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#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include <nvif/client.h>
#include <nvif/device.h>
#include <nvif/class.h>
#include "util.h"
static void
show_adapter(struct i2c_adapter *adap, int adapter)
{
printf("i2c %d: %s\n", adapter, adap->name);
}
static struct i2c_adapter *
find_adapter(struct nvif_device *device, int adapter)
{
struct nvkm_i2c *i2c = nvxx_device(device)->i2c;
struct nvkm_i2c_bus *bus;
struct nvkm_i2c_aux *aux;
int i = 0;
if (i2c) {
list_for_each_entry(bus, &i2c->bus, head) {
if (i++ == adapter)
return &bus->i2c;
}
list_for_each_entry(aux, &i2c->aux, head) {
if (i++ == adapter)
return &aux->i2c;
}
}
return NULL;
}
int
main(int argc, char **argv)
{
struct nvif_client client;
struct nvif_device device;
struct i2c_adapter *adap;
int addr = -1, reg = -1, val = -1;
int action = -1, index = -1;
int ret, c;
while ((c = getopt(argc, argv, "-"U_GETOPT)) != -1) {
switch (c) {
case 1:
if (action < 0) {
if (!strcasecmp(optarg, "scan"))
action = 0;
else
if (!strcasecmp(optarg, "rd"))
action = 2;
else
if (!strcasecmp(optarg, "wr"))
action = 3;
else
return -EINVAL;
} else
if (action >= 0 && index < 0) {
index = strtoul(optarg, NULL, 0);
} else
if (action >= 0 && addr < 0) {
addr = strtoul(optarg, NULL, 0);
if (addr >= 128)
return -EINVAL;
} else
if (action >= 2 && reg < 0) {
reg = strtoul(optarg, NULL, 0);
if (addr >= 256)
return -EINVAL;
} else
if (action >= 3 && val < 0) {
val = strtoul(optarg, NULL, 0);
if (addr >= 256)
return -EINVAL;
} else
return -EINVAL;
break;
default:
if (!u_option(c))
return 1;
break;
}
}
ret = u_device("lib", argv[0], "error", true, true,
(1ULL << NVKM_SUBDEV_PCI) |
(1ULL << NVKM_SUBDEV_VBIOS) |
(1ULL << NVKM_SUBDEV_I2C),
0x00000000, &client, &device);
if (action < 0) {
for (index = 0; (adap = find_adapter(&device, index)); index++) {
show_adapter(adap, index);
}
} else {
adap = find_adapter(&device, index);
if (!adap) {
ret = -ENOENT;
goto done;
}
show_adapter(adap, index);
}
switch (action) {
case 0:
if (addr < 0) {
for (addr = 0; addr < 128; addr++) {
if ((addr & 0x0f) == 0x00)
printf("%02x:", addr);
if ((val = nvkm_rdi2cr(adap, addr, 0x00)) >= 0)
printf(" %02x", addr);
else
printf(" --");
if ((addr & 0x0f) == 0x0f)
printf("\n");
fflush(stdout);
}
break;
} else {
for (reg = 0; reg < 256; reg++) {
if ((reg & 0x0f) == 0x00)
printf("%02x:", reg);
if ((val = nvkm_rdi2cr(adap, addr, reg)) >= 0)
printf(" %02x", val);
else
printf(" --");
if ((reg & 0x0f) == 0x0f)
printf("\n");
fflush(stdout);
}
}
break;
case 2:
val = nvkm_rdi2cr(adap, addr, reg);
printf("%02x[%02x]: ", addr, reg);
if (val < 0)
printf("%s\n", strerror(val));
else
printf("%02x\n", val);
break;
case 3:
printf("%02x[%02x]: %02x", addr, reg, val);
ret = nvkm_wri2cr(adap, addr, reg, val);
if (ret < 0)
printf("%s", strerror(ret));
printf("\n");
break;
}
done:
nvif_device_fini(&device);
nvif_client_fini(&client);
return ret;
}
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