diff options
Diffstat (limited to 'src/drivers/generic/debug')
-rw-r--r-- | src/drivers/generic/debug/Config.lb | 2 | ||||
-rw-r--r-- | src/drivers/generic/debug/chip.h | 4 | ||||
-rw-r--r-- | src/drivers/generic/debug/debug_dev.c | 106 |
3 files changed, 112 insertions, 0 deletions
diff --git a/src/drivers/generic/debug/Config.lb b/src/drivers/generic/debug/Config.lb new file mode 100644 index 0000000000..df69ac19f3 --- /dev/null +++ b/src/drivers/generic/debug/Config.lb @@ -0,0 +1,2 @@ +config chip.h +object debug_dev.o diff --git a/src/drivers/generic/debug/chip.h b/src/drivers/generic/debug/chip.h new file mode 100644 index 0000000000..78ce2159a1 --- /dev/null +++ b/src/drivers/generic/debug/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations drivers_generic_debug_ops; + +struct drivers_generic_debug_config { +}; diff --git a/src/drivers/generic/debug/debug_dev.c b/src/drivers/generic/debug/debug_dev.c new file mode 100644 index 0000000000..712a7e3082 --- /dev/null +++ b/src/drivers/generic/debug/debug_dev.c @@ -0,0 +1,106 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.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 i,j,k; + + for(i=0;i<=15;i++) { + for(j=0;j<=0x1f;j++) { + for (k=0;k<=6;k++){ + dev = dev_find_slot(i, PCI_DEVFN(j, k)); + if(!dev) { + continue; + } + if(!dev->enabled) { + continue; + } + printk_debug("\n%02x:%02x:%02x aka %s",i,j,k, dev_path(dev)); + print_pci_regs(dev); + } + } + } + +} + +static void debug_init(device_t dev) +{ + unsigned bus; + unsigned devfn; + +// print_pci_regs_all(); + + print_mem(); +#if 0 + 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); + } +#endif +} + +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, +}; |