summaryrefslogtreecommitdiffstats
path: root/dummyflasher.c
blob: 9b8bb5393defe35b26b3e97d2889ffe52af33a54 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
/*
 * This file is part of the flashrom project.
 *
 * Copyright (C) 2009 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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
 */

#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "flash.h"
#include "chipdrivers.h"
#include "programmer.h"

static void tolower_string(char *str)
{
	for (; *str != '\0'; str++)
		*str = (char)tolower((unsigned char)*str);
}

int dummy_init(void)
{
	char *bustext = NULL;

	msg_pspew("%s\n", __func__);

	bustext = extract_programmer_param("bus");
	msg_pdbg("Requested buses are: %s\n", bustext ? bustext : "default");
	if (!bustext)
		bustext = strdup("parallel+lpc+fwh+spi");
	/* Convert the parameters to lowercase. */
	tolower_string(bustext);

	buses_supported = CHIP_BUSTYPE_NONE;
	if (strstr(bustext, "parallel")) {
		buses_supported |= CHIP_BUSTYPE_PARALLEL;
		msg_pdbg("Enabling support for %s flash.\n", "parallel");
	}
	if (strstr(bustext, "lpc")) {
		buses_supported |= CHIP_BUSTYPE_LPC;
		msg_pdbg("Enabling support for %s flash.\n", "LPC");
	}
	if (strstr(bustext, "fwh")) {
		buses_supported |= CHIP_BUSTYPE_FWH;
		msg_pdbg("Enabling support for %s flash.\n", "FWH");
	}
	if (strstr(bustext, "spi")) {
		buses_supported |= CHIP_BUSTYPE_SPI;
		spi_controller = SPI_CONTROLLER_DUMMY;
		msg_pdbg("Enabling support for %s flash.\n", "SPI");
	}
	if (buses_supported == CHIP_BUSTYPE_NONE)
		msg_pdbg("Support for all flash bus types disabled.\n");
	free(bustext);
	return 0;
}

int dummy_shutdown(void)
{
	msg_pspew("%s\n", __func__);
	return 0;
}

void *dummy_map(const char *descr, unsigned long phys_addr, size_t len)
{
	msg_pspew("%s: Mapping %s, 0x%lx bytes at 0x%08lx\n",
		  __func__, descr, (unsigned long)len, phys_addr);
	return (void *)phys_addr;
}

void dummy_unmap(void *virt_addr, size_t len)
{
	msg_pspew("%s: Unmapping 0x%lx bytes at %p\n",
		  __func__, (unsigned long)len, virt_addr);
}

void dummy_chip_writeb(uint8_t val, chipaddr addr)
{
	msg_pspew("%s: addr=0x%lx, val=0x%02x\n", __func__, addr, val);
}

void dummy_chip_writew(uint16_t val, chipaddr addr)
{
	msg_pspew("%s: addr=0x%lx, val=0x%04x\n", __func__, addr, val);
}

void dummy_chip_writel(uint32_t val, chipaddr addr)
{
	msg_pspew("%s: addr=0x%lx, val=0x%08x\n", __func__, addr, val);
}

void dummy_chip_writen(uint8_t *buf, chipaddr addr, size_t len)
{
	size_t i;
	msg_pspew("%s: addr=0x%lx, len=0x%08lx, writing data (hex):",
		  __func__, addr, (unsigned long)len);
	for (i = 0; i < len; i++) {
		if ((i % 16) == 0)
			msg_pspew("\n");
		msg_pspew("%02x ", buf[i]);
	}
}

uint8_t dummy_chip_readb(const chipaddr addr)
{
	msg_pspew("%s:  addr=0x%lx, returning 0xff\n", __func__, addr);
	return 0xff;
}

uint16_t dummy_chip_readw(const chipaddr addr)
{
	msg_pspew("%s:  addr=0x%lx, returning 0xffff\n", __func__, addr);
	return 0xffff;
}

uint32_t dummy_chip_readl(const chipaddr addr)
{
	msg_pspew("%s:  addr=0x%lx, returning 0xffffffff\n", __func__, addr);
	return 0xffffffff;
}

void dummy_chip_readn(uint8_t *buf, const chipaddr addr, size_t len)
{
	msg_pspew("%s:  addr=0x%lx, len=0x%lx, returning array of 0xff\n",
		  __func__, addr, (unsigned long)len);
	memset(buf, 0xff, len);
	return;
}

int dummy_spi_send_command(unsigned int writecnt, unsigned int readcnt,
		      const unsigned char *writearr, unsigned char *readarr)
{
	int i;

	msg_pspew("%s:", __func__);

	msg_pspew(" writing %u bytes:", writecnt);
	for (i = 0; i < writecnt; i++)
		msg_pspew(" 0x%02x", writearr[i]);

	msg_pspew(" reading %u bytes:", readcnt);
	for (i = 0; i < readcnt; i++) {
		msg_pspew(" 0xff");
		readarr[i] = 0xff;
	}

	msg_pspew("\n");
	return 0;
}

int dummy_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len)
{
	/* Maximum read length is unlimited, use 64kB. */
	return spi_read_chunked(flash, buf, start, len, 64 * 1024);
}

/* Is is impossible to trigger this code path because dummyflasher probing will
 * never be successful, and the current frontend refuses to write in that case.
 * Other frontends may allow writing even for non-detected chips, though.
 */
int dummy_spi_write_256(struct flashchip *flash, uint8_t *buf, int start, int len)
{
	return spi_write_chunked(flash, buf, start, len, 256);
}
OpenPOWER on IntegriCloud