[z180-stamp.git] / avr / cmd_boot.c

/*
 * (C) Copyright 2014-2016 Leo C. <erbl259-lmu@yahoo.de>
 *
 * (C) Copyright 2000-2003
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0
 */

/*
 * Misc boot support
 */
#include "cmd_boot.h"
#include <ctype.h>
#include <util/atomic.h>

#include "cli_readline.h"	/* console_buffer[] */
#include "cli.h"			/* run_command() */
#include "env.h"
#include "eval_arg.h"
#include "con-utils.h"
#include "getopt-min.h"
#include "z80-if.h"
#include "z180-serv.h"	/* restart_z180_serv() */
#include "debug.h"

/* ugly hack to get Z180 loadfile into flash memory */
#define const const FLASH
#include "../z180/hdrom.h"
#include "../z180/cfboot.h"
#undef const


static void z80_load_mem(int_fast8_t verbosity,
				const FLASH unsigned char data[],
				const FLASH unsigned long *sections,
				const FLASH unsigned long address[],
				const FLASH unsigned long length_of_sections[])
{
	uint32_t sec_base = 0;

	if (verbosity > 1)
		printf_P(PSTR("Loading Z180 memory... \n"));

	for (unsigned sec = 0; sec < *sections; sec++) {
		if (verbosity > 0) {
			printf_P(PSTR("   From: 0x%.5lX to: 0x%.5lX    (%5li bytes)\n"),
					address[sec],
					address[sec]+length_of_sections[sec] - 1,
					length_of_sections[sec]);
		}

		z80_write_block_P((const FLASH unsigned char *) &data[sec_base],  /* src */
				address[sec],                  /* dest */
				length_of_sections[sec]);      /* len */
		sec_base += length_of_sections[sec];
	}
}

command_ret_t do_loadf(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
{
	ERRNUM res = ESUCCESS;

	if (z80_bus_state() & ZST_RUNNING) {
		res = ERUNNING;
	} else if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
		res = EBUSTO;
	}
	if (res != ESUCCESS)
		cmd_error(CMD_RET_FAILURE, res, NULL);

	z80_load_mem(2, hdrom,
				&hdrom_sections,
				hdrom_address,
				hdrom_length_of_sections);

	z80_bus_cmd(Release);

	return CMD_RET_SUCCESS;
}


void print_vars(char *title)
{
	uint8_t buf[5];
	zstate_t state = z80_bus_state();

	if((state & ZST_ACQUIRED) == 0)
		z80_bus_cmd(Request);

	z80_read_block(buf,	9, sizeof buf);

	if((state & ZST_ACQUIRED) == 0)
		z80_bus_cmd(Release);

	printf_P(PSTR("%s: stage: %d, flag: 0x%.02x, result: %d, IDE stat/error: 0x%.02x/0x%.02x\n"),
				title, buf[0], buf[1], buf[2], buf[3], buf[4]);
}


/*
 *  bootcf [options]
 *
 *		-a	address			(100h)
 *		-s	start sector	(0)
 *		-c	sector count	(7)
 *		-i	Partition id	(52)
 *		-n  load only
 *		-t	timeout			(10000)
 * 		-v	verbose
 */

command_ret_t do_bootcf(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char * const argv[])
{
	struct {
		uint8_t  jr[2];
		uint16_t loadaddr;
		uint8_t  sec_start;
		uint8_t  sec_cnt;
		uint8_t  part_id;
		uint16_t timeout;
		uint8_t  stages;
	} boot_param;

	struct {
		uint8_t  stages;
		uint8_t  done;
		uint8_t  result;
		uint8_t  ide_stat;
		uint8_t  ide_error;
	} boot_res;

	int_fast8_t verbosity = 0;
	uint8_t default_stages;
	uint32_t val;
	ERRNUM res = ESUCCESS;

	/* get default values */
	memcpy_P(&boot_param, cfboot, sizeof boot_param);
	default_stages = boot_param.stages;

	/* reset getopt() */
	optind = 0;

	int opt;
	while ((opt = getopt(argc, argv, PSTR("vna:s:c:t:i:"))) != -1) {
		switch (opt) {
		case 'v':
			verbosity++;
			break;
		case 'n':
			if (boot_param.stages > 0)
				boot_param.stages--;
			break;
		case 'a':
			val = eval_arg(optarg, NULL);
			if (val < 0x100 || val > 0xFE00) {
				printf_P(PSTR("Address out of range: 0x%.4lX\n"), val);
				return CMD_RET_FAILURE;
			}
			boot_param.loadaddr = val;
			break;
		case 's':
			val = eval_arg(optarg, NULL);
			if (val > 255) {
				printf_P(PSTR("Start sector out of range: 0x%lX\n"), val);
				return CMD_RET_FAILURE;
			}
			boot_param.sec_start = val;
			break;
		case 'c':
			val = eval_arg(optarg, NULL);
			if (val > 127) {
				printf_P(PSTR("Sector count out of range: 0x%lX\n"), val);
				return CMD_RET_FAILURE;
			}
			boot_param.sec_cnt = val;
			break;
		case 't':
			val = eval_arg(optarg, NULL);
			if (val < 0x1 || val > 0xFFFF) {
				printf_P(PSTR("Timeout value out of range: 0x%lX\n"), val);
				return CMD_RET_FAILURE;
			}
			boot_param.timeout = val;
			break;
		case 'i':
			val = eval_arg(optarg, NULL);
			if (val < 0x01 || val > 0xFF) {
				printf_P(PSTR("Partition id out of range: 0x%lX\n"), val);
				return CMD_RET_FAILURE;
			}
			boot_param.part_id = val;
			break;
		default: /* '?' */
			return CMD_RET_USAGE;
		}
	}

	/* remaining arguments */
	argc -= optind;
	if (argc) {
		my_puts_P(PSTR("Argument error!\n"));
		return CMD_RET_USAGE;
	}

	if ((val = (uint32_t) boot_param.loadaddr + boot_param.sec_cnt * 512) >= 0xFF00) {
		printf_P(PSTR("Top address out of range: 0x%.4lX\n"), val);
		return CMD_RET_FAILURE;
	}

	if (z80_bus_state() & ZST_RUNNING) {
		res = ERUNNING;
	} else if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
		res = EBUSTO;
	}
	if (res != ESUCCESS)
		cmd_error(CMD_RET_FAILURE, res, NULL);

	z80_load_mem(verbosity, cfboot,
				&cfboot_sections,
				cfboot_address,
				cfboot_length_of_sections);

	z80_write_block((const uint8_t *) &boot_param,
				cfboot_address[0], sizeof boot_param);
	z80_bus_cmd(Release);

	if (boot_param.stages == 0) {
		printf_P(PSTR("Bootloader loaded at: 0x%.4X\n"), (uint16_t) cfboot_address[0]);
	} else {
		printf_P(PSTR("Executing %d of %d Bootloader stages...\n"),
				boot_param.stages, default_stages);

		z80_bus_cmd(Run);
		z80_bus_cmd(Release);

		clear_ctrlc();		/* forget any previous Control C */
		for (boot_res.done = 0; boot_res.done != 0xFF;) {
			_delay_ms(8);
			/* check for ctrl-c to abort... */
			if (had_ctrlc() || ctrlc()) {
				break;
			}
			z80_bus_cmd(Request);
			z80_read_block((uint8_t *) &boot_res,
					cfboot_address[0]+sizeof boot_param - 1, sizeof boot_res);
			z80_bus_cmd(Release);
		}

		if (boot_res.done != 0xFF) {
			z80_bus_cmd(Reset);
			my_puts_P(PSTR("Abort\n"));
		} else {
			if (boot_param.stages == default_stages &&
					boot_res.stages == 0 &&
					boot_res.result == 0) {
				my_puts_P(PSTR("Booting...\n"));
			} else {
				z80_bus_cmd(Reset);
				boot_res.stages++;
				printf_P(PSTR("Bootloader stopped at stage %d, result: %d, IDE stat/error: 0x%.02x/0x%.02x\n"),
					boot_param.stages - boot_res.stages,
					boot_res.result, boot_res.ide_stat, boot_res.ide_error);
			}
		}
	}

	return CMD_RET_SUCCESS;
}

command_ret_t do_busreq_pulse(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char * const argv[])
{
	uint16_t count=1;

	if (!(z80_bus_state() & ZST_RUNNING)) {
		printf_P(PSTR("## CPU is not running!\n"));
		return CMD_RET_FAILURE;
	}

	if (argc > 1)
		count = (uint16_t) eval_arg(argv[1], NULL);

	z80_bus_cmd(Request);
	while (count--)
		z80_bus_cmd(M_Cycle);

	return CMD_RET_SUCCESS;
}


command_ret_t do_go(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char * const argv[])
{
	uint32_t addr;

	if (argc < 2)
		return CMD_RET_USAGE;
	addr = eval_arg(argv[1], NULL);
	if (addr >= (1UL<<16)) {
		printf_P(PSTR("## Startaddress 0x%05lx too high.\n"
			"   (Out of logical address space (0x00000-0x0ffff))\n"),
			addr);
		return CMD_RET_FAILURE;
	}

	if (z80_bus_state() & ZST_RUNNING) {
		printf_P(PSTR("## CPU already running!\n"));
		return CMD_RET_FAILURE;
	}

	printf_P(PSTR("## Starting application at 0x%04lx ...\n"), addr);

	if (addr != 0) {
		uint8_t tmp[3];

		z80_bus_cmd(Request);
		z80_read_block (tmp, 0, 3);
		z80_write(0, 0xc3);
		z80_write(1, addr);
		z80_write(2, (addr >> 8));

		z80_bus_cmd(Run);
		z80_bus_cmd(M_Cycle);
		z80_bus_cmd(M_Cycle);
		z80_write_block(tmp, 0, 3);
	} else
		z80_bus_cmd(Run);

	z80_bus_cmd(Release);

	return CMD_RET_SUCCESS;
}

static
void reset_cpu(bus_cmd_t mode)
{
	restart_z180_serv();
	z80_bus_cmd(mode);
}


command_ret_t do_reset(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
{
	printf_P(PSTR("CPU now in reset state.\n"));

	reset_cpu(Reset);
	return CMD_RET_SUCCESS;
}

command_ret_t do_restart(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
{
	reset_cpu(Restart);

	return CMD_RET_SUCCESS;
}

static
void print_con_usage(char esc)
{	printf_P(PSTR("\n"
		"------------------------------------------------\n"
		" ?,H - This Help\n"
		" Q,X - Return to command line\n"
		" R   - Reset (Restart) CPU\n"
		" :   - Execute monitor command\n"
		" \\   - code input:\n"
		"       \\nnn   3 decimal digits character code\n"
		"       \\Xhh   2 hexadecimal digits character code\n"
		" ^%c  - (Escape char) Type again to send itself\n"
		"key>"
	), esc + 0x40);
}

command_ret_t do_console(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
{
	int ch;
	uint8_t pending;
	uint8_t code = 0;
	uint8_t state = 0;
	char esc_char = (char) getenv_ulong(PSTR(ENV_ESC_CHAR), 16, CONFIG_ESC_CHAR);

	printf_P(PSTR("Connecting to CPU. Escape character is '^%c'.\n"),
					esc_char + 0x40);

	while (1) {

		ATOMIC_BLOCK(ATOMIC_FORCEON) {
			pending = (Stat & S_CON_PENDING) != 0;
			Stat &= ~S_CON_PENDING;
		}
		if (pending) {
			uint8_t count = 100;
			while ((ch = z80_memfifo_getc(fifo_conout)) >= 0 && --count)
				putchar(ch);
		}

		if ((ch = my_getchar(0)) >= 0) {
			switch (state) {
			case 0:
				if (ch == esc_char) {
					state = 1;
					/* TODO: Timer starten */
				} else {
					z80_memfifo_putc(fifo_conin, ch);
				}
				break;
			case 2:
				my_puts_P(PSTR("\n"
				  "------------------------------------------------\n"));
			case 1:
				state = 0;
				switch (toupper(ch)) {

				case '?':
				case 'H':
					print_con_usage(esc_char);
					state = 2;
					break;

				case 'R':
					reset_cpu(Restart);
					break;

				case 'X':
				case 'Q':
					putchar('\n');
					goto quit;
					break;

				case ':':
						putchar('\n');
						int cmdlen = cli_readline(PSTR(": "), 1);
						if (cmdlen > 0)
							run_command(console_buffer, 0);
					break;

				case '\\':
					code = 0;
					state = 3;
					break;

				default:
					if (ch == esc_char)
						z80_memfifo_putc(fifo_conin, ch);
					break;
				}
				break;
			case 3:
				if (toupper(ch) == 'X') {
					state = 6;
					break;
				}
				/* fall thru */
			case 4:
			case 5:
				if (isdigit(ch)) {
					code = code * 10 + ch - '0';
					state++;
				} else {
					if (state > 3)
						z80_memfifo_putc(fifo_conin, code);
					z80_memfifo_putc(fifo_conin, ch);
					state = 0;
				}
				if (state > 5) {
					z80_memfifo_putc(fifo_conin, code);
					state = 0;
				}
				break;
			case 6:
			case 7:
				if (isxdigit(ch)) {
					ch = toupper(ch);
					if (ch >= 'A')
						ch -= 'A' - 10;
					code = code * 16 + ch - '0';
					state++;
				}else {
					if (state > 6)
						z80_memfifo_putc(fifo_conin, code);
					z80_memfifo_putc(fifo_conin, ch);
					state = 0;
				}
				if (state > 7) {
					z80_memfifo_putc(fifo_conin, code);
					state = 0;
				}
				break;
			}
		}
	}
quit:
	return CMD_RET_SUCCESS;
}
Commit	Line	Data
35edb766	1	/*
04b3ea0e	2	* (C) Copyright 2014-2016 Leo C. <erbl259-lmu@yahoo.de>
35edb766 L	3	*
	4	* (C) Copyright 2000-2003
	5	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	6	*
19a463f4	7	* SPDX-License-Identifier: GPL-2.0
35edb766	8	*/
534e1dfc L	9
	10	/*
	11	* Misc boot support
	12	*/
7eecbdac	13	#include "cmd_boot.h"
8a7decea	14	#include <ctype.h>
89adce76	15	#include <util/atomic.h>
534e1dfc	16
04b3ea0e L	17	#include "cli_readline.h" /* console_buffer[] */
04b3ea0e L	18	#include "cli.h" /* run_command() */
612a6965	19	#include "env.h"
2d914b45	20	#include "eval_arg.h"
89adce76	21	#include "con-utils.h"
a2907f2e	22	#include "getopt-min.h"
534e1dfc	23	#include "z80-if.h"
cb4fb1ed	24	#include "z180-serv.h" /* restart_z180_serv() */
8a7decea	25	#include "debug.h"
534e1dfc L	26
	27	/* ugly hack to get Z180 loadfile into flash memory */
	28	#define const const FLASH
	29	#include "../z180/hdrom.h"
a2907f2e	30	#include "../z180/cfboot.h"
534e1dfc L	31	#undef const
	32
	33
	34
a2907f2e L	35	static void z80_load_mem(int_fast8_t verbosity,
	36	const FLASH unsigned char data[],
	37	const FLASH unsigned long *sections,
	38	const FLASH unsigned long address[],
	39	const FLASH unsigned long length_of_sections[])
534e1dfc	40	{
a2907f2e L	41	uint32_t sec_base = 0;
	42
	43	if (verbosity > 1)
	44	printf_P(PSTR("Loading Z180 memory... \n"));
	45
	46	for (unsigned sec = 0; sec < *sections; sec++) {
	47	if (verbosity > 0) {
	48	printf_P(PSTR(" From: 0x%.5lX to: 0x%.5lX (%5li bytes)\n"),
	49	address[sec],
	50	address[sec]+length_of_sections[sec] - 1,
	51	length_of_sections[sec]);
	52	}
	53
	54	z80_write_block_P((const FLASH unsigned char ) &data[sec_base], / src */
	55	address[sec], /* dest */
	56	length_of_sections[sec]); /* len */
	57	sec_base += length_of_sections[sec];
534e1dfc L	58	}
	59	}
	60
5e8ac5e0	61	command_ret_t do_loadf(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char const argv[] UNUSED)
534e1dfc	62	{
5e8ac5e0	63	ERRNUM res = ESUCCESS;
534e1dfc	64
6035a17b	65	if (z80_bus_state() & ZST_RUNNING) {
5e8ac5e0 L	66	res = ERUNNING;
	67	} else if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
	68	res = EBUSTO;
612a6965	69	}
5e8ac5e0 L	70	if (res != ESUCCESS)
	71	cmd_error(CMD_RET_FAILURE, res, NULL);
	72
a2907f2e L	73	z80_load_mem(2, hdrom,
	74	&hdrom_sections,
	75	hdrom_address,
	76	hdrom_length_of_sections);
	77
612a6965	78	z80_bus_cmd(Release);
6035a17b	79
d0581f88	80	return CMD_RET_SUCCESS;
534e1dfc L	81	}
	82
	83
a2907f2e L	84	void print_vars(char *title)
	85	{
	86	uint8_t buf[5];
	87	zstate_t state = z80_bus_state();
	88
	89	if((state & ZST_ACQUIRED) == 0)
	90	z80_bus_cmd(Request);
	91
	92	z80_read_block(buf, 9, sizeof buf);
	93
	94	if((state & ZST_ACQUIRED) == 0)
	95	z80_bus_cmd(Release);
	96
	97	printf_P(PSTR("%s: stage: %d, flag: 0x%.02x, result: %d, IDE stat/error: 0x%.02x/0x%.02x\n"),
	98	title, buf[0], buf[1], buf[2], buf[3], buf[4]);
	99	}
	100
	101
	102	/*
	103	* bootcf [options]
	104	*
	105	* -a address (100h)
	106	* -s start sector (0)
	107	* -c sector count (7)
	108	* -i Partition id (52)
	109	* -n load only
	110	* -t timeout (10000)
	111	* -v verbose
	112	*/
	113
5e8ac5e0	114	command_ret_t do_bootcf(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char const argv[])
a2907f2e L	115	{
	116	struct {
	117	uint8_t jr[2];
	118	uint16_t loadaddr;
	119	uint8_t sec_start;
	120	uint8_t sec_cnt;
	121	uint8_t part_id;
	122	uint16_t timeout;
16af58ea	123	uint8_t stages;
a2907f2e L	124	} boot_param;
	125
	126	struct {
16af58ea	127	uint8_t stages;
a2907f2e L	128	uint8_t done;
	129	uint8_t result;
	130	uint8_t ide_stat;
	131	uint8_t ide_error;
	132	} boot_res;
	133
	134	int_fast8_t verbosity = 0;
16af58ea	135	uint8_t default_stages;
a2907f2e	136	uint32_t val;
5e8ac5e0	137	ERRNUM res = ESUCCESS;
a2907f2e L	138
	139	/* get default values */
	140	memcpy_P(&boot_param, cfboot, sizeof boot_param);
16af58ea	141	default_stages = boot_param.stages;
a2907f2e L	142
	143	/* reset getopt() */
	144	optind = 0;
	145
	146	int opt;
	147	while ((opt = getopt(argc, argv, PSTR("vna:s:c:t:i:"))) != -1) {
	148	switch (opt) {
	149	case 'v':
	150	verbosity++;
	151	break;
	152	case 'n':
16af58ea L	153	if (boot_param.stages > 0)
16af58ea L	154	boot_param.stages--;
a2907f2e L	155	break;
a2907f2e L	156	case 'a':
2d914b45	157	val = eval_arg(optarg, NULL);
a2907f2e L	158	if (val < 0x100 \|\| val > 0xFE00) {
	159	printf_P(PSTR("Address out of range: 0x%.4lX\n"), val);
	160	return CMD_RET_FAILURE;
	161	}
	162	boot_param.loadaddr = val;
	163	break;
	164	case 's':
2d914b45	165	val = eval_arg(optarg, NULL);
a2907f2e L	166	if (val > 255) {
	167	printf_P(PSTR("Start sector out of range: 0x%lX\n"), val);
	168	return CMD_RET_FAILURE;
	169	}
	170	boot_param.sec_start = val;
	171	break;
	172	case 'c':
2d914b45	173	val = eval_arg(optarg, NULL);
a2907f2e L	174	if (val > 127) {
	175	printf_P(PSTR("Sector count out of range: 0x%lX\n"), val);
	176	return CMD_RET_FAILURE;
	177	}
	178	boot_param.sec_cnt = val;
	179	break;
	180	case 't':
2d914b45	181	val = eval_arg(optarg, NULL);
a2907f2e L	182	if (val < 0x1 \|\| val > 0xFFFF) {
	183	printf_P(PSTR("Timeout value out of range: 0x%lX\n"), val);
	184	return CMD_RET_FAILURE;
	185	}
16af58ea	186	boot_param.timeout = val;
a2907f2e L	187	break;
a2907f2e L	188	case 'i':
2d914b45	189	val = eval_arg(optarg, NULL);
a2907f2e L	190	if (val < 0x01 \|\| val > 0xFF) {
	191	printf_P(PSTR("Partition id out of range: 0x%lX\n"), val);
	192	return CMD_RET_FAILURE;
	193	}
	194	boot_param.part_id = val;
	195	break;
	196	default: /* '?' */
	197	return CMD_RET_USAGE;
	198	}
	199	}
	200
	201	/* remaining arguments */
	202	argc -= optind;
	203	if (argc) {
	204	my_puts_P(PSTR("Argument error!\n"));
	205	return CMD_RET_USAGE;
	206	}
	207
	208	if ((val = (uint32_t) boot_param.loadaddr + boot_param.sec_cnt * 512) >= 0xFF00) {
	209	printf_P(PSTR("Top address out of range: 0x%.4lX\n"), val);
	210	return CMD_RET_FAILURE;
	211	}
	212
a2907f2e	213	if (z80_bus_state() & ZST_RUNNING) {
5e8ac5e0 L	214	res = ERUNNING;
	215	} else if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
	216	res = EBUSTO;
a2907f2e	217	}
5e8ac5e0 L	218	if (res != ESUCCESS)
	219	cmd_error(CMD_RET_FAILURE, res, NULL);
	220
a2907f2e L	221	z80_load_mem(verbosity, cfboot,
	222	&cfboot_sections,
	223	cfboot_address,
	224	cfboot_length_of_sections);
	225
	226	z80_write_block((const uint8_t *) &boot_param,
	227	cfboot_address[0], sizeof boot_param);
	228	z80_bus_cmd(Release);
	229
16af58ea	230	if (boot_param.stages == 0) {
a2907f2e L	231	printf_P(PSTR("Bootloader loaded at: 0x%.4X\n"), (uint16_t) cfboot_address[0]);
	232	} else {
	233	printf_P(PSTR("Executing %d of %d Bootloader stages...\n"),
16af58ea	234	boot_param.stages, default_stages);
a2907f2e L	235
	236	z80_bus_cmd(Run);
	237	z80_bus_cmd(Release);
	238
	239	clear_ctrlc(); /* forget any previous Control C */
	240	for (boot_res.done = 0; boot_res.done != 0xFF;) {
	241	_delay_ms(8);
	242	/* check for ctrl-c to abort... */
	243	if (had_ctrlc() \|\| ctrlc()) {
	244	break;
	245	}
	246	z80_bus_cmd(Request);
	247	z80_read_block((uint8_t *) &boot_res,
	248	cfboot_address[0]+sizeof boot_param - 1, sizeof boot_res);
	249	z80_bus_cmd(Release);
	250	}
	251
	252	if (boot_res.done != 0xFF) {
	253	z80_bus_cmd(Reset);
	254	my_puts_P(PSTR("Abort\n"));
	255	} else {
16af58ea L	256	if (boot_param.stages == default_stages &&
	257	boot_res.stages == 0 &&
	258	boot_res.result == 0) {
a2907f2e L	259	my_puts_P(PSTR("Booting...\n"));
	260	} else {
	261	z80_bus_cmd(Reset);
16af58ea	262	boot_res.stages++;
a2907f2e	263	printf_P(PSTR("Bootloader stopped at stage %d, result: %d, IDE stat/error: 0x%.02x/0x%.02x\n"),
16af58ea	264	boot_param.stages - boot_res.stages,
a2907f2e L	265	boot_res.result, boot_res.ide_stat, boot_res.ide_error);
	266	}
	267	}
	268	}
	269
	270	return CMD_RET_SUCCESS;
	271	}
	272
5e8ac5e0	273	command_ret_t do_busreq_pulse(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char const argv[])
534e1dfc	274	{
f338df2a	275	uint16_t count=1;
534e1dfc	276
6035a17b	277	if (!(z80_bus_state() & ZST_RUNNING)) {
f338df2a	278	printf_P(PSTR("## CPU is not running!\n"));
d0581f88	279	return CMD_RET_FAILURE;
534e1dfc L	280	}
534e1dfc L	281
f338df2a	282	if (argc > 1)
2d914b45	283	count = (uint16_t) eval_arg(argv[1], NULL);
f338df2a	284
62f624d3	285	z80_bus_cmd(Request);
f338df2a	286	while (count--)
62f624d3	287	z80_bus_cmd(M_Cycle);
534e1dfc	288
d0581f88	289	return CMD_RET_SUCCESS;
f338df2a L	290	}
	291
	292
5e8ac5e0	293	command_ret_t do_go(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char const argv[])
f338df2a L	294	{
	295	uint32_t addr;
	296
f338df2a L	297	if (argc < 2)
f338df2a L	298	return CMD_RET_USAGE;
2d914b45	299	addr = eval_arg(argv[1], NULL);
f338df2a	300	if (addr >= (1UL<<16)) {
534e1dfc L	301	printf_P(PSTR("## Startaddress 0x%05lx too high.\n"
	302	" (Out of logical address space (0x00000-0x0ffff))\n"),
	303	addr);
d0581f88	304	return CMD_RET_FAILURE;
6035a17b	305	}
f338df2a	306
6035a17b	307	if (z80_bus_state() & ZST_RUNNING) {
5e8ac5e0	308	printf_P(PSTR("## CPU already running!\n"));
d0581f88	309	return CMD_RET_FAILURE;
534e1dfc L	310	}
534e1dfc L	311
f338df2a L	312	printf_P(PSTR("## Starting application at 0x%04lx ...\n"), addr);
	313
	314	if (addr != 0) {
	315	uint8_t tmp[3];
6035a17b	316
62f624d3	317	z80_bus_cmd(Request);
19a463f4	318	z80_read_block (tmp, 0, 3);
f338df2a L	319	z80_write(0, 0xc3);
	320	z80_write(1, addr);
	321	z80_write(2, (addr >> 8));
	322
62f624d3 L	323	z80_bus_cmd(Run);
	324	z80_bus_cmd(M_Cycle);
	325	z80_bus_cmd(M_Cycle);
19a463f4	326	z80_write_block(tmp, 0, 3);
f338df2a	327	} else
62f624d3	328	z80_bus_cmd(Run);
6035a17b	329
62f624d3	330	z80_bus_cmd(Release);
f338df2a	331
d0581f88	332	return CMD_RET_SUCCESS;
534e1dfc L	333	}
534e1dfc L	334
8a7decea L	335	static
	336	void reset_cpu(bus_cmd_t mode)
	337	{
	338	restart_z180_serv();
	339	z80_bus_cmd(mode);
	340	}
	341
	342
5e8ac5e0	343	command_ret_t do_reset(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char const argv[] UNUSED)
534e1dfc	344	{
612a6965	345	printf_P(PSTR("CPU now in reset state.\n"));
534e1dfc	346
8a7decea	347	reset_cpu(Reset);
d0581f88	348	return CMD_RET_SUCCESS;
534e1dfc L	349	}
534e1dfc L	350
5e8ac5e0	351	command_ret_t do_restart(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char const argv[] UNUSED)
534e1dfc	352	{
8a7decea	353	reset_cpu(Restart);
534e1dfc	354
d0581f88	355	return CMD_RET_SUCCESS;
534e1dfc L	356	}
534e1dfc L	357
8a7decea L	358	static
	359	void print_con_usage(char esc)
	360	{ printf_P(PSTR("\n"
	361	"------------------------------------------------\n"
	362	" ?,H - This Help\n"
8a7decea	363	" Q,X - Return to command line\n"
b08e079d L	364	" R - Reset (Restart) CPU\n"
b08e079d L	365	" : - Execute monitor command\n"
612a6965 L	366	" \\ - code input:\n"
	367	" \\nnn 3 decimal digits character code\n"
	368	" \\Xhh 2 hexadecimal digits character code\n"
	369	" ^%c - (Escape char) Type again to send itself\n"
8a7decea L	370	"key>"
	371	), esc + 0x40);
	372	}
89adce76	373
5e8ac5e0	374	command_ret_t do_console(cmd_tbl_t cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char const argv[] UNUSED)
89adce76 L	375	{
89adce76 L	376	int ch;
8a7decea	377	uint8_t pending;
8a7decea L	378	uint8_t code = 0;
8a7decea L	379	uint8_t state = 0;
612a6965	380	char esc_char = (char) getenv_ulong(PSTR(ENV_ESC_CHAR), 16, CONFIG_ESC_CHAR);
ea6971b8	381
b08e079d L	382	printf_P(PSTR("Connecting to CPU. Escape character is '^%c'.\n"),
b08e079d L	383	esc_char + 0x40);
89adce76 L	384
	385	while (1) {
	386
8a7decea	387	ATOMIC_BLOCK(ATOMIC_FORCEON) {
89adce76 L	388	pending = (Stat & S_CON_PENDING) != 0;
	389	Stat &= ~S_CON_PENDING;
	390	}
3ad4143b L	391	if (pending) {
	392	uint8_t count = 100;
	393	while ((ch = z80_memfifo_getc(fifo_conout)) >= 0 && --count)
89adce76	394	putchar(ch);
3ad4143b	395	}
89adce76 L	396
	397	if ((ch = my_getchar(0)) >= 0) {
	398	switch (state) {
	399	case 0:
612a6965	400	if (ch == esc_char) {
89adce76 L	401	state = 1;
	402	/* TODO: Timer starten */
	403	} else {
	404	z80_memfifo_putc(fifo_conin, ch);
ea6971b8	405	}
89adce76	406	break;
8a7decea	407	case 2:
5e8ac5e0	408	my_puts_P(PSTR("\n"
8a7decea	409	"------------------------------------------------\n"));
89adce76	410	case 1:
8a7decea L	411	state = 0;
8a7decea L	412	switch (toupper(ch)) {
89adce76	413
8a7decea L	414	case '?':
8a7decea L	415	case 'H':
612a6965	416	print_con_usage(esc_char);
8a7decea	417	state = 2;
89adce76 L	418	break;
89adce76 L	419
8a7decea L	420	case 'R':
8a7decea L	421	reset_cpu(Restart);
89adce76 L	422	break;
89adce76 L	423
8a7decea	424	case 'X':
89adce76	425	case 'Q':
5e8ac5e0	426	putchar('\n');
89adce76 L	427	goto quit;
	428	break;
	429
b08e079d L	430	case ':':
b08e079d L	431	putchar('\n');
8ed66016	432	int cmdlen = cli_readline(PSTR(": "), 1);
b08e079d L	433	if (cmdlen > 0)
	434	run_command(console_buffer, 0);
	435	break;
	436
8a7decea L	437	case '\\':
	438	code = 0;
	439	state = 3;
	440	break;
	441
8a7decea	442	default:
612a6965 L	443	if (ch == esc_char)
612a6965 L	444	z80_memfifo_putc(fifo_conin, ch);
8a7decea L	445	break;
	446	}
	447	break;
	448	case 3:
	449	if (toupper(ch) == 'X') {
	450	state = 6;
	451	break;
	452	}
	453	/* fall thru */
	454	case 4:
	455	case 5:
	456	if (isdigit(ch)) {
	457	code = code * 10 + ch - '0';
	458	state++;
b08e079d L	459	} else {
	460	if (state > 3)
	461	z80_memfifo_putc(fifo_conin, code);
	462	z80_memfifo_putc(fifo_conin, ch);
	463	state = 0;
8a7decea L	464	}
	465	if (state > 5) {
	466	z80_memfifo_putc(fifo_conin, code);
	467	state = 0;
	468	}
	469	break;
	470	case 6:
	471	case 7:
	472	if (isxdigit(ch)) {
	473	ch = toupper(ch);
	474	if (ch >= 'A')
	475	ch -= 'A' - 10;
	476	code = code * 16 + ch - '0';
	477	state++;
b08e079d L	478	}else {
	479	if (state > 6)
	480	z80_memfifo_putc(fifo_conin, code);
	481	z80_memfifo_putc(fifo_conin, ch);
	482	state = 0;
8a7decea L	483	}
	484	if (state > 7) {
	485	z80_memfifo_putc(fifo_conin, code);
	486	state = 0;
89adce76	487	}
89adce76 L	488	break;
	489	}
	490	}
89adce76 L	491	}
89adce76 L	492	quit:
89adce76 L	493	return CMD_RET_SUCCESS;
89adce76 L	494	}