+/*
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
+ */
+
extern spinlock_t pnp_lock;
void *pnp_alloc(long size);
resource_size_t align; /* align boundary */
resource_size_t size; /* size of range */
unsigned char flags; /* port flags */
- unsigned char pad; /* pad */
- struct pnp_port *next; /* next port */
};
#define PNP_IRQ_NR 256
struct pnp_irq {
pnp_irq_mask_t map; /* bitmap for IRQ lines */
unsigned char flags; /* IRQ flags */
- unsigned char pad; /* pad */
- struct pnp_irq *next; /* next IRQ */
};
struct pnp_dma {
unsigned char map; /* bitmask for DMA channels */
unsigned char flags; /* DMA flags */
- struct pnp_dma *next; /* next port */
};
struct pnp_mem {
resource_size_t align; /* align boundary */
resource_size_t size; /* size of range */
unsigned char flags; /* memory flags */
- unsigned char pad; /* pad */
- struct pnp_mem *next; /* next memory resource */
};
+#define PNP_OPTION_DEPENDENT 0x80000000
+#define PNP_OPTION_SET_MASK 0xffff
+#define PNP_OPTION_SET_SHIFT 12
+#define PNP_OPTION_PRIORITY_MASK 0xfff
+#define PNP_OPTION_PRIORITY_SHIFT 0
+
#define PNP_RES_PRIORITY_PREFERRED 0
#define PNP_RES_PRIORITY_ACCEPTABLE 1
#define PNP_RES_PRIORITY_FUNCTIONAL 2
-#define PNP_RES_PRIORITY_INVALID 65535
+#define PNP_RES_PRIORITY_INVALID PNP_OPTION_PRIORITY_MASK
struct pnp_option {
- unsigned short priority; /* priority */
- struct pnp_port *port; /* first port */
- struct pnp_irq *irq; /* first IRQ */
- struct pnp_dma *dma; /* first DMA */
- struct pnp_mem *mem; /* first memory resource */
- struct pnp_option *next; /* used to chain dependent resources */
+ struct list_head list;
+ unsigned int flags; /* independent/dependent, set, priority */
+
+ unsigned long type; /* IORESOURCE_{IO,MEM,IRQ,DMA} */
+ union {
+ struct pnp_port port;
+ struct pnp_irq irq;
+ struct pnp_dma dma;
+ struct pnp_mem mem;
+ } u;
};
-struct pnp_option *pnp_build_option(int priority);
-struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev);
-struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
- int priority);
-int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_irq_resource(struct pnp_dev *dev, unsigned int option_flags,
pnp_irq_mask_t *map, unsigned char flags);
-int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_dma_resource(struct pnp_dev *dev, unsigned int option_flags,
unsigned char map, unsigned char flags);
-int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_port_resource(struct pnp_dev *dev, unsigned int option_flags,
resource_size_t min, resource_size_t max,
resource_size_t align, resource_size_t size,
unsigned char flags);
-int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_mem_resource(struct pnp_dev *dev, unsigned int option_flags,
resource_size_t min, resource_size_t max,
resource_size_t align, resource_size_t size,
unsigned char flags);
+
+static inline int pnp_option_is_dependent(struct pnp_option *option)
+{
+ return option->flags & PNP_OPTION_DEPENDENT ? 1 : 0;
+}
+
+static inline unsigned int pnp_option_set(struct pnp_option *option)
+{
+ return (option->flags >> PNP_OPTION_SET_SHIFT) & PNP_OPTION_SET_MASK;
+}
+
+static inline unsigned int pnp_option_priority(struct pnp_option *option)
+{
+ return (option->flags >> PNP_OPTION_PRIORITY_SHIFT) &
+ PNP_OPTION_PRIORITY_MASK;
+}
+
+static inline unsigned int pnp_new_dependent_set(struct pnp_dev *dev,
+ int priority)
+{
+ unsigned int flags;
+
+ if (priority > PNP_RES_PRIORITY_FUNCTIONAL) {
+ dev_warn(&dev->dev, "invalid dependent option priority %d "
+ "clipped to %d", priority,
+ PNP_RES_PRIORITY_INVALID);
+ priority = PNP_RES_PRIORITY_INVALID;
+ }
+
+ flags = PNP_OPTION_DEPENDENT |
+ ((dev->num_dependent_sets & PNP_OPTION_SET_MASK) <<
+ PNP_OPTION_SET_SHIFT) |
+ ((priority & PNP_OPTION_PRIORITY_MASK) <<
+ PNP_OPTION_PRIORITY_SHIFT);
+
+ dev->num_dependent_sets++;
+
+ return flags;
+}
+
+char *pnp_option_priority_name(struct pnp_option *option);
+void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option);
+
void pnp_init_resources(struct pnp_dev *dev);
void pnp_fixup_device(struct pnp_dev *dev);
-void pnp_free_option(struct pnp_option *option);
+void pnp_free_options(struct pnp_dev *dev);
int __pnp_add_device(struct pnp_dev *dev);
void __pnp_remove_device(struct pnp_dev *dev);
{
struct pnp_dev *dev = to_pnp_dev(dmdev);
- pnp_free_option(dev->independent);
- pnp_free_option(dev->dependent);
pnp_free_ids(dev);
pnp_free_resources(dev);
+ pnp_free_options(dev);
kfree(dev);
}
return NULL;
INIT_LIST_HEAD(&dev->resources);
+ INIT_LIST_HEAD(&dev->options);
dev->protocol = protocol;
dev->number = id;
dev->dma_mask = DMA_24BIT_MASK;
*
* Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz>
* Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
#include <linux/pnp.h>
}
static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
- struct pnp_option *option, int dep)
+ struct pnp_option *option)
{
- char *s;
- struct pnp_port *port;
- struct pnp_irq *irq;
- struct pnp_dma *dma;
- struct pnp_mem *mem;
-
- if (dep) {
- switch (option->priority) {
- case PNP_RES_PRIORITY_PREFERRED:
- s = "preferred";
- break;
- case PNP_RES_PRIORITY_ACCEPTABLE:
- s = "acceptable";
- break;
- case PNP_RES_PRIORITY_FUNCTIONAL:
- s = "functional";
- break;
- default:
- s = "invalid";
- }
- pnp_printf(buffer, "Dependent: %02i - Priority %s\n", dep, s);
+ switch (option->type) {
+ case IORESOURCE_IO:
+ pnp_print_port(buffer, space, &option->u.port);
+ break;
+ case IORESOURCE_MEM:
+ pnp_print_mem(buffer, space, &option->u.mem);
+ break;
+ case IORESOURCE_IRQ:
+ pnp_print_irq(buffer, space, &option->u.irq);
+ break;
+ case IORESOURCE_DMA:
+ pnp_print_dma(buffer, space, &option->u.dma);
+ break;
}
-
- for (port = option->port; port; port = port->next)
- pnp_print_port(buffer, space, port);
- for (irq = option->irq; irq; irq = irq->next)
- pnp_print_irq(buffer, space, irq);
- for (dma = option->dma; dma; dma = dma->next)
- pnp_print_dma(buffer, space, dma);
- for (mem = option->mem; mem; mem = mem->next)
- pnp_print_mem(buffer, space, mem);
}
static ssize_t pnp_show_options(struct device *dmdev,
{
struct pnp_dev *dev = to_pnp_dev(dmdev);
pnp_info_buffer_t *buffer;
- struct pnp_option *independent = dev->independent;
- struct pnp_option *dependent = dev->dependent;
- int ret, dep = 1;
+ struct pnp_option *option;
+ int ret, dep = 0, set = 0;
+ char *indent;
buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
if (!buffer)
buffer->len = PAGE_SIZE;
buffer->buffer = buf;
buffer->curr = buffer->buffer;
- if (independent)
- pnp_print_option(buffer, "", independent, 0);
- while (dependent) {
- pnp_print_option(buffer, " ", dependent, dep);
- dependent = dependent->next;
- dep++;
+ list_for_each_entry(option, &dev->options, list) {
+ if (pnp_option_is_dependent(option)) {
+ indent = " ";
+ if (!dep || pnp_option_set(option) != set) {
+ set = pnp_option_set(option);
+ dep = 1;
+ pnp_printf(buffer, "Dependent: %02i - "
+ "Priority %s\n", set,
+ pnp_option_priority_name(option));
+ }
+ } else {
+ dep = 0;
+ indent = "";
+ }
+ pnp_print_option(buffer, indent, option);
}
+
ret = (buffer->curr - buf);
kfree(buffer);
return ret;
* Add IRQ resource to resources list.
*/
static void __init isapnp_parse_irq_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[3];
if (size > 2)
flags = tmp[2];
- pnp_register_irq_resource(dev, option, &map, flags);
+ pnp_register_irq_resource(dev, option_flags, &map, flags);
}
/*
* Add DMA resource to resources list.
*/
static void __init isapnp_parse_dma_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[2];
isapnp_peek(tmp, size);
- pnp_register_dma_resource(dev, option, tmp[0], tmp[1]);
+ pnp_register_dma_resource(dev, option_flags, tmp[0], tmp[1]);
}
/*
* Add port resource to resources list.
*/
static void __init isapnp_parse_port_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[7];
align = tmp[5];
len = tmp[6];
flags = tmp[0] ? IORESOURCE_IO_16BIT_ADDR : 0;
- pnp_register_port_resource(dev, option, min, max, align, len, flags);
+ pnp_register_port_resource(dev, option_flags,
+ min, max, align, len, flags);
}
/*
* Add fixed port resource to resources list.
*/
static void __init isapnp_parse_fixed_port_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[3];
isapnp_peek(tmp, size);
base = (tmp[1] << 8) | tmp[0];
len = tmp[2];
- pnp_register_port_resource(dev, option, base, base, 0, len,
+ pnp_register_port_resource(dev, option_flags, base, base, 0, len,
IORESOURCE_IO_FIXED);
}
* Add memory resource to resources list.
*/
static void __init isapnp_parse_mem_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[9];
align = (tmp[6] << 8) | tmp[5];
len = ((tmp[8] << 8) | tmp[7]) << 8;
flags = tmp[0];
- pnp_register_mem_resource(dev, option, min, max, align, len, flags);
+ pnp_register_mem_resource(dev, option_flags,
+ min, max, align, len, flags);
}
/*
* Add 32-bit memory resource to resources list.
*/
static void __init isapnp_parse_mem32_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[17];
align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9];
len = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13];
flags = tmp[0];
- pnp_register_mem_resource(dev, option, min, max, align, len, flags);
+ pnp_register_mem_resource(dev, option_flags,
+ min, max, align, len, flags);
}
/*
* Add 32-bit fixed memory resource to resources list.
*/
static void __init isapnp_parse_fixed_mem32_resource(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
int size)
{
unsigned char tmp[9];
base = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];
len = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
flags = tmp[0];
- pnp_register_mem_resource(dev, option, base, base, 0, len, flags);
+ pnp_register_mem_resource(dev, option_flags, base, base, 0, len, flags);
}
/*
{
int number = 0, skip = 0, priority, compat = 0;
unsigned char type, tmp[17];
- struct pnp_option *option, *option_independent;
+ unsigned int option_flags;
struct pnp_dev *dev;
u32 eisa_id;
char id[8];
if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
return 1;
- option_independent = option = pnp_register_independent_option(dev);
- if (!option) {
- kfree(dev);
- return 1;
- }
+ option_flags = 0;
pnp_add_card_device(card, dev);
while (1) {
return 1;
size = 0;
skip = 0;
- option = pnp_register_independent_option(dev);
- option_independent = option;
- if (!option) {
- kfree(dev);
- return 1;
- }
+ option_flags = 0;
pnp_add_card_device(card, dev);
} else {
skip = 1;
case _STAG_IRQ:
if (size < 2 || size > 3)
goto __skip;
- isapnp_parse_irq_resource(dev, option, size);
+ isapnp_parse_irq_resource(dev, option_flags, size);
size = 0;
break;
case _STAG_DMA:
if (size != 2)
goto __skip;
- isapnp_parse_dma_resource(dev, option, size);
+ isapnp_parse_dma_resource(dev, option_flags, size);
size = 0;
break;
case _STAG_STARTDEP:
priority = tmp[0];
size = 0;
}
- option = pnp_register_dependent_option(dev, priority);
- if (!option)
- return 1;
+ option_flags = pnp_new_dependent_set(dev, priority);
break;
case _STAG_ENDDEP:
if (size != 0)
goto __skip;
- if (option_independent == option)
- dev_warn(&dev->dev, "missing "
- "_STAG_STARTDEP tag\n");
- option = option_independent;
- dev_dbg(&dev->dev, "end dependent options\n");
+ option_flags = 0;
break;
case _STAG_IOPORT:
if (size != 7)
goto __skip;
- isapnp_parse_port_resource(dev, option, size);
+ isapnp_parse_port_resource(dev, option_flags, size);
size = 0;
break;
case _STAG_FIXEDIO:
if (size != 3)
goto __skip;
- isapnp_parse_fixed_port_resource(dev, option, size);
+ isapnp_parse_fixed_port_resource(dev, option_flags,
+ size);
size = 0;
break;
case _STAG_VENDOR:
case _LTAG_MEMRANGE:
if (size != 9)
goto __skip;
- isapnp_parse_mem_resource(dev, option, size);
+ isapnp_parse_mem_resource(dev, option_flags, size);
size = 0;
break;
case _LTAG_ANSISTR:
case _LTAG_MEM32RANGE:
if (size != 17)
goto __skip;
- isapnp_parse_mem32_resource(dev, option, size);
+ isapnp_parse_mem32_resource(dev, option_flags, size);
size = 0;
break;
case _LTAG_FIXEDMEM32RANGE:
if (size != 9)
goto __skip;
- isapnp_parse_fixed_mem32_resource(dev, option, size);
+ isapnp_parse_fixed_mem32_resource(dev, option_flags,
+ size);
size = 0;
break;
case _STAG_END:
*
* based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
#include <linux/errno.h>
/**
* pnp_assign_resources - assigns resources to the device based on the specified dependent number
* @dev: pointer to the desired device
- * @depnum: the dependent function number
- *
- * Only set depnum to 0 if the device does not have dependent options.
+ * @set: the dependent function number
*/
-static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
+static int pnp_assign_resources(struct pnp_dev *dev, int set)
{
- struct pnp_port *port;
- struct pnp_mem *mem;
- struct pnp_irq *irq;
- struct pnp_dma *dma;
+ struct pnp_option *option;
int nport = 0, nmem = 0, nirq = 0, ndma = 0;
+ int ret = 0;
- dbg_pnp_show_resources(dev, "before pnp_assign_resources");
+ dev_dbg(&dev->dev, "pnp_assign_resources, try dependent set %d\n", set);
mutex_lock(&pnp_res_mutex);
pnp_clean_resource_table(dev);
- if (dev->independent) {
- dev_dbg(&dev->dev, "assigning independent options\n");
- port = dev->independent->port;
- mem = dev->independent->mem;
- irq = dev->independent->irq;
- dma = dev->independent->dma;
- while (port) {
- if (pnp_assign_port(dev, port, nport) < 0)
- goto fail;
- nport++;
- port = port->next;
- }
- while (mem) {
- if (pnp_assign_mem(dev, mem, nmem) < 0)
- goto fail;
- nmem++;
- mem = mem->next;
- }
- while (irq) {
- if (pnp_assign_irq(dev, irq, nirq) < 0)
- goto fail;
- nirq++;
- irq = irq->next;
- }
- while (dma) {
- if (pnp_assign_dma(dev, dma, ndma) < 0)
- goto fail;
- ndma++;
- dma = dma->next;
- }
- }
- if (depnum) {
- struct pnp_option *dep;
- int i;
-
- dev_dbg(&dev->dev, "assigning dependent option %d\n", depnum);
- for (i = 1, dep = dev->dependent; i < depnum;
- i++, dep = dep->next)
- if (!dep)
- goto fail;
- port = dep->port;
- mem = dep->mem;
- irq = dep->irq;
- dma = dep->dma;
- while (port) {
- if (pnp_assign_port(dev, port, nport) < 0)
- goto fail;
- nport++;
- port = port->next;
- }
- while (mem) {
- if (pnp_assign_mem(dev, mem, nmem) < 0)
- goto fail;
- nmem++;
- mem = mem->next;
- }
- while (irq) {
- if (pnp_assign_irq(dev, irq, nirq) < 0)
- goto fail;
- nirq++;
- irq = irq->next;
- }
- while (dma) {
- if (pnp_assign_dma(dev, dma, ndma) < 0)
- goto fail;
- ndma++;
- dma = dma->next;
+ list_for_each_entry(option, &dev->options, list) {
+ if (pnp_option_is_dependent(option) &&
+ pnp_option_set(option) != set)
+ continue;
+
+ switch (option->type) {
+ case IORESOURCE_IO:
+ ret = pnp_assign_port(dev, &option->u.port, nport++);
+ break;
+ case IORESOURCE_MEM:
+ ret = pnp_assign_mem(dev, &option->u.mem, nmem++);
+ break;
+ case IORESOURCE_IRQ:
+ ret = pnp_assign_irq(dev, &option->u.irq, nirq++);
+ break;
+ case IORESOURCE_DMA:
+ ret = pnp_assign_dma(dev, &option->u.dma, ndma++);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
}
- } else if (dev->dependent)
- goto fail;
-
- mutex_unlock(&pnp_res_mutex);
- dbg_pnp_show_resources(dev, "after pnp_assign_resources");
- return 1;
+ if (ret < 0)
+ break;
+ }
-fail:
- pnp_clean_resource_table(dev);
mutex_unlock(&pnp_res_mutex);
- dbg_pnp_show_resources(dev, "after pnp_assign_resources (failed)");
- return 0;
+ if (ret < 0) {
+ dev_dbg(&dev->dev, "pnp_assign_resources failed (%d)\n", ret);
+ pnp_clean_resource_table(dev);
+ } else
+ dbg_pnp_show_resources(dev, "pnp_assign_resources succeeded");
+ return ret;
}
/**
*/
int pnp_auto_config_dev(struct pnp_dev *dev)
{
- struct pnp_option *dep;
- int i = 1;
+ int i, ret;
if (!pnp_can_configure(dev)) {
dev_dbg(&dev->dev, "configuration not supported\n");
return -ENODEV;
}
- if (!dev->dependent) {
- if (pnp_assign_resources(dev, 0))
+ ret = pnp_assign_resources(dev, 0);
+ if (ret == 0)
+ return 0;
+
+ for (i = 1; i < dev->num_dependent_sets; i++) {
+ ret = pnp_assign_resources(dev, i);
+ if (ret == 0)
return 0;
- } else {
- dep = dev->dependent;
- do {
- if (pnp_assign_resources(dev, i))
- return 0;
- dep = dep->next;
- i++;
- } while (dep);
}
dev_err(&dev->dev, "unable to assign resources\n");
- return -EBUSY;
+ return ret;
}
/**
}
static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_dma *p)
{
int i;
map |= 1 << p->channels[i];
flags = dma_flags(p->type, p->bus_master, p->transfer);
- pnp_register_dma_resource(dev, option, map, flags);
+ pnp_register_dma_resource(dev, option_flags, map, flags);
}
static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_irq *p)
{
int i;
__set_bit(p->interrupts[i], map.bits);
flags = irq_flags(p->triggering, p->polarity, p->sharable);
- pnp_register_irq_resource(dev, option, &map, flags);
+ pnp_register_irq_resource(dev, option_flags, &map, flags);
}
static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_extended_irq *p)
{
int i;
}
flags = irq_flags(p->triggering, p->polarity, p->sharable);
- pnp_register_irq_resource(dev, option, &map, flags);
+ pnp_register_irq_resource(dev, option_flags, &map, flags);
}
static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_io *io)
{
unsigned char flags = 0;
if (io->io_decode == ACPI_DECODE_16)
flags = IORESOURCE_IO_16BIT_ADDR;
- pnp_register_port_resource(dev, option, io->minimum, io->maximum,
+ pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
io->alignment, io->address_length, flags);
}
static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_fixed_io *io)
{
if (io->address_length == 0)
return;
- pnp_register_port_resource(dev, option, io->address, io->address, 0,
- io->address_length, IORESOURCE_IO_FIXED);
+ pnp_register_port_resource(dev, option_flags, io->address, io->address,
+ 0, io->address_length, IORESOURCE_IO_FIXED);
}
static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_memory24 *p)
{
unsigned char flags = 0;
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
flags = IORESOURCE_MEM_WRITEABLE;
- pnp_register_mem_resource(dev, option, p->minimum, p->maximum,
+ pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
p->alignment, p->address_length, flags);
}
static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_memory32 *p)
{
unsigned char flags = 0;
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
flags = IORESOURCE_MEM_WRITEABLE;
- pnp_register_mem_resource(dev, option, p->minimum, p->maximum,
+ pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
p->alignment, p->address_length, flags);
}
static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource_fixed_memory32 *p)
{
unsigned char flags = 0;
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
flags = IORESOURCE_MEM_WRITEABLE;
- pnp_register_mem_resource(dev, option, p->address, p->address,
+ pnp_register_mem_resource(dev, option_flags, p->address, p->address,
0, p->address_length, flags);
}
static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
- struct pnp_option *option,
+ unsigned int option_flags,
struct acpi_resource *r)
{
struct acpi_resource_address64 addr, *p = &addr;
if (p->resource_type == ACPI_MEMORY_RANGE) {
if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
flags = IORESOURCE_MEM_WRITEABLE;
- pnp_register_mem_resource(dev, option, p->minimum, p->minimum,
- 0, p->address_length, flags);
+ pnp_register_mem_resource(dev, option_flags, p->minimum,
+ p->minimum, 0, p->address_length,
+ flags);
} else if (p->resource_type == ACPI_IO_RANGE)
- pnp_register_port_resource(dev, option, p->minimum, p->minimum,
- 0, p->address_length,
+ pnp_register_port_resource(dev, option_flags, p->minimum,
+ p->minimum, 0, p->address_length,
IORESOURCE_IO_FIXED);
}
struct acpipnp_parse_option_s {
- struct pnp_option *option;
- struct pnp_option *option_independent;
struct pnp_dev *dev;
+ unsigned int option_flags;
};
static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
int priority;
struct acpipnp_parse_option_s *parse_data = data;
struct pnp_dev *dev = parse_data->dev;
- struct pnp_option *option = parse_data->option;
+ unsigned int option_flags = parse_data->option_flags;
switch (res->type) {
case ACPI_RESOURCE_TYPE_IRQ:
- pnpacpi_parse_irq_option(dev, option, &res->data.irq);
+ pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
break;
case ACPI_RESOURCE_TYPE_DMA:
- pnpacpi_parse_dma_option(dev, option, &res->data.dma);
+ pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
break;
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
priority = PNP_RES_PRIORITY_INVALID;
break;
}
- /* TBD: Consider performance/robustness bits */
- option = pnp_register_dependent_option(dev, priority);
- if (!option)
- return AE_ERROR;
- parse_data->option = option;
+ parse_data->option_flags = pnp_new_dependent_set(dev, priority);
break;
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
- /*only one EndDependentFn is allowed */
- if (!parse_data->option_independent) {
- dev_warn(&dev->dev, "more than one EndDependentFn "
- "in _PRS\n");
- return AE_ERROR;
- }
- parse_data->option = parse_data->option_independent;
- parse_data->option_independent = NULL;
- dev_dbg(&dev->dev, "end dependent options\n");
+ parse_data->option_flags = 0;
break;
case ACPI_RESOURCE_TYPE_IO:
- pnpacpi_parse_port_option(dev, option, &res->data.io);
+ pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
break;
case ACPI_RESOURCE_TYPE_FIXED_IO:
- pnpacpi_parse_fixed_port_option(dev, option,
+ pnpacpi_parse_fixed_port_option(dev, option_flags,
&res->data.fixed_io);
break;
break;
case ACPI_RESOURCE_TYPE_MEMORY24:
- pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
+ pnpacpi_parse_mem24_option(dev, option_flags,
+ &res->data.memory24);
break;
case ACPI_RESOURCE_TYPE_MEMORY32:
- pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
+ pnpacpi_parse_mem32_option(dev, option_flags,
+ &res->data.memory32);
break;
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
- pnpacpi_parse_fixed_mem32_option(dev, option,
+ pnpacpi_parse_fixed_mem32_option(dev, option_flags,
&res->data.fixed_memory32);
break;
case ACPI_RESOURCE_TYPE_ADDRESS16:
case ACPI_RESOURCE_TYPE_ADDRESS32:
case ACPI_RESOURCE_TYPE_ADDRESS64:
- pnpacpi_parse_address_option(dev, option, res);
+ pnpacpi_parse_address_option(dev, option_flags, res);
break;
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
break;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
- pnpacpi_parse_ext_irq_option(dev, option,
+ pnpacpi_parse_ext_irq_option(dev, option_flags,
&res->data.extended_irq);
break;
dev_dbg(&dev->dev, "parse resource options\n");
- parse_data.option = pnp_register_independent_option(dev);
- if (!parse_data.option)
- return -ENOMEM;
-
- parse_data.option_independent = parse_data.option;
parse_data.dev = dev;
+ parse_data.option_flags = 0;
+
status = acpi_walk_resources(handle, METHOD_NAME__PRS,
pnpacpi_option_resource, &parse_data);
static __init void pnpbios_parse_mem_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
resource_size_t min, max, align, len;
unsigned char flags;
align = (p[9] << 8) | p[8];
len = ((p[11] << 8) | p[10]) << 8;
flags = p[3];
- pnp_register_mem_resource(dev, option, min, max, align, len, flags);
+ pnp_register_mem_resource(dev, option_flags, min, max, align, len,
+ flags);
}
static __init void pnpbios_parse_mem32_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
resource_size_t min, max, align, len;
unsigned char flags;
align = (p[15] << 24) | (p[14] << 16) | (p[13] << 8) | p[12];
len = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
flags = p[3];
- pnp_register_mem_resource(dev, option, min, max, align, len, flags);
+ pnp_register_mem_resource(dev, option_flags, min, max, align, len,
+ flags);
}
static __init void pnpbios_parse_fixed_mem32_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
resource_size_t base, len;
unsigned char flags;
base = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
len = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
flags = p[3];
- pnp_register_mem_resource(dev, option, base, base, 0, len, flags);
+ pnp_register_mem_resource(dev, option_flags, base, base, 0, len, flags);
}
static __init void pnpbios_parse_irq_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
unsigned long bits;
pnp_irq_mask_t map;
if (size > 2)
flags = p[3];
- pnp_register_irq_resource(dev, option, &map, flags);
+ pnp_register_irq_resource(dev, option_flags, &map, flags);
}
static __init void pnpbios_parse_dma_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
- pnp_register_dma_resource(dev, option, p[1], p[2]);
+ pnp_register_dma_resource(dev, option_flags, p[1], p[2]);
}
static __init void pnpbios_parse_port_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
resource_size_t min, max, align, len;
unsigned char flags;
align = p[6];
len = p[7];
flags = p[1] ? IORESOURCE_IO_16BIT_ADDR : 0;
- pnp_register_port_resource(dev, option, min, max, align, len, flags);
+ pnp_register_port_resource(dev, option_flags, min, max, align, len,
+ flags);
}
static __init void pnpbios_parse_fixed_port_option(struct pnp_dev *dev,
unsigned char *p, int size,
- struct pnp_option *option)
+ unsigned int option_flags)
{
resource_size_t base, len;
base = (p[2] << 8) | p[1];
len = p[3];
- pnp_register_port_resource(dev, option, base, base, 0, len,
+ pnp_register_port_resource(dev, option_flags, base, base, 0, len,
IORESOURCE_IO_FIXED);
}
static __init unsigned char *
pnpbios_parse_resource_option_data(unsigned char *p, unsigned char *end,
- struct pnp_dev *dev)
+ struct pnp_dev *dev)
{
unsigned int len, tag;
int priority;
- struct pnp_option *option, *option_independent;
+ unsigned int option_flags;
if (!p)
return NULL;
dev_dbg(&dev->dev, "parse resource options\n");
-
- option_independent = option = pnp_register_independent_option(dev);
- if (!option)
- return NULL;
-
+ option_flags = 0;
while ((char *)p < (char *)end) {
/* determine the type of tag */
case LARGE_TAG_MEM:
if (len != 9)
goto len_err;
- pnpbios_parse_mem_option(dev, p, len, option);
+ pnpbios_parse_mem_option(dev, p, len, option_flags);
break;
case LARGE_TAG_MEM32:
if (len != 17)
goto len_err;
- pnpbios_parse_mem32_option(dev, p, len, option);
+ pnpbios_parse_mem32_option(dev, p, len, option_flags);
break;
case LARGE_TAG_FIXEDMEM32:
if (len != 9)
goto len_err;
- pnpbios_parse_fixed_mem32_option(dev, p, len, option);
+ pnpbios_parse_fixed_mem32_option(dev, p, len,
+ option_flags);
break;
case SMALL_TAG_IRQ:
if (len < 2 || len > 3)
goto len_err;
- pnpbios_parse_irq_option(dev, p, len, option);
+ pnpbios_parse_irq_option(dev, p, len, option_flags);
break;
case SMALL_TAG_DMA:
if (len != 2)
goto len_err;
- pnpbios_parse_dma_option(dev, p, len, option);
+ pnpbios_parse_dma_option(dev, p, len, option_flags);
break;
case SMALL_TAG_PORT:
if (len != 7)
goto len_err;
- pnpbios_parse_port_option(dev, p, len, option);
+ pnpbios_parse_port_option(dev, p, len, option_flags);
break;
case SMALL_TAG_VENDOR:
case SMALL_TAG_FIXEDPORT:
if (len != 3)
goto len_err;
- pnpbios_parse_fixed_port_option(dev, p, len, option);
+ pnpbios_parse_fixed_port_option(dev, p, len,
+ option_flags);
break;
case SMALL_TAG_STARTDEP:
priority = PNP_RES_PRIORITY_ACCEPTABLE;
if (len > 0)
priority = p[1];
- option = pnp_register_dependent_option(dev, priority);
- if (!option)
- return NULL;
+ option_flags = pnp_new_dependent_set(dev, priority);
break;
case SMALL_TAG_ENDDEP:
if (len != 0)
goto len_err;
- if (option_independent == option)
- dev_warn(&dev->dev, "missing "
- "SMALL_TAG_STARTDEP tag\n");
- option = option_independent;
- dev_dbg(&dev->dev, "end dependent options\n");
+ option_flags = 0;
break;
case SMALL_TAG_END:
* when building up the resource structure for the first time.
*
* Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* Heavily based on PCI quirks handling which is
*
#include <linux/kallsyms.h>
#include "base.h"
+static void quirk_awe32_add_ports(struct pnp_dev *dev,
+ struct pnp_option *option,
+ unsigned int offset)
+{
+ struct pnp_option *new_option;
+
+ new_option = kmalloc(sizeof(struct pnp_option), GFP_KERNEL);
+ if (!new_option) {
+ dev_err(&dev->dev, "couldn't add ioport region to option set "
+ "%d\n", pnp_option_set(option));
+ return;
+ }
+
+ *new_option = *option;
+ new_option->u.port.min += offset;
+ new_option->u.port.max += offset;
+ list_add(&new_option->list, &option->list);
+
+ dev_info(&dev->dev, "added ioport region %#llx-%#llx to set %d\n",
+ (unsigned long long) new_option->u.port.min,
+ (unsigned long long) new_option->u.port.max,
+ pnp_option_set(option));
+}
+
static void quirk_awe32_resources(struct pnp_dev *dev)
{
- struct pnp_port *port, *port2, *port3;
- struct pnp_option *res = dev->dependent;
+ struct pnp_option *option;
+ unsigned int set = ~0;
/*
- * Unfortunately the isapnp_add_port_resource is too tightly bound
- * into the PnP discovery sequence, and cannot be used. Link in the
- * two extra ports (at offset 0x400 and 0x800 from the one given) by
- * hand.
+ * Add two extra ioport regions (at offset 0x400 and 0x800 from the
+ * one given) to every dependent option set.
*/
- for (; res; res = res->next) {
- port2 = pnp_alloc(sizeof(struct pnp_port));
- if (!port2)
- return;
- port3 = pnp_alloc(sizeof(struct pnp_port));
- if (!port3) {
- kfree(port2);
- return;
+ list_for_each_entry(option, &dev->options, list) {
+ if (pnp_option_is_dependent(option) &&
+ pnp_option_set(option) != set) {
+ set = pnp_option_set(option);
+ quirk_awe32_add_ports(dev, option, 0x800);
+ quirk_awe32_add_ports(dev, option, 0x400);
}
- port = res->port;
- memcpy(port2, port, sizeof(struct pnp_port));
- memcpy(port3, port, sizeof(struct pnp_port));
- port->next = port2;
- port2->next = port3;
- port2->min += 0x400;
- port2->max += 0x400;
- port3->min += 0x800;
- port3->max += 0x800;
- dev_info(&dev->dev,
- "AWE32 quirk - added ioports 0x%lx and 0x%lx\n",
- (unsigned long)port2->min,
- (unsigned long)port3->min);
}
}
static void quirk_cmi8330_resources(struct pnp_dev *dev)
{
- struct pnp_option *res = dev->dependent;
- unsigned long tmp;
-
- for (; res; res = res->next) {
-
- struct pnp_irq *irq;
- struct pnp_dma *dma;
+ struct pnp_option *option;
+ struct pnp_irq *irq;
+ struct pnp_dma *dma;
- for (irq = res->irq; irq; irq = irq->next) {
- /* Valid irqs are 5, 7, 10 */
- tmp = 0x04A0;
- bitmap_copy(irq->map.bits, &tmp, 16);
- }
+ list_for_each_entry(option, &dev->options, list) {
+ if (!pnp_option_is_dependent(option))
+ continue;
- for (dma = res->dma; dma; dma = dma->next) {
- /* Valid 8bit dma channels are 1,3 */
+ if (option->type == IORESOURCE_IRQ) {
+ irq = &option->u.irq;
+ bitmap_zero(irq->map.bits, PNP_IRQ_NR);
+ __set_bit(5, irq->map.bits);
+ __set_bit(7, irq->map.bits);
+ __set_bit(10, irq->map.bits);
+ dev_info(&dev->dev, "set possible IRQs in "
+ "option set %d to 5, 7, 10\n",
+ pnp_option_set(option));
+ } else if (option->type == IORESOURCE_DMA) {
+ dma = &option->u.dma;
if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) ==
- IORESOURCE_DMA_8BIT)
- dma->map = 0x000A;
+ IORESOURCE_DMA_8BIT &&
+ dma->map != 0x0A) {
+ dev_info(&dev->dev, "changing possible "
+ "DMA channel mask in option set %d "
+ "from %#02x to 0x0A (1, 3)\n",
+ pnp_option_set(option), dma->map);
+ dma->map = 0x0A;
+ }
}
}
- dev_info(&dev->dev, "CMI8330 quirk - forced possible IRQs to 5, 7, 10 "
- "and DMA channels to 1, 3\n");
}
static void quirk_sb16audio_resources(struct pnp_dev *dev)
{
+ struct pnp_option *option;
+ unsigned int prev_option_flags = ~0, n = 0;
struct pnp_port *port;
- struct pnp_option *res = dev->dependent;
- int changed = 0;
/*
- * The default range on the mpu port for these devices is 0x388-0x388.
+ * The default range on the OPL port for these devices is 0x388-0x388.
* Here we increase that range so that two such cards can be
* auto-configured.
*/
+ list_for_each_entry(option, &dev->options, list) {
+ if (prev_option_flags != option->flags) {
+ prev_option_flags = option->flags;
+ n = 0;
+ }
- for (; res; res = res->next) {
- port = res->port;
- if (!port)
- continue;
- port = port->next;
- if (!port)
- continue;
- port = port->next;
- if (!port)
- continue;
- if (port->min != port->max)
- continue;
- port->max += 0x70;
- changed = 1;
+ if (pnp_option_is_dependent(option) &&
+ option->type == IORESOURCE_IO) {
+ n++;
+ port = &option->u.port;
+ if (n == 3 && port->min == port->max) {
+ port->max += 0x70;
+ dev_info(&dev->dev, "increased option port "
+ "range from %#llx-%#llx to "
+ "%#llx-%#llx\n",
+ (unsigned long long) port->min,
+ (unsigned long long) port->min,
+ (unsigned long long) port->min,
+ (unsigned long long) port->max);
+ }
+ }
}
- if (changed)
- dev_info(&dev->dev, "SB audio device quirk - increased port range\n");
}
-static struct pnp_option *quirk_isapnp_mpu_options(struct pnp_dev *dev)
+static struct pnp_option *pnp_clone_dependent_set(struct pnp_dev *dev,
+ unsigned int set)
{
- struct pnp_option *head = NULL;
- struct pnp_option *prev = NULL;
- struct pnp_option *res;
-
- /*
- * Build a functional IRQ-optional variant of each MPU option.
- */
-
- for (res = dev->dependent; res; res = res->next) {
- struct pnp_option *curr;
- struct pnp_port *port;
- struct pnp_port *copy_port;
- struct pnp_irq *irq;
- struct pnp_irq *copy_irq;
-
- port = res->port;
- irq = res->irq;
- if (!port || !irq)
- continue;
+ struct pnp_option *tail = NULL, *first_new_option = NULL;
+ struct pnp_option *option, *new_option;
+ unsigned int flags;
- copy_port = pnp_alloc(sizeof *copy_port);
- if (!copy_port)
- break;
-
- copy_irq = pnp_alloc(sizeof *copy_irq);
- if (!copy_irq) {
- kfree(copy_port);
- break;
- }
+ list_for_each_entry(option, &dev->options, list) {
+ if (pnp_option_is_dependent(option))
+ tail = option;
+ }
+ if (!tail) {
+ dev_err(&dev->dev, "no dependent option sets\n");
+ return NULL;
+ }
- *copy_port = *port;
- copy_port->next = NULL;
+ flags = pnp_new_dependent_set(dev, PNP_RES_PRIORITY_FUNCTIONAL);
+ list_for_each_entry(option, &dev->options, list) {
+ if (pnp_option_is_dependent(option) &&
+ pnp_option_set(option) == set) {
+ new_option = kmalloc(sizeof(struct pnp_option),
+ GFP_KERNEL);
+ if (!new_option) {
+ dev_err(&dev->dev, "couldn't clone dependent "
+ "set %d\n", set);
+ return NULL;
+ }
- *copy_irq = *irq;
- copy_irq->flags |= IORESOURCE_IRQ_OPTIONAL;
- copy_irq->next = NULL;
+ *new_option = *option;
+ new_option->flags = flags;
+ if (!first_new_option)
+ first_new_option = new_option;
- curr = pnp_build_option(PNP_RES_PRIORITY_FUNCTIONAL);
- if (!curr) {
- kfree(copy_port);
- kfree(copy_irq);
- break;
+ list_add(&new_option->list, &tail->list);
+ tail = new_option;
}
- curr->port = copy_port;
- curr->irq = copy_irq;
-
- if (prev)
- prev->next = curr;
- else
- head = curr;
- prev = curr;
}
- if (head)
- dev_info(&dev->dev, "adding IRQ-optional MPU options\n");
- return head;
+ return first_new_option;
}
-static void quirk_ad1815_mpu_resources(struct pnp_dev *dev)
+
+static void quirk_add_irq_optional_dependent_sets(struct pnp_dev *dev)
{
- struct pnp_option *res;
+ struct pnp_option *new_option;
+ unsigned int num_sets, i, set;
struct pnp_irq *irq;
- res = dev->independent;
- if (!res)
- return;
+ num_sets = dev->num_dependent_sets;
+ for (i = 0; i < num_sets; i++) {
+ new_option = pnp_clone_dependent_set(dev, i);
+ if (!new_option)
+ return;
- irq = res->irq;
- if (!irq || irq->next)
- return;
+ set = pnp_option_set(new_option);
+ while (new_option && pnp_option_set(new_option) == set) {
+ if (new_option->type == IORESOURCE_IRQ) {
+ irq = &new_option->u.irq;
+ irq->flags |= IORESOURCE_IRQ_OPTIONAL;
+ }
+ dbg_pnp_show_option(dev, new_option);
+ new_option = list_entry(new_option->list.next,
+ struct pnp_option, list);
+ }
- irq->flags |= IORESOURCE_IRQ_OPTIONAL;
- dev_info(&dev->dev, "made independent IRQ optional\n");
+ dev_info(&dev->dev, "added dependent option set %d (same as "
+ "set %d except IRQ optional)\n", set, i);
+ }
}
-static void quirk_isapnp_mpu_resources(struct pnp_dev *dev)
+static void quirk_ad1815_mpu_resources(struct pnp_dev *dev)
{
- struct pnp_option *res;
+ struct pnp_option *option;
+ struct pnp_irq *irq = NULL;
+ unsigned int independent_irqs = 0;
+
+ list_for_each_entry(option, &dev->options, list) {
+ if (option->type == IORESOURCE_IRQ &&
+ !pnp_option_is_dependent(option)) {
+ independent_irqs++;
+ irq = &option->u.irq;
+ }
+ }
- res = dev->dependent;
- if (!res)
+ if (independent_irqs != 1)
return;
- while (res->next)
- res = res->next;
-
- res->next = quirk_isapnp_mpu_options(dev);
+ irq->flags |= IORESOURCE_IRQ_OPTIONAL;
+ dev_info(&dev->dev, "made independent IRQ optional\n");
}
#include <linux/pci.h>
{"CTL0043", quirk_sb16audio_resources},
{"CTL0044", quirk_sb16audio_resources},
{"CTL0045", quirk_sb16audio_resources},
- /* Add IRQ-less MPU options */
+ /* Add IRQ-optional MPU options */
{"ADS7151", quirk_ad1815_mpu_resources},
- {"ADS7181", quirk_isapnp_mpu_resources},
- {"AZT0002", quirk_isapnp_mpu_resources},
+ {"ADS7181", quirk_add_irq_optional_dependent_sets},
+ {"AZT0002", quirk_add_irq_optional_dependent_sets},
/* PnP resources that might overlap PCI BARs */
{"PNP0c01", quirk_system_pci_resources},
{"PNP0c02", quirk_system_pci_resources},
*
* based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
#include <linux/module.h>
* option registration
*/
-struct pnp_option *pnp_build_option(int priority)
+struct pnp_option *pnp_build_option(struct pnp_dev *dev, unsigned long type,
+ unsigned int option_flags)
{
- struct pnp_option *option = pnp_alloc(sizeof(struct pnp_option));
+ struct pnp_option *option;
+ option = kzalloc(sizeof(struct pnp_option), GFP_KERNEL);
if (!option)
return NULL;
- option->priority = priority & 0xff;
- /* make sure the priority is valid */
- if (option->priority > PNP_RES_PRIORITY_FUNCTIONAL)
- option->priority = PNP_RES_PRIORITY_INVALID;
-
- return option;
-}
-
-struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev)
-{
- struct pnp_option *option;
-
- option = pnp_build_option(PNP_RES_PRIORITY_PREFERRED);
-
- /* this should never happen but if it does we'll try to continue */
- if (dev->independent)
- dev_err(&dev->dev, "independent resource already registered\n");
- dev->independent = option;
-
- dev_dbg(&dev->dev, "new independent option\n");
- return option;
-}
-
-struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
- int priority)
-{
- struct pnp_option *option;
+ option->flags = option_flags;
+ option->type = type;
- option = pnp_build_option(priority);
-
- if (dev->dependent) {
- struct pnp_option *parent = dev->dependent;
- while (parent->next)
- parent = parent->next;
- parent->next = option;
- } else
- dev->dependent = option;
-
- dev_dbg(&dev->dev, "new dependent option (priority %#x)\n", priority);
+ list_add_tail(&option->list, &dev->options);
return option;
}
-int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_irq_resource(struct pnp_dev *dev, unsigned int option_flags,
pnp_irq_mask_t *map, unsigned char flags)
{
- struct pnp_irq *irq, *ptr;
-#ifdef DEBUG
- char buf[PNP_IRQ_NR]; /* hex-encoded, so this is overkill but safe */
-#endif
+ struct pnp_option *option;
+ struct pnp_irq *irq;
- irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
- if (!irq)
+ option = pnp_build_option(dev, IORESOURCE_IRQ, option_flags);
+ if (!option)
return -ENOMEM;
+ irq = &option->u.irq;
irq->map = *map;
irq->flags = flags;
- ptr = option->irq;
- while (ptr && ptr->next)
- ptr = ptr->next;
- if (ptr)
- ptr->next = irq;
- else
- option->irq = irq;
-
#ifdef CONFIG_PCI
{
int i;
}
#endif
-#ifdef DEBUG
- bitmap_scnprintf(buf, sizeof(buf), irq->map.bits, PNP_IRQ_NR);
- dev_dbg(&dev->dev, " irq bitmask %s flags %#x\n", buf,
- irq->flags);
-#endif
+ dbg_pnp_show_option(dev, option);
return 0;
}
-int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_dma_resource(struct pnp_dev *dev, unsigned int option_flags,
unsigned char map, unsigned char flags)
{
- struct pnp_dma *dma, *ptr;
+ struct pnp_option *option;
+ struct pnp_dma *dma;
- dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
- if (!dma)
+ option = pnp_build_option(dev, IORESOURCE_DMA, option_flags);
+ if (!option)
return -ENOMEM;
+ dma = &option->u.dma;
dma->map = map;
dma->flags = flags;
- ptr = option->dma;
- while (ptr && ptr->next)
- ptr = ptr->next;
- if (ptr)
- ptr->next = dma;
- else
- option->dma = dma;
-
- dev_dbg(&dev->dev, " dma bitmask %#x flags %#x\n", dma->map,
- dma->flags);
+ dbg_pnp_show_option(dev, option);
return 0;
}
-int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_port_resource(struct pnp_dev *dev, unsigned int option_flags,
resource_size_t min, resource_size_t max,
resource_size_t align, resource_size_t size,
unsigned char flags)
{
- struct pnp_port *port, *ptr;
+ struct pnp_option *option;
+ struct pnp_port *port;
- port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
- if (!port)
+ option = pnp_build_option(dev, IORESOURCE_IO, option_flags);
+ if (!option)
return -ENOMEM;
+ port = &option->u.port;
port->min = min;
port->max = max;
port->align = align;
port->size = size;
port->flags = flags;
- ptr = option->port;
- while (ptr && ptr->next)
- ptr = ptr->next;
- if (ptr)
- ptr->next = port;
- else
- option->port = port;
-
- dev_dbg(&dev->dev, " io "
- "min %#llx max %#llx align %lld size %lld flags %#x\n",
- (unsigned long long) port->min,
- (unsigned long long) port->max,
- (unsigned long long) port->align,
- (unsigned long long) port->size, port->flags);
+ dbg_pnp_show_option(dev, option);
return 0;
}
-int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
+int pnp_register_mem_resource(struct pnp_dev *dev, unsigned int option_flags,
resource_size_t min, resource_size_t max,
resource_size_t align, resource_size_t size,
unsigned char flags)
{
- struct pnp_mem *mem, *ptr;
+ struct pnp_option *option;
+ struct pnp_mem *mem;
- mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
- if (!mem)
+ option = pnp_build_option(dev, IORESOURCE_MEM, option_flags);
+ if (!option)
return -ENOMEM;
+ mem = &option->u.mem;
mem->min = min;
mem->max = max;
mem->align = align;
mem->size = size;
mem->flags = flags;
- ptr = option->mem;
- while (ptr && ptr->next)
- ptr = ptr->next;
- if (ptr)
- ptr->next = mem;
- else
- option->mem = mem;
-
- dev_dbg(&dev->dev, " mem "
- "min %#llx max %#llx align %lld size %lld flags %#x\n",
- (unsigned long long) mem->min,
- (unsigned long long) mem->max,
- (unsigned long long) mem->align,
- (unsigned long long) mem->size, mem->flags);
+ dbg_pnp_show_option(dev, option);
return 0;
}
-static void pnp_free_port(struct pnp_port *port)
-{
- struct pnp_port *next;
-
- while (port) {
- next = port->next;
- kfree(port);
- port = next;
- }
-}
-
-static void pnp_free_irq(struct pnp_irq *irq)
-{
- struct pnp_irq *next;
-
- while (irq) {
- next = irq->next;
- kfree(irq);
- irq = next;
- }
-}
-
-static void pnp_free_dma(struct pnp_dma *dma)
-{
- struct pnp_dma *next;
-
- while (dma) {
- next = dma->next;
- kfree(dma);
- dma = next;
- }
-}
-
-static void pnp_free_mem(struct pnp_mem *mem)
+void pnp_free_options(struct pnp_dev *dev)
{
- struct pnp_mem *next;
-
- while (mem) {
- next = mem->next;
- kfree(mem);
- mem = next;
- }
-}
+ struct pnp_option *option, *tmp;
-void pnp_free_option(struct pnp_option *option)
-{
- struct pnp_option *next;
-
- while (option) {
- next = option->next;
- pnp_free_port(option->port);
- pnp_free_irq(option->irq);
- pnp_free_dma(option->dma);
- pnp_free_mem(option->mem);
+ list_for_each_entry_safe(option, tmp, &dev->options, list) {
+ list_del(&option->list);
kfree(option);
- option = next;
}
}
return pnp_res;
}
-static int pnp_possible_option(struct pnp_option *option, int type,
- resource_size_t start, resource_size_t size)
+/*
+ * Determine whether the specified resource is a possible configuration
+ * for this device.
+ */
+int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t start,
+ resource_size_t size)
{
- struct pnp_option *tmp;
+ struct pnp_option *option;
struct pnp_port *port;
struct pnp_mem *mem;
struct pnp_irq *irq;
struct pnp_dma *dma;
- if (!option)
- return 0;
+ list_for_each_entry(option, &dev->options, list) {
+ if (option->type != type)
+ continue;
- for (tmp = option; tmp; tmp = tmp->next) {
- switch (type) {
+ switch (option->type) {
case IORESOURCE_IO:
- for (port = tmp->port; port; port = port->next) {
- if (port->min == start && port->size == size)
- return 1;
- }
+ port = &option->u.port;
+ if (port->min == start && port->size == size)
+ return 1;
break;
case IORESOURCE_MEM:
- for (mem = tmp->mem; mem; mem = mem->next) {
- if (mem->min == start && mem->size == size)
- return 1;
- }
+ mem = &option->u.mem;
+ if (mem->min == start && mem->size == size)
+ return 1;
break;
case IORESOURCE_IRQ:
- for (irq = tmp->irq; irq; irq = irq->next) {
- if (start < PNP_IRQ_NR &&
- test_bit(start, irq->map.bits))
- return 1;
- }
+ irq = &option->u.irq;
+ if (start < PNP_IRQ_NR &&
+ test_bit(start, irq->map.bits))
+ return 1;
break;
case IORESOURCE_DMA:
- for (dma = tmp->dma; dma; dma = dma->next) {
- if (dma->map & (1 << start))
- return 1;
- }
+ dma = &option->u.dma;
+ if (dma->map & (1 << start))
+ return 1;
break;
}
}
return 0;
}
-
-/*
- * Determine whether the specified resource is a possible configuration
- * for this device.
- */
-int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t start,
- resource_size_t size)
-{
- if (pnp_possible_option(dev->independent, type, start, size))
- return 1;
-
- if (pnp_possible_option(dev->dependent, type, start, size))
- return 1;
-
- return 0;
-}
EXPORT_SYMBOL(pnp_possible_config);
/* format is: pnp_reserve_irq=irq1[,irq2] .... */
* support.c - standard functions for the use of pnp protocol drivers
*
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
#include <linux/module.h>
}
#endif
}
+
+char *pnp_option_priority_name(struct pnp_option *option)
+{
+ switch (pnp_option_priority(option)) {
+ case PNP_RES_PRIORITY_PREFERRED:
+ return "preferred";
+ case PNP_RES_PRIORITY_ACCEPTABLE:
+ return "acceptable";
+ case PNP_RES_PRIORITY_FUNCTIONAL:
+ return "functional";
+ }
+ return "invalid";
+}
+
+void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option)
+{
+#ifdef DEBUG
+ char buf[128];
+ int len = 0, i;
+ struct pnp_port *port;
+ struct pnp_mem *mem;
+ struct pnp_irq *irq;
+ struct pnp_dma *dma;
+
+ if (pnp_option_is_dependent(option))
+ len += snprintf(buf + len, sizeof(buf) - len,
+ " dependent set %d (%s) ",
+ pnp_option_set(option),
+ pnp_option_priority_name(option));
+ else
+ len += snprintf(buf + len, sizeof(buf) - len, " independent ");
+
+ switch (option->type) {
+ case IORESOURCE_IO:
+ port = &option->u.port;
+ len += snprintf(buf + len, sizeof(buf) - len, "io min %#llx "
+ "max %#llx align %lld size %lld flags %#x",
+ (unsigned long long) port->min,
+ (unsigned long long) port->max,
+ (unsigned long long) port->align,
+ (unsigned long long) port->size, port->flags);
+ break;
+ case IORESOURCE_MEM:
+ mem = &option->u.mem;
+ len += snprintf(buf + len, sizeof(buf) - len, "mem min %#llx "
+ "max %#llx align %lld size %lld flags %#x",
+ (unsigned long long) mem->min,
+ (unsigned long long) mem->max,
+ (unsigned long long) mem->align,
+ (unsigned long long) mem->size, mem->flags);
+ break;
+ case IORESOURCE_IRQ:
+ irq = &option->u.irq;
+ len += snprintf(buf + len, sizeof(buf) - len, "irq");
+ if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
+ len += snprintf(buf + len, sizeof(buf) - len,
+ " <none>");
+ else {
+ for (i = 0; i < PNP_IRQ_NR; i++)
+ if (test_bit(i, irq->map.bits))
+ len += snprintf(buf + len,
+ sizeof(buf) - len,
+ " %d", i);
+ }
+ len += snprintf(buf + len, sizeof(buf) - len, " flags %#x",
+ irq->flags);
+ if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
+ len += snprintf(buf + len, sizeof(buf) - len,
+ " (optional)");
+ break;
+ case IORESOURCE_DMA:
+ dma = &option->u.dma;
+ len += snprintf(buf + len, sizeof(buf) - len, "dma");
+ if (!dma->map)
+ len += snprintf(buf + len, sizeof(buf) - len,
+ " <none>");
+ else {
+ for (i = 0; i < 8; i++)
+ if (dma->map & (1 << i))
+ len += snprintf(buf + len,
+ sizeof(buf) - len,
+ " %d", i);
+ }
+ len += snprintf(buf + len, sizeof(buf) - len, " (bitmask %#x) "
+ "flags %#x", dma->map, dma->flags);
+ break;
+ }
+ dev_dbg(&dev->dev, "%s\n", buf);
+#endif
+}
/*
* Linux Plug and Play Support
* Copyright by Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
#ifndef _LINUX_PNP_H
int active;
int capabilities;
- struct pnp_option *independent;
- struct pnp_option *dependent;
+ unsigned int num_dependent_sets;
struct list_head resources;
+ struct list_head options;
char name[PNP_NAME_LEN]; /* contains a human-readable name */
int flags; /* used by protocols */
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