diff options
Diffstat (limited to 'drivers/pnp')
| -rw-r--r-- | drivers/pnp/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 75 |
3 files changed, 45 insertions, 34 deletions
diff --git a/drivers/pnp/Kconfig b/drivers/pnp/Kconfig index 6776308a1fe..c5143201419 100644 --- a/drivers/pnp/Kconfig +++ b/drivers/pnp/Kconfig @@ -6,7 +6,7 @@ menu "Plug and Play support" config PNP bool "Plug and Play support" - depends on ISA || ACPI_BUS + depends on ISA || ACPI ---help--- Plug and Play (PnP) is a standard for peripherals which allows those peripherals to be configured by software, e.g. assign IRQ's or other diff --git a/drivers/pnp/pnpacpi/Kconfig b/drivers/pnp/pnpacpi/Kconfig index 0782cdc5009..b1854171b96 100644 --- a/drivers/pnp/pnpacpi/Kconfig +++ b/drivers/pnp/pnpacpi/Kconfig @@ -3,7 +3,7 @@ # config PNPACPI bool "Plug and Play ACPI support (EXPERIMENTAL)" - depends on PNP && ACPI_BUS && EXPERIMENTAL + depends on PNP && ACPI && EXPERIMENTAL default y ---help--- Linux uses the PNPACPI to autodetect built-in diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 675b76a4240..416d30debe6 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -73,25 +73,35 @@ static void decode_irq_flags(int flag, int *edge_level, int *active_high_low) } static void -pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq) +pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, u32 gsi, + int edge_level, int active_high_low) { int i = 0; + int irq; + + if (!valid_IRQ(gsi)) + return; + while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) && i < PNP_MAX_IRQ) i++; - if (i < PNP_MAX_IRQ) { - res->irq_resource[i].flags = IORESOURCE_IRQ; //Also clears _UNSET flag - if (irq == -1) { - res->irq_resource[i].flags |= IORESOURCE_DISABLED; - return; - } - res->irq_resource[i].start =(unsigned long) irq; - res->irq_resource[i].end = (unsigned long) irq; + if (i >= PNP_MAX_IRQ) + return; + + res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag + irq = acpi_register_gsi(gsi, edge_level, active_high_low); + if (irq < 0) { + res->irq_resource[i].flags |= IORESOURCE_DISABLED; + return; } + + res->irq_resource[i].start = irq; + res->irq_resource[i].end = irq; + pcibios_penalize_isa_irq(irq, 1); } static void -pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma) +pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, u32 dma) { int i = 0; while (i < PNP_MAX_DMA && @@ -103,14 +113,14 @@ pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma) res->dma_resource[i].flags |= IORESOURCE_DISABLED; return; } - res->dma_resource[i].start =(unsigned long) dma; - res->dma_resource[i].end = (unsigned long) dma; + res->dma_resource[i].start = dma; + res->dma_resource[i].end = dma; } } static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res, - int io, int len) + u32 io, u32 len) { int i = 0; while (!(res->port_resource[i].flags & IORESOURCE_UNSET) && @@ -122,14 +132,14 @@ pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res, res->port_resource[i].flags |= IORESOURCE_DISABLED; return; } - res->port_resource[i].start = (unsigned long) io; - res->port_resource[i].end = (unsigned long)(io + len - 1); + res->port_resource[i].start = io; + res->port_resource[i].end = io + len - 1; } } static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res, - int mem, int len) + u64 mem, u64 len) { int i = 0; while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) && @@ -141,8 +151,8 @@ pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res, res->mem_resource[i].flags |= IORESOURCE_DISABLED; return; } - res->mem_resource[i].start = (unsigned long) mem; - res->mem_resource[i].end = (unsigned long)(mem + len - 1); + res->mem_resource[i].start = mem; + res->mem_resource[i].end = mem + len - 1; } } @@ -151,27 +161,28 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, void *data) { struct pnp_resource_table * res_table = (struct pnp_resource_table *)data; + int i; switch (res->id) { case ACPI_RSTYPE_IRQ: - if ((res->data.irq.number_of_interrupts > 0) && - valid_IRQ(res->data.irq.interrupts[0])) { - pnpacpi_parse_allocated_irqresource(res_table, - acpi_register_gsi(res->data.irq.interrupts[0], - res->data.irq.edge_level, - res->data.irq.active_high_low)); - pcibios_penalize_isa_irq(res->data.irq.interrupts[0], 1); + /* + * Per spec, only one interrupt per descriptor is allowed in + * _CRS, but some firmware violates this, so parse them all. + */ + for (i = 0; i < res->data.irq.number_of_interrupts; i++) { + pnpacpi_parse_allocated_irqresource(res_table, + res->data.irq.interrupts[i], + res->data.irq.edge_level, + res->data.irq.active_high_low); } break; case ACPI_RSTYPE_EXT_IRQ: - if ((res->data.extended_irq.number_of_interrupts > 0) && - valid_IRQ(res->data.extended_irq.interrupts[0])) { - pnpacpi_parse_allocated_irqresource(res_table, - acpi_register_gsi(res->data.extended_irq.interrupts[0], - res->data.extended_irq.edge_level, - res->data.extended_irq.active_high_low)); - pcibios_penalize_isa_irq(res->data.extended_irq.interrupts[0], 1); + for (i = 0; i < res->data.extended_irq.number_of_interrupts; i++) { + pnpacpi_parse_allocated_irqresource(res_table, + res->data.extended_irq.interrupts[i], + res->data.extended_irq.edge_level, + res->data.extended_irq.active_high_low); } break; case ACPI_RSTYPE_DMA: |