diff options
Diffstat (limited to 'drivers/pnp/pnpacpi/rsparser.c')
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 821 |
1 files changed, 821 insertions, 0 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c new file mode 100644 index 000000000000..c0ddb1eb8c4d --- /dev/null +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -0,0 +1,821 @@ +/* + * pnpacpi -- PnP ACPI driver + * + * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr> + * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/acpi.h> +#include <linux/pci.h> +#include "pnpacpi.h" + +#ifdef CONFIG_IA64 +#define valid_IRQ(i) (1) +#else +#define valid_IRQ(i) (((i) != 0) && ((i) != 2)) +#endif + +/* + * Allocated Resources + */ +static int irq_flags(int edge_level, int active_high_low) +{ + int flag; + if (edge_level == ACPI_LEVEL_SENSITIVE) { + if(active_high_low == ACPI_ACTIVE_LOW) + flag = IORESOURCE_IRQ_LOWLEVEL; + else + flag = IORESOURCE_IRQ_HIGHLEVEL; + } + else { + if(active_high_low == ACPI_ACTIVE_LOW) + flag = IORESOURCE_IRQ_LOWEDGE; + else + flag = IORESOURCE_IRQ_HIGHEDGE; + } + return flag; +} + +static void decode_irq_flags(int flag, int *edge_level, int *active_high_low) +{ + switch (flag) { + case IORESOURCE_IRQ_LOWLEVEL: + *edge_level = ACPI_LEVEL_SENSITIVE; + *active_high_low = ACPI_ACTIVE_LOW; + break; + case IORESOURCE_IRQ_HIGHLEVEL: + *edge_level = ACPI_LEVEL_SENSITIVE; + *active_high_low = ACPI_ACTIVE_HIGH; + break; + case IORESOURCE_IRQ_LOWEDGE: + *edge_level = ACPI_EDGE_SENSITIVE; + *active_high_low = ACPI_ACTIVE_LOW; + break; + case IORESOURCE_IRQ_HIGHEDGE: + *edge_level = ACPI_EDGE_SENSITIVE; + *active_high_low = ACPI_ACTIVE_HIGH; + break; + } +} + +static void +pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq) +{ + int i = 0; + 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; + } +} + +static void +pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma) +{ + int i = 0; + while (!(res->dma_resource[i].flags & IORESOURCE_UNSET) && + i < PNP_MAX_DMA) + i++; + if (i < PNP_MAX_DMA) { + res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag + if (dma == -1) { + res->dma_resource[i].flags |= IORESOURCE_DISABLED; + return; + } + res->dma_resource[i].start =(unsigned long) dma; + res->dma_resource[i].end = (unsigned long) dma; + } +} + +static void +pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res, + int io, int len) +{ + int i = 0; + while (!(res->port_resource[i].flags & IORESOURCE_UNSET) && + i < PNP_MAX_PORT) + i++; + if (i < PNP_MAX_PORT) { + res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag + if (len <= 0 || (io + len -1) >= 0x10003) { + 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); + } +} + +static void +pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res, + int mem, int len) +{ + int i = 0; + while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) && + (i < PNP_MAX_MEM)) + i++; + if (i < PNP_MAX_MEM) { + res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag + if (len <= 0) { + 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); + } +} + + +static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, + void *data) +{ + struct pnp_resource_table * res_table = (struct pnp_resource_table *)data; + + 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]); + } + 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]); + } + break; + case ACPI_RSTYPE_DMA: + if (res->data.dma.number_of_channels > 0) + pnpacpi_parse_allocated_dmaresource(res_table, + res->data.dma.channels[0]); + break; + case ACPI_RSTYPE_IO: + pnpacpi_parse_allocated_ioresource(res_table, + res->data.io.min_base_address, + res->data.io.range_length); + break; + case ACPI_RSTYPE_FIXED_IO: + pnpacpi_parse_allocated_ioresource(res_table, + res->data.fixed_io.base_address, + res->data.fixed_io.range_length); + break; + case ACPI_RSTYPE_MEM24: + pnpacpi_parse_allocated_memresource(res_table, + res->data.memory24.min_base_address, + res->data.memory24.range_length); + break; + case ACPI_RSTYPE_MEM32: + pnpacpi_parse_allocated_memresource(res_table, + res->data.memory32.min_base_address, + res->data.memory32.range_length); + break; + case ACPI_RSTYPE_FIXED_MEM32: + pnpacpi_parse_allocated_memresource(res_table, + res->data.fixed_memory32.range_base_address, + res->data.fixed_memory32.range_length); + break; + case ACPI_RSTYPE_ADDRESS16: + pnpacpi_parse_allocated_memresource(res_table, + res->data.address16.min_address_range, + res->data.address16.address_length); + break; + case ACPI_RSTYPE_ADDRESS32: + pnpacpi_parse_allocated_memresource(res_table, + res->data.address32.min_address_range, + res->data.address32.address_length); + break; + case ACPI_RSTYPE_ADDRESS64: + pnpacpi_parse_allocated_memresource(res_table, + res->data.address64.min_address_range, + res->data.address64.address_length); + break; + case ACPI_RSTYPE_VENDOR: + break; + default: + pnp_warn("PnPACPI: unknown resource type %d", res->id); + return AE_ERROR; + } + + return AE_OK; +} + +acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res) +{ + /* Blank the resource table values */ + pnp_init_resource_table(res); + + return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res); +} + +static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p) +{ + int i; + struct pnp_dma * dma; + + if (p->number_of_channels == 0) + return; + dma = pnpacpi_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL); + if (!dma) + return; + + for(i = 0; i < p->number_of_channels; i++) + dma->map |= 1 << p->channels[i]; + dma->flags = 0; + if (p->bus_master) + dma->flags |= IORESOURCE_DMA_MASTER; + switch (p->type) { + case ACPI_COMPATIBILITY: + dma->flags |= IORESOURCE_DMA_COMPATIBLE; + break; + case ACPI_TYPE_A: + dma->flags |= IORESOURCE_DMA_TYPEA; + break; + case ACPI_TYPE_B: + dma->flags |= IORESOURCE_DMA_TYPEB; + break; + case ACPI_TYPE_F: + dma->flags |= IORESOURCE_DMA_TYPEF; + break; + default: + /* Set a default value ? */ + dma->flags |= IORESOURCE_DMA_COMPATIBLE; + pnp_err("Invalid DMA type"); + } + switch (p->transfer) { + case ACPI_TRANSFER_8: + dma->flags |= IORESOURCE_DMA_8BIT; + break; + case ACPI_TRANSFER_8_16: + dma->flags |= IORESOURCE_DMA_8AND16BIT; + break; + case ACPI_TRANSFER_16: + dma->flags |= IORESOURCE_DMA_16BIT; + break; + default: + /* Set a default value ? */ + dma->flags |= IORESOURCE_DMA_8AND16BIT; + pnp_err("Invalid DMA transfer type"); + } + + pnp_register_dma_resource(option,dma); + return; +} + + +static void pnpacpi_parse_irq_option(struct pnp_option *option, + struct acpi_resource_irq *p) +{ + int i; + struct pnp_irq * irq; + + if (p->number_of_interrupts == 0) + return; + irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL); + if (!irq) + return; + + for(i = 0; i < p->number_of_interrupts; i++) + if (p->interrupts[i]) + __set_bit(p->interrupts[i], irq->map); + irq->flags = irq_flags(p->edge_level, p->active_high_low); + + pnp_register_irq_resource(option, irq); + return; +} + +static void pnpacpi_parse_ext_irq_option(struct pnp_option *option, + struct acpi_resource_ext_irq *p) +{ + int i; + struct pnp_irq * irq; + + if (p->number_of_interrupts == 0) + return; + irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL); + if (!irq) + return; + + for(i = 0; i < p->number_of_interrupts; i++) + if (p->interrupts[i]) + __set_bit(p->interrupts[i], irq->map); + irq->flags = irq_flags(p->edge_level, p->active_high_low); + + pnp_register_irq_resource(option, irq); + return; +} + +static void +pnpacpi_parse_port_option(struct pnp_option *option, + struct acpi_resource_io *io) +{ + struct pnp_port * port; + + if (io->range_length == 0) + return; + port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL); + if (!port) + return; + port->min = io->min_base_address; + port->max = io->max_base_address; + port->align = io->alignment; + port->size = io->range_length; + 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) +{ + struct pnp_port * port; + + if (io->range_length == 0) + return; + port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL); + if (!port) + return; + port->min = port->max = io->base_address; + port->size = io->range_length; + 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_mem24 *p) +{ + struct pnp_mem * mem; + + if (p->range_length == 0) + return; + mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); + if (!mem) + return; + mem->min = p->min_base_address; + mem->max = p->max_base_address; + mem->align = p->alignment; + mem->size = p->range_length; + + mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? + IORESOURCE_MEM_WRITEABLE : 0; + + pnp_register_mem_resource(option,mem); + return; +} + +static void +pnpacpi_parse_mem32_option(struct pnp_option *option, + struct acpi_resource_mem32 *p) +{ + struct pnp_mem * mem; + + if (p->range_length == 0) + return; + mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); + if (!mem) + return; + mem->min = p->min_base_address; + mem->max = p->max_base_address; + mem->align = p->alignment; + mem->size = p->range_length; + + mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? + 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_mem32 *p) +{ + struct pnp_mem * mem; + + if (p->range_length == 0) + return; + mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); + if (!mem) + return; + mem->min = mem->max = p->range_base_address; + mem->size = p->range_length; + mem->align = 0; + + mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? + IORESOURCE_MEM_WRITEABLE : 0; + + pnp_register_mem_resource(option,mem); + return; +} + +struct acpipnp_parse_option_s { + struct pnp_option *option; + struct pnp_dev *dev; +}; + +static acpi_status pnpacpi_option_resource(struct acpi_resource *res, + void *data) +{ + int priority = 0; + struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data; + struct pnp_dev *dev = parse_data->dev; + struct pnp_option *option = parse_data->option; + + switch (res->id) { + case ACPI_RSTYPE_IRQ: + pnpacpi_parse_irq_option(option, &res->data.irq); + break; + case ACPI_RSTYPE_EXT_IRQ: + pnpacpi_parse_ext_irq_option(option, + &res->data.extended_irq); + break; + case ACPI_RSTYPE_DMA: + pnpacpi_parse_dma_option(option, &res->data.dma); + break; + case ACPI_RSTYPE_IO: + pnpacpi_parse_port_option(option, &res->data.io); + break; + case ACPI_RSTYPE_FIXED_IO: + pnpacpi_parse_fixed_port_option(option, + &res->data.fixed_io); + break; + case ACPI_RSTYPE_MEM24: + pnpacpi_parse_mem24_option(option, &res->data.memory24); + break; + case ACPI_RSTYPE_MEM32: + pnpacpi_parse_mem32_option(option, &res->data.memory32); + break; + case ACPI_RSTYPE_FIXED_MEM32: + pnpacpi_parse_fixed_mem32_option(option, + &res->data.fixed_memory32); + break; + case ACPI_RSTYPE_START_DPF: + switch (res->data.start_dpf.compatibility_priority) { + case ACPI_GOOD_CONFIGURATION: + priority = PNP_RES_PRIORITY_PREFERRED; + break; + + case ACPI_ACCEPTABLE_CONFIGURATION: + priority = PNP_RES_PRIORITY_ACCEPTABLE; + break; + + case ACPI_SUB_OPTIMAL_CONFIGURATION: + priority = PNP_RES_PRIORITY_FUNCTIONAL; + break; + default: + priority = PNP_RES_PRIORITY_INVALID; + break; + } + /* TBD: Considering performace/robustness bits */ + option = pnp_register_dependent_option(dev, priority); + if (!option) + return AE_ERROR; + parse_data->option = option; + break; + case ACPI_RSTYPE_END_DPF: + return AE_CTRL_TERMINATE; + default: + pnp_warn("PnPACPI: unknown resource type %d", res->id); + return AE_ERROR; + } + + return AE_OK; +} + +acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle, + struct pnp_dev *dev) +{ + acpi_status status; + struct acpipnp_parse_option_s parse_data; + + parse_data.option = pnp_register_independent_option(dev); + if (!parse_data.option) + return AE_ERROR; + parse_data.dev = dev; + status = acpi_walk_resources(handle, METHOD_NAME__PRS, + pnpacpi_option_resource, &parse_data); + + return status; +} + +/* + * Set resource + */ +static acpi_status pnpacpi_count_resources(struct acpi_resource *res, + void *data) +{ + int *res_cnt = (int *)data; + switch (res->id) { + case ACPI_RSTYPE_IRQ: + case ACPI_RSTYPE_EXT_IRQ: + case ACPI_RSTYPE_DMA: + case ACPI_RSTYPE_IO: + case ACPI_RSTYPE_FIXED_IO: + case ACPI_RSTYPE_MEM24: + case ACPI_RSTYPE_MEM32: + case ACPI_RSTYPE_FIXED_MEM32: +#if 0 + case ACPI_RSTYPE_ADDRESS16: + case ACPI_RSTYPE_ADDRESS32: + case ACPI_RSTYPE_ADDRESS64: +#endif + (*res_cnt) ++; + default: + return AE_OK; + } + return AE_OK; +} + +static acpi_status pnpacpi_type_resources(struct acpi_resource *res, + void *data) +{ + struct acpi_resource **resource = (struct acpi_resource **)data; + switch (res->id) { + case ACPI_RSTYPE_IRQ: + case ACPI_RSTYPE_EXT_IRQ: + case ACPI_RSTYPE_DMA: + case ACPI_RSTYPE_IO: + case ACPI_RSTYPE_FIXED_IO: + case ACPI_RSTYPE_MEM24: + case ACPI_RSTYPE_MEM32: + case ACPI_RSTYPE_FIXED_MEM32: +#if 0 + case ACPI_RSTYPE_ADDRESS16: + case ACPI_RSTYPE_ADDRESS32: + case ACPI_RSTYPE_ADDRESS64: +#endif + (*resource)->id = res->id; + (*resource)++; + default: + return AE_OK; + } + + return AE_OK; +} + +int pnpacpi_build_resource_template(acpi_handle handle, + struct acpi_buffer *buffer) +{ + struct acpi_resource *resource; + int res_cnt = 0; + acpi_status status; + + status = acpi_walk_resources(handle, METHOD_NAME__CRS, + pnpacpi_count_resources, &res_cnt); + if (ACPI_FAILURE(status)) { + pnp_err("Evaluate _CRS failed"); + return -EINVAL; + } + if (!res_cnt) + return -EINVAL; + buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1; + buffer->pointer = pnpacpi_kmalloc(buffer->length - 1, GFP_KERNEL); + if (!buffer->pointer) + return -ENOMEM; + pnp_dbg("Res cnt %d", res_cnt); + resource = (struct acpi_resource *)buffer->pointer; + status = acpi_walk_resources(handle, METHOD_NAME__CRS, + pnpacpi_type_resources, &resource); + if (ACPI_FAILURE(status)) { + kfree(buffer->pointer); + pnp_err("Evaluate _CRS failed"); + return -EINVAL; + } + /* resource will pointer the end resource now */ + resource->id = ACPI_RSTYPE_END_TAG; + + return 0; +} + +static void pnpacpi_encode_irq(struct acpi_resource *resource, + struct resource *p) +{ + int edge_level, active_high_low; + + decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, + &active_high_low); + resource->id = ACPI_RSTYPE_IRQ; + resource->length = sizeof(struct acpi_resource); + resource->data.irq.edge_level = edge_level; + resource->data.irq.active_high_low = active_high_low; + if (edge_level == ACPI_EDGE_SENSITIVE) + resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE; + else + resource->data.irq.shared_exclusive = ACPI_SHARED; + resource->data.irq.number_of_interrupts = 1; + resource->data.irq.interrupts[0] = p->start; +} + +static void pnpacpi_encode_ext_irq(struct acpi_resource *resource, + struct resource *p) +{ + int edge_level, active_high_low; + + decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, + &active_high_low); + resource->id = ACPI_RSTYPE_EXT_IRQ; + resource->length = sizeof(struct acpi_resource); + resource->data.extended_irq.producer_consumer = ACPI_CONSUMER; + resource->data.extended_irq.edge_level = edge_level; + resource->data.extended_irq.active_high_low = active_high_low; + if (edge_level == ACPI_EDGE_SENSITIVE) + resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE; + else + resource->data.irq.shared_exclusive = ACPI_SHARED; + resource->data.extended_irq.number_of_interrupts = 1; + resource->data.extended_irq.interrupts[0] = p->start; +} + +static void pnpacpi_encode_dma(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_DMA; + resource->length = sizeof(struct acpi_resource); + /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */ + if (p->flags & IORESOURCE_DMA_COMPATIBLE) + resource->data.dma.type = ACPI_COMPATIBILITY; + else if (p->flags & IORESOURCE_DMA_TYPEA) + resource->data.dma.type = ACPI_TYPE_A; + else if (p->flags & IORESOURCE_DMA_TYPEB) + resource->data.dma.type = ACPI_TYPE_B; + else if (p->flags & IORESOURCE_DMA_TYPEF) + resource->data.dma.type = ACPI_TYPE_F; + if (p->flags & IORESOURCE_DMA_8BIT) + resource->data.dma.transfer = ACPI_TRANSFER_8; + else if (p->flags & IORESOURCE_DMA_8AND16BIT) + resource->data.dma.transfer = ACPI_TRANSFER_8_16; + else if (p->flags & IORESOURCE_DMA_16BIT) + resource->data.dma.transfer = ACPI_TRANSFER_16; + resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER; + resource->data.dma.number_of_channels = 1; + resource->data.dma.channels[0] = p->start; +} + +static void pnpacpi_encode_io(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_IO; + resource->length = sizeof(struct acpi_resource); + /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */ + resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)? + ACPI_DECODE_16 : ACPI_DECODE_10; + resource->data.io.min_base_address = p->start; + resource->data.io.max_base_address = p->end; + resource->data.io.alignment = 0; /* Correct? */ + resource->data.io.range_length = p->end - p->start + 1; +} + +static void pnpacpi_encode_fixed_io(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_FIXED_IO; + resource->length = sizeof(struct acpi_resource); + resource->data.fixed_io.base_address = p->start; + resource->data.fixed_io.range_length = p->end - p->start + 1; +} + +static void pnpacpi_encode_mem24(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_MEM24; + resource->length = sizeof(struct acpi_resource); + /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */ + resource->data.memory24.read_write_attribute = + (p->flags & IORESOURCE_MEM_WRITEABLE) ? + ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; + resource->data.memory24.min_base_address = p->start; + resource->data.memory24.max_base_address = p->end; + resource->data.memory24.alignment = 0; + resource->data.memory24.range_length = p->end - p->start + 1; +} + +static void pnpacpi_encode_mem32(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_MEM32; + resource->length = sizeof(struct acpi_resource); + resource->data.memory32.read_write_attribute = + (p->flags & IORESOURCE_MEM_WRITEABLE) ? + ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; + resource->data.memory32.min_base_address = p->start; + resource->data.memory32.max_base_address = p->end; + resource->data.memory32.alignment = 0; + resource->data.memory32.range_length = p->end - p->start + 1; +} + +static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource, + struct resource *p) +{ + resource->id = ACPI_RSTYPE_FIXED_MEM32; + resource->length = sizeof(struct acpi_resource); + resource->data.fixed_memory32.read_write_attribute = + (p->flags & IORESOURCE_MEM_WRITEABLE) ? + ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; + resource->data.fixed_memory32.range_base_address = p->start; + resource->data.fixed_memory32.range_length = p->end - p->start + 1; +} + +int pnpacpi_encode_resources(struct pnp_resource_table *res_table, + struct acpi_buffer *buffer) +{ + int i = 0; + /* pnpacpi_build_resource_template allocates extra mem */ + int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1; + struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer; + int port = 0, irq = 0, dma = 0, mem = 0; + + pnp_dbg("res cnt %d", res_cnt); + while (i < res_cnt) { + switch(resource->id) { + case ACPI_RSTYPE_IRQ: + pnp_dbg("Encode irq"); + pnpacpi_encode_irq(resource, + &res_table->irq_resource[irq]); + irq++; + break; + + case ACPI_RSTYPE_EXT_IRQ: + pnp_dbg("Encode ext irq"); + pnpacpi_encode_ext_irq(resource, + &res_table->irq_resource[irq]); + irq++; + break; + case ACPI_RSTYPE_DMA: + pnp_dbg("Encode dma"); + pnpacpi_encode_dma(resource, + &res_table->dma_resource[dma]); + dma ++; + break; + case ACPI_RSTYPE_IO: + pnp_dbg("Encode io"); + pnpacpi_encode_io(resource, + &res_table->port_resource[port]); + port ++; + break; + case ACPI_RSTYPE_FIXED_IO: + pnp_dbg("Encode fixed io"); + pnpacpi_encode_fixed_io(resource, + &res_table->port_resource[port]); + port ++; + break; + case ACPI_RSTYPE_MEM24: + pnp_dbg("Encode mem24"); + pnpacpi_encode_mem24(resource, + &res_table->mem_resource[mem]); + mem ++; + break; + case ACPI_RSTYPE_MEM32: + pnp_dbg("Encode mem32"); + pnpacpi_encode_mem32(resource, + &res_table->mem_resource[mem]); + mem ++; + break; + case ACPI_RSTYPE_FIXED_MEM32: + pnp_dbg("Encode fixed mem32"); + pnpacpi_encode_fixed_mem32(resource, + &res_table->mem_resource[mem]); + mem ++; + break; + default: /* other type */ + pnp_warn("unknown resource type %d", resource->id); + return -EINVAL; + } + resource ++; + i ++; + } + return 0; +} |