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JIRA: NIL-427
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,253 @@ | ||
| /* | ||
| * Phoenix-RTOS | ||
| * | ||
| * Operating system loader | ||
| * | ||
| * connect/bridge two serial devices (USB, UART or PIPE) | ||
| * | ||
| * Copyright 2024 Phoenix Systems | ||
| * Author: Gerard Swiderski | ||
| * | ||
| * This file is part of Phoenix-RTOS. | ||
| * | ||
| * %LICENSE% | ||
| */ | ||
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| #include <devices/devs.h> | ||
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| #include "cmd.h" | ||
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| typedef struct { | ||
| int major, minor; | ||
| } pair_t; | ||
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| static int getPair(pair_t *p, char *str) | ||
| { | ||
| char *endptr; | ||
| p->major = lib_strtol(str, &endptr, 0); | ||
| if (((*endptr != ':') && (*endptr != '.')) || (str == endptr) || (p->major < 0)) { | ||
| return -1; | ||
| } | ||
| str = ++endptr; | ||
| p->minor = lib_strtol(str, &endptr, 0); | ||
| return ((*endptr != '\0') || (str == endptr) || (p->minor < 0)) ? -1 : 0; | ||
| } | ||
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| static int validatePair(pair_t *p) | ||
| { | ||
| int majors[] = { DEV_UART, DEV_USB, DEV_PIPE }; | ||
| unsigned int ctx = 0; | ||
| unsigned int major = 0; | ||
| unsigned int minor = 0; | ||
| int i, res = -1; | ||
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| if ((p->major < 0) && (p->minor < 0)) { | ||
| return -1; | ||
| } | ||
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| for (i = 0; i < sizeof(majors) / sizeof(majors[0]); i++) { | ||
| if (p->major == majors[i]) { | ||
| res = 0; | ||
| break; | ||
| } | ||
| } | ||
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| while (res == 0) { | ||
| const dev_t *dev = devs_iterNext(&ctx, &major, &minor); | ||
| if (dev == DEVS_ITER_STOP) { | ||
| res = -1; | ||
| break; | ||
| } | ||
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| if ((dev != NULL) && (p->major == major) && (p->minor == minor)) { | ||
| res = 0; | ||
| break; | ||
| } | ||
| } | ||
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| return res; | ||
| } | ||
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| static void bufprint(const char *prefix, void *data, size_t len) | ||
| { | ||
| u8 *ptr = data; | ||
| size_t todo = len; | ||
| lib_printf("%s: ", prefix); | ||
| while (todo-- != 0) { | ||
| lib_printf("%02X ", *(ptr++)); | ||
| } | ||
| lib_printf("\n"); | ||
| } | ||
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| static void cmd_bridgeInfo(void) | ||
| { | ||
| lib_printf("bridges two serial devices (UART, USB or PIPE)"); | ||
| } | ||
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| static void print_usage(const char *name) | ||
| { | ||
| lib_printf( | ||
| "Usage: %s <options>\n" | ||
| "\tConnects two serial devices (A)TX/RX <--> RX/TX(B)\n" | ||
| "\t-a <major:minor> device A is required (L prefix enables A dump)\n" | ||
| "\t-b <major:minor> device B is required (L prefix enables B dump)\n" | ||
| "\t-A <baud> optional baud speed of device A\n" | ||
| "\t-B <baud> optional baud speed of device B\n" | ||
| "\t-c <major:minor> use device C as monitor device\n" | ||
| "\t-C use console as default device '-c'\n", | ||
| name); | ||
| } | ||
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| static int cmd_bridge(int argc, char *argv[]) | ||
| { | ||
| u8 buf[64]; | ||
| ssize_t res; | ||
| int tmp, spda = -1, spdb = -1; | ||
| int loga = 0, logb = 0, con = 0; | ||
| pair_t deva = { -1, -1 }; | ||
| pair_t devb = { -1, -1 }; | ||
| pair_t devc = { -1, -1 }; | ||
| char *endptr; | ||
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| lib_printf("\n"); | ||
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| if (argc == 1) { | ||
| print_usage(argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
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| for (;;) { | ||
| int opt = lib_getopt(argc, argv, "a:A:b:B:c:C"); | ||
| if (opt == -1) { | ||
| break; | ||
| } | ||
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| switch (opt) { | ||
| case 'a': | ||
| if ((optarg[0] | 0x20) == 'l') { | ||
| optarg++; | ||
| loga = 1; | ||
| } | ||
| if (getPair(&deva, optarg) < 0) { | ||
| log_error("%s: Invalid arguments", argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| break; | ||
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| case 'b': | ||
| if ((optarg[0] | 0x20) == 'l') { | ||
| optarg++; | ||
| logb = 1; | ||
| } | ||
| if (getPair(&devb, optarg) < 0) { | ||
| log_error("%s: Invalid arguments", argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| break; | ||
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| case 'C': | ||
| con = 1; | ||
| break; | ||
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| case 'c': | ||
| con = 1; | ||
| if (optarg != NULL) { | ||
| if (getPair(&devc, optarg) < 0) { | ||
| log_error("%s: Invalid arguments", argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| } | ||
| break; | ||
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| case 'A': | ||
| tmp = (int)lib_strtol(optarg, &endptr, 10); | ||
| if ((*endptr != '\0') || (tmp < 0)) { | ||
| log_error("%s: Invalid arguments", argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| spda = tmp; | ||
| break; | ||
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| case 'B': | ||
| tmp = (int)lib_strtol(optarg, &endptr, 10); | ||
| if ((*endptr != '\0') || (tmp < 0)) { | ||
| log_error("%s: Invalid arguments", argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| spdb = tmp; | ||
| break; | ||
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| case 'h': | ||
| default: | ||
| print_usage(argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
| } | ||
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| if ((validatePair(&deva) < 0) || (validatePair(&devb) < 0) || | ||
| ((devc.major >= 0) && (validatePair(&devc) < 0))) { | ||
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| log_error("%s: Invalid device pair need to be UART, USB or PIPE\n", argv[0]); | ||
| print_usage(argv[0]); | ||
| return CMD_EXIT_FAILURE; | ||
| } | ||
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| if (spda >= 0) { | ||
| devs_control(deva.major, deva.minor, DEV_CONTROL_SETBAUD, &spda); | ||
| } | ||
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| if (spdb >= 0) { | ||
| devs_control(devb.major, devb.minor, DEV_CONTROL_SETBAUD, &spdb); | ||
| } | ||
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| if (con != 0) { | ||
| lib_printf("Bridged devices: A (%d:%d @ %d) <---> (%d:%d @ %d) B\n", | ||
| deva.major, deva.minor, spda, devb.major, devb.minor, spdb); | ||
| lib_printf("Press '!' to terminate connection\n"); | ||
| } | ||
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| for (;;) { | ||
| if (con != 0) { | ||
| u8 c = 0; | ||
| if ((devc.major < 0) || (devc.minor < 0)) { | ||
| lib_consoleGetc((char *)&c, 0); | ||
| } | ||
| else { | ||
| devs_read(devc.major, devc.minor, 0, &c, 1, 0); | ||
| } | ||
| if (c == '!') { | ||
| break; | ||
| } | ||
| } | ||
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| res = devs_read(deva.major, deva.minor, 0, buf, sizeof(buf), 0); | ||
| if (res > 0) { | ||
| devs_write(devb.major, devb.minor, 0, buf, res); | ||
| if (loga != 0) { | ||
| bufprint("A->B", buf, res); | ||
| } | ||
| } | ||
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| res = devs_read(devb.major, devb.minor, 0, buf, sizeof(buf), 0); | ||
| if (res > 0) { | ||
| devs_write(deva.major, deva.minor, 0, buf, res); | ||
| if (logb != 0) { | ||
| bufprint("B->A", buf, res); | ||
| } | ||
| } | ||
| } | ||
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| return CMD_EXIT_SUCCESS; | ||
| } | ||
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| static const cmd_t bridge_cmd __attribute__((section("commands"), used)) = { | ||
| .name = "bridge", .run = cmd_bridge, .info = cmd_bridgeInfo | ||
| }; |
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