio.c Normal file
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@ -0,0 +1,237 @@
/*
* The MIT License (MIT)
*
* Copyright (c) 2021 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 CFG_TUH_ENABLED && (CFG_TUSB_MCU == OPT_MCU_RP2040) && CFG_TUH_RPI_PIO
#include "pico.h"
#include "hardware/pio.h"
#include "pio_usb.h"
//--------------------------------------------------------------------+
// INCLUDE
//--------------------------------------------------------------------+
#include "osal/osal.h"
#include "host/hcd.h"
#include "host/usbh.h"
#define RHPORT_OFFSET 1
#define RHPORT_PIO(_x) ((_x)-RHPORT_OFFSET)
static usb_device_t *_test_usb_device = NULL;
static pio_usb_configuration_t pio_host_config = PIO_USB_DEFAULT_CONFIG;
extern root_port_t root_port[PIO_USB_ROOT_PORT_CNT];
extern usb_device_t usb_device[PIO_USB_DEVICE_CNT];
extern pio_port_t pio_port[1];
extern root_port_t root_port[PIO_USB_ROOT_PORT_CNT];
extern endpoint_t ep_pool[PIO_USB_EP_POOL_CNT];
extern port_pin_status_t get_port_pin_status( root_port_t *port);
extern void configure_fullspeed_host( pio_port_t *pp, const pio_usb_configuration_t *c, root_port_t *port);
extern void configure_lowspeed_host( pio_port_t *pp, const pio_usb_configuration_t *c, root_port_t *port);
extern void control_setup_transfer( const pio_port_t *pp, uint8_t device_address, uint8_t *tx_data_address, uint8_t tx_data_len);
extern int control_in_protocol( usb_device_t *device, uint8_t *tx_data, uint16_t tx_length, uint8_t *rx_buffer, uint16_t request_length);
extern int control_out_protocol( usb_device_t *device, uint8_t *setup_data, uint16_t setup_length, uint8_t *out_data, uint16_t out_length);
extern void update_packet_crc16(usb_setup_packet_t * packet);
//--------------------------------------------------------------------+
// HCD API
//--------------------------------------------------------------------+
bool hcd_init(uint8_t rhport)
{
// To run USB SOF interrupt in core1, create alarm pool in core1.
pio_host_config.alarm_pool = (void*)alarm_pool_create(2, 1);
_test_usb_device = pio_usb_host_init(&pio_host_config);
return true;
}
void hcd_port_reset(uint8_t rhport)
{
rhport = RHPORT_PIO(rhport);
pio_port_t *pp = &pio_port[0];
root_port_t *root = &root_port[rhport];
pio_sm_set_pins_with_mask(pp->pio_usb_tx, pp->sm_tx, (0b00 << root->pin_dp),
(0b11u << root->pin_dp));
pio_sm_set_pindirs_with_mask(pp->pio_usb_tx, pp->sm_tx, (0b11u << root->pin_dp),
(0b11u << root->pin_dp));
}
void hcd_port_reset_end(uint8_t rhport)
{
rhport = RHPORT_PIO(rhport);
pio_port_t *pp = &pio_port[0];
root_port_t *root = &root_port[rhport];
pio_sm_set_pindirs_with_mask(pp->pio_usb_tx, pp->sm_tx, (0b00u << root->pin_dp),
(0b11u << root->pin_dp));
busy_wait_us(100);
// TODO slow speed
bool fullspeed_flag = true;
if (fullspeed_flag && get_port_pin_status(root) == PORT_PIN_FS_IDLE) {
root->root_device = &usb_device[0];
if (!root->root_device->connected) {
configure_fullspeed_host(pp, &pio_host_config, root);
root->root_device->is_fullspeed = true;
root->root_device->is_root = true;
root->root_device->connected = true;
root->root_device->root = root;
root->root_device->event = EVENT_CONNECT;
}
} else if (!fullspeed_flag && get_port_pin_status(root) == PORT_PIN_LS_IDLE) {
root->root_device = &usb_device[0];
if (!root->root_device->connected) {
configure_lowspeed_host(pp, &pio_host_config, root);
root->root_device->is_fullspeed = false;
root->root_device->is_root = true;
root->root_device->connected = true;
root->root_device->root = root;
root->root_device->event = EVENT_CONNECT;
}
}
}
bool hcd_port_connect_status(uint8_t rhport)
{
root_port_t* port = &root_port[0];
bool dp = gpio_get(port->pin_dp);
bool dm = gpio_get(port->pin_dm);
return dp || dm;
}
tusb_speed_t hcd_port_speed_get(uint8_t rhport)
{
// TODO determine link speed
return TUSB_SPEED_FULL;
}
// Close all opened endpoint belong to this device
void hcd_device_close(uint8_t rhport, uint8_t dev_addr)
{
}
uint32_t hcd_frame_number(uint8_t rhport)
{
return 0;
}
void hcd_int_enable(uint8_t rhport)
{
}
void hcd_int_disable(uint8_t rhport)
{
}
//--------------------------------------------------------------------+
// Endpoint API
//--------------------------------------------------------------------+
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc)
{
rhport = RHPORT_PIO(rhport);
usb_device[0].event = EVENT_NONE;
usb_device[0].address = dev_addr;
return true;
}
bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen)
{
(void) rhport;
return true;
}
bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8])
{
(void) rhport;
return false;
}
bool hcd_edpt_control_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8], uint8_t* data)
{
int ret;
rhport = RHPORT_PIO(rhport);
uint16_t const len = ((tusb_control_request_t const*) setup_packet)->wLength;
usb_setup_packet_t pio_setup = { USB_SYNC, USB_PID_DATA0 };
memcpy(&pio_setup.request_type, setup_packet, 8);
update_packet_crc16(&pio_setup);
if (setup_packet[0] & TUSB_DIR_IN_MASK)
{
ret = control_in_protocol(&usb_device[0], (uint8_t*) &pio_setup, sizeof(pio_setup), data, len);
}else
{
ret = control_out_protocol(&usb_device[0], (uint8_t*) &pio_setup, sizeof(pio_setup), data, len);
}
// TODO current pio is blocking
hcd_event_xfer_complete(dev_addr, 0, 0, ret ? XFER_RESULT_FAILED : XFER_RESULT_SUCCESS, false);
return ret == 0;
}
//bool hcd_edpt_busy(uint8_t dev_addr, uint8_t ep_addr)
//{
// // EPX is shared, so multiple device addresses and endpoint addresses share that
// // so if any transfer is active on epx, we are busy. Interrupt endpoints have their own
// // EPX so ep->active will only be busy if there is a pending transfer on that interrupt endpoint
// // on that device
// pico_trace("hcd_edpt_busy dev addr %d ep_addr 0x%x\n", dev_addr, ep_addr);
// struct hw_endpoint *ep = get_dev_ep(dev_addr, ep_addr);
// assert(ep);
// bool busy = ep->active;
// pico_trace("busy == %d\n", busy);
// return busy;
//}
bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr)
{
(void) dev_addr;
(void) ep_addr;
return true;
}
#endif

9
src/portable/raspberrypi/rp2040/hcd_rp2040.c
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@ -27,7 +27,7 @@
#include "tusb_option.h"
#if CFG_TUH_ENABLED && CFG_TUSB_MCU == OPT_MCU_RP2040
#if CFG_TUH_ENABLED && (CFG_TUSB_MCU == OPT_MCU_RP2040) && !CFG_TUH_RPI_PIO
#include "pico.h"
#include "rp2040_usb.h"
@ -40,7 +40,8 @@
#include "host/hcd.h"
#include "host/usbh.h"
#define ROOT_PORT 0
// port 0 is native USB port, other is counted as software PIO
#define RHPORT_NATIVE 0
//--------------------------------------------------------------------+
// Low level rp2040 controller functions
@ -185,11 +186,11 @@ static void hcd_rp2040_irq(void)
if (dev_speed())
{
hcd_event_device_attach(ROOT_PORT, true);
hcd_event_device_attach(RHPORT_NATIVE, true);
}
else
{
hcd_event_device_remove(ROOT_PORT, true);
hcd_event_device_remove(RHPORT_NATIVE, true);
}
// Clear speed change interrupt