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path: root/drivers/pnp/pnpacpi/rsparser.c
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Diffstat (limited to 'drivers/pnp/pnpacpi/rsparser.c')
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c160
1 files changed, 61 insertions, 99 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 2f0d66886404..ce5027feb3da 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -71,9 +71,9 @@ static void decode_irq_flags(int flag, int *triggering, int *polarity)
}
}
-static void
-pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, u32 gsi,
- int triggering, int polarity, int shareable)
+static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
+ u32 gsi, int triggering,
+ int polarity, int shareable)
{
int i = 0;
int irq;
@@ -146,11 +146,12 @@ static int dma_flags(int type, int bus_master, int transfer)
return flags;
}
-static void
-pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res, u32 dma,
- int type, int bus_master, int transfer)
+static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
+ u32 dma, int type,
+ int bus_master, int transfer)
{
int i = 0;
+
while (i < PNP_MAX_DMA &&
!(res->dma_resource[i].flags & IORESOURCE_UNSET))
i++;
@@ -167,11 +168,11 @@ pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res, u32 dma,
}
}
-static void
-pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
- u64 io, u64 len, int io_decode)
+static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
+ u64 io, u64 len, int io_decode)
{
int i = 0;
+
while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
i < PNP_MAX_PORT)
i++;
@@ -188,11 +189,12 @@ pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
}
}
-static void
-pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
- u64 mem, u64 len, int write_protect)
+static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
+ u64 mem, u64 len,
+ int write_protect)
{
int i = 0;
+
while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
(i < PNP_MAX_MEM))
i++;
@@ -210,9 +212,8 @@ pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
}
}
-static void
-pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
- struct acpi_resource *res)
+static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
+ struct acpi_resource *res)
{
struct acpi_resource_address64 addr, *p = &addr;
acpi_status status;
@@ -229,16 +230,13 @@ pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(res_table,
- p->minimum,
- p->address_length,
- p->info.mem.write_protect);
+ p->minimum, p->address_length,
+ p->info.mem.write_protect);
else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(res_table,
- p->minimum,
- p->address_length,
- p->granularity ==
- 0xfff ? ACPI_DECODE_10 :
- ACPI_DECODE_16);
+ p->minimum, p->address_length,
+ p->granularity == 0xfff ? ACPI_DECODE_10 :
+ ACPI_DECODE_16);
}
static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
@@ -256,34 +254,27 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
*/
for (i = 0; i < res->data.irq.interrupt_count; i++) {
pnpacpi_parse_allocated_irqresource(res_table,
- res->data.irq.
- interrupts[i],
- res->data.irq.
- triggering,
- res->data.irq.
- polarity,
- res->data.irq.
- sharable);
+ res->data.irq.interrupts[i],
+ res->data.irq.triggering,
+ res->data.irq.polarity,
+ res->data.irq.sharable);
}
break;
case ACPI_RESOURCE_TYPE_DMA:
if (res->data.dma.channel_count > 0)
pnpacpi_parse_allocated_dmaresource(res_table,
- res->data.dma.
- channels[0],
- res->data.dma.type,
- res->data.dma.
- bus_master,
- res->data.dma.
- transfer);
+ res->data.dma.channels[0],
+ res->data.dma.type,
+ res->data.dma.bus_master,
+ res->data.dma.transfer);
break;
case ACPI_RESOURCE_TYPE_IO:
pnpacpi_parse_allocated_ioresource(res_table,
- res->data.io.minimum,
- res->data.io.address_length,
- res->data.io.io_decode);
+ res->data.io.minimum,
+ res->data.io.address_length,
+ res->data.io.io_decode);
break;
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
@@ -292,10 +283,9 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
case ACPI_RESOURCE_TYPE_FIXED_IO:
pnpacpi_parse_allocated_ioresource(res_table,
- res->data.fixed_io.address,
- res->data.fixed_io.
- address_length,
- ACPI_DECODE_10);
+ res->data.fixed_io.address,
+ res->data.fixed_io.address_length,
+ ACPI_DECODE_10);
break;
case ACPI_RESOURCE_TYPE_VENDOR:
@@ -306,28 +296,21 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
case ACPI_RESOURCE_TYPE_MEMORY24:
pnpacpi_parse_allocated_memresource(res_table,
- res->data.memory24.minimum,
- res->data.memory24.
- address_length,
- res->data.memory24.
- write_protect);
+ res->data.memory24.minimum,
+ res->data.memory24.address_length,
+ res->data.memory24.write_protect);
break;
case ACPI_RESOURCE_TYPE_MEMORY32:
pnpacpi_parse_allocated_memresource(res_table,
- res->data.memory32.minimum,
- res->data.memory32.
- address_length,
- res->data.memory32.
- write_protect);
+ res->data.memory32.minimum,
+ res->data.memory32.address_length,
+ res->data.memory32.write_protect);
break;
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
pnpacpi_parse_allocated_memresource(res_table,
- res->data.fixed_memory32.
- address,
- res->data.fixed_memory32.
- address_length,
- res->data.fixed_memory32.
- write_protect);
+ res->data.fixed_memory32.address,
+ res->data.fixed_memory32.address_length,
+ res->data.fixed_memory32.write_protect);
break;
case ACPI_RESOURCE_TYPE_ADDRESS16:
case ACPI_RESOURCE_TYPE_ADDRESS32:
@@ -346,18 +329,10 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
pnpacpi_parse_allocated_irqresource(res_table,
- res->data.
- extended_irq.
- interrupts[i],
- res->data.
- extended_irq.
- triggering,
- res->data.
- extended_irq.
- polarity,
- res->data.
- extended_irq.
- sharable);
+ res->data.extended_irq.interrupts[i],
+ res->data.extended_irq.triggering,
+ res->data.extended_irq.polarity,
+ res->data.extended_irq.sharable);
}
break;
@@ -400,7 +375,6 @@ static void pnpacpi_parse_dma_option(struct pnp_option *option,
dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
pnp_register_dma_resource(option, dma);
- return;
}
static void pnpacpi_parse_irq_option(struct pnp_option *option,
@@ -421,7 +395,6 @@ static void pnpacpi_parse_irq_option(struct pnp_option *option,
irq->flags = irq_flags(p->triggering, p->polarity);
pnp_register_irq_resource(option, irq);
- return;
}
static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
@@ -442,12 +415,10 @@ static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
irq->flags = irq_flags(p->triggering, p->polarity);
pnp_register_irq_resource(option, irq);
- return;
}
-static void
-pnpacpi_parse_port_option(struct pnp_option *option,
- struct acpi_resource_io *io)
+static void pnpacpi_parse_port_option(struct pnp_option *option,
+ struct acpi_resource_io *io)
{
struct pnp_port *port;
@@ -463,12 +434,10 @@ pnpacpi_parse_port_option(struct pnp_option *option,
port->flags = ACPI_DECODE_16 == io->io_decode ?
PNP_PORT_FLAG_16BITADDR : 0;
pnp_register_port_resource(option, port);
- return;
}
-static void
-pnpacpi_parse_fixed_port_option(struct pnp_option *option,
- struct acpi_resource_fixed_io *io)
+static void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
+ struct acpi_resource_fixed_io *io)
{
struct pnp_port *port;
@@ -482,12 +451,10 @@ pnpacpi_parse_fixed_port_option(struct pnp_option *option,
port->align = 0;
port->flags = PNP_PORT_FLAG_FIXED;
pnp_register_port_resource(option, port);
- return;
}
-static void
-pnpacpi_parse_mem24_option(struct pnp_option *option,
- struct acpi_resource_memory24 *p)
+static void pnpacpi_parse_mem24_option(struct pnp_option *option,
+ struct acpi_resource_memory24 *p)
{
struct pnp_mem *mem;
@@ -505,12 +472,10 @@ pnpacpi_parse_mem24_option(struct pnp_option *option,
IORESOURCE_MEM_WRITEABLE : 0;
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpacpi_parse_mem32_option(struct pnp_option *option,
- struct acpi_resource_memory32 *p)
+static void pnpacpi_parse_mem32_option(struct pnp_option *option,
+ struct acpi_resource_memory32 *p)
{
struct pnp_mem *mem;
@@ -528,12 +493,10 @@ pnpacpi_parse_mem32_option(struct pnp_option *option,
IORESOURCE_MEM_WRITEABLE : 0;
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
- struct acpi_resource_fixed_memory32 *p)
+static void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
+ struct acpi_resource_fixed_memory32 *p)
{
struct pnp_mem *mem;
@@ -550,11 +513,10 @@ pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
IORESOURCE_MEM_WRITEABLE : 0;
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpacpi_parse_address_option(struct pnp_option *option, struct acpi_resource *r)
+static void pnpacpi_parse_address_option(struct pnp_option *option,
+ struct acpi_resource *r)
{
struct acpi_resource_address64 addr, *p = &addr;
acpi_status status;
@@ -635,7 +597,7 @@ static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
priority = PNP_RES_PRIORITY_INVALID;
break;
}
- /* TBD: Considering performace/robustness bits */
+ /* TBD: Consider performance/robustness bits */
option = pnp_register_dependent_option(dev, priority);
if (!option)
return AE_ERROR;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.