blob: 7acba36eb118421ce9a9e74826a0bd8f07c4aa13 [file] [log] [blame]
Urja Rannikko22915352009-06-23 11:33:43 +00001/*
2 * This file is part of the flashrom project.
3 *
Urja Rannikkoc93f5f12011-09-15 23:38:14 +00004 * Copyright (C) 2009, 2011 Urja Rannikko <urjaman@gmail.com>
Urja Rannikko22915352009-06-23 11:33:43 +00005 * Copyright (C) 2009 Carl-Daniel Hailfinger
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
Urja Rannikko22915352009-06-23 11:33:43 +000016 */
17
Stefan Taunerb0eee9b2015-01-10 09:32:50 +000018#include "platform.h"
19
Felix Singer815eb792022-08-19 01:02:42 +020020#include <stdbool.h>
Carl-Daniel Hailfingeref58a9c2009-08-12 13:32:56 +000021#include <stdio.h>
Stefan Taunerb0eee9b2015-01-10 09:32:50 +000022#if ! IS_WINDOWS /* stuff (presumably) needed for sockets only */
Urja Rannikko22915352009-06-23 11:33:43 +000023#include <stdlib.h>
Carl-Daniel Hailfingeref58a9c2009-08-12 13:32:56 +000024#include <unistd.h>
Urja Rannikko22915352009-06-23 11:33:43 +000025#include <fcntl.h>
Urja Rannikko22915352009-06-23 11:33:43 +000026#include <sys/socket.h>
27#include <arpa/inet.h>
28#include <netinet/in.h>
29#include <netinet/tcp.h>
30#include <netdb.h>
Stefan Tauner52b6e9d2013-04-01 00:46:05 +000031#endif
Stefan Taunerb0eee9b2015-01-10 09:32:50 +000032#if IS_WINDOWS
Stefan Tauner52b6e9d2013-04-01 00:46:05 +000033#include <conio.h>
34#else
Urja Rannikko22915352009-06-23 11:33:43 +000035#include <termios.h>
Stefan Tauner52b6e9d2013-04-01 00:46:05 +000036#endif
37#include <string.h>
38#include <errno.h>
Carl-Daniel Hailfinger5b997c32010-07-27 22:41:39 +000039#include "flash.h"
40#include "programmer.h"
Urja Rannikkoc93f5f12011-09-15 23:38:14 +000041#include "chipdrivers.h"
Felix Singer100be2c2021-10-13 13:40:07 +020042
43/* According to Serial Flasher Protocol Specification - version 1 */
44#define S_ACK 0x06
45#define S_NAK 0x15
46#define S_CMD_NOP 0x00 /* No operation */
47#define S_CMD_Q_IFACE 0x01 /* Query interface version */
48#define S_CMD_Q_CMDMAP 0x02 /* Query supported commands bitmap */
49#define S_CMD_Q_PGMNAME 0x03 /* Query programmer name */
50#define S_CMD_Q_SERBUF 0x04 /* Query Serial Buffer Size */
51#define S_CMD_Q_BUSTYPE 0x05 /* Query supported bustypes */
52#define S_CMD_Q_CHIPSIZE 0x06 /* Query supported chipsize (2^n format) */
53#define S_CMD_Q_OPBUF 0x07 /* Query operation buffer size */
54#define S_CMD_Q_WRNMAXLEN 0x08 /* Query Write to opbuf: Write-N maximum length */
55#define S_CMD_R_BYTE 0x09 /* Read a single byte */
56#define S_CMD_R_NBYTES 0x0A /* Read n bytes */
57#define S_CMD_O_INIT 0x0B /* Initialize operation buffer */
58#define S_CMD_O_WRITEB 0x0C /* Write opbuf: Write byte with address */
59#define S_CMD_O_WRITEN 0x0D /* Write to opbuf: Write-N */
60#define S_CMD_O_DELAY 0x0E /* Write opbuf: udelay */
61#define S_CMD_O_EXEC 0x0F /* Execute operation buffer */
62#define S_CMD_SYNCNOP 0x10 /* Special no-operation that returns NAK+ACK */
63#define S_CMD_Q_RDNMAXLEN 0x11 /* Query read-n maximum length */
64#define S_CMD_S_BUSTYPE 0x12 /* Set used bustype(s). */
65#define S_CMD_O_SPIOP 0x13 /* Perform SPI operation. */
66#define S_CMD_S_SPI_FREQ 0x14 /* Set SPI clock frequency */
67#define S_CMD_S_PIN_STATE 0x15 /* Enable/disable output drivers */
Urja Rannikkof3196df2009-07-21 13:02:59 +000068
Stefan Tauner31019d42011-10-22 21:45:27 +000069#define MSGHEADER "serprog: "
Urja Rannikkof3196df2009-07-21 13:02:59 +000070
David Hendricks8bb20212011-06-14 01:35:36 +000071/*
72 * FIXME: This prototype was added to help reduce diffs for the shutdown
73 * registration patch, which shifted many lines of code to place
74 * serprog_shutdown() before serprog_init(). It should be removed soon.
75 */
76static int serprog_shutdown(void *data);
77
Urja Rannikkof3196df2009-07-21 13:02:59 +000078static uint16_t sp_device_serbuf_size = 16;
79static uint16_t sp_device_opbuf_size = 300;
80/* Bitmap of supported commands */
81static uint8_t sp_cmdmap[32];
82
Uwe Hermann4e3d0b32010-03-25 23:18:41 +000083/* sp_prev_was_write used to detect writes with contiguous addresses
Urja Rannikkof3196df2009-07-21 13:02:59 +000084 and combine them to write-n's */
85static int sp_prev_was_write = 0;
86/* sp_write_n_addr used as the starting addr of the currently
87 combined write-n operation */
88static uint32_t sp_write_n_addr;
89/* The maximum length of an write_n operation; 0 = write-n not supported */
90static uint32_t sp_max_write_n = 0;
91/* The maximum length of a read_n operation; 0 = 2^24 */
92static uint32_t sp_max_read_n = 0;
93
94/* A malloc'd buffer for combining the operation's data
95 and a counter that tells how much data is there. */
96static uint8_t *sp_write_n_buf;
97static uint32_t sp_write_n_bytes = 0;
98
99/* sp_streamed_* used for flow control checking */
Nico Huber519be662018-12-23 20:03:35 +0100100static unsigned int sp_streamed_transmit_ops = 0;
101static unsigned int sp_streamed_transmit_bytes = 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000102
103/* sp_opbuf_usage used for counting the amount of
104 on-device operation buffer used */
105static int sp_opbuf_usage = 0;
106/* if true causes sp_docommand to automatically check
107 whether the command is supported before doing it */
108static int sp_check_avail_automatic = 0;
109
Stefan Taunerb0eee9b2015-01-10 09:32:50 +0000110#if ! IS_WINDOWS
Urja Rannikkof3196df2009-07-21 13:02:59 +0000111static int sp_opensocket(char *ip, unsigned int port)
112{
113 int flag = 1;
114 struct hostent *hostPtr = NULL;
Carl-Daniel Hailfinger6d125602009-09-05 01:10:23 +0000115 union { struct sockaddr_in si; struct sockaddr s; } sp = {};
Urja Rannikkof3196df2009-07-21 13:02:59 +0000116 int sock;
Sean Nelson74e8af52010-01-10 01:06:23 +0000117 msg_pdbg(MSGHEADER "IP %s port %d\n", ip, port);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000118 sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000119 if (sock < 0) {
120 msg_perr("Error: serprog cannot open socket: %s\n", strerror(errno));
121 return -1;
122 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000123 hostPtr = gethostbyname(ip);
124 if (NULL == hostPtr) {
125 hostPtr = gethostbyaddr(ip, strlen(ip), AF_INET);
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000126 if (NULL == hostPtr) {
Stefan Reinauerb8792872014-04-26 16:12:03 +0000127 close(sock);
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000128 msg_perr("Error: cannot resolve %s\n", ip);
129 return -1;
130 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000131 }
Carl-Daniel Hailfinger6d125602009-09-05 01:10:23 +0000132 sp.si.sin_family = AF_INET;
133 sp.si.sin_port = htons(port);
Carl-Daniel Hailfinger1c6d2ff2012-08-27 00:44:42 +0000134 (void)memcpy(&sp.si.sin_addr, hostPtr->h_addr_list[0], hostPtr->h_length);
Carl-Daniel Hailfinger6d125602009-09-05 01:10:23 +0000135 if (connect(sock, &sp.s, sizeof(sp.si)) < 0) {
Urja Rannikkof3196df2009-07-21 13:02:59 +0000136 close(sock);
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000137 msg_perr("Error: serprog cannot connect: %s\n", strerror(errno));
138 return -1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000139 }
140 /* We are latency limited, and sometimes do write-write-read *
141 * (write-n) - so enable TCP_NODELAY. */
Stefan Reinauer907c3eb2014-04-26 16:12:31 +0000142 if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(int))) {
143 close(sock);
144 msg_perr("Error: serprog cannot set socket options: %s\n", strerror(errno));
145 return -1;
146 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000147 return sock;
148}
Stefan Tauner52b6e9d2013-04-01 00:46:05 +0000149#endif
Urja Rannikkof3196df2009-07-21 13:02:59 +0000150
Uwe Hermann4e3d0b32010-03-25 23:18:41 +0000151/* Synchronize: a bit tricky algorithm that tries to (and in my tests has *
Urja Rannikkof3196df2009-07-21 13:02:59 +0000152 * always succeeded in) bring the serial protocol to known waiting-for- *
Stefan Taunerae3d8372013-04-01 00:45:45 +0000153 * command state - uses nonblocking I/O - rest of the driver uses *
Urja Rannikkof3196df2009-07-21 13:02:59 +0000154 * blocking read - TODO: add an alarm() timer for the rest of the app on *
155 * serial operations, though not such a big issue as the first thing to *
156 * do is synchronize (eg. check that device is alive). */
Niklas Söderlund7145a502012-09-07 07:07:07 +0000157static int sp_synchronize(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000158{
159 int i;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000160 unsigned char buf[8];
Urja Rannikkof3196df2009-07-21 13:02:59 +0000161 /* First sends 8 NOPs, then flushes the return data - should cause *
162 * the device serial parser to get to a sane state, unless if it *
163 * is waiting for a real long write-n. */
164 memset(buf, S_CMD_NOP, 8);
Stefan Taunerae3d8372013-04-01 00:45:45 +0000165 if (serialport_write_nonblock(buf, 8, 1, NULL) != 0) {
Niklas Söderlund7145a502012-09-07 07:07:07 +0000166 goto err_out;
167 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000168 /* A second should be enough to get all the answers to the buffer */
Stefan Tauner79587f52013-04-01 00:45:51 +0000169 internal_delay(1000 * 1000);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000170 sp_flush_incoming();
171
Cristian Măgherușan-Stanciu9932c7b2011-07-07 19:56:58 +0000172 /* Then try up to 8 times to send syncnop and get the correct special *
173 * return of NAK+ACK. Timing note: up to 10 characters, 10*50ms = *
174 * up to 500ms per try, 8*0.5s = 4s; +1s (above) = up to 5s sync *
175 * attempt, ~1s if immediate success. */
Urja Rannikkof3196df2009-07-21 13:02:59 +0000176 for (i = 0; i < 8; i++) {
177 int n;
178 unsigned char c = S_CMD_SYNCNOP;
Stefan Taunerae3d8372013-04-01 00:45:45 +0000179 if (serialport_write_nonblock(&c, 1, 1, NULL) != 0) {
Niklas Söderlund7145a502012-09-07 07:07:07 +0000180 goto err_out;
181 }
Sean Nelson74e8af52010-01-10 01:06:23 +0000182 msg_pdbg(".");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000183 fflush(stdout);
184 for (n = 0; n < 10; n++) {
Stefan Tauner00e16082013-04-01 00:45:38 +0000185 int ret = serialport_read_nonblock(&c, 1, 50, NULL);
Niklas Söderlund7145a502012-09-07 07:07:07 +0000186 if (ret < 0)
187 goto err_out;
188 if (ret > 0 || c != S_NAK)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000189 continue;
Stefan Tauner00e16082013-04-01 00:45:38 +0000190 ret = serialport_read_nonblock(&c, 1, 20, NULL);
Niklas Söderlund7145a502012-09-07 07:07:07 +0000191 if (ret < 0)
192 goto err_out;
193 if (ret > 0 || c != S_ACK)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000194 continue;
195 c = S_CMD_SYNCNOP;
Stefan Taunerae3d8372013-04-01 00:45:45 +0000196 if (serialport_write_nonblock(&c, 1, 1, NULL) != 0) {
197 goto err_out;
Niklas Söderlund7145a502012-09-07 07:07:07 +0000198 }
Stefan Tauner00e16082013-04-01 00:45:38 +0000199 ret = serialport_read_nonblock(&c, 1, 500, NULL);
Niklas Söderlund7145a502012-09-07 07:07:07 +0000200 if (ret < 0)
201 goto err_out;
202 if (ret > 0 || c != S_NAK)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000203 break; /* fail */
Stefan Tauner00e16082013-04-01 00:45:38 +0000204 ret = serialport_read_nonblock(&c, 1, 100, NULL);
Niklas Söderlund7145a502012-09-07 07:07:07 +0000205 if (ret > 0 || ret < 0)
206 goto err_out;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000207 if (c != S_ACK)
208 break; /* fail */
Sean Nelson74e8af52010-01-10 01:06:23 +0000209 msg_pdbg("\n");
Niklas Söderlund7145a502012-09-07 07:07:07 +0000210 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000211 }
212 }
Niklas Söderlund7145a502012-09-07 07:07:07 +0000213err_out:
214 msg_perr("Error: cannot synchronize protocol - check communications and reset device?\n");
215 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000216}
217
218static int sp_check_commandavail(uint8_t command)
219{
220 int byteoffs, bitoffs;
221 byteoffs = command / 8;
222 bitoffs = command % 8;
223 return (sp_cmdmap[byteoffs] & (1 << bitoffs)) ? 1 : 0;
224}
225
226static int sp_automatic_cmdcheck(uint8_t cmd)
227{
228 if ((sp_check_avail_automatic) && (sp_check_commandavail(cmd) == 0)) {
Stefan Tauner31019d42011-10-22 21:45:27 +0000229 msg_pdbg("Warning: Automatic command availability check failed "
Stefan Taunere34e3e82013-01-01 00:06:51 +0000230 "for cmd 0x%02x - won't execute cmd\n", cmd);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000231 return 1;
232 }
233 return 0;
234}
235
236static int sp_docommand(uint8_t command, uint32_t parmlen,
Stefan Tauner31019d42011-10-22 21:45:27 +0000237 uint8_t *params, uint32_t retlen, void *retparms)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000238{
Urja Rannikkof3196df2009-07-21 13:02:59 +0000239 unsigned char c;
240 if (sp_automatic_cmdcheck(command))
241 return 1;
Stefan Tauner79587f52013-04-01 00:45:51 +0000242 if (serialport_write(&command, 1) != 0) {
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000243 msg_perr("Error: cannot write op code: %s\n", strerror(errno));
244 return 1;
245 }
Stefan Tauner79587f52013-04-01 00:45:51 +0000246 if (serialport_write(params, parmlen) != 0) {
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000247 msg_perr("Error: cannot write parameters: %s\n", strerror(errno));
248 return 1;
249 }
Stefan Tauner79587f52013-04-01 00:45:51 +0000250 if (serialport_read(&c, 1) != 0) {
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000251 msg_perr("Error: cannot read from device: %s\n", strerror(errno));
252 return 1;
253 }
Stefan Tauner31019d42011-10-22 21:45:27 +0000254 if (c == S_NAK)
255 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000256 if (c != S_ACK) {
Stefan Tauner23e10b82016-01-23 16:16:49 +0000257 msg_perr("Error: invalid response 0x%02X from device (to command 0x%02X)\n", c, command);
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000258 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000259 }
260 if (retlen) {
Stefan Tauner79587f52013-04-01 00:45:51 +0000261 if (serialport_read(retparms, retlen) != 0) {
262 msg_perr("Error: cannot read return parameters: %s\n", strerror(errno));
263 return 1;
264 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000265 }
266 return 0;
267}
268
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000269static int sp_flush_stream(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000270{
271 if (sp_streamed_transmit_ops)
272 do {
273 unsigned char c;
Stefan Tauner79587f52013-04-01 00:45:51 +0000274 if (serialport_read(&c, 1) != 0) {
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000275 msg_perr("Error: cannot read from device (flushing stream)");
276 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000277 }
278 if (c == S_NAK) {
Sean Nelson74e8af52010-01-10 01:06:23 +0000279 msg_perr("Error: NAK to a stream buffer operation\n");
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000280 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000281 }
282 if (c != S_ACK) {
Sean Nelson74e8af52010-01-10 01:06:23 +0000283 msg_perr("Error: Invalid reply 0x%02X from device\n", c);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000284 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000285 }
286 } while (--sp_streamed_transmit_ops);
287 sp_streamed_transmit_ops = 0;
288 sp_streamed_transmit_bytes = 0;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000289 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000290}
291
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000292static int sp_stream_buffer_op(uint8_t cmd, uint32_t parmlen, uint8_t *parms)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000293{
294 uint8_t *sp;
295 if (sp_automatic_cmdcheck(cmd))
296 return 1;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000297
Urja Rannikkof3196df2009-07-21 13:02:59 +0000298 sp = malloc(1 + parmlen);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000299 if (!sp) {
300 msg_perr("Error: cannot malloc command buffer\n");
301 return 1;
302 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000303 sp[0] = cmd;
aarya885917c2022-03-10 09:16:44 +0530304 if (parms)
305 memcpy(&(sp[1]), parms, parmlen);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000306
307 if (sp_streamed_transmit_bytes >= (1 + parmlen + sp_device_serbuf_size)) {
308 if (sp_flush_stream() != 0) {
309 free(sp);
310 return 1;
311 }
312 }
313 if (serialport_write(sp, 1 + parmlen) != 0) {
314 msg_perr("Error: cannot write command\n");
315 free(sp);
316 return 1;
317 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000318 sp_streamed_transmit_ops += 1;
319 sp_streamed_transmit_bytes += 1 + parmlen;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000320
321 free(sp);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000322 return 0;
323}
324
Edward O'Callaghan5eca4272020-04-12 17:27:53 +1000325static int serprog_spi_send_command(const struct flashctx *flash,
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000326 unsigned int writecnt, unsigned int readcnt,
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000327 const unsigned char *writearr,
328 unsigned char *readarr);
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000329static struct spi_master spi_master_serprog = {
Nico Huber1cf407b2017-11-10 20:18:23 +0100330 .features = SPI_MASTER_4BA,
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000331 .max_data_read = MAX_DATA_READ_UNLIMITED,
332 .max_data_write = MAX_DATA_WRITE_UNLIMITED,
333 .command = serprog_spi_send_command,
334 .multicommand = default_spi_send_multicommand,
Urja Rannikko731316a2017-06-15 13:32:01 +0300335 .read = default_spi_read,
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000336 .write_256 = default_spi_write_256,
Nico Huber7bca1262012-06-15 22:28:12 +0000337 .write_aai = default_spi_write_aai,
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000338};
339
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000340static void serprog_chip_writeb(const struct flashctx *flash, uint8_t val,
341 chipaddr addr);
342static uint8_t serprog_chip_readb(const struct flashctx *flash,
343 const chipaddr addr);
344static void serprog_chip_readn(const struct flashctx *flash, uint8_t *buf,
345 const chipaddr addr, size_t len);
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000346static const struct par_master par_master_serprog = {
Thomas Heijligen43040f22022-06-23 14:38:35 +0200347 .chip_readb = serprog_chip_readb,
348 .chip_readw = fallback_chip_readw,
349 .chip_readl = fallback_chip_readl,
350 .chip_readn = serprog_chip_readn,
351 .chip_writeb = serprog_chip_writeb,
352 .chip_writew = fallback_chip_writew,
353 .chip_writel = fallback_chip_writel,
354 .chip_writen = fallback_chip_writen,
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000355};
356
357static enum chipbustype serprog_buses_supported = BUS_NONE;
358
Thomas Heijligencc853d82021-05-04 15:32:17 +0200359static int serprog_init(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000360{
361 uint16_t iface;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000362 unsigned char pgmname[17];
363 unsigned char rbuf[3];
364 unsigned char c;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000365 char *device;
Felix Singer815eb792022-08-19 01:02:42 +0200366 bool have_device = false;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000367
Stefan Tauner72587f82016-01-04 03:05:15 +0000368 /* the parameter is either of format "dev=/dev/device[:baud]" or "ip=ip:port" */
Carl-Daniel Hailfinger2b6dcb32010-07-08 10:13:37 +0000369 device = extract_programmer_param("dev");
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000370 if (device && strlen(device)) {
Stefan Tauner72587f82016-01-04 03:05:15 +0000371 char *baud_str = strstr(device, ":");
372 if (baud_str != NULL) {
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000373 /* Split device from baudrate. */
Stefan Tauner72587f82016-01-04 03:05:15 +0000374 *baud_str = '\0';
375 baud_str++;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000376 }
Stefan Tauner72587f82016-01-04 03:05:15 +0000377 int baud;
378 /* Convert baud string to value.
379 * baud_str is either NULL (if strstr can't find the colon), points to the \0 after the colon
380 * if no characters where given after the colon, or a string to convert... */
381 if (baud_str == NULL || *baud_str == '\0') {
382 baud = -1;
383 msg_pdbg("No baudrate specified, using the hardware's defaults.\n");
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000384 } else {
Stefan Tauner72587f82016-01-04 03:05:15 +0000385 baud = atoi(baud_str); // FIXME: replace atoi with strtoul
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000386 }
Stefan Tauner72587f82016-01-04 03:05:15 +0000387 if (strlen(device) > 0) {
388 sp_fd = sp_openserport(device, baud);
Stefan Tauneracfc4c62012-11-30 16:46:45 +0000389 if (sp_fd == SER_INV_FD) {
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000390 free(device);
391 return 1;
392 }
Felix Singer815eb792022-08-19 01:02:42 +0200393 have_device = true;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000394 }
395 }
Urja Rannikko27b431b2016-01-04 03:05:23 +0000396
397#if !IS_WINDOWS
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000398 if (device && !strlen(device)) {
399 msg_perr("Error: No device specified.\n"
Stefan Tauner72587f82016-01-04 03:05:15 +0000400 "Use flashrom -p serprog:dev=/dev/device[:baud]\n");
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000401 free(device);
402 return 1;
403 }
404 free(device);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000405
Carl-Daniel Hailfinger2b6dcb32010-07-08 10:13:37 +0000406 device = extract_programmer_param("ip");
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000407 if (have_device && device) {
408 msg_perr("Error: Both host and device specified.\n"
409 "Please use either dev= or ip= but not both.\n");
410 free(device);
411 return 1;
412 }
413 if (device && strlen(device)) {
Stefan Tauner72587f82016-01-04 03:05:15 +0000414 char *port = strstr(device, ":");
415 if (port != NULL) {
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000416 /* Split host from port. */
Stefan Tauner72587f82016-01-04 03:05:15 +0000417 *port = '\0';
418 port++;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000419 }
Stefan Tauner72587f82016-01-04 03:05:15 +0000420 if (!port || !strlen(port)) {
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000421 msg_perr("Error: No port specified.\n"
422 "Use flashrom -p serprog:ip=ipaddr:port\n");
423 free(device);
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000424 return 1;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000425 }
426 if (strlen(device)) {
Stefan Tauner72587f82016-01-04 03:05:15 +0000427 sp_fd = sp_opensocket(device, atoi(port)); // FIXME: replace atoi with strtoul
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000428 if (sp_fd < 0) {
429 free(device);
430 return 1;
431 }
Felix Singer815eb792022-08-19 01:02:42 +0200432 have_device = true;
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000433 }
434 }
435 if (device && !strlen(device)) {
436 msg_perr("Error: No host specified.\n"
437 "Use flashrom -p serprog:ip=ipaddr:port\n");
438 free(device);
439 return 1;
440 }
Urja Rannikko27b431b2016-01-04 03:05:23 +0000441#endif
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000442 free(device);
443
444 if (!have_device) {
Urja Rannikko27b431b2016-01-04 03:05:23 +0000445#if IS_WINDOWS
446 msg_perr("Error: No device specified.\n"
447 "Use flashrom -p serprog:dev=comN[:baud]\n");
448#else
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000449 msg_perr("Error: Neither host nor device specified.\n"
450 "Use flashrom -p serprog:dev=/dev/device:baud or "
451 "flashrom -p serprog:ip=ipaddr:port\n");
Urja Rannikko27b431b2016-01-04 03:05:23 +0000452#endif
Carl-Daniel Hailfinger744132a2010-07-06 09:55:48 +0000453 return 1;
454 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000455
David Hendricks8bb20212011-06-14 01:35:36 +0000456 if (register_shutdown(serprog_shutdown, NULL))
457 return 1;
458
Sean Nelson74e8af52010-01-10 01:06:23 +0000459 msg_pdbg(MSGHEADER "connected - attempting to synchronize\n");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000460
461 sp_check_avail_automatic = 0;
462
Niklas Söderlund7145a502012-09-07 07:07:07 +0000463 if (sp_synchronize())
464 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000465
Sean Nelson74e8af52010-01-10 01:06:23 +0000466 msg_pdbg(MSGHEADER "Synchronized\n");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000467
468 if (sp_docommand(S_CMD_Q_IFACE, 0, NULL, 2, &iface)) {
Stefan Tauner31019d42011-10-22 21:45:27 +0000469 msg_perr("Error: NAK to query interface version\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000470 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000471 }
472
473 if (iface != 1) {
Stefan Tauner31019d42011-10-22 21:45:27 +0000474 msg_perr("Error: Unknown interface version: %d\n", iface);
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000475 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000476 }
477
Sean Nelson74e8af52010-01-10 01:06:23 +0000478 msg_pdbg(MSGHEADER "Interface version ok.\n");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000479
480 if (sp_docommand(S_CMD_Q_CMDMAP, 0, NULL, 32, sp_cmdmap)) {
Sean Nelson74e8af52010-01-10 01:06:23 +0000481 msg_perr("Error: query command map not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000482 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000483 }
484
485 sp_check_avail_automatic = 1;
486
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000487 /* FIXME: This assumes that serprog device bustypes are always
488 * identical with flashrom bustype enums and that they all fit
489 * in a single byte.
490 */
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000491 if (sp_docommand(S_CMD_Q_BUSTYPE, 0, NULL, 1, &c)) {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000492 msg_pwarn("Warning: NAK to query supported buses\n");
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000493 c = BUS_NONSPI; /* A reasonable default for now. */
Urja Rannikkof3196df2009-07-21 13:02:59 +0000494 }
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000495 serprog_buses_supported = c;
496
Stefan Tauner31019d42011-10-22 21:45:27 +0000497 msg_pdbg(MSGHEADER "Bus support: parallel=%s, LPC=%s, FWH=%s, SPI=%s\n",
498 (c & BUS_PARALLEL) ? "on" : "off",
499 (c & BUS_LPC) ? "on" : "off",
500 (c & BUS_FWH) ? "on" : "off",
501 (c & BUS_SPI) ? "on" : "off");
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000502 /* Check for the minimum operational set of commands. */
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000503 if (serprog_buses_supported & BUS_SPI) {
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000504 uint8_t bt = BUS_SPI;
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000505 char *spispeed;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000506 if (sp_check_commandavail(S_CMD_O_SPIOP) == 0) {
507 msg_perr("Error: SPI operation not supported while the "
508 "bustype is SPI\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000509 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000510 }
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000511 if (sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL))
512 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000513 /* Success of any of these commands is optional. We don't need
514 the programmer to tell us its limits, but if it doesn't, we
515 will assume stuff, so it's in the programmers best interest
516 to tell us. */
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000517 if (!sp_docommand(S_CMD_Q_WRNMAXLEN, 0, NULL, 3, rbuf)) {
518 uint32_t v;
519 v = ((unsigned int)(rbuf[0]) << 0);
520 v |= ((unsigned int)(rbuf[1]) << 8);
521 v |= ((unsigned int)(rbuf[2]) << 16);
522 if (v == 0)
523 v = (1 << 24) - 1; /* SPI-op maximum. */
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000524 spi_master_serprog.max_data_write = v;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000525 msg_pdbg(MSGHEADER "Maximum write-n length is %d\n", v);
526 }
527 if (!sp_docommand(S_CMD_Q_RDNMAXLEN, 0, NULL, 3, rbuf)) {
528 uint32_t v;
529 v = ((unsigned int)(rbuf[0]) << 0);
530 v |= ((unsigned int)(rbuf[1]) << 8);
531 v |= ((unsigned int)(rbuf[2]) << 16);
532 if (v == 0)
533 v = (1 << 24) - 1; /* SPI-op maximum. */
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000534 spi_master_serprog.max_data_read = v;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000535 msg_pdbg(MSGHEADER "Maximum read-n length is %d\n", v);
536 }
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000537 spispeed = extract_programmer_param("spispeed");
538 if (spispeed && strlen(spispeed)) {
539 uint32_t f_spi_req, f_spi;
540 uint8_t buf[4];
541 char *f_spi_suffix;
542
543 errno = 0;
544 f_spi_req = strtol(spispeed, &f_spi_suffix, 0);
545 if (errno != 0 || spispeed == f_spi_suffix) {
546 msg_perr("Error: Could not convert 'spispeed'.\n");
Stefan Taunere34e3e82013-01-01 00:06:51 +0000547 free(spispeed);
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000548 return 1;
549 }
550 if (strlen(f_spi_suffix) == 1) {
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000551 if (!strcasecmp(f_spi_suffix, "M")) {
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000552 f_spi_req *= 1000000;
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000553 } else if (!strcasecmp(f_spi_suffix, "k")) {
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000554 f_spi_req *= 1000;
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000555 } else {
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000556 msg_perr("Error: Garbage following 'spispeed' value.\n");
Stefan Taunere34e3e82013-01-01 00:06:51 +0000557 free(spispeed);
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000558 return 1;
559 }
560 } else if (strlen(f_spi_suffix) > 1) {
561 msg_perr("Error: Garbage following 'spispeed' value.\n");
Stefan Taunere34e3e82013-01-01 00:06:51 +0000562 free(spispeed);
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000563 return 1;
564 }
565
566 buf[0] = (f_spi_req >> (0 * 8)) & 0xFF;
567 buf[1] = (f_spi_req >> (1 * 8)) & 0xFF;
568 buf[2] = (f_spi_req >> (2 * 8)) & 0xFF;
569 buf[3] = (f_spi_req >> (3 * 8)) & 0xFF;
570
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000571 if (sp_check_commandavail(S_CMD_S_SPI_FREQ) == 0) {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000572 msg_pwarn(MSGHEADER "Warning: Setting the SPI clock rate is not supported!\n");
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000573 } else if (sp_docommand(S_CMD_S_SPI_FREQ, 4, buf, 4, buf) == 0) {
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000574 f_spi = buf[0];
575 f_spi |= buf[1] << (1 * 8);
576 f_spi |= buf[2] << (2 * 8);
577 f_spi |= buf[3] << (3 * 8);
578 msg_pdbg(MSGHEADER "Requested to set SPI clock frequency to %u Hz. "
579 "It was actually set to %u Hz\n", f_spi_req, f_spi);
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000580 } else {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000581 msg_pwarn(MSGHEADER "Setting SPI clock rate to %u Hz failed!\n", f_spi_req);
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000582 }
Stefan Taunerb98f6eb2012-08-13 16:33:04 +0000583 }
584 free(spispeed);
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000585 bt = serprog_buses_supported;
Niklas Söderlund2a95e872012-07-30 19:42:33 +0000586 if (sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL))
587 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000588 }
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000589
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000590 if (serprog_buses_supported & BUS_NONSPI) {
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000591 if (sp_check_commandavail(S_CMD_O_INIT) == 0) {
592 msg_perr("Error: Initialize operation buffer "
593 "not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000594 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000595 }
596
597 if (sp_check_commandavail(S_CMD_O_DELAY) == 0) {
598 msg_perr("Error: Write to opbuf: "
599 "delay not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000600 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000601 }
602
603 /* S_CMD_O_EXEC availability checked later. */
604
605 if (sp_check_commandavail(S_CMD_R_BYTE) == 0) {
606 msg_perr("Error: Single byte read not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000607 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000608 }
609 /* This could be translated to single byte reads (if missing),
610 * but now we don't support that. */
611 if (sp_check_commandavail(S_CMD_R_NBYTES) == 0) {
612 msg_perr("Error: Read n bytes not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000613 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000614 }
615 if (sp_check_commandavail(S_CMD_O_WRITEB) == 0) {
616 msg_perr("Error: Write to opbuf: "
617 "write byte not supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000618 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000619 }
620
621 if (sp_docommand(S_CMD_Q_WRNMAXLEN, 0, NULL, 3, rbuf)) {
622 msg_pdbg(MSGHEADER "Write-n not supported");
623 sp_max_write_n = 0;
624 } else {
625 sp_max_write_n = ((unsigned int)(rbuf[0]) << 0);
626 sp_max_write_n |= ((unsigned int)(rbuf[1]) << 8);
627 sp_max_write_n |= ((unsigned int)(rbuf[2]) << 16);
628 if (!sp_max_write_n) {
629 sp_max_write_n = (1 << 24);
630 }
631 msg_pdbg(MSGHEADER "Maximum write-n length is %d\n",
632 sp_max_write_n);
633 sp_write_n_buf = malloc(sp_max_write_n);
634 if (!sp_write_n_buf) {
635 msg_perr("Error: cannot allocate memory for "
636 "Write-n buffer\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000637 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000638 }
639 sp_write_n_bytes = 0;
640 }
641
642 if (sp_check_commandavail(S_CMD_Q_RDNMAXLEN) &&
643 (sp_docommand(S_CMD_Q_RDNMAXLEN, 0, NULL, 3, rbuf) == 0)) {
644 sp_max_read_n = ((unsigned int)(rbuf[0]) << 0);
645 sp_max_read_n |= ((unsigned int)(rbuf[1]) << 8);
646 sp_max_read_n |= ((unsigned int)(rbuf[2]) << 16);
647 msg_pdbg(MSGHEADER "Maximum read-n length is %d\n",
648 sp_max_read_n ? sp_max_read_n : (1 << 24));
649 } else {
650 msg_pdbg(MSGHEADER "Maximum read-n length "
651 "not reported\n");
652 sp_max_read_n = 0;
653 }
654
Urja Rannikkof3196df2009-07-21 13:02:59 +0000655 }
656
657 if (sp_docommand(S_CMD_Q_PGMNAME, 0, NULL, 16, pgmname)) {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000658 msg_pwarn("Warning: NAK to query programmer name\n");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000659 strcpy((char *)pgmname, "(unknown)");
660 }
661 pgmname[16] = 0;
Stefan Tauner31019d42011-10-22 21:45:27 +0000662 msg_pinfo(MSGHEADER "Programmer name is \"%s\"\n", pgmname);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000663
664 if (sp_docommand(S_CMD_Q_SERBUF, 0, NULL, 2, &sp_device_serbuf_size)) {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000665 msg_pwarn("Warning: NAK to query serial buffer size\n");
Urja Rannikkof3196df2009-07-21 13:02:59 +0000666 }
Stefan Tauner31019d42011-10-22 21:45:27 +0000667 msg_pdbg(MSGHEADER "Serial buffer size is %d\n",
Urja Rannikkof3196df2009-07-21 13:02:59 +0000668 sp_device_serbuf_size);
669
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000670 if (sp_check_commandavail(S_CMD_O_INIT)) {
671 /* This would be inconsistent. */
672 if (sp_check_commandavail(S_CMD_O_EXEC) == 0) {
673 msg_perr("Error: Execute operation buffer not "
674 "supported\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000675 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000676 }
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000677
678 if (sp_docommand(S_CMD_O_INIT, 0, NULL, 0, NULL)) {
679 msg_perr("Error: NAK to initialize operation buffer\n");
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000680 return 1;
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000681 }
682
683 if (sp_docommand(S_CMD_Q_OPBUF, 0, NULL, 2,
684 &sp_device_opbuf_size)) {
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000685 msg_pwarn("Warning: NAK to query operation buffer size\n");
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000686 }
Stefan Tauner31019d42011-10-22 21:45:27 +0000687 msg_pdbg(MSGHEADER "operation buffer size is %d\n",
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000688 sp_device_opbuf_size);
Elyes HAOUAS124ef382018-03-27 12:15:09 +0200689 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000690
Stefan Tauner92fefc92012-10-27 00:34:23 +0000691 if (sp_check_commandavail(S_CMD_S_PIN_STATE)) {
692 uint8_t en = 1;
693 if (sp_docommand(S_CMD_S_PIN_STATE, 1, &en, 0, NULL) != 0) {
694 msg_perr("Error: could not enable output buffers\n");
695 return 1;
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000696 } else {
Stefan Tauner92fefc92012-10-27 00:34:23 +0000697 msg_pdbg(MSGHEADER "Output drivers enabled\n");
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000698 }
699 } else {
Stefan Tauner92fefc92012-10-27 00:34:23 +0000700 msg_pdbg(MSGHEADER "Warning: Programmer does not support toggling its output drivers\n");
Anastasia Klimchukf02db802021-05-24 10:07:56 +1000701 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000702 sp_prev_was_write = 0;
703 sp_streamed_transmit_ops = 0;
704 sp_streamed_transmit_bytes = 0;
705 sp_opbuf_usage = 0;
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000706 if (serprog_buses_supported & BUS_SPI)
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000707 register_spi_master(&spi_master_serprog);
Carl-Daniel Hailfingereaacd2d2011-11-09 23:40:00 +0000708 if (serprog_buses_supported & BUS_NONSPI)
Carl-Daniel Hailfingera5bcbce2014-07-19 22:03:29 +0000709 register_par_master(&par_master_serprog, serprog_buses_supported & BUS_NONSPI);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000710 return 0;
711}
712
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000713/* Move an in flashrom buffer existing write-n operation to the on-device operation buffer. */
714static int sp_pass_writen(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000715{
716 unsigned char header[7];
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000717 msg_pspew(MSGHEADER "Passing write-n bytes=%d addr=0x%x\n", sp_write_n_bytes, sp_write_n_addr);
718 if (sp_streamed_transmit_bytes >= (7 + sp_write_n_bytes + sp_device_serbuf_size)) {
719 if (sp_flush_stream() != 0) {
720 return 1;
721 }
722 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000723 /* In case it's just a single byte send it as a single write. */
724 if (sp_write_n_bytes == 1) {
725 sp_write_n_bytes = 0;
726 header[0] = (sp_write_n_addr >> 0) & 0xFF;
727 header[1] = (sp_write_n_addr >> 8) & 0xFF;
728 header[2] = (sp_write_n_addr >> 16) & 0xFF;
729 header[3] = sp_write_n_buf[0];
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000730 if (sp_stream_buffer_op(S_CMD_O_WRITEB, 4, header) != 0)
731 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000732 sp_opbuf_usage += 5;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000733 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000734 }
735 header[0] = S_CMD_O_WRITEN;
736 header[1] = (sp_write_n_bytes >> 0) & 0xFF;
737 header[2] = (sp_write_n_bytes >> 8) & 0xFF;
738 header[3] = (sp_write_n_bytes >> 16) & 0xFF;
739 header[4] = (sp_write_n_addr >> 0) & 0xFF;
740 header[5] = (sp_write_n_addr >> 8) & 0xFF;
741 header[6] = (sp_write_n_addr >> 16) & 0xFF;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000742 if (serialport_write(header, 7) != 0) {
743 msg_perr(MSGHEADER "Error: cannot write write-n command\n");
744 return 1;
745 }
746 if (serialport_write(sp_write_n_buf, sp_write_n_bytes) != 0) {
747 msg_perr(MSGHEADER "Error: cannot write write-n data");
748 return 1;
749 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000750 sp_streamed_transmit_bytes += 7 + sp_write_n_bytes;
751 sp_streamed_transmit_ops += 1;
752 sp_opbuf_usage += 7 + sp_write_n_bytes;
753 sp_write_n_bytes = 0;
754 sp_prev_was_write = 0;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000755 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000756}
757
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000758static int sp_execute_opbuf_noflush(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000759{
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000760 if ((sp_max_write_n) && (sp_write_n_bytes)) {
761 if (sp_pass_writen() != 0) {
762 msg_perr("Error: could not transfer write buffer\n");
763 return 1;
764 }
765 }
766 if (sp_stream_buffer_op(S_CMD_O_EXEC, 0, NULL) != 0) {
767 msg_perr("Error: could not execute command buffer\n");
768 return 1;
769 }
770 msg_pspew(MSGHEADER "Executed operation buffer of %d bytes\n", sp_opbuf_usage);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000771 sp_opbuf_usage = 0;
772 sp_prev_was_write = 0;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000773 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000774}
775
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000776static int sp_execute_opbuf(void)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000777{
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000778 if (sp_execute_opbuf_noflush() != 0)
779 return 1;
780 if (sp_flush_stream() != 0)
781 return 1;
782
783 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000784}
785
David Hendricks8bb20212011-06-14 01:35:36 +0000786static int serprog_shutdown(void *data)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000787{
Urja Rannikkof3196df2009-07-21 13:02:59 +0000788 if ((sp_opbuf_usage) || (sp_max_write_n && sp_write_n_bytes))
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000789 if (sp_execute_opbuf() != 0)
790 msg_pwarn("Could not flush command buffer.\n");
Stefan Tauner92fefc92012-10-27 00:34:23 +0000791 if (sp_check_commandavail(S_CMD_S_PIN_STATE)) {
792 uint8_t dis = 0;
793 if (sp_docommand(S_CMD_S_PIN_STATE, 1, &dis, 0, NULL) == 0)
794 msg_pdbg(MSGHEADER "Output drivers disabled\n");
795 else
Stefan Taunerc6fa32d2013-01-04 22:54:07 +0000796 msg_pwarn(MSGHEADER "%s: Warning: could not disable output buffers\n", __func__);
Stefan Tauner92fefc92012-10-27 00:34:23 +0000797 }
Niklas Söderlund7145a502012-09-07 07:07:07 +0000798 /* FIXME: fix sockets on windows(?), especially closing */
799 serialport_shutdown(&sp_fd);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000800 if (sp_max_write_n)
801 free(sp_write_n_buf);
802 return 0;
803}
804
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000805static int sp_check_opbuf_usage(int bytes_to_be_added)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000806{
807 if (sp_device_opbuf_size <= (sp_opbuf_usage + bytes_to_be_added)) {
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000808 /* If this happens in the middle of a page load the page load will probably fail. */
809 msg_pwarn(MSGHEADER "Warning: executed operation buffer due to size reasons\n");
810 if (sp_execute_opbuf() != 0)
811 return 1;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000812 }
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000813 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000814}
815
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000816static void serprog_chip_writeb(const struct flashctx *flash, uint8_t val,
817 chipaddr addr)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000818{
Sean Nelson74e8af52010-01-10 01:06:23 +0000819 msg_pspew("%s\n", __func__);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000820 if (sp_max_write_n) {
821 if ((sp_prev_was_write)
822 && (addr == (sp_write_n_addr + sp_write_n_bytes))) {
823 sp_write_n_buf[sp_write_n_bytes++] = val;
824 } else {
825 if ((sp_prev_was_write) && (sp_write_n_bytes))
826 sp_pass_writen();
827 sp_prev_was_write = 1;
828 sp_write_n_addr = addr;
829 sp_write_n_bytes = 1;
830 sp_write_n_buf[0] = val;
831 }
832 sp_check_opbuf_usage(7 + sp_write_n_bytes);
833 if (sp_write_n_bytes >= sp_max_write_n)
834 sp_pass_writen();
835 } else {
836 /* We will have to do single writeb ops. */
837 unsigned char writeb_parm[4];
838 sp_check_opbuf_usage(6);
839 writeb_parm[0] = (addr >> 0) & 0xFF;
840 writeb_parm[1] = (addr >> 8) & 0xFF;
841 writeb_parm[2] = (addr >> 16) & 0xFF;
842 writeb_parm[3] = val;
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000843 sp_stream_buffer_op(S_CMD_O_WRITEB, 4, writeb_parm); // FIXME: return error
Urja Rannikkof3196df2009-07-21 13:02:59 +0000844 sp_opbuf_usage += 5;
845 }
846}
847
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000848static uint8_t serprog_chip_readb(const struct flashctx *flash,
849 const chipaddr addr)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000850{
851 unsigned char c;
852 unsigned char buf[3];
853 /* Will stream the read operation - eg. add it to the stream buffer, *
854 * then flush the buffer, then read the read answer. */
855 if ((sp_opbuf_usage) || (sp_max_write_n && sp_write_n_bytes))
856 sp_execute_opbuf_noflush();
857 buf[0] = ((addr >> 0) & 0xFF);
858 buf[1] = ((addr >> 8) & 0xFF);
859 buf[2] = ((addr >> 16) & 0xFF);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000860 sp_stream_buffer_op(S_CMD_R_BYTE, 3, buf); // FIXME: return error
861 sp_flush_stream(); // FIXME: return error
Stefan Tauner79587f52013-04-01 00:45:51 +0000862 if (serialport_read(&c, 1) != 0)
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000863 msg_perr(MSGHEADER "readb byteread"); // FIXME: return error
Stefan Taunerc2333752013-07-13 23:31:37 +0000864 msg_pspew("%s addr=0x%" PRIxPTR " returning 0x%02X\n", __func__, addr, c);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000865 return c;
866}
867
Uwe Hermann4e3d0b32010-03-25 23:18:41 +0000868/* Local version that really does the job, doesn't care of max_read_n. */
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000869static int sp_do_read_n(uint8_t * buf, const chipaddr addr, size_t len)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000870{
Urja Rannikkof3196df2009-07-21 13:02:59 +0000871 unsigned char sbuf[6];
Stefan Tauner0554ca52013-07-25 22:54:25 +0000872 msg_pspew("%s: addr=0x%" PRIxPTR " len=%zu\n", __func__, addr, len);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000873 /* Stream the read-n -- as above. */
874 if ((sp_opbuf_usage) || (sp_max_write_n && sp_write_n_bytes))
875 sp_execute_opbuf_noflush();
876 sbuf[0] = ((addr >> 0) & 0xFF);
877 sbuf[1] = ((addr >> 8) & 0xFF);
878 sbuf[2] = ((addr >> 16) & 0xFF);
879 sbuf[3] = ((len >> 0) & 0xFF);
880 sbuf[4] = ((len >> 8) & 0xFF);
881 sbuf[5] = ((len >> 16) & 0xFF);
882 sp_stream_buffer_op(S_CMD_R_NBYTES, 6, sbuf);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000883 if (sp_flush_stream() != 0)
884 return 1;
885 if (serialport_read(buf, len) != 0) {
886 msg_perr(MSGHEADER "Error: cannot read read-n data");
887 return 1;
888 }
889 return 0;
Urja Rannikkof3196df2009-07-21 13:02:59 +0000890}
891
892/* The externally called version that makes sure that max_read_n is obeyed. */
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000893static void serprog_chip_readn(const struct flashctx *flash, uint8_t * buf,
894 const chipaddr addr, size_t len)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000895{
896 size_t lenm = len;
897 chipaddr addrm = addr;
Stefan Tauner31019d42011-10-22 21:45:27 +0000898 while ((sp_max_read_n != 0) && (lenm > sp_max_read_n)) {
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000899 sp_do_read_n(&(buf[addrm-addr]), addrm, sp_max_read_n); // FIXME: return error
Urja Rannikkof3196df2009-07-21 13:02:59 +0000900 addrm += sp_max_read_n;
901 lenm -= sp_max_read_n;
902 }
Stefan Tauner31019d42011-10-22 21:45:27 +0000903 if (lenm)
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000904 sp_do_read_n(&(buf[addrm-addr]), addrm, lenm); // FIXME: return error
Urja Rannikkof3196df2009-07-21 13:02:59 +0000905}
906
Thomas Heijligencc853d82021-05-04 15:32:17 +0200907static void serprog_delay(unsigned int usecs)
Urja Rannikkof3196df2009-07-21 13:02:59 +0000908{
909 unsigned char buf[4];
Stefan Tauner31019d42011-10-22 21:45:27 +0000910 msg_pspew("%s usecs=%d\n", __func__, usecs);
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000911 if (!sp_check_commandavail(S_CMD_O_DELAY)) {
Stefan Taunerd7d423b2012-10-20 09:13:16 +0000912 msg_pdbg2("serprog_delay used, but programmer doesn't support delays natively - emulating\n");
Stefan Tauner31019d42011-10-22 21:45:27 +0000913 internal_delay(usecs);
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000914 return;
915 }
Urja Rannikkof3196df2009-07-21 13:02:59 +0000916 if ((sp_max_write_n) && (sp_write_n_bytes))
917 sp_pass_writen();
918 sp_check_opbuf_usage(5);
Stefan Tauner31019d42011-10-22 21:45:27 +0000919 buf[0] = ((usecs >> 0) & 0xFF);
920 buf[1] = ((usecs >> 8) & 0xFF);
921 buf[2] = ((usecs >> 16) & 0xFF);
922 buf[3] = ((usecs >> 24) & 0xFF);
Urja Rannikkof3196df2009-07-21 13:02:59 +0000923 sp_stream_buffer_op(S_CMD_O_DELAY, 4, buf);
924 sp_opbuf_usage += 5;
925 sp_prev_was_write = 0;
926}
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000927
Edward O'Callaghan5eca4272020-04-12 17:27:53 +1000928static int serprog_spi_send_command(const struct flashctx *flash,
Carl-Daniel Hailfinger8a3c60c2011-12-18 15:01:24 +0000929 unsigned int writecnt, unsigned int readcnt,
930 const unsigned char *writearr,
931 unsigned char *readarr)
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000932{
933 unsigned char *parmbuf;
934 int ret;
935 msg_pspew("%s, writecnt=%i, readcnt=%i\n", __func__, writecnt, readcnt);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000936 if ((sp_opbuf_usage) || (sp_max_write_n && sp_write_n_bytes)) {
937 if (sp_execute_opbuf() != 0) {
938 msg_perr("Error: could not execute command buffer before sending SPI commands.\n");
939 return 1;
940 }
941 }
942
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000943 parmbuf = malloc(writecnt + 6);
Stefan Taunerbdead0d2013-08-24 02:10:18 +0000944 if (!parmbuf) {
945 msg_perr("Error: could not allocate SPI send param buffer.\n");
946 return 1;
947 }
Urja Rannikkoc93f5f12011-09-15 23:38:14 +0000948 parmbuf[0] = (writecnt >> 0) & 0xFF;
949 parmbuf[1] = (writecnt >> 8) & 0xFF;
950 parmbuf[2] = (writecnt >> 16) & 0xFF;
951 parmbuf[3] = (readcnt >> 0) & 0xFF;
952 parmbuf[4] = (readcnt >> 8) & 0xFF;
953 parmbuf[5] = (readcnt >> 16) & 0xFF;
954 memcpy(parmbuf + 6, writearr, writecnt);
955 ret = sp_docommand(S_CMD_O_SPIOP, writecnt + 6, parmbuf, readcnt,
956 readarr);
957 free(parmbuf);
958 return ret;
959}
960
Thomas Heijligencc853d82021-05-04 15:32:17 +0200961static void *serprog_map(const char *descr, uintptr_t phys_addr, size_t len)
Urja Rannikko0b4ffd52015-06-29 23:24:23 +0000962{
963 /* Serprog transmits 24 bits only and assumes the underlying implementation handles any remaining bits
964 * correctly (usually setting them to one either in software (for FWH/LPC) or relying on the fact that
965 * the hardware observes a subset of the address bits only). Combined with the standard mapping of
966 * flashrom this creates a 16 MB-wide window just below the 4 GB boundary where serprog can operate (as
967 * needed for non-SPI chips). Below we make sure that the requested range is within this window. */
968 if ((phys_addr & 0xFF000000) == 0xFF000000) {
969 return (void*)phys_addr;
Urja Rannikko0b4ffd52015-06-29 23:24:23 +0000970 }
Elyes HAOUASec819d62019-06-09 17:50:51 +0200971 msg_pwarn(MSGHEADER "requested mapping %s is incompatible: 0x%zx bytes at 0x%0*" PRIxPTR ".\n",
972 descr, len, PRIxPTR_WIDTH, phys_addr);
973 return NULL;
Urja Rannikko0b4ffd52015-06-29 23:24:23 +0000974}
Thomas Heijligencc853d82021-05-04 15:32:17 +0200975
976const struct programmer_entry programmer_serprog = {
977 .name = "serprog",
978 .type = OTHER,
979 /* FIXME */
980 .devs.note = "All programmer devices speaking the serprog protocol\n",
981 .init = serprog_init,
982 .map_flash_region = serprog_map,
983 .unmap_flash_region = fallback_unmap,
984 .delay = serprog_delay,
985};