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#include <console/console.h>
#include <device/device.h>
#include <device/smbus.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <cpu/x86/msr.h>
#include "chip.h"
static void print_pci_regs(struct device *dev)
{
uint8_t byte;
int i;
for(i=0;i<256;i++) {
byte = pci_read_config8(dev, i);
if((i & 0xf)==0) printk_debug("\n%02x:",i);
printk_debug(" %02x",byte);
}
printk_debug("\n");
}
static void print_mem(void)
{
unsigned int i;
unsigned int start = 0xfffff000;
for(i=start;i<0xffffffff;i++) {
if((i & 0xf)==0) printk_debug("\n %08x:",i);
printk_debug(" %02x",(unsigned char)*((unsigned char *)i));
}
printk_debug(" %02x\n",(unsigned char)*((unsigned char *)i));
}
static void print_pci_regs_all(void)
{
struct device *dev;
unsigned char bus, device, function;
for(bus=0; bus<=256; bus++) {
for(device=0; device<=0x1f; device++) {
for (function=0; function<=7; function++){
unsigned devfn;
devfn = PCI_DEVFN(device, function);
dev = dev_find_slot(bus, devfn);
if(!dev) {
continue;
}
if(!dev->enabled) {
continue;
}
printk_debug("\n%02x:%02x:%02x aka %s",
bus, device, function, dev_path(dev));
print_pci_regs(dev);
}
}
}
}
static void print_cpuid()
{
msr_t msr;
unsigned index;
unsigned eax, ebx, ecx, edx;
index = 0x80000007;
printk_debug("calling cpuid 0x%08x\n", index);
asm volatile(
"cpuid"
: "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
: "a" (index)
);
printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n",
index, eax, ebx, ecx, edx);
if (edx & (3 << 1)) {
index = 0xC0010042;
printk_debug("Reading msr: 0x%08x\n", index);
msr = rdmsr(index);
printk_debug("msr[0x%08x]: 0x%08x%08x\n",
index, msr.hi, msr.hi);
}
}
static void print_smbus_regs(struct device *dev)
{
int j;
printk_debug("smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link );
printk_debug("%s", dev_path(dev));
for(j = 0; j < 256; j++) {
int status;
unsigned char byte;
if ((j & 0xf) == 0) {
printk_debug("\r\n%02x: ", j);
}
status = smbus_read_byte(dev, j);
if (status < 0) {
printk_debug("bad device status= %08x\r\n", status);
break;
}
byte = status & 0xff;
printk_debug("%02x ", byte);
}
printk_debug("\r\n");
}
static void print_smbus_regs_all(struct device *dev)
{
struct device *child;
int i;
if (dev->enabled && dev->path.type == DEVICE_PATH_I2C)
{
// Here don't need to call smbus_set_link, because we scan it from top to down
if( dev->bus->dev->path.type == DEVICE_PATH_I2C) { // it's under i2c MUX so set mux at first
if(ops_smbus_bus(get_pbus_smbus(dev->bus->dev))) {
if(dev->bus->dev->ops && dev->bus->dev->ops->set_link)
dev->bus->dev->ops->set_link(dev->bus->dev, dev->bus->link);
}
}
if(ops_smbus_bus(get_pbus_smbus(dev))) print_smbus_regs(dev);
}
for(i=0; i< dev->links; i++) {
for (child = dev->link[i].children; child; child = child->sibling) {
print_smbus_regs_all(child);
}
}
}
static void debug_init(device_t dev)
{
device_t parent;
if (!dev->enabled)
return;
switch(dev->path.u.pnp.device) {
#if CONFIG_CHIP_NAME
case 0:
parent = dev->bus->dev;
printk_debug("DEBUG: %s", dev_path(parent));
if(parent->chip_ops && parent->chip_ops->name) {
printk_debug(": %s\n", parent->chip_ops->name);
} else {
printk_debug("\n");
}
break;
#endif
case 1:
print_pci_regs_all();
break;
case 2:
print_mem();
break;
case 3:
print_cpuid();
break;
case 4:
print_smbus_regs_all(&dev_root);
break;
}
}
static void debug_noop(device_t dummy)
{
}
static struct device_operations debug_operations = {
.read_resources = debug_noop,
.set_resources = debug_noop,
.enable_resources = debug_noop,
.init = debug_init,
};
static void enable_dev(struct device *dev)
{
dev->ops = &debug_operations;
}
struct chip_operations drivers_generic_debug_ops = {
CHIP_NAME("Debug device")
.enable_dev = enable_dev,
};
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