diff options
Diffstat (limited to 'cmd/sbc_harness/main.c')
| -rw-r--r-- | cmd/sbc_harness/main.c | 220 |
1 files changed, 193 insertions, 27 deletions
diff --git a/cmd/sbc_harness/main.c b/cmd/sbc_harness/main.c index b9c5330..5630e83 100644 --- a/cmd/sbc_harness/main.c +++ b/cmd/sbc_harness/main.c @@ -1,24 +1,127 @@ /* sbc_harness/main.c - Main entry point and event loop for sbc-harness * - * Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> + * Copyright (C) 2024-2025 Luke T. Shumaker <lukeshu@lukeshu.com> * SPDX-License-Identifier: AGPL-3.0-or-later */ -#include <string.h> /* libc: for strlen() */ -#include <stdio.h> /* libc: for printf() */ +/* libc */ +#include <string.h> /* libc: for strlen() */ -#include <pico/stdlib.h> /* pico-sdk:pico_stdlib: for stdio_uart_init() */ -#include <hardware/flash.h> /* pico-sdk:hardware_flash: for flash_get_unique_id() */ +/* pico-sdk */ +#include <pico/stdio_uart.h> /* pico-sdk:pico_stdio_uart: for stdio_uart_init() */ +#include <hardware/flash.h> /* pico-sdk:hardware_flash: for flash_get_unique_id() */ +/* our OS */ #include <libcr/coroutine.h> +#include <libhw/generic/alarmclock.h> /* so we can set `bootclock` */ #include <libhw/rp2040_hwspi.h> +#include <libhw/rp2040_hwtimer.h> #include <libhw/w5500.h> -#include <libmisc/hash.h> + +/* our application libraries */ +#include <libdhcp/client.h> #include <libusb/usb_common.h> +#include <lib9p/srv.h> +#include <util9p/static.h> + +/* our utility libraries */ +#include <libmisc/hash.h> +#define LOG_NAME MAIN +#include <libmisc/log.h> +/* local headers */ #include "usb_keyboard.h" +#include "static.h" +#include "fs_harness_flash_bin.h" +#include "fs_harness_uptime_txt.h" + +/* configuration **************************************************************/ + +#include "config.h" + +#ifndef _CONFIG_9P_MAX_CONNS + #error config.h must define _CONFIG_9P_MAX_CONNS +#endif +#ifndef _CONFIG_9P_MAX_REQS + #error config.h must define _CONFIG_9P_MAX_REQS +#endif + +/* file tree ******************************************************************/ + +enum { PATH_BASE = __COUNTER__ }; +#define PATH_COUNTER __COUNTER__ - PATH_BASE + +#define STATIC_FILE(STRNAME, ...) UTIL9P_STATIC_FILE(PATH_COUNTER, STRNAME, __VA_ARGS__) +#define STATIC_DIR(STRNAME, ...) UTIL9P_STATIC_DIR(PATH_COUNTER, STRNAME, __VA_ARGS__) + +#define API_FILE(STRNAME, SYMNAME, ...) \ + lo_box_##SYMNAME##_file_as_lib9p_srv_file(&((struct SYMNAME##_file){ \ + .name = STRNAME, \ + .pathnum = PATH_COUNTER \ + __VA_OPT__(,) __VA_ARGS__ \ + })) + +struct lib9p_srv_file root = + STATIC_DIR("", + STATIC_DIR("Documentation", + STATIC_FILE("YOUR_RIGHTS_AND_OBLIGATIONS.md", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_md_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_md_end), + STATIC_DIR("YOUR_RIGHTS_AND_OBLIGATIONS", + STATIC_FILE("agpl-3.0.txt", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_agpl_3_0_txt_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_agpl_3_0_txt_end), + STATIC_FILE("pico-sdk.bsd3.txt", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_pico_sdk_bsd3_txt_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_pico_sdk_bsd3_txt_end), + STATIC_FILE("printf.mit.txt", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_printf_mit_txt_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_printf_mit_txt_end), + STATIC_FILE("tinyusb.mit.txt", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_tinyusb_mit_txt_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_tinyusb_mit_txt_end), + STATIC_FILE("newlib.txt", + .data_start = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_newlib_txt_start, + .data_end = _binary_static_Documentation_YOUR_RIGHTS_AND_OBLIGATIONS_newlib_txt_end), + ), + STATIC_FILE("harness_rom_bin.txt", + .data_start = _binary_static_Documentation_harness_rom_bin_txt_start, + .data_end = _binary_static_Documentation_harness_rom_bin_txt_end), + STATIC_FILE("harness_flash_bin.txt", + .data_start = _binary_static_Documentation_harness_flash_bin_txt_start, + .data_end = _binary_static_Documentation_harness_flash_bin_txt_end), + STATIC_FILE("harness_uptime_txt.txt", + .data_start = _binary_static_Documentation_harness_uptime_txt_txt_start, + .data_end = _binary_static_Documentation_harness_uptime_txt_txt_end), + ), + STATIC_DIR("harness", + STATIC_FILE("rom.bin", + .data_start = (void*)0x00000000, + .data_size = 16*1024), + API_FILE("flash.bin", + flash), + API_FILE("uptime.txt", + uptime), + // TODO: system.log + // TODO: proc.txt + // TODO: cpuinfo.txt + // TODO: ctl + ), + STATIC_DIR("dut", + // TODO: hdmi.nut + // TODO: uart.txt + // TODO: usb-keyboard.txt + ), + ); -COROUTINE hello_world_cr(void *_chan) { +static lo_interface lib9p_srv_file get_root(struct lib9p_srv_ctx *LM_UNUSED(ctx), struct lib9p_s LM_UNUSED(treename)) { + return root; +} + +/* Code ***********************************************************************/ + +/* +static COROUTINE hello_world_cr(void *_chan) { const char *msg = "Hello world!\n"; usb_keyboard_rpc_t *chan = _chan; cr_begin(); @@ -26,17 +129,55 @@ COROUTINE hello_world_cr(void *_chan) { for (size_t i = 0;; i = (i+1) % strlen(msg)) { int result = usb_keyboard_rpc_send_req(chan, (uint32_t)msg[i]); if (result < 1) { - printf("error!\n"); + errorf("error sending rune U+%d", (uint32_t)msg[i]); break; } } cr_end(); } +*/ -int main() { - /* initialization *****************************************************/ - stdio_uart_init(); +struct { + struct rp2040_hwspi dev_spi; + struct w5500 dev_w5500; + usb_keyboard_rpc_t keyboard_chan; + uint16_t usb_serial[sizeof(uint64_t)*2]; /* UTF-16 */ + struct lib9p_srv srv; +} globals; + +static COROUTINE dhcp_cr(void *) { + cr_begin(); + + dhcp_client_main(lo_box_w5500_if_as_net_iface(&globals.dev_w5500), "harness"); + + cr_end(); +} + +static COROUTINE read9p_cr(void *) { + cr_begin(); + + lo_interface net_iface iface = lo_box_w5500_if_as_net_iface(&globals.dev_w5500); + lo_interface net_stream_listener listener = LO_CALL(iface, tcp_listen, LIB9P_DEFAULT_PORT_9FS); + + lib9p_srv_accept_and_read_loop(&globals.srv, listener); + + cr_end(); +} + +static COROUTINE write9p_cr(void *) { + cr_begin(); + + lib9p_srv_worker_loop(&globals.srv); + + cr_end(); +} + +const char *const hexdig = "0123456789ABCDEF"; +static_assert(_CONFIG_9P_MAX_REQS <= 16); + +COROUTINE init_cr(void *) { + cr_begin(); /* NOR flash chips have a (bog-?)standard "RUID" "Read Unique * ID" instruction; use our flash chip's unique ID as the @@ -52,16 +193,18 @@ int main() { (uint8_t)((flash_id32 >> 0) & 0xFF), }; - struct rp2040_hwspi dev_spi; - struct w5500 dev_w5500; - rp2040_hwspi_init(&dev_spi, "W5500", RP2040_HWSPI_0, + rp2040_hwspi_init(&globals.dev_spi, "W5500", RP2040_HWSPI_0, SPI_MODE_0, /* the W5500 supports mode 0 or mode 3 */ - 80*1000*1000, /* run at the W5500's max rate of 80MHz */ - 16, /* PIN_MISO */ - 19, /* PIN_MOSI */ - 18, /* PIN_CLK */ - 17); /* PIN_CS */ - w5500_init(&dev_w5500, "W5500", &dev_spi, + 42500000, /* min(w5500, hwspi); w5500=80MHz; hwspi=42.5MHz, see rp2040_hwspi.h for a comment about why this is so low */ + 30, /* W5500 datasheet says min(T_CS = SCSn High Time) = 30ns */ + 0, /* bogus write write data when doing a read */ + 16, /* PIN_MISO */ + 19, /* PIN_MOSI */ + 18, /* PIN_CLK */ + 17, /* PIN_CS */ + 0, 1, 2, 3); /* DMA channels */ + w5500_init(&globals.dev_w5500, "W5500", + lo_box_rp2040_hwspi_as_spi(&globals.dev_spi), 21, /* PIN_INTR */ 20, /* PIN_RESET */ ((struct net_eth_addr){{ @@ -71,17 +214,40 @@ int main() { flash_id24[0], flash_id24[1], flash_id24[2], }})); - usb_common_earlyinit(); + static_assert(sizeof(flash_id64)*2 == LM_ARRAY_LEN(globals.usb_serial)); + for (size_t i = 0; i < LM_ARRAY_LEN(globals.usb_serial); i++) + globals.usb_serial[i] = hexdig[(flash_id64 >> ((sizeof(flash_id64)*8)-((i+1)*4))) & 0xF]; + usb_common_earlyinit(globals.usb_serial, sizeof(globals.usb_serial)); usb_keyboard_init(); usb_common_lateinit(); + globals.keyboard_chan = (usb_keyboard_rpc_t){0}; + + globals.srv.rootdir = get_root; + /* set up coroutines **************************************************/ - coroutine_add(usb_common_cr, NULL); - usb_keyboard_rpc_t keyboard_chan = {0}; - coroutine_add(usb_keyboard_cr, &keyboard_chan); - //coroutine_add(hello_world_cr, &keyboard_chan); - //coroutine_add(dhcp_client_cr, NULL); + coroutine_add("usb_common", usb_common_cr, NULL); + coroutine_add("usb_keyboard", usb_keyboard_cr, &globals.keyboard_chan); + //coroutine_add("hello_world", hello_world_cr, &globals.keyboard_chan); + coroutine_add("dhcp", dhcp_cr, NULL); + for (int i = 0; i < _CONFIG_9P_MAX_CONNS; i++) { + char name[] = {'r', 'e', 'a', 'd', '-', hexdig[i], '\0'}; + coroutine_add(name, read9p_cr, NULL); + } + for (int i = 0; i < _CONFIG_9P_MAX_REQS; i++) { + char name[] = {'w', 'r', 'i', 't', 'e', '-', hexdig[i], '\0'}; + coroutine_add(name, write9p_cr, NULL); + } + + cr_exit(); +} - /* event loop *********************************************************/ +int main() { + bootclock = rp2040_hwtimer(0); + stdio_uart_init(); + /* char *hdr = "=" * (80-strlen("info : MAIN: ")); */ + infof("==================================================================="); + coroutine_add("init", init_cr, NULL); coroutine_main(); + assert_notreached("all coroutines exited"); } |