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-rw-r--r--util/inteltool/gpio.c112
-rw-r--r--util/inteltool/inteltool.c16
-rw-r--r--util/inteltool/inteltool.h2
3 files changed, 103 insertions, 27 deletions
diff --git a/util/inteltool/gpio.c b/util/inteltool/gpio.c
index 8b85593942..e42b9da445 100644
--- a/util/inteltool/gpio.c
+++ b/util/inteltool/gpio.c
@@ -20,6 +20,8 @@
#include <stdio.h>
#include "inteltool.h"
+typedef struct { uint16_t addr; uint32_t def; } gpio_default_t;
+
static const io_register_t ich0_gpio_registers[] = {
{ 0x00, 4, "GPIO_USE_SEL" },
{ 0x04, 4, "GP_IO_SEL" },
@@ -256,14 +258,79 @@ static const io_register_t pch_gpio_registers[] = {
{ 0x78, 4, "RESERVED" },
{ 0x7c, 4, "RESERVED" },
};
+static uint16_t gpiobase;
+
+static void print_reg(const io_register_t *const reg)
+{
+ switch (reg->size) {
+ case 4:
+ printf("gpiobase+0x%04x: 0x%08x (%s)\n",
+ reg->addr, inl(gpiobase+reg->addr), reg->name);
+ break;
+ case 2:
+ printf("gpiobase+0x%04x: 0x%04x (%s)\n",
+ reg->addr, inw(gpiobase+reg->addr), reg->name);
+ break;
+ case 1:
+ printf("gpiobase+0x%04x: 0x%02x (%s)\n",
+ reg->addr, inb(gpiobase+reg->addr), reg->name);
+ break;
+ }
+}
-int print_gpios(struct pci_dev *sb)
+static uint32_t get_diff(const io_register_t *const reg, const uint32_t def)
{
- int i, size;
- uint16_t gpiobase;
+ uint32_t gpio_diff = 0;
+ switch (reg->size) {
+ case 4:
+ gpio_diff = def ^ inl(gpiobase+reg->addr);
+ break;
+ case 2:
+ gpio_diff = (uint16_t)def ^ inw(gpiobase+reg->addr);
+ break;
+ case 1:
+ gpio_diff = (uint8_t)def ^ inb(gpiobase+reg->addr);
+ break;
+ }
+ return gpio_diff;
+}
+
+static void print_diff(const io_register_t *const reg,
+ const uint32_t def, const uint32_t diff)
+{
+ switch (reg->size) {
+ case 4:
+ printf("gpiobase+0x%04x: 0x%08x (%s) DEFAULT\n",
+ reg->addr, def, reg->name);
+ printf("gpiobase+0x%04x: 0x%08x (%s) DIFF\n",
+ reg->addr, diff, reg->name);
+ break;
+ case 2:
+ printf("gpiobase+0x%04x: 0x%04x (%s) DEFAULT\n",
+ reg->addr, def, reg->name);
+ printf("gpiobase+0x%04x: 0x%04x (%s) DIFF\n",
+ reg->addr, diff, reg->name);
+ break;
+ case 1:
+ printf("gpiobase+0x%04x: 0x%02x (%s) DEFAULT\n",
+ reg->addr, def, reg->name);
+ printf("gpiobase+0x%04x: 0x%02x (%s) DIFF\n",
+ reg->addr, diff, reg->name);
+ break;
+ }
+}
+
+int print_gpios(struct pci_dev *sb, int show_all, int show_diffs)
+{
+ int i, j, size, defaults_size = 0;
const io_register_t *gpio_registers;
+ const gpio_default_t *gpio_defaults;
+ uint32_t gpio_diff;
- printf("\n============= GPIOS =============\n\n");
+ if (show_diffs && !show_all)
+ printf("\n========== GPIO DIFFS ===========\n\n");
+ else
+ printf("\n============= GPIOS =============\n\n");
switch (sb->device_id) {
case PCI_DEVICE_ID_INTEL_Z68:
@@ -376,26 +443,25 @@ int print_gpios(struct pci_dev *sb)
printf("GPIOBASE = 0x%04x (IO)\n\n", gpiobase);
+ j = 0;
for (i = 0; i < size; i++) {
- switch (gpio_registers[i].size) {
- case 4:
- printf("gpiobase+0x%04x: 0x%08x (%s)\n",
- gpio_registers[i].addr,
- inl(gpiobase+gpio_registers[i].addr),
- gpio_registers[i].name);
- break;
- case 2:
- printf("gpiobase+0x%04x: 0x%04x (%s)\n",
- gpio_registers[i].addr,
- inw(gpiobase+gpio_registers[i].addr),
- gpio_registers[i].name);
- break;
- case 1:
- printf("gpiobase+0x%04x: 0x%02x (%s)\n",
- gpio_registers[i].addr,
- inb(gpiobase+gpio_registers[i].addr),
- gpio_registers[i].name);
- break;
+ if (show_all)
+ print_reg(&gpio_registers[i]);
+
+ if (show_diffs &&
+ (j < defaults_size) &&
+ (gpio_defaults[j].addr == gpio_registers[i].addr)) {
+ gpio_diff = get_diff(&gpio_registers[i],
+ gpio_defaults[j].def);
+ if (gpio_diff) {
+ if (!show_all)
+ print_reg(&gpio_registers[i]);
+ print_diff(&gpio_registers[i],
+ gpio_defaults[j].def, gpio_diff);
+ if (!show_all)
+ printf("\n");
+ }
+ j++;
}
}
diff --git a/util/inteltool/inteltool.c b/util/inteltool/inteltool.c
index d56d0580fa..2396eb04a2 100644
--- a/util/inteltool/inteltool.c
+++ b/util/inteltool/inteltool.c
@@ -197,11 +197,12 @@ void print_version(void)
void print_usage(const char *name)
{
- printf("usage: %s [-vh?grpmedPMa]\n", name);
+ printf("usage: %s [-vh?gGrpmedPMa]\n", name);
printf("\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n\n"
" -g | --gpio: dump soutbridge GPIO registers\n"
+ " -G | --gpio-diffs: show GPIO differences from defaults\n"
" -r | --rcba: dump soutbridge RCBA registers\n"
" -p | --pmbase: dump soutbridge Power Management registers\n\n"
" -m | --mchbar: dump northbridge Memory Controller registers\n"
@@ -227,11 +228,13 @@ int main(int argc, char *argv[])
int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
int dump_pciexbar = 0, dump_coremsrs = 0, dump_ambs = 0;
+ int show_gpio_diffs = 0;
static struct option long_options[] = {
{"version", 0, 0, 'v'},
{"help", 0, 0, 'h'},
{"gpios", 0, 0, 'g'},
+ {"gpio-diffs", 0, 0, 'G'},
{"mchbar", 0, 0, 'm'},
{"rcba", 0, 0, 'r'},
{"pmbase", 0, 0, 'p'},
@@ -244,7 +247,7 @@ int main(int argc, char *argv[])
{0, 0, 0, 0}
};
- while ((opt = getopt_long(argc, argv, "vh?grpmedPMaA",
+ while ((opt = getopt_long(argc, argv, "vh?gGrpmedPMaA",
long_options, &option_index)) != EOF) {
switch (opt) {
case 'v':
@@ -254,6 +257,9 @@ int main(int argc, char *argv[])
case 'g':
dump_gpios = 1;
break;
+ case 'G':
+ show_gpio_diffs = 1;
+ break;
case 'm':
dump_mchbar = 1;
break;
@@ -277,6 +283,7 @@ int main(int argc, char *argv[])
break;
case 'a':
dump_gpios = 1;
+ show_gpio_diffs = 1;
dump_mchbar = 1;
dump_rcba = 1;
dump_pmbase = 1;
@@ -393,7 +400,10 @@ int main(int argc, char *argv[])
/* Now do the deed */
if (dump_gpios) {
- print_gpios(sb);
+ print_gpios(sb, 1, show_gpio_diffs);
+ printf("\n\n");
+ } else if (show_gpio_diffs) {
+ print_gpios(sb, 0, show_gpio_diffs);
printf("\n\n");
}
diff --git a/util/inteltool/inteltool.h b/util/inteltool/inteltool.h
index ac23fe143a..5a6dcc8f0d 100644
--- a/util/inteltool/inteltool.h
+++ b/util/inteltool/inteltool.h
@@ -164,7 +164,7 @@ int print_intel_core_msrs(void);
int print_mchbar(struct pci_dev *nb, struct pci_access *pacc);
int print_pmbase(struct pci_dev *sb, struct pci_access *pacc);
int print_rcba(struct pci_dev *sb);
-int print_gpios(struct pci_dev *sb);
+int print_gpios(struct pci_dev *sb, int show_all, int show_diffs);
int print_epbar(struct pci_dev *nb);
int print_dmibar(struct pci_dev *nb);
int print_pciexbar(struct pci_dev *nb);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 19:53:26 +0000