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WIP switching to pico-pio-usb

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This commit is contained in:
Jeff Epler 2025-03-14 14:19:15 -05:00
parent 6805b1191b
commit d0a29092b6
3 changed files with 17 additions and 1 deletions
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7
CMakeLists.txt
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@ -51,6 +51,10 @@ set(HSTX_D2P 19 CACHE STRING "HSTX D2+ PIN")
option(USE_VGA_RES "Video uses VGA (640x480) resolution" OFF)
set(VIDEO_PIN 18 CACHE STRING "VGA Video GPIO base pin (followed by VS, CLK, HS)")
# Pins for PIO-based USB host
set(PIN_USB_HOST_DP CACHE STRING "1")
set(PIN_USB_HOST_DM CACHE STRING "2")
# See below, -DMEMSIZE=<size in KB> will configure umac's memory size,
# overriding defaults.
@ -122,6 +126,9 @@ else()
endif()
add_compile_definitions(PIN_USB_HOST_DP=${PIN_USB_HOST_DP})
add_compile_definitions(PIN_USB_HOST_DM=${PIN_USB_HOST_DM})
if (TARGET tinyusb_device)
add_executable(firmware
src/main.c

2
include/tusb_config.h
View file

@ -83,6 +83,8 @@
// max device support (excluding hub device)
#define CFG_TUH_DEVICE_MAX (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
#define CFG_TUH_RPI_PIO_USB 1
//------------- HID -------------//
#define CFG_TUH_HID_EPIN_BUFSIZE 64
#define CFG_TUH_HID_EPOUT_BUFSIZE 64

9
src/main.c
View file

@ -273,7 +273,14 @@ int main()
multicore_launch_core1(core1_main);
printf("Starting, init usb\n");
tusb_init();
pio_usb_configuration_t pio_cfg = PIO_USB_DEFAULT_CONFIG;
_Static_assert(PIN_USB_HOST_DP + 1 == PIN_USB_HOST_DM || PIN_USB_HOST_DP - 1 == PIN_USB_HOST_DM, "Permitted USB D+/D- configuration");
pio_cfg.pinout = PIN_USB_HOST_DP + 1 == PIN_USB_HOST_DM ? PIO_USB_PINOUT_DPDM : PIO_USB_PINOUT_DMDP;
pio_cfg.pin_dp = PIN_USB_HOST_DP;
tuh_configure(BOARD_TUH_RHPORT, TUH_CFGID_RPI_PIO_USB_CONFIGURATION, &pio_cfg);
tuh_init(BOARD_TUH_RHPORT);
/* This happens on core 0: */
while (true) {