/**
* pciinfo() - Show a list of devices on the PCI bus
*
* Show information about devices on PCI bus. Depending on @short_pci_listing
* the output will be more or less exhaustive.
*
* @bus_num: The number of the bus to be scanned
* @short_pci_listing: true to use short form, showing only a brief header
* for each device
*/
void pciinfo(int bus_num, int short_pci_listing)
{
struct pci_controller *hose = pci_bus_to_hose(bus_num);
int device;
int function;
unsigned char header_type;
unsigned short vendor_id;
pci_dev_t dev;
int ret;
if (!hose)
return;
pciinfo_header(bus_num, short_pci_listing);
for (device = 0; device < PCI_MAX_PCI_DEVICES; device++) {
header_type = 0;
vendor_id = 0;
for (function = 0; function < PCI_MAX_PCI_FUNCTIONS;
function++) {
/*
* If this is not a multi-function device, we skip
* the rest.
*/
if (function && !(header_type & 0x80))
break;
dev = PCI_BDF(bus_num, device, function);
if (pci_skip_dev(hose, dev))
continue;
ret = pci_read_config_word(dev, PCI_VENDOR_ID,
&vendor_id);
if (ret)
goto error;
if ((vendor_id == 0xFFFF) || (vendor_id == 0x0000))
continue;
if (!function) {
pci_read_config_byte(dev, PCI_HEADER_TYPE,
&header_type);
}
if (short_pci_listing) {
printf("%02x.%02x.%02x ", bus_num, device,
function);
pci_header_show_brief(dev);
} else {
printf("\nFound PCI device %02x.%02x.%02x:\n",
bus_num, device, function);
pci_header_show(dev);
}
}
}
return;
error:
printf("Cannot read bus configuration: %d\n", ret);
}
/*
* Subroutine: pciinfo
*
* Description: Show information about devices on PCI bus.
* Depending on the define CONFIG_SYS_SHORT_PCI_LISTING
* the output will be more or less exhaustive.
*
* Inputs: bus_no the number of the bus to be scanned.
*
* Return: None
*
*/
void pciinfo(u32 BusNum)
{
int Device;
int Function;
unsigned char HeaderType;
unsigned short VendorID;
pci_dev_t dev;
int ShortPCIListing;
printf("Scanning PCI devices on bus %d\r\n", BusNum);
ShortPCIListing = 0;
if (ShortPCIListing)
{
printf("BusDevFun VendorId DeviceId Device Class Sub-Class\r\n");
printf("_____________________________________________________________\r\n");
}
for (Device = 0; Device < PCI_MAX_PCI_DEVICES; Device++)
{
HeaderType = 0;
VendorID = 0;
for (Function = 0; Function < PCI_MAX_PCI_FUNCTIONS; Function++)
{
/*
* If this is not a multi-function device, we skip the rest.
*/
if (Function && !(HeaderType & 0x80))
break;
dev = PCI_BDF(BusNum, Device, Function);
pci_read_config_word(dev, PCI_VENDOR_ID, &VendorID);
if ((VendorID == 0xFFFF) || (VendorID == 0x0000))
continue;
if (!Function) pci_read_config_byte(dev, PCI_HEADER_TYPE, &HeaderType);
if (ShortPCIListing)
{
printf("%02x %02x %02x ", BusNum, Device, Function);
pci_header_show_brief(dev);
}
else
{
printf("\nFound PCI device %02x %02x %02x:\r\n",
BusNum, Device, Function);
pci_header_show(dev);
}
}
}
}
static void pciinfo(struct udevice *bus, bool short_listing)
{
struct udevice *dev;
pciinfo_header(bus->seq, short_listing);
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
struct pci_child_platdata *pplat;
pplat = dev_get_parent_platdata(dev);
if (short_listing) {
printf("%02x.%02x.%02x ", bus->seq,
PCI_DEV(pplat->devfn), PCI_FUNC(pplat->devfn));
pci_header_show_brief(dev);
} else {
printf("\nFound PCI device %02x.%02x.%02x:\n", bus->seq,
PCI_DEV(pplat->devfn), PCI_FUNC(pplat->devfn));
pci_header_show(dev);
}
}
}
/*
* Subroutine: pciinfo
*
* Description: Show information about devices on PCI bus.
* Depending on the define CONFIG_SYS_SHORT_PCI_LISTING
* the output will be more or less exhaustive.
*
* Inputs: bus_no the number of the bus to be scanned.
*
* Return: None
*
*/
void pciinfo(int BusNum, int ShortPCIListing)
{
struct pci_controller *hose = pci_bus_to_hose(BusNum);
int Device;
int Function;
unsigned char HeaderType;
unsigned short VendorID;
pci_dev_t dev;
int ret;
if (!hose)
return;
printf("Scanning PCI devices on bus %d\n", BusNum);
if (ShortPCIListing) {
printf("BusDevFun VendorId DeviceId Device Class Sub-Class\n");
printf("_____________________________________________________________\n");
}
for (Device = 0; Device < PCI_MAX_PCI_DEVICES; Device++) {
HeaderType = 0;
VendorID = 0;
for (Function = 0; Function < PCI_MAX_PCI_FUNCTIONS; Function++) {
/*
* If this is not a multi-function device, we skip the rest.
*/
if (Function && !(HeaderType & 0x80))
break;
dev = PCI_BDF(BusNum, Device, Function);
if (pci_skip_dev(hose, dev))
continue;
ret = pci_read_config_word(dev, PCI_VENDOR_ID,
&VendorID);
if (ret)
goto error;
if ((VendorID == 0xFFFF) || (VendorID == 0x0000))
continue;
if (!Function) pci_read_config_byte(dev, PCI_HEADER_TYPE, &HeaderType);
if (ShortPCIListing)
{
printf("%02x.%02x.%02x ", BusNum, Device, Function);
pci_header_show_brief(dev);
}
else
{
printf("\nFound PCI device %02x.%02x.%02x:\n",
BusNum, Device, Function);
pci_header_show(dev);
}
}
}
return;
error:
printf("Cannot read bus configuration: %d\n", ret);
}
/* PCI Configuration Space access commands
*
* Syntax:
* pci display[.b, .w, .l] bus.device.function} [addr] [len]
* pci next[.b, .w, .l] bus.device.function [addr]
* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
static int do_pci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr = 0, value = 0, size = 0;
pci_dev_t bdf = 0;
char cmd = 's';
if (argc > 1)
cmd = argv[1][0];
switch (cmd) {
case 'd': /* display */
case 'n': /* next */
case 'm': /* modify */
case 'w': /* write */
/* Check for a size specification. */
size = cmd_get_data_size(argv[1], 4);
if (argc > 3)
addr = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
value = simple_strtoul(argv[4], NULL, 16);
case 'h': /* header */
if (argc < 3)
goto usage;
if ((bdf = get_pci_dev(argv[2])) == -1)
return 1;
break;
#ifdef CONFIG_CMD_PCI_ENUM
case 'e':
break;
#endif
default: /* scan bus */
value = 1; /* short listing */
bdf = 0; /* bus number */
if (argc > 1) {
if (argv[argc-1][0] == 'l') {
value = 0;
argc--;
}
if (argc > 1)
bdf = simple_strtoul(argv[1], NULL, 16);
}
pciinfo(bdf, value);
return 0;
}
switch (argv[1][0]) {
case 'h': /* header */
pci_header_show(bdf);
return 0;
case 'd': /* display */
return pci_cfg_display(bdf, addr, size, value);
#ifdef CONFIG_CMD_PCI_ENUM
case 'e':
pci_init();
return 0;
#endif
case 'n': /* next */
if (argc < 4)
goto usage;
return pci_cfg_modify(bdf, addr, size, value, 0);
case 'm': /* modify */
if (argc < 4)
goto usage;
return pci_cfg_modify(bdf, addr, size, value, 1);
case 'w': /* write */
if (argc < 5)
goto usage;
return pci_cfg_write(bdf, addr, size, value);
}
return 1;
usage:
return CMD_RET_USAGE;
}
/* PCI Configuration Space access commands
*
* Syntax:
* pci display[.b, .w, .l] bus.device.function} [addr] [len]
* pci next[.b, .w, .l] bus.device.function [addr]
* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
static int do_pci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr = 0, value = 0, cmd_size = 0;
enum pci_size_t size = PCI_SIZE_32;
#ifdef CONFIG_DM_PCI
struct udevice *dev, *bus;
#else
pci_dev_t dev;
#endif
int busnum = 0;
pci_dev_t bdf = 0;
char cmd = 's';
int ret = 0;
if (argc > 1)
cmd = argv[1][0];
switch (cmd) {
case 'd': /* display */
case 'n': /* next */
case 'm': /* modify */
case 'w': /* write */
/* Check for a size specification. */
cmd_size = cmd_get_data_size(argv[1], 4);
size = (cmd_size == 4) ? PCI_SIZE_32 : cmd_size - 1;
if (argc > 3)
addr = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
value = simple_strtoul(argv[4], NULL, 16);
case 'h': /* header */
#ifdef CONFIG_DM_PCI
case 'b': /* bars */
#endif
if (argc < 3)
goto usage;
if ((bdf = get_pci_dev(argv[2])) == -1)
return 1;
break;
#if defined(CONFIG_DM_PCI)
case 'e':
pci_init();
return 0;
#endif
case 'r': /* no break */
default: /* scan bus */
value = 1; /* short listing */
if (argc > 1) {
if (cmd != 'r' && argv[argc-1][0] == 'l') {
value = 0;
argc--;
}
if (argc > 1)
busnum = simple_strtoul(argv[1], NULL, 16);
}
#ifdef CONFIG_DM_PCI
ret = uclass_get_device_by_seq(UCLASS_PCI, busnum, &bus);
if (ret) {
printf("No such bus\n");
return CMD_RET_FAILURE;
}
if (cmd == 'r')
pci_show_regions(bus);
else
pciinfo(bus, value);
#else
pciinfo(busnum, value);
#endif
return 0;
}
#ifdef CONFIG_DM_PCI
ret = dm_pci_bus_find_bdf(bdf, &dev);
if (ret) {
printf("No such device\n");
return CMD_RET_FAILURE;
}
#else
dev = bdf;
#endif
switch (argv[1][0]) {
case 'h': /* header */
pci_header_show(dev);
break;
case 'd': /* display */
return pci_cfg_display(dev, addr, size, value);
case 'n': /* next */
if (argc < 4)
goto usage;
ret = pci_cfg_modify(dev, addr, size, value, 0);
break;
case 'm': /* modify */
if (argc < 4)
goto usage;
ret = pci_cfg_modify(dev, addr, size, value, 1);
break;
case 'w': /* write */
if (argc < 5)
goto usage;
#ifdef CONFIG_DM_PCI
ret = dm_pci_write_config(dev, addr, value, size);
#else
ret = pci_cfg_write(dev, addr, size, value);
#endif
break;
#ifdef CONFIG_DM_PCI
case 'b': /* bars */
return pci_bar_show(dev);
#endif
default:
ret = CMD_RET_USAGE;
break;
}
return ret;
usage:
return CMD_RET_USAGE;
}
