ectool: Add an option to get and use EC ports from /proc/ioports
There are boards that don't use ports 0x62 and 0x66 for EC, e.g. Dell Latitude E6230 uses 0x930 and 0x934. Change-Id: Ie3005f5cd6e37206ef187267b0542efdeb26b3af Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/23430 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
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51895d1838
commit
2e8f4ccfe6
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@ -94,7 +94,7 @@ func MakeLogs(outDir string) {
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}
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RunAndSave(outDir+"/inteltool.log", "../inteltool/inteltool", inteltoolArgs)
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RunAndSave(outDir+"/ectool.log", "../ectool/ectool", "-d")
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RunAndSave(outDir+"/ectool.log", "../ectool/ectool", "-pd")
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RunAndSave(outDir+"/superiotool.log", "../superiotool/superiotool", "-ade")
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SysDir := "/sys/class/sound/card0/"
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@ -16,12 +16,16 @@
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#if !(defined __NetBSD__ || defined __OpenBSD__)
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#include <sys/io.h>
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#endif
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#include "ec.h"
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static int ec_data = 0x62;
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static int ec_sc = 0x66;
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#if defined __NetBSD__ || defined __OpenBSD__
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#include <machine/sysarch.h>
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static uint8_t inb(unsigned port)
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@ -45,7 +49,7 @@ int send_ec_command(uint8_t command)
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int timeout;
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timeout = 0x7ff;
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while ((inb(EC_SC) & EC_IBF) && --timeout) {
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while ((inb(ec_sc) & EC_IBF) && --timeout) {
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usleep(10);
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if ((timeout & 0xff) == 0)
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debug(".");
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@ -56,7 +60,7 @@ int send_ec_command(uint8_t command)
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// return -1;
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}
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outb(command, EC_SC);
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outb(command, ec_sc);
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return 0;
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}
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@ -65,7 +69,7 @@ int send_ec_data(uint8_t data)
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int timeout;
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timeout = 0x7ff;
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while ((inb(EC_SC) & EC_IBF) && --timeout) { // wait for IBF = 0
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while ((inb(ec_sc) & EC_IBF) && --timeout) { // wait for IBF = 0
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usleep(10);
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if ((timeout & 0xff) == 0)
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debug(".");
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@ -75,14 +79,14 @@ int send_ec_data(uint8_t data)
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// return -1;
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}
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outb(data, EC_DATA);
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outb(data, ec_data);
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return 0;
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}
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int send_ec_data_nowait(uint8_t data)
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{
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outb(data, EC_DATA);
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outb(data, ec_data);
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return 0;
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}
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@ -94,9 +98,9 @@ uint8_t recv_ec_data(void)
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timeout = 0x7fff;
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while (--timeout) { // Wait for OBF = 1
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if (inb(EC_SC) & EC_OBF) {
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if (inb(ec_sc) & EC_OBF)
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break;
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}
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usleep(10);
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if ((timeout & 0xff) == 0)
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debug(".");
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@ -106,7 +110,7 @@ uint8_t recv_ec_data(void)
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// return -1;
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}
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data = inb(EC_DATA);
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data = inb(ec_data);
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debug("recv_ec_data: 0x%02x\n", data);
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return data;
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@ -165,3 +169,32 @@ uint8_t ec_query(void)
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send_ec_command(QR_EC);
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return recv_ec_data();
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}
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int get_ec_ports(void)
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{
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FILE *fp = fopen("/proc/ioports", "r");
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int data = 0, cmd = 0;
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char line[100];
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if (fp == NULL)
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return -1;
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while (!feof(fp) && (data == 0 || cmd == 0)) {
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fgets(line, sizeof(line), fp);
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if (strstr(line, "EC data") != NULL)
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data = strtol(line, NULL, 16);
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if (strstr(line, "EC cmd") != NULL)
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cmd = strtol(line, NULL, 16);
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}
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fclose(fp);
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if (data != 0 && cmd != 0) {
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debug("EC data = 0x%x, EC cmd = 0x%x\n", data, cmd);
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ec_data = data;
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ec_sc = cmd;
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} else {
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return -1;
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}
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return 0;
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}
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@ -16,9 +16,6 @@
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#ifndef _EC_H
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#define _EC_H
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#define EC_DATA 0x62
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#define EC_SC 0x66
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/* EC_SC input */
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#define EC_SMI_EVT (1 << 6) // 1: SMI event pending
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#define EC_SCI_EVT (1 << 5) // 1: SCI event pending
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@ -47,4 +44,5 @@ uint8_t ec_ext_read(uint16_t addr);
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int ec_ext_write(uint16_t addr, uint8_t data);
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uint8_t ec_idx_read(uint16_t addr);
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uint8_t ec_query(void);
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int get_ec_ports(void);
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#endif
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@ -62,6 +62,7 @@ void print_usage(const char *name)
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" -v | --version: print the version\n"
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" -h | --help: print this help\n\n"
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" -V | --verbose: print debug information\n"
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" -p | --getports: get EC data & cmd ports from /proc/ioports\n"
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" -d | --dump: print RAM\n"
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" -i | --idx: print IDX RAM & RAM\n"
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" -q | --query: print query byte\n"
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@ -71,7 +72,7 @@ void print_usage(const char *name)
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exit(1);
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}
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int verbose = 0, dump_idx = 0, dump_ram = 0, dump_query = 0;
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int verbose = 0, dump_idx = 0, dump_ram = 0, dump_query = 0, get_ports = 0;
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int main(int argc, char *argv[])
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{
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@ -85,10 +86,11 @@ int main(int argc, char *argv[])
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{"verbose", 0, 0, 'V'},
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{"idx", 0, 0, 'i'},
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{"query", 0, 0, 'q'},
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{"getports", 0, 0, 'p'},
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{0, 0, 0, 0}
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};
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while ((opt = getopt_long(argc, argv, "vh?Vidqw:z:",
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while ((opt = getopt_long(argc, argv, "vh?Vidqpw:z:",
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long_options, &option_index)) != EOF) {
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switch (opt) {
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case 'v':
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@ -114,6 +116,9 @@ int main(int argc, char *argv[])
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case 'q':
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dump_query = 1;
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break;
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case 'p':
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get_ports = 1;
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break;
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case 'h':
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case '?':
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default:
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@ -123,6 +128,10 @@ int main(int argc, char *argv[])
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}
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}
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if (get_ports && get_ec_ports() != 0)
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fprintf(stderr, "Cannot get EC ports from /proc/ioports, "
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"fallback to default.");
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if (iopl(3)) {
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printf("You need to be root.\n");
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exit(1);
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