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path: root/backends/simplec/test00_uut.v

	Commit message (Expand)	Author	Age	Files	Lines
*	Squelch a little more trailing whitespace	Larry Doolittle	2018-12-29	1	-3/+3
*	Improve simplec back-end	Clifford Wolf	2017-05-14	1	-2/+2
*	Add first draft of simple C back-end	Clifford Wolf	2017-05-12	1	-0/+14

generated by cgit v1.2.3 (git 2.25.1) at 2025-09-19 14:17:54 +0000

/*
 * This file is part of the flashrom project.
 *
 * Copyright (C) 2009 Paul Fox <pgf@laptop.org>
 * Copyright (C) 2009, 2010 Carl-Daniel Hailfinger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#if CONFIG_FT2232_SPI == 1

#include <stdio.h>
#include <strings.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "flash.h"
#include "programmer.h"
#include "spi.h"
#include <ftdi.h>

/* This is not defined in libftdi.h <0.20 (c7e4c09e68cfa6f5e112334aa1b3bb23401c8dc7 to be exact).
 * Some tests indicate that his is the only change that it is needed to support the FT232H in flashrom. */
#if !defined(HAVE_FT232H)
#define TYPE_232H	6
#endif

/* Please keep sorted by vendor ID, then device ID. */

#define FTDI_VID		0x0403
#define FTDI_FT2232H_PID	0x6010
#define FTDI_FT4232H_PID	0x6011
#define FTDI_FT232H_PID		0x6014
#define TIAO_TUMPA_PID		0x8a98
#define TIAO_TUMPA_LITE_PID	0x8a99
#define AMONTEC_JTAGKEY_PID	0xCFF8

#define GOEPEL_VID		0x096C
#define GOEPEL_PICOTAP_PID	0x1449

#define FIC_VID			0x1457
#define OPENMOKO_DBGBOARD_PID	0x5118

#define OLIMEX_VID		0x15BA
#define OLIMEX_ARM_OCD_PID	0x0003
#define OLIMEX_ARM_TINY_PID	0x0004
#define OLIMEX_ARM_OCD_H_PID	0x002B
#define OLIMEX_ARM_TINY_H_PID	0x002A

#define GOOGLE_VID		0x18D1
#define GOOGLE_SERVO_PID	0x5001
#define GOOGLE_SERVO_V2_PID0	0x5002
#define GOOGLE_SERVO_V2_PID1	0x5003

const struct dev_entry devs_ft2232spi[] = {
	{FTDI_VID, FTDI_FT2232H_PID, OK, "FTDI", "FT2232H"},
	{FTDI_VID, FTDI_FT4232H_PID, OK, "FTDI", "FT4232H"},
	{FTDI_VID, FTDI_FT232H_PID, OK, "FTDI", "FT232H"},
	{FTDI_VID, TIAO_TUMPA_PID, OK, "TIAO", "USB Multi-Protocol Adapter"},
	{FTDI_VID, TIAO_TUMPA_LITE_PID, OK, "TIAO", "USB Multi-Protocol Adapter Lite"},
	{FTDI_VID, AMONTEC_JTAGKEY_PID, OK, "Amontec", "JTAGkey"},
	{GOEPEL_VID, GOEPEL_PICOTAP_PID, OK, "GOEPEL", "PicoTAP"},
	{GOOGLE_VID, GOOGLE_SERVO_PID, OK, "Google", "Servo"},
	{GOOGLE_VID, GOOGLE_SERVO_V2_PID0, OK, "Google", "Servo V2 Legacy"},
	{GOOGLE_VID, GOOGLE_SERVO_V2_PID1, OK, "Google", "Servo V2"},
	{FIC_VID, OPENMOKO_DBGBOARD_PID, OK, "FIC", "OpenMoko Neo1973 Debug board (V2+)"},
	{OLIMEX_VID, OLIMEX_ARM_OCD_PID, OK, "Olimex", "ARM-USB-OCD"},
	{OLIMEX_VID, OLIMEX_ARM_TINY_PID, OK, "Olimex", "ARM-USB-TINY"},
	{OLIMEX_VID, OLIMEX_ARM_OCD_H_PID, OK, "Olimex", "ARM-USB-OCD-H"},
	{OLIMEX_VID, OLIMEX_ARM_TINY_H_PID, OK, "Olimex", "ARM-USB-TINY-H"},

	{0},
};

#define DEFAULT_DIVISOR 2

#define BITMODE_BITBANG_NORMAL	1
#define BITMODE_BITBANG_SPI	2

/* The variables cs_bits and pindir store the values for the "set data bits low byte" MPSSE command that
 * sets the initial state and the direction of the I/O pins. The pin offsets are as follows:
 * SCK is bit 0.
 * DO  is bit 1.
 * DI  is bit 2.
 * CS  is bit 3.
 *
 * The default values (set below) are used for most devices:
 *  value: 0x08  CS=high, DI=low, DO=low, SK=low
 *    dir: 0x0b  CS=output, DI=input, DO=output, SK=output
 */
static uint8_t cs_bits = 0x08;
static uint8_t pindir = 0x0b;
static struct ftdi_context ftdic_context;

static const char *get_ft2232_devicename(int ft2232_vid, int ft2232_type)
{
	int i;
	for (i = 0; devs_ft2232spi[i].vendor_name != NULL; i++) {
		if ((devs_ft2232spi[i].device_id == ft2232_type) && (devs_ft2232spi[i].vendor_id == ft2232_vid))
				return devs_ft2232spi[i].device_name;
	}
	return "unknown device";
}

static const char *get_ft2232_vendorname(int ft2232_vid, int ft2232_type)
{
	int i;
	for (i = 0; devs_ft2232spi[i].vendor_name != NULL; i++) {
		if ((devs_ft2232spi[i].device_id == ft2232_type) && (devs_ft2232spi[i].vendor_id == ft2232_vid))
				return devs_ft2232spi[i].vendor_name;
	}
	return "unknown vendor";
}

static int send_buf(struct ftdi_context *ftdic, const unsigned char *buf,
		    int size)
{
	int r;
	r = ftdi_write_data(ftdic, (unsigned char *) buf, size);
	if (r < 0) {
		msg_perr("ftdi_write_data: %d, %s\n", r, ftdi_get_error_string(ftdic));
		return 1;
	}
	return 0;
}

static int get_buf(struct ftdi_context *ftdic, const unsigned char *buf,
		   int size)
{
	int r;

	while (size > 0) {
		r = ftdi_read_data(ftdic, (unsigned char *) buf, size);
		if (r < 0) {
			msg_perr("ftdi_read_data: %d, %s\n", r, ftdi_get_error_string(ftdic));
			return 1;
		}
		buf += r;
		size -= r;
	}
	return 0;
}

static int ft2232_spi_send_command(struct flashctx *flash,
				   unsigned int writecnt, unsigned int readcnt,
				   const unsigned char *writearr,
				   unsigned char *readarr);

static const struct spi_master spi_master_ft2232 = {
	.type		= SPI_CONTROLLER_FT2232,
	.max_data_read	= 64 * 1024,
	.max_data_write	= 256,
	.command	= ft2232_spi_send_command,
	.multicommand	= default_spi_send_multicommand,
	.read		= default_spi_read,
	.write_256	= default_spi_write_256,
	.write_aai	= default_spi_write_aai,
};

/* Returns 0 upon success, a negative number upon errors. */
int ft2232_spi_init(void)
{
	int ret = 0;
	struct ftdi_context *ftdic = &ftdic_context;
	unsigned char buf[512];
	int ft2232_vid = FTDI_VID;
	int ft2232_type = FTDI_FT4232H_PID;
	int channel_count = 4; /* Stores the number of channels of the device. */
	enum ftdi_interface ft2232_interface = INTERFACE_A;
	/*
	 * The 'H' chips can run with an internal clock of either 12 MHz or 60 MHz,
	 * but the non-H chips can only run at 12 MHz. We enable the divide-by-5
	 * prescaler on the former to run on the same speed.
	 */
	uint8_t clock_5x = 1;
	/* In addition to the prescaler mentioned above there is also another
	 * configurable one on all versions of the chips. Its divisor div can be
	 * set by a 16 bit value x according to the following formula:
	 * div = (1 + x) * 2 <-> x = div / 2 - 1
	 * Hence the expressible divisors are all even numbers between 2 and
	 * 2^17 (=131072) resulting in SCK frequencies of 6 MHz down to about
	 * 92 Hz for 12 MHz inputs.
	 */
	uint32_t divisor = DEFAULT_DIVISOR;
	int f;
	char *arg;
	double mpsse_clk;

	arg = extract_programmer_param("type");
	if (arg) {
		if (!strcasecmp(arg, "2232H")) {
			ft2232_type = FTDI_FT2232H_PID;
			channel_count = 2;
		} else if (!strcasecmp(arg, "4232H")) {
			ft2232_type = FTDI_FT4232H_PID;
			channel_count = 4;
		} else if (!strcasecmp(arg, "232H")) {
			ft2232_type = FTDI_FT232H_PID;
			channel_count = 1;
		} else if (!strcasecmp(arg, "jtagkey")) {
			ft2232_type = AMONTEC_JTAGKEY_PID;
			channel_count = 2;
			/* JTAGkey(2) needs to enable its output via Bit4 / GPIOL0
			*  value: 0x18  OE=high, CS=high, DI=low, DO=low, SK=low
			*    dir: 0x1b  OE=output, CS=output, DI=input, DO=output, SK=output */
			cs_bits = 0x18;
			pindir = 0x1b;
		} else if (!strcasecmp(arg, "picotap")) {
			ft2232_vid = GOEPEL_VID;
			ft2232_type = GOEPEL_PICOTAP_PID;
			channel_count = 2;
		} else if (!strcasecmp(arg, "tumpa")) {
			/* Interface A is SPI1, B is SPI2. */
			ft2232_type = TIAO_TUMPA_PID;
			channel_count = 2;
		} else if (!strcasecmp(arg, "tumpalite")) {