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Create PCI properties "interrupts", "interrupt-map" and "interrupt-map-mask" (Laurent Vivier)

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git-svn-id: svn://coreboot.org/openbios/openbios-devel@363 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
2009-01-07 15:45:26 +00:00
parent 2742ea5723
commit 8a4aadc9b8
5 changed files with 93 additions and 16 deletions
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76
drivers/pci.c
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@@ -195,6 +195,52 @@ int eth_config_cb (const pci_config_t *config)
return 0;
}
static void pci_set_interrupt_map(const pci_config_t *config)
{
phandle_t parent, dev;
cell props[4];
cell *old_props, *new_props;
int ncells;
int retlen;
if (config->irq_line != -1) {
dev = get_cur_dev();
activate_device(config->path);
activate_device("..");
parent = get_cur_dev();
ncells = 0;
if (get_property(parent, "interrupt-map-mask", NULL) == 0) {
props[ncells++] = 0xF800;
props[ncells++] = 0;
props[ncells++] = 0;
props[ncells++] = 0;
set_property(parent, "interrupt-map-mask",
(char*)props, ncells * sizeof(cell));
}
old_props = (cell*)get_property(parent, "interrupt-map", &retlen);
if (old_props) {
new_props = malloc(retlen + 6 * 4);
memcpy(new_props, old_props, retlen);
} else {
retlen = 0;
new_props = malloc(6 * 4);
}
ncells = retlen / 4;
new_props[ncells++] = config->dev & 0xf800; /* devfn */
new_props[ncells++] = 0;
new_props[ncells++] = 0;
new_props[ncells++] = 0;
new_props[ncells++] = 0;
new_props[ncells++] = config->irq_line;
set_property(parent, "interrupt-map",
(char*)new_props, ncells * sizeof(cell));
free(new_props);
activate_dev(dev);
}
}
int macio_config_cb (const pci_config_t *config)
{
#ifdef CONFIG_DRIVER_MACIO
@@ -232,8 +278,8 @@ static void ob_pci_add_properties(pci_addr addr, const pci_dev_t *pci_dev,
set_int_property(dev, "revision-id", rev);
set_int_property(dev, "class-code", class_code << 8);
set_int_property(dev, "interrupts",
pci_config_read8(addr, PCI_INTERRUPT_LINE));
if (config->irq_pin)
set_int_property(dev, "interrupts", config->irq_pin);
set_int_property(dev, "min-grant", pci_config_read8(addr, PCI_MIN_GNT));
set_int_property(dev, "max-latency", pci_config_read8(addr, PCI_MAX_LAT));
@@ -275,11 +321,24 @@ static void ob_pci_add_properties(pci_addr addr, const pci_dev_t *pci_dev,
if (pci_dev->compat)
set_property(dev, "compatible",
pci_dev->compat, pci_compat_len(pci_dev));
pci_set_interrupt_map(config);
if (pci_dev->acells)
set_int_property(dev, "#address-cells", pci_dev->acells);
if (pci_dev->scells)
set_int_property(dev, "#size-cells", pci_dev->scells);
if (pci_dev->icells)
set_int_property(dev, "#interrupt-cells", pci_dev->icells);
#ifdef CONFIG_DEBUG_PCI
printk("\n");
#endif
if (pci_dev->config_cb)
pci_dev->config_cb(config);
}
static void ob_pci_add_reg(pci_addr addr)
{
PUSH(0);
@@ -342,6 +401,17 @@ ob_pci_configure(pci_addr addr, pci_config_t *config, unsigned long *mem_base,
unsigned long base;
pci_addr config_addr;
int reg;
uint8_t irq_pin, irq_line;
irq_pin = pci_config_read8(addr, PCI_INTERRUPT_PIN);
if (irq_pin) {
config->irq_pin = irq_pin;
irq_pin = (((config->dev >> 11) & 0x1F) + irq_pin - 1) & 3;
irq_line = arch->irqs[irq_pin];
pci_config_write8(addr, PCI_INTERRUPT_LINE, irq_line);
config->irq_line = irq_line;
} else
config->irq_line = -1;
omask = 0x00000000;
for (reg = 0; reg < 7; reg++) {