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dm: Convert bios_interrupts to use DM PCI API

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Adjust this code to use driver model for devices where possible. Since
existing users have not been converted the old code must remain.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-11-29 13:17:56 -07:00
parent 9bf727fcc4
commit 7d8e4042f1
1 changed files with 23 additions and 13 deletions
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36
arch/x86/lib/bios_interrupts.c
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@ -105,13 +105,15 @@ int int1a_handler(void)
unsigned short func = (unsigned short)M.x86.R_EAX;
int retval = 1;
unsigned short devid, vendorid, devfn;
struct udevice *dev;
/* Use short to get rid of gabage in upper half of 32-bit register */
short devindex;
unsigned char bus;
pci_dev_t dev;
pci_dev_t bdf;
u32 dword;
u16 word;
u8 byte, reg;
int ret;
switch (func) {
case 0xb101: /* PCIBIOS Check */
@ -131,17 +133,20 @@ int int1a_handler(void)
devid = M.x86.R_ECX;
vendorid = M.x86.R_EDX;
devindex = M.x86.R_ESI;
dev = pci_find_device(vendorid, devid, devindex);
if (dev != -1) {
bdf = -1;
ret = dm_pci_find_device(vendorid, devid, devindex, &dev);
if (!ret) {
unsigned short busdevfn;
bdf = dm_pci_get_bdf(dev);
M.x86.R_EAX &= 0xffff00ff; /* Clear AH */
M.x86.R_EAX |= PCIBIOS_SUCCESSFUL;
/*
* busnum is an unsigned char;
* devfn is an int, so we mask it off.
*/
busdevfn = (PCI_BUS(dev) << 8) | PCI_DEV(dev) << 3 |
PCI_FUNC(dev);
busdevfn = (PCI_BUS(bdf) << 8) | PCI_DEV(bdf) << 3 |
PCI_FUNC(bdf);
debug("0x%x: return 0x%x\n", func, busdevfn);
M.x86.R_EBX = busdevfn;
retval = 1;
@ -160,35 +165,40 @@ int int1a_handler(void)
devfn = M.x86.R_EBX & 0xff;
bus = M.x86.R_EBX >> 8;
reg = M.x86.R_EDI;
dev = PCI_BDF(bus, devfn >> 3, devfn & 7);
bdf = PCI_BDF(bus, devfn >> 3, devfn & 7);
ret = dm_pci_bus_find_bdf(bdf, &dev);
if (ret) {
debug("%s: Device %x not found\n", __func__, bdf);
break;
}
switch (func) {
case 0xb108: /* Read Config Byte */
byte = x86_pci_read_config8(dev, reg);
dm_pci_read_config8(dev, reg, &byte);
M.x86.R_ECX = byte;
break;
case 0xb109: /* Read Config Word */
word = x86_pci_read_config16(dev, reg);
dm_pci_read_config16(dev, reg, &word);
M.x86.R_ECX = word;
break;
case 0xb10a: /* Read Config Dword */
dword = x86_pci_read_config32(dev, reg);
dm_pci_read_config32(dev, reg, &dword);
M.x86.R_ECX = dword;
break;
case 0xb10b: /* Write Config Byte */
byte = M.x86.R_ECX;
x86_pci_write_config8(dev, reg, byte);
dm_pci_write_config8(dev, reg, byte);
break;
case 0xb10c: /* Write Config Word */
word = M.x86.R_ECX;
x86_pci_write_config16(dev, reg, word);
dm_pci_write_config16(dev, reg, word);
break;
case 0xb10d: /* Write Config Dword */
dword = M.x86.R_ECX;
x86_pci_write_config32(dev, reg, dword);
dm_pci_write_config32(dev, reg, dword);
break;
}
#ifdef CONFIG_REALMODE_DEBUG
debug("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n", func,
bus, devfn, reg, M.x86.R_ECX);