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Commit d3899e3c authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://linux-pnp.bkbits.net/pnp-2.5 

into home.transmeta.com:/home/torvalds/v2.5/linux
parents 77518190 8397ceac
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Showing with 783 additions and 1362 deletions
drivers/pnp/base.h
View file @ d3899e3c
......@@ -4,29 +4,11 @@ void *pnp_alloc(long size);
int pnp_interface_attach_device(struct pnp_dev *dev);
void pnp_name_device(struct pnp_dev *dev);
void pnp_fixup_device(struct pnp_dev *dev);
void pnp_free_resources(struct pnp_resources *resources);
void pnp_free_option(struct pnp_option *option);
int __pnp_add_device(struct pnp_dev *dev);
void __pnp_remove_device(struct pnp_dev *dev);
/* resource conflict types */
#define CONFLICT_TYPE_NONE 0x0000 /* there are no conflicts, other than those in the link */
#define CONFLICT_TYPE_RESERVED 0x0001 /* the resource requested was reserved */
#define CONFLICT_TYPE_IN_USE 0x0002 /* there is a conflict because the resource is in use */
#define CONFLICT_TYPE_PCI 0x0004 /* there is a conflict with a pci device */
#define CONFLICT_TYPE_INVALID 0x0008 /* the resource requested is invalid */
#define CONFLICT_TYPE_INTERNAL 0x0010 /* resources within the device conflict with each ohter */
#define CONFLICT_TYPE_PNP_WARM 0x0020 /* there is a conflict with a pnp device that is active */
#define CONFLICT_TYPE_PNP_COLD 0x0040 /* there is a conflict with a pnp device that is disabled */
/* conflict search modes */
#define SEARCH_WARM 1 /* check for conflicts with active devices */
#define SEARCH_COLD 0 /* check for conflicts with disabled devices */
struct pnp_dev * pnp_check_port_conflicts(struct pnp_dev * dev, int idx, int mode);
int pnp_check_port(struct pnp_dev * dev, int idx);
struct pnp_dev * pnp_check_mem_conflicts(struct pnp_dev * dev, int idx, int mode);
int pnp_check_mem(struct pnp_dev * dev, int idx);
struct pnp_dev * pnp_check_irq_conflicts(struct pnp_dev * dev, int idx, int mode);
int pnp_check_irq(struct pnp_dev * dev, int idx);
struct pnp_dev * pnp_check_dma_conflicts(struct pnp_dev * dev, int idx, int mode);
int pnp_check_dma(struct pnp_dev * dev, int idx);
drivers/pnp/core.c
View file @ d3899e3c
......@@ -104,8 +104,8 @@ static void pnp_free_ids(struct pnp_dev *dev)
static void pnp_release_device(struct device *dmdev)
{
struct pnp_dev * dev = to_pnp_dev(dmdev);
if (dev->possible)
pnp_free_resources(dev->possible);
pnp_free_option(dev->independent);
pnp_free_option(dev->dependent);
pnp_free_ids(dev);
kfree(dev);
}
......@@ -122,7 +122,7 @@ int __pnp_add_device(struct pnp_dev *dev)
list_add_tail(&dev->global_list, &pnp_global);
list_add_tail(&dev->protocol_list, &dev->protocol->devices);
spin_unlock(&pnp_lock);
pnp_auto_config_dev(dev);
ret = device_register(&dev->dev);
if (ret == 0)
pnp_interface_attach_device(dev);
......
drivers/pnp/interface.c
View file @ d3899e3c
......@@ -168,7 +168,8 @@ static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem
pnp_printf(buffer, ", %s\n", s);
}
static void pnp_print_resources(pnp_info_buffer_t *buffer, char *space, struct pnp_resources *res, int dep)
static void pnp_print_option(pnp_info_buffer_t *buffer, char *space,
struct pnp_option *option, int dep)
{
char *s;
struct pnp_port *port;
......@@ -176,7 +177,8 @@ static void pnp_print_resources(pnp_info_buffer_t *buffer, char *space, struct p
struct pnp_dma *dma;
struct pnp_mem *mem;
switch (res->priority) {
if (dep) {
switch (option->priority) {
case PNP_RES_PRIORITY_PREFERRED:
s = "preferred";
break;
......@@ -189,36 +191,41 @@ static void pnp_print_resources(pnp_info_buffer_t *buffer, char *space, struct p
default:
s = "invalid";
}
if (dep > 0)
pnp_printf(buffer, "Dependent: %02i - Priority %s\n",dep, s);
for (port = res->port; port; port = port->next)
}
for (port = option->port; port; port = port->next)
pnp_print_port(buffer, space, port);
for (irq = res->irq; irq; irq = irq->next)
for (irq = option->irq; irq; irq = irq->next)
pnp_print_irq(buffer, space, irq);
for (dma = res->dma; dma; dma = dma->next)
for (dma = option->dma; dma; dma = dma->next)
pnp_print_dma(buffer, space, dma);
for (mem = res->mem; mem; mem = mem->next)
for (mem = option->mem; mem; mem = mem->next)
pnp_print_mem(buffer, space, mem);
}
static ssize_t pnp_show_possible_resources(struct device *dmdev, char *buf)
static ssize_t pnp_show_options(struct device *dmdev, char *buf)
{
struct pnp_dev *dev = to_pnp_dev(dmdev);
struct pnp_resources * res = dev->possible;
int ret, dep = 0;
struct pnp_option * independent = dev->independent;
struct pnp_option * dependent = dev->dependent;
int ret, dep = 1;
pnp_info_buffer_t *buffer = (pnp_info_buffer_t *)
pnp_alloc(sizeof(pnp_info_buffer_t));
if (!buffer)
return -ENOMEM;
buffer->len = PAGE_SIZE;
buffer->buffer = buf;
buffer->curr = buffer->buffer;
while (res){
if (dep == 0)
pnp_print_resources(buffer, "", res, dep);
else
pnp_print_resources(buffer, " ", res, dep);
res = res->dep;
if (independent)
pnp_print_option(buffer, "", independent, 0);
while (dependent){
pnp_print_option(buffer, " ", dependent, dep);
dependent = dependent->next;
dep++;
}
ret = (buffer->curr - buf);
......@@ -226,97 +233,8 @@ static ssize_t pnp_show_possible_resources(struct device *dmdev, char *buf)
return ret;
}
static DEVICE_ATTR(possible,S_IRUGO,pnp_show_possible_resources,NULL);
static void pnp_print_conflict_node(pnp_info_buffer_t *buffer, struct pnp_dev * dev)
{
if (!dev)
return;
pnp_printf(buffer, "'%s'.\n", dev->dev.bus_id);
}
static void pnp_print_conflict_desc(pnp_info_buffer_t *buffer, int conflict)
{
if (!conflict)
return;
pnp_printf(buffer, " Conflict Detected: %2x - ", conflict);
switch (conflict) {
case CONFLICT_TYPE_RESERVED:
pnp_printf(buffer, "manually reserved.\n");
break;
case CONFLICT_TYPE_IN_USE:
pnp_printf(buffer, "currently in use.\n");
break;
case CONFLICT_TYPE_PCI:
pnp_printf(buffer, "PCI device.\n");
break;
case CONFLICT_TYPE_INVALID:
pnp_printf(buffer, "invalid.\n");
break;
case CONFLICT_TYPE_INTERNAL:
pnp_printf(buffer, "another resource on this device.\n");
break;
static DEVICE_ATTR(options,S_IRUGO,pnp_show_options,NULL);
case CONFLICT_TYPE_PNP_WARM:
pnp_printf(buffer, "active PnP device ");
break;
case CONFLICT_TYPE_PNP_COLD:
pnp_printf(buffer, "disabled PnP device ");
break;
default:
pnp_printf(buffer, "Unknown conflict.\n");
break;
}
}
static void pnp_print_conflict(pnp_info_buffer_t *buffer, struct pnp_dev * dev, int idx, int type)
{
struct pnp_dev * cdev, * wdev = NULL;
int conflict;
switch (type) {
case IORESOURCE_IO:
conflict = pnp_check_port(dev, idx);
if (conflict == CONFLICT_TYPE_PNP_WARM)
wdev = pnp_check_port_conflicts(dev, idx, SEARCH_WARM);
cdev = pnp_check_port_conflicts(dev, idx, SEARCH_COLD);
break;
case IORESOURCE_MEM:
conflict = pnp_check_mem(dev, idx);
if (conflict == CONFLICT_TYPE_PNP_WARM)
wdev = pnp_check_mem_conflicts(dev, idx, SEARCH_WARM);
cdev = pnp_check_mem_conflicts(dev, idx, SEARCH_COLD);
break;
case IORESOURCE_IRQ:
conflict = pnp_check_irq(dev, idx);
if (conflict == CONFLICT_TYPE_PNP_WARM)
wdev = pnp_check_irq_conflicts(dev, idx, SEARCH_WARM);
cdev = pnp_check_irq_conflicts(dev, idx, SEARCH_COLD);
break;
case IORESOURCE_DMA:
conflict = pnp_check_dma(dev, idx);
if (conflict == CONFLICT_TYPE_PNP_WARM)
wdev = pnp_check_dma_conflicts(dev, idx, SEARCH_WARM);
cdev = pnp_check_dma_conflicts(dev, idx, SEARCH_COLD);
break;
default:
return;
}
pnp_print_conflict_desc(buffer, conflict);
if (wdev)
pnp_print_conflict_node(buffer, wdev);
if (cdev) {
pnp_print_conflict_desc(buffer, CONFLICT_TYPE_PNP_COLD);
pnp_print_conflict_node(buffer, cdev);
}
}
static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
{
......@@ -332,12 +250,6 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
buffer->buffer = buf;
buffer->curr = buffer->buffer;
pnp_printf(buffer,"mode = ");
if (dev->config_mode & PNP_CONFIG_MANUAL)
pnp_printf(buffer,"manual\n");
else
pnp_printf(buffer,"auto\n");
pnp_printf(buffer,"state = ");
if (dev->active)
pnp_printf(buffer,"active\n");
......@@ -350,7 +262,6 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
pnp_printf(buffer," 0x%lx-0x%lx \n",
pnp_port_start(dev, i),
pnp_port_end(dev, i));
pnp_print_conflict(buffer, dev, i, IORESOURCE_IO);
}
}
for (i = 0; i < PNP_MAX_MEM; i++) {
......@@ -359,21 +270,18 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
pnp_printf(buffer," 0x%lx-0x%lx \n",
pnp_mem_start(dev, i),
pnp_mem_end(dev, i));
pnp_print_conflict(buffer, dev, i, IORESOURCE_MEM);
}
}
for (i = 0; i < PNP_MAX_IRQ; i++) {
if (pnp_irq_valid(dev, i)) {
pnp_printf(buffer,"irq");
pnp_printf(buffer," %ld \n", pnp_irq(dev, i));
pnp_print_conflict(buffer, dev, i, IORESOURCE_IRQ);
}
}
for (i = 0; i < PNP_MAX_DMA; i++) {
if (pnp_dma_valid(dev, i)) {
pnp_printf(buffer,"dma");
pnp_printf(buffer," %ld \n", pnp_dma(dev, i));
pnp_print_conflict(buffer, dev, i, IORESOURCE_DMA);
}
}
ret = (buffer->curr - buf);
......@@ -381,7 +289,7 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
return ret;
}
extern int pnp_resolve_conflicts(struct pnp_dev *dev);
extern struct semaphore pnp_res_mutex;
static ssize_t
pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count)
......@@ -390,6 +298,12 @@ pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count
char *buf = (void *)ubuf;
int retval = 0;
if (dev->status & PNP_ATTACHED) {
retval = -EBUSY;
pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id);
goto done;
}
while (isspace(*buf))
++buf;
if (!strnicmp(buf,"disable",7)) {
......@@ -400,41 +314,30 @@ pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count
retval = pnp_activate_dev(dev);
goto done;
}
if (!strnicmp(buf,"reset",5)) {
if (!dev->active)
goto done;
retval = pnp_disable_dev(dev);
if (retval)
if (!strnicmp(buf,"fill",4)) {
if (dev->active)
goto done;
retval = pnp_activate_dev(dev);
retval = pnp_auto_config_dev(dev);
goto done;
}
if (!strnicmp(buf,"auto",4)) {
if (dev->active)
goto done;
pnp_init_resources(&dev->res);
retval = pnp_auto_config_dev(dev);
goto done;
}
if (!strnicmp(buf,"clear",5)) {
if (dev->active)
goto done;
spin_lock(&pnp_lock);
dev->config_mode = PNP_CONFIG_MANUAL;
pnp_init_resource_table(&dev->res);
if (dev->rule)
dev->rule->depnum = 0;
spin_unlock(&pnp_lock);
goto done;
}
if (!strnicmp(buf,"resolve",7)) {
retval = pnp_resolve_conflicts(dev);
pnp_init_resources(&dev->res);
goto done;
}
if (!strnicmp(buf,"get",3)) {
spin_lock(&pnp_lock);
down(&pnp_res_mutex);
if (pnp_can_read(dev))
dev->protocol->get(dev, &dev->res);
spin_unlock(&pnp_lock);
up(&pnp_res_mutex);
goto done;
}
if (!strnicmp(buf,"set",3)) {
......@@ -442,9 +345,8 @@ pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count
if (dev->active)
goto done;
buf += 3;
spin_lock(&pnp_lock);
dev->config_mode = PNP_CONFIG_MANUAL;
pnp_init_resource_table(&dev->res);
pnp_init_resources(&dev->res);
down(&pnp_res_mutex);
while (1) {
while (isspace(*buf))
++buf;
......@@ -514,7 +416,7 @@ pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count
}
break;
}
spin_unlock(&pnp_lock);
up(&pnp_res_mutex);
goto done;
}
done:
......@@ -543,7 +445,7 @@ static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
int pnp_interface_attach_device(struct pnp_dev *dev)
{
device_create_file(&dev->dev,&dev_attr_possible);
device_create_file(&dev->dev,&dev_attr_options);
device_create_file(&dev->dev,&dev_attr_resources);
device_create_file(&dev->dev,&dev_attr_id);
return 0;
......
drivers/pnp/isapnp/core.c
View file @ d3899e3c
......@@ -31,6 +31,7 @@
* 2002-06-06 Made the use of dma channel 0 configurable
* Gerald Teschl <gerald.teschl@univie.ac.at>
* 2002-10-06 Ported to PnP Layer - Adam Belay <ambx1@neo.rr.com>
* 2003-08-11 Resource Management Updates - Adam Belay <ambx1@neo.rr.com>
*/
#include <linux/config.h>
......@@ -54,7 +55,6 @@
int isapnp_disable; /* Disable ISA PnP */
int isapnp_rdp; /* Read Data Port */
int isapnp_reset = 1; /* reset all PnP cards (deactivate) */
int isapnp_skip_pci_scan; /* skip PCI resource scanning */
int isapnp_verbose = 1; /* verbose mode */
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
......@@ -66,8 +66,6 @@ MODULE_PARM_DESC(isapnp_rdp, "ISA Plug & Play read data port");
MODULE_PARM(isapnp_reset, "i");
MODULE_PARM_DESC(isapnp_reset, "ISA Plug & Play reset all cards");
MODULE_PARM(isapnp_allow_dma0, "i");
MODULE_PARM(isapnp_skip_pci_scan, "i");
MODULE_PARM_DESC(isapnp_skip_pci_scan, "ISA Plug & Play skip PCI resource scanning");
MODULE_PARM(isapnp_verbose, "i");
MODULE_PARM_DESC(isapnp_verbose, "ISA Plug & Play verbose mode");
MODULE_LICENSE("GPL");
......@@ -460,6 +458,7 @@ static struct pnp_dev * __init isapnp_parse_device(struct pnp_card *card, int si
dev->capabilities |= PNP_READ;
dev->capabilities |= PNP_WRITE;
dev->capabilities |= PNP_DISABLE;
pnp_init_resources(&dev->res);
return dev;
}
......@@ -468,8 +467,8 @@ static struct pnp_dev * __init isapnp_parse_device(struct pnp_card *card, int si
* Add IRQ resource to resources list.
*/
static void __init isapnp_add_irq_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_irq_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[3];
struct pnp_irq *irq;
......@@ -483,7 +482,7 @@ static void __init isapnp_add_irq_resource(struct pnp_dev *dev,
irq->flags = tmp[2];
else
irq->flags = IORESOURCE_IRQ_HIGHEDGE;
pnp_add_irq_resource(dev, depnum, irq);
pnp_register_irq_resource(option, irq);
return;
}
......@@ -491,8 +490,8 @@ static void __init isapnp_add_irq_resource(struct pnp_dev *dev,
* Add DMA resource to resources list.
*/
static void __init isapnp_add_dma_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_dma_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[2];
struct pnp_dma *dma;
......@@ -503,7 +502,7 @@ static void __init isapnp_add_dma_resource(struct pnp_dev *dev,
return;
dma->map = tmp[0];
dma->flags = tmp[1];
pnp_add_dma_resource(dev, depnum, dma);
pnp_register_dma_resource(option, dma);
return;
}
......@@ -511,8 +510,8 @@ static void __init isapnp_add_dma_resource(struct pnp_dev *dev,
* Add port resource to resources list.
*/
static void __init isapnp_add_port_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_port_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[7];
struct pnp_port *port;
......@@ -526,7 +525,7 @@ static void __init isapnp_add_port_resource(struct pnp_dev *dev,
port->align = tmp[5];
port->size = tmp[6];
port->flags = tmp[0] ? PNP_PORT_FLAG_16BITADDR : 0;
pnp_add_port_resource(dev,depnum,port);
pnp_register_port_resource(option,port);
return;
}
......@@ -534,8 +533,8 @@ static void __init isapnp_add_port_resource(struct pnp_dev *dev,
* Add fixed port resource to resources list.
*/
static void __init isapnp_add_fixed_port_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_fixed_port_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[3];
struct pnp_port *port;
......@@ -548,7 +547,7 @@ static void __init isapnp_add_fixed_port_resource(struct pnp_dev *dev,
port->size = tmp[2];
port->align = 0;
port->flags = PNP_PORT_FLAG_FIXED;
pnp_add_port_resource(dev,depnum,port);
pnp_register_port_resource(option,port);
return;
}
......@@ -556,8 +555,8 @@ static void __init isapnp_add_fixed_port_resource(struct pnp_dev *dev,
* Add memory resource to resources list.
*/
static void __init isapnp_add_mem_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_mem_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[9];
struct pnp_mem *mem;
......@@ -571,7 +570,7 @@ static void __init isapnp_add_mem_resource(struct pnp_dev *dev,
mem->align = (tmp[6] << 8) | tmp[5];
mem->size = ((tmp[8] << 8) | tmp[7]) << 8;
mem->flags = tmp[0];
pnp_add_mem_resource(dev,depnum,mem);
pnp_register_mem_resource(option,mem);
return;
}
......@@ -579,8 +578,8 @@ static void __init isapnp_add_mem_resource(struct pnp_dev *dev,
* Add 32-bit memory resource to resources list.
*/
static void __init isapnp_add_mem32_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_mem32_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[17];
struct pnp_mem *mem;
......@@ -594,15 +593,15 @@ static void __init isapnp_add_mem32_resource(struct pnp_dev *dev,
mem->align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9];
mem->size = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13];
mem->flags = tmp[0];
pnp_add_mem_resource(dev,depnum,mem);
pnp_register_mem_resource(option,mem);
}
/*
* Add 32-bit fixed memory resource to resources list.
*/
static void __init isapnp_add_fixed_mem32_resource(struct pnp_dev *dev,
int depnum, int size)
static void __init isapnp_parse_fixed_mem32_resource(struct pnp_option *option,
int size)
{
unsigned char tmp[9];
struct pnp_mem *mem;
......@@ -615,7 +614,7 @@ static void __init isapnp_add_fixed_mem32_resource(struct pnp_dev *dev,
mem->size = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
mem->align = 0;
mem->flags = tmp[0];
pnp_add_mem_resource(dev,depnum,mem);
pnp_register_mem_resource(option,mem);
}
/*
......@@ -644,14 +643,17 @@ isapnp_parse_name(char *name, unsigned int name_max, unsigned short *size)
static int __init isapnp_create_device(struct pnp_card *card,
unsigned short size)
{
int number = 0, skip = 0, depnum = 0, dependent = 0, compat = 0;
int number = 0, skip = 0, priority = 0, compat = 0;
unsigned char type, tmp[17];
struct pnp_option *option;
struct pnp_dev *dev;
if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
return 1;
if (pnp_build_resource(dev, 0) == NULL)
option = pnp_register_independent_option(dev);
if (!option)
return 1;
pnp_add_card_device(card,dev);
while (1) {
if (isapnp_read_tag(&type, &size)<0)
return 1;
......@@ -662,15 +664,16 @@ static int __init isapnp_create_device(struct pnp_card *card,
if (size >= 5 && size <= 6) {
if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
return 1;
pnp_build_resource(dev,0);
pnp_add_card_device(card,dev);
size = 0;
skip = 0;
option = pnp_register_independent_option(dev);
if (!option)
return 1;
pnp_add_card_device(card,dev);
} else {
skip = 1;
}
dependent = 0;
depnum = 0;
priority = 0;
compat = 0;
break;
case _STAG_COMPATDEVID:
......@@ -684,43 +687,43 @@ static int __init isapnp_create_device(struct pnp_card *card,
case _STAG_IRQ:
if (size < 2 || size > 3)
goto __skip;
isapnp_add_irq_resource(dev, depnum, size);
isapnp_parse_irq_resource(option, size);
size = 0;
break;
case _STAG_DMA:
if (size != 2)
goto __skip;
isapnp_add_dma_resource(dev, depnum, size);
isapnp_parse_dma_resource(option, size);
size = 0;
break;
case _STAG_STARTDEP:
if (size > 1)
goto __skip;
dependent = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
if (size > 0) {
isapnp_peek(tmp, size);
dependent = 0x100 | tmp[0];
priority = 0x100 | tmp[0];
size = 0;
}
pnp_build_resource(dev,dependent);
depnum = pnp_get_max_depnum(dev);
option = pnp_register_dependent_option(dev,priority);
if (!option)
return 1;
break;
case _STAG_ENDDEP:
if (size != 0)
goto __skip;
dependent = 0;
depnum = 0;
priority = 0;
break;
case _STAG_IOPORT:
if (size != 7)
goto __skip;
isapnp_add_port_resource(dev, depnum, size);
isapnp_parse_port_resource(option, size);
size = 0;
break;
case _STAG_FIXEDIO:
if (size != 3)
goto __skip;
isapnp_add_fixed_port_resource(dev, depnum, size);
isapnp_parse_fixed_port_resource(option, size);
size = 0;
break;
case _STAG_VENDOR:
......@@ -728,7 +731,7 @@ static int __init isapnp_create_device(struct pnp_card *card,
case _LTAG_MEMRANGE:
if (size != 9)
goto __skip;
isapnp_add_mem_resource(dev, depnum, size);
isapnp_parse_mem_resource(option, size);
size = 0;
break;
case _LTAG_ANSISTR:
......@@ -743,13 +746,13 @@ static int __init isapnp_create_device(struct pnp_card *card,
case _LTAG_MEM32RANGE:
if (size != 17)
goto __skip;
isapnp_add_mem32_resource(dev, depnum, size);
isapnp_parse_mem32_resource(option, size);
size = 0;
break;
case _LTAG_FIXEDMEM32RANGE:
if (size != 9)
goto __skip;
isapnp_add_fixed_mem32_resource(dev, depnum, size);
isapnp_parse_fixed_mem32_resource(option, size);
size = 0;
break;
case _STAG_END:
......@@ -859,63 +862,6 @@ static void isapnp_parse_card_id(struct pnp_card * card, unsigned short vendor,
pnp_add_card_id(id,card);
}
static int isapnp_parse_current_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
{
int tmp, ret;
struct pnp_rule_table rule;
if (dev->rule)
rule = *dev->rule;
else {
if (!pnp_generate_rule(dev,1,&rule))
return -EINVAL;
}
dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
if (dev->active) {
for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1));
if (!ret)
continue;
res->port_resource[tmp].start = ret;
if (rule.port[tmp])
res->port_resource[tmp].end = ret + rule.port[tmp]->size - 1;
else
res->port_resource[tmp].end = ret + 1; /* all we can do is assume 1 :-( */
res->port_resource[tmp].flags = IORESOURCE_IO;
}
for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
ret = isapnp_read_dword(ISAPNP_CFG_MEM + (tmp << 3));
if (!ret)
continue;
res->mem_resource[tmp].start = ret;
if (rule.mem[tmp])
res->mem_resource[tmp].end = ret + rule.mem[tmp]->size - 1;
else
res->mem_resource[tmp].end = ret + 1; /* all we can do is assume 1 :-( */
res->mem_resource[tmp].flags = IORESOURCE_MEM;
}
for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
ret = (isapnp_read_word(ISAPNP_CFG_IRQ + (tmp << 1)) >> 8);
if (!ret)
continue;
res->irq_resource[tmp].start = res->irq_resource[tmp].end = ret;
res->irq_resource[tmp].flags = IORESOURCE_IRQ;
}
for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
ret = isapnp_read_byte(ISAPNP_CFG_DMA + tmp);
if (ret == 4)
continue;
if (rule.dma[tmp]) { /* some isapnp systems forget to set this to 4 so we have to check */
res->dma_resource[tmp].start = res->dma_resource[tmp].end = ret;
res->dma_resource[tmp].flags = IORESOURCE_DMA;
}
}
}
return 0;
}
/*
* Build device list for all present ISA PnP devices.
*/
......@@ -925,7 +871,6 @@ static int __init isapnp_build_device_list(void)
int csn;
unsigned char header[9], checksum;
struct pnp_card *card;
struct pnp_dev *dev;
isapnp_wait();
isapnp_key();
......@@ -959,13 +904,6 @@ static int __init isapnp_build_device_list(void)
card->checksum = isapnp_checksum_value;
card->protocol = &isapnp_protocol;
/* read the current resource data */
card_for_each_dev(card,dev) {
isapnp_device(dev->number);
pnp_init_resource_table(&dev->res);
isapnp_parse_current_resources(dev, &dev->res);
}
pnp_add_card(card);
}
isapnp_wait();
......@@ -1041,12 +979,50 @@ EXPORT_SYMBOL(isapnp_write_dword);
EXPORT_SYMBOL(isapnp_wake);
EXPORT_SYMBOL(isapnp_device);
static int isapnp_read_resources(struct pnp_dev *dev, struct pnp_resource_table *res)
{
int tmp, ret;
dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
if (dev->active) {
for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1));
if (!ret)
continue;
res->port_resource[tmp].start = ret;
res->port_resource[tmp].flags = IORESOURCE_IO;
}
for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
ret = isapnp_read_dword(ISAPNP_CFG_MEM + (tmp << 3));
if (!ret)
continue;
res->mem_resource[tmp].start = ret;
res->mem_resource[tmp].flags = IORESOURCE_MEM;
}
for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
ret = (isapnp_read_word(ISAPNP_CFG_IRQ + (tmp << 1)) >> 8);
if (!ret)
continue;
res->irq_resource[tmp].start = res->irq_resource[tmp].end = ret;
res->irq_resource[tmp].flags = IORESOURCE_IRQ;
}
for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
ret = isapnp_read_byte(ISAPNP_CFG_DMA + tmp);
if (ret == 4)
continue;
res->dma_resource[tmp].start = res->dma_resource[tmp].end = ret;
res->dma_resource[tmp].flags = IORESOURCE_DMA;
}
}
return 0;
}
static int isapnp_get_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
{
int ret;
pnp_init_resource_table(res);
pnp_init_resources(res);
isapnp_cfg_begin(dev->card->number, dev->number);
ret = isapnp_parse_current_resources(dev, res);
ret = isapnp_read_resources(dev, res);
isapnp_cfg_end();
return ret;
}
......@@ -1196,7 +1172,6 @@ static int __init isapnp_setup_isapnp(char *str)
{
(void)((get_option(&str,&isapnp_rdp) == 2) &&
(get_option(&str,&isapnp_reset) == 2) &&
(get_option(&str,&isapnp_skip_pci_scan) == 2) &&
(get_option(&str,&isapnp_verbose) == 2));
return 1;
}
......
drivers/pnp/manager.c
View file @ d3899e3c
/*
* manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices
*
* based on isapnp.c resource management (c) Jaroslav Kysela <perex@suse.cz>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
*
*/
......@@ -20,551 +21,341 @@
#include <linux/pnp.h>
#include "base.h"
DECLARE_MUTEX(pnp_res_mutex);
int pnp_max_moves = 4;
static int pnp_next_port(struct pnp_dev * dev, int idx)
static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
{
struct pnp_port *port;
unsigned long *start, *end, *flags;
if (!dev || idx < 0 || idx >= PNP_MAX_PORT)
return 0;
port = dev->rule->port[idx];
if (!port)
if (!dev || !rule)
return -EINVAL;
if (idx >= PNP_MAX_PORT) {
pnp_err("More than 4 ports is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
/* check if this resource has been manually set, if so skip */
if (!(dev->res.port_resource[idx].flags & IORESOURCE_AUTO))
return 1;
start = &dev->res.port_resource[idx].start;
end = &dev->res.port_resource[idx].end;
flags = &dev->res.port_resource[idx].flags;
/* set the initial values if this is the first time */
if (*start == 0) {
*start = port->min;
*end = *start + port->size - 1;
*flags = port->flags | IORESOURCE_IO;
if (!pnp_check_port(dev, idx))
return 1;
}
/* set the initial values */
*start = rule->min;
*end = *start + rule->size - 1;
*flags = *flags | rule->flags | IORESOURCE_IO;
/* run through until pnp_check_port is happy */
do {
*start += port->align;
*end = *start + port->size - 1;
if (*start > port->max || !port->align)
while (!pnp_check_port(dev, idx)) {
*start += rule->align;
*end = *start + rule->size - 1;
if (*start > rule->max || !rule->align)
return 0;
} while (pnp_check_port(dev, idx));
}
return 1;
}
static int pnp_next_mem(struct pnp_dev * dev, int idx)
static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
{
struct pnp_mem *mem;
unsigned long *start, *end, *flags;
if (!dev || idx < 0 || idx >= PNP_MAX_MEM)
return 0;
mem = dev->rule->mem[idx];
if (!mem)
if (!dev || !rule)
return -EINVAL;
if (idx >= PNP_MAX_MEM) {
pnp_err("More than 8 mems is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
/* check if this resource has been manually set, if so skip */
if (!(dev->res.mem_resource[idx].flags & IORESOURCE_AUTO))
return 1;
start = &dev->res.mem_resource[idx].start;
end = &dev->res.mem_resource[idx].end;
flags = &dev->res.mem_resource[idx].flags;
/* set the initial values if this is the first time */
if (*start == 0) {
*start = mem->min;
*end = *start + mem->size -1;
*flags = mem->flags | IORESOURCE_MEM;
if (!(mem->flags & IORESOURCE_MEM_WRITEABLE))
/* set the initial values */
*start = rule->min;
*end = *start + rule->size -1;
*flags = *flags | rule->flags | IORESOURCE_MEM;
/* convert pnp flags to standard Linux flags */
if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
*flags |= IORESOURCE_READONLY;
if (mem->flags & IORESOURCE_MEM_CACHEABLE)
if (rule->flags & IORESOURCE_MEM_CACHEABLE)
*flags |= IORESOURCE_CACHEABLE;
if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
if (rule->flags & IORESOURCE_MEM_RANGELENGTH)
*flags |= IORESOURCE_RANGELENGTH;
if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
if (rule->flags & IORESOURCE_MEM_SHADOWABLE)
*flags |= IORESOURCE_SHADOWABLE;
if (!pnp_check_mem(dev, idx))
return 1;
}
/* run through until pnp_check_mem is happy */
do {
*start += mem->align;
*end = *start + mem->size - 1;
if (*start > mem->max || !mem->align)
while (!pnp_check_mem(dev, idx)) {
*start += rule->align;
*end = *start + rule->size - 1;
if (*start > rule->max || !rule->align)
return 0;
} while (pnp_check_mem(dev, idx));
}
return 1;
}
static int pnp_next_irq(struct pnp_dev * dev, int idx)
static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
{
struct pnp_irq *irq;
unsigned long *start, *end, *flags;
int i, mask;
if (!dev || idx < 0 || idx >= PNP_MAX_IRQ)
return 0;
irq = dev->rule->irq[idx];
if (!irq)
return 1;
int i;
start = &dev->res.irq_resource[idx].start;
end = &dev->res.irq_resource[idx].end;
flags = &dev->res.irq_resource[idx].flags;
/* IRQ priority: this table is good for i386 */
static unsigned short xtab[16] = {
5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
};
/* set the initial values if this is the first time */
if (*start == -1) {
*start = *end = 0;
*flags = irq->flags | IORESOURCE_IRQ;
if (!pnp_check_irq(dev, idx))
return 1;
}
mask = irq->map;
for (i = *start + 1; i < 16; i++)
{
if(mask>>i & 0x01) {
*start = *end = i;
if(!pnp_check_irq(dev, idx))
return 1;
}
}
return 0;
}
static int pnp_next_dma(struct pnp_dev * dev, int idx)
{
struct pnp_dma *dma;
unsigned long *start, *end, *flags;
int i, mask;
if (!dev || idx < 0 || idx >= PNP_MAX_DMA)
if (!dev || !rule)
return -EINVAL;
dma = dev->rule->dma[idx];
if (!dma)
return 1;
start = &dev->res.dma_resource[idx].start;
end = &dev->res.dma_resource[idx].end;
flags = &dev->res.dma_resource[idx].flags;
/* set the initial values if this is the first time */
if (*start == -1) {
*start = *end = 0;
*flags = dma->flags | IORESOURCE_DMA;
if (!pnp_check_dma(dev, idx))
if (idx >= PNP_MAX_IRQ) {
pnp_err("More than 2 irqs is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
mask = dma->map;
for (i = *start + 1; i < 8; i++)
{
if(mask>>i & 0x01) {
*start = *end = i;
if(!pnp_check_dma(dev, idx))
/* check if this resource has been manually set, if so skip */
if (!(dev->res.irq_resource[idx].flags & IORESOURCE_AUTO))
return 1;
}
}
return 0;
}
static int pnp_next_rule(struct pnp_dev *dev)
{
int depnum = dev->rule->depnum;
int max = pnp_get_max_depnum(dev);
int priority = PNP_RES_PRIORITY_PREFERRED;
if (depnum < 0)
return 0;
if (max == 0) {
if (pnp_generate_rule(dev, 0, dev->rule)) {
dev->rule->depnum = -1;
return 1;
}
}
start = &dev->res.irq_resource[idx].start;
end = &dev->res.irq_resource[idx].end;
flags = &dev->res.irq_resource[idx].flags;
if(depnum > 0) {
struct pnp_resources * res = pnp_find_resources(dev, depnum);
priority = res->priority;
}
/* set the initial values */
*flags = *flags | rule->flags | IORESOURCE_IRQ;
for (; priority <= PNP_RES_PRIORITY_FUNCTIONAL; priority++, depnum = 0) {
depnum += 1;
for (; depnum <= max; depnum++) {
struct pnp_resources * res = pnp_find_resources(dev, depnum);
if (res->priority == priority) {
if(pnp_generate_rule(dev, depnum, dev->rule)) {
dev->rule->depnum = depnum;
for (i = 0; i < 16; i++) {
if(rule->map & (1<<xtab[i])) {
*start = *end = xtab[i];
if(pnp_check_irq(dev, idx))
return 1;
}
}
}
}
return 0;
}
struct pnp_change {
struct list_head change_list;
struct list_head changes;
struct pnp_resource_table res_bak;
struct pnp_rule_table rule_bak;
struct pnp_dev * dev;
};
static void pnp_free_changes(struct pnp_change * parent)
{
struct list_head * pos, * temp;
list_for_each_safe(pos, temp, &parent->changes) {
struct pnp_change * change = list_entry(pos, struct pnp_change, change_list);
list_del(&change->change_list);
kfree(change);
}
}
static void pnp_undo_changes(struct pnp_change * parent)
{
struct list_head * pos, * temp;
list_for_each_safe(pos, temp, &parent->changes) {
struct pnp_change * change = list_entry(pos, struct pnp_change, change_list);
*change->dev->rule = change->rule_bak;
change->dev->res = change->res_bak;
list_del(&change->change_list);
kfree(change);
}
}
static struct pnp_change * pnp_add_change(struct pnp_change * parent, struct pnp_dev * dev)
{
struct pnp_change * change = pnp_alloc(sizeof(struct pnp_change));
if (!change)
return NULL;
change->res_bak = dev->res;
change->rule_bak = *dev->rule;
change->dev = dev;
INIT_LIST_HEAD(&change->changes);
if (parent)
list_add(&change->change_list, &parent->changes);
return change;
}
static void pnp_commit_changes(struct pnp_change * parent, struct pnp_change * change)
{
/* check if it's the root change */
if (!parent)
return;
if (!list_empty(&change->changes))
list_splice_init(&change->changes, &parent->changes);
}
static int pnp_next_config(struct pnp_dev * dev, int move, struct pnp_change * parent);
static int pnp_next_request(struct pnp_dev * dev, int move, struct pnp_change * parent, struct pnp_change * change)
static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
{
unsigned long *start, *end, *flags;
int i;
struct pnp_dev * cdev;
for (i = 0; i < PNP_MAX_PORT; i++) {
if (dev->res.port_resource[i].start == 0
|| pnp_check_port_conflicts(dev,i,SEARCH_WARM)) {
if (!pnp_next_port(dev,i))
return 0;
}
do {
cdev = pnp_check_port_conflicts(dev,i,SEARCH_COLD);
if (cdev && (!move || !pnp_next_config(cdev,move,change))) {
pnp_undo_changes(change);
if (!pnp_next_port(dev,i))
return 0;
}
} while (cdev);
pnp_commit_changes(parent, change);
}
for (i = 0; i < PNP_MAX_MEM; i++) {
if (dev->res.mem_resource[i].start == 0
|| pnp_check_mem_conflicts(dev,i,SEARCH_WARM)) {
if (!pnp_next_mem(dev,i))
return 0;
}
do {
cdev = pnp_check_mem_conflicts(dev,i,SEARCH_COLD);
if (cdev && (!move || !pnp_next_config(cdev,move,change))) {
pnp_undo_changes(change);
if (!pnp_next_mem(dev,i))
return 0;
}
} while (cdev);
pnp_commit_changes(parent, change);
}
for (i = 0; i < PNP_MAX_IRQ; i++) {
if (dev->res.irq_resource[i].start == -1
|| pnp_check_irq_conflicts(dev,i,SEARCH_WARM)) {
if (!pnp_next_irq(dev,i))
return 0;
}
do {
cdev = pnp_check_irq_conflicts(dev,i,SEARCH_COLD);
if (cdev && (!move || !pnp_next_config(cdev,move,change))) {
pnp_undo_changes(change);
if (!pnp_next_irq(dev,i))
return 0;
}
} while (cdev);
pnp_commit_changes(parent, change);
}
for (i = 0; i < PNP_MAX_DMA; i++) {
if (dev->res.dma_resource[i].start == -1
|| pnp_check_dma_conflicts(dev,i,SEARCH_WARM)) {
if (!pnp_next_dma(dev,i))
return 0;
}
do {
cdev = pnp_check_dma_conflicts(dev,i,SEARCH_COLD);
if (cdev && (!move || !pnp_next_config(cdev,move,change))) {
pnp_undo_changes(change);
if (!pnp_next_dma(dev,i))
return 0;
}
} while (cdev);
pnp_commit_changes(parent, change);
}
return 1;
}
/* DMA priority: this table is good for i386 */
static unsigned short xtab[8] = {
1, 3, 5, 6, 7, 0, 2, 4
};
static int pnp_next_config(struct pnp_dev * dev, int move, struct pnp_change * parent)
{
struct pnp_change * change;
move--;
if (!dev->rule)
return 0;
change = pnp_add_change(parent,dev);
if (!change)
return 0;
if (!pnp_can_configure(dev))
goto fail;
if (!dev->rule->depnum) {
if (!pnp_next_rule(dev))
goto fail;
}
while (!pnp_next_request(dev, move, parent, change)) {
if(!pnp_next_rule(dev))
goto fail;
pnp_init_resource_table(&dev->res);
}
if (!parent) {
pnp_free_changes(change);
kfree(change);
}
return 1;
fail:
if (!parent)
kfree(change);
return 0;
}
if (!dev || !rule)
return -EINVAL;
/* this advanced algorithm will shuffle other configs to make room and ensure that the most possible devices have configs */
static int pnp_advanced_config(struct pnp_dev * dev)
{
int move;
/* if the device cannot be configured skip it */
if (!pnp_can_configure(dev))
if (idx >= PNP_MAX_DMA) {
pnp_err("More than 2 dmas is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
if (!dev->rule) {
dev->rule = pnp_alloc(sizeof(struct pnp_rule_table));
if (!dev->rule)
return -ENOMEM;
}
spin_lock(&pnp_lock);
for (move = 1; move <= pnp_max_moves; move++) {
dev->rule->depnum = 0;
pnp_init_resource_table(&dev->res);
if (pnp_next_config(dev,move,NULL)) {
spin_unlock(&pnp_lock);
/* check if this resource has been manually set, if so skip */
if (!(dev->res.dma_resource[idx].flags & IORESOURCE_AUTO))
return 1;
}
}
pnp_init_resource_table(&dev->res);
dev->rule->depnum = 0;
spin_unlock(&pnp_lock);
pnp_err("res: Unable to resolve resource conflicts for the device '%s', some devices may not be usable.", dev->dev.bus_id);
return 0;
}
start = &dev->res.dma_resource[idx].start;
end = &dev->res.dma_resource[idx].end;
flags = &dev->res.dma_resource[idx].flags;
int pnp_resolve_conflicts(struct pnp_dev *dev)
{
int i;
struct pnp_dev * cdev;
/* set the initial values */
*flags = *flags | rule->flags | IORESOURCE_DMA;
for (i = 0; i < PNP_MAX_PORT; i++)
{
do {
cdev = pnp_check_port_conflicts(dev,i,SEARCH_COLD);
if (cdev)
pnp_advanced_config(cdev);
} while (cdev);
}
for (i = 0; i < PNP_MAX_MEM; i++)
{
do {
cdev = pnp_check_mem_conflicts(dev,i,SEARCH_COLD);
if (cdev)
pnp_advanced_config(cdev);
} while (cdev);
}
for (i = 0; i < PNP_MAX_IRQ; i++)
{
do {
cdev = pnp_check_irq_conflicts(dev,i,SEARCH_COLD);
if (cdev)
pnp_advanced_config(cdev);
} while (cdev);
}
for (i = 0; i < PNP_MAX_DMA; i++)
{
do {
cdev = pnp_check_dma_conflicts(dev,i,SEARCH_COLD);
if (cdev)
pnp_advanced_config(cdev);
} while (cdev);
}
for (i = 0; i < 8; i++) {
if(rule->map & (1<<xtab[i])) {
*start = *end = xtab[i];
if(pnp_check_dma(dev, idx))
return 1;
}
/* this is a much faster algorithm but it may not leave resources for other devices to use */
static int pnp_simple_config(struct pnp_dev * dev)
{
int i;
spin_lock(&pnp_lock);
if (dev->active) {
spin_unlock(&pnp_lock);
return 1;
}
if (!dev->rule) {
dev->rule = pnp_alloc(sizeof(struct pnp_rule_table));
if (!dev->rule) {
spin_unlock(&pnp_lock);
return -ENOMEM;
}
}
dev->rule->depnum = 0;
pnp_init_resource_table(&dev->res);
while (pnp_next_rule(dev)) {
for (i = 0; i < PNP_MAX_PORT; i++) {
if (!pnp_next_port(dev,i))
continue;
}
for (i = 0; i < PNP_MAX_MEM; i++) {
if (!pnp_next_mem(dev,i))
continue;
}
for (i = 0; i < PNP_MAX_IRQ; i++) {
if (!pnp_next_irq(dev,i))
continue;
}
for (i = 0; i < PNP_MAX_DMA; i++) {
if (!pnp_next_dma(dev,i))
continue;
}
goto done;
}
pnp_init_resource_table(&dev->res);
dev->rule->depnum = 0;
spin_unlock(&pnp_lock);
return 0;
done:
pnp_resolve_conflicts(dev); /* this is required or we will break the advanced configs */
return 1;
}
static int pnp_compare_resources(struct pnp_resource_table * resa, struct pnp_resource_table * resb)
/**
* pnp_init_resources - Resets a resource table to default values.
* @table: pointer to the desired resource table
*
*/
void pnp_init_resources(struct pnp_resource_table *table)
{
int idx;
down(&pnp_res_mutex);
for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
if (resa->irq_resource[idx].start != resb->irq_resource[idx].start)
return 1;
table->irq_resource[idx].name = NULL;
table->irq_resource[idx].start = -1;
table->irq_resource[idx].end = -1;
table->irq_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_DMA; idx++) {
if (resa->dma_resource[idx].start != resb->dma_resource[idx].start)
return 1;
table->dma_resource[idx].name = NULL;
table->dma_resource[idx].start = -1;
table->dma_resource[idx].end = -1;
table->dma_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_PORT; idx++) {
if (resa->port_resource[idx].start != resb->port_resource[idx].start)
return 1;
if (resa->port_resource[idx].end != resb->port_resource[idx].end)
return 1;
table->port_resource[idx].name = NULL;
table->port_resource[idx].start = 0;
table->port_resource[idx].end = 0;
table->port_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_MEM; idx++) {
if (resa->mem_resource[idx].start != resb->mem_resource[idx].start)
return 1;
if (resa->mem_resource[idx].end != resb->mem_resource[idx].end)
return 1;
table->mem_resource[idx].name = NULL;
table->mem_resource[idx].start = 0;
table->mem_resource[idx].end = 0;
table->mem_resource[idx].flags = IORESOURCE_AUTO;
}
return 0;
up(&pnp_res_mutex);
}
/*
* PnP Device Resource Management
*/
/**
* pnp_auto_config_dev - determines the best possible resource configuration based on available information
* @dev: pointer to the desired device
* pnp_clean_resources - clears resources that were not manually set
* @res - the resources to clean
*
*/
int pnp_auto_config_dev(struct pnp_dev *dev)
{
int error;
if(!dev)
return -EINVAL;
dev->config_mode = PNP_CONFIG_AUTO;
if(dev->active)
error = pnp_resolve_conflicts(dev);
else
error = pnp_advanced_config(dev);
return error;
}
static void pnp_process_manual_resources(struct pnp_resource_table * ctab, struct pnp_resource_table * ntab)
static void pnp_clean_resources(struct pnp_resource_table * res)
{
int idx;
for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
if (ntab->irq_resource[idx].flags & IORESOURCE_AUTO)
if (!(res->irq_resource[idx].flags & IORESOURCE_AUTO))
continue;
ctab->irq_resource[idx].start = ntab->irq_resource[idx].start;
ctab->irq_resource[idx].end = ntab->irq_resource[idx].end;
ctab->irq_resource[idx].flags = ntab->irq_resource[idx].flags;
res->irq_resource[idx].start = -1;
res->irq_resource[idx].end = -1;
res->irq_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_DMA; idx++) {
if (ntab->dma_resource[idx].flags & IORESOURCE_AUTO)
if (!(res->dma_resource[idx].flags & IORESOURCE_AUTO))
continue;
ctab->dma_resource[idx].start = ntab->dma_resource[idx].start;
ctab->dma_resource[idx].end = ntab->dma_resource[idx].end;
ctab->dma_resource[idx].flags = ntab->dma_resource[idx].flags;
res->dma_resource[idx].start = -1;
res->dma_resource[idx].end = -1;
res->dma_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_PORT; idx++) {
if (ntab->port_resource[idx].flags & IORESOURCE_AUTO)
if (!(res->port_resource[idx].flags & IORESOURCE_AUTO))
continue;
ctab->port_resource[idx].start = ntab->port_resource[idx].start;
ctab->port_resource[idx].end = ntab->port_resource[idx].end;
ctab->port_resource[idx].flags = ntab->port_resource[idx].flags;
res->port_resource[idx].start = 0;
res->port_resource[idx].end = 0;
res->port_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_MEM; idx++) {
if (ntab->irq_resource[idx].flags & IORESOURCE_AUTO)
if (!(res->mem_resource[idx].flags & IORESOURCE_AUTO))
continue;
ctab->irq_resource[idx].start = ntab->mem_resource[idx].start;
ctab->irq_resource[idx].end = ntab->mem_resource[idx].end;
ctab->irq_resource[idx].flags = ntab->mem_resource[idx].flags;
res->mem_resource[idx].start = 0;
res->mem_resource[idx].end = 0;
res->mem_resource[idx].flags = IORESOURCE_AUTO;
}
}
/**
* 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.
*/
int pnp_assign_resources(struct pnp_dev *dev, int depnum)
{
struct pnp_port *port;
struct pnp_mem *mem;
struct pnp_irq *irq;
struct pnp_dma *dma;
int nport = 0, nmem = 0, nirq = 0, ndma = 0;
if (!pnp_can_configure(dev))
return -ENODEV;
down(&pnp_res_mutex);
pnp_clean_resources(&dev->res); /* start with a fresh slate */
if (dev->independent) {
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))
goto fail;
nport++;
port = port->next;
}
while (mem) {
if (!pnp_assign_mem(dev, mem, nmem))
goto fail;
nmem++;
mem = mem->next;
}
while (irq) {
if (!pnp_assign_irq(dev, irq, nirq))
goto fail;
nirq++;
irq = irq->next;
}
while (dma) {
if (!pnp_assign_dma(dev, dma, ndma))
goto fail;
ndma++;
dma = dma->next;
}
}
if (depnum) {
struct pnp_option *dep;
int i;
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))
goto fail;
nport++;
port = port->next;
}
while (mem) {
if (!pnp_assign_mem(dev, mem, nmem))
goto fail;
nmem++;
mem = mem->next;
}
while (irq) {
if (!pnp_assign_irq(dev, irq, nirq))
goto fail;
nirq++;
irq = irq->next;
}
while (dma) {
if (!pnp_assign_dma(dev, dma, ndma))
goto fail;
ndma++;
dma = dma->next;
}
} else if (dev->dependent)
goto fail;
up(&pnp_res_mutex);
return 1;
fail:
pnp_clean_resources(&dev->res);
up(&pnp_res_mutex);
return 0;
}
/**
* pnp_manual_config_dev - Disables Auto Config and Manually sets the resource table
* @dev: pointer to the desired device
......@@ -572,22 +363,21 @@ static void pnp_process_manual_resources(struct pnp_resource_table * ctab, struc
*
* This function can be used by drivers that want to manually set thier resources.
*/
int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res, int mode)
{
int i;
struct pnp_resource_table * bak;
if (!dev || !res)
return -EINVAL;
if (dev->active)
return -EBUSY;
if (!pnp_can_configure(dev))
return -ENODEV;
bak = pnp_alloc(sizeof(struct pnp_resource_table));
if (!bak)
return -ENOMEM;
*bak = dev->res;
spin_lock(&pnp_lock);
pnp_process_manual_resources(&dev->res, res);
down(&pnp_res_mutex);
dev->res = *res;
if (!(mode & PNP_CONFIG_FORCE)) {
for (i = 0; i < PNP_MAX_PORT; i++) {
if(pnp_check_port(dev,i))
......@@ -606,27 +396,64 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res,
goto fail;
}
}
dev->config_mode = PNP_CONFIG_MANUAL;
spin_unlock(&pnp_lock);
up(&pnp_res_mutex);
pnp_resolve_conflicts(dev);
pnp_auto_config_dev(dev);
kfree(bak);
return 0;
fail:
dev->res = *bak;
spin_unlock(&pnp_lock);
up(&pnp_res_mutex);
kfree(bak);
return -EINVAL;
}
/**
* pnp_activate_dev - activates a PnP device for use
* pnp_auto_config_dev - automatically assigns resources to a device
* @dev: pointer to the desired device
*
* finds the best resource configuration and then informs the correct pnp protocol
*/
int pnp_auto_config_dev(struct pnp_dev *dev)
{
struct pnp_option *dep;
int i = 1;
if(!dev)
return -EINVAL;
if(!pnp_can_configure(dev)) {
pnp_info("Device %s does not support resource configuration.", dev->dev.bus_id);
return -ENODEV;
}
if (!dev->dependent) {
if (pnp_assign_resources(dev, 0))
return 1;
else
return 0;
}
dep = dev->dependent;
do {
if (pnp_assign_resources(dev, i))
return 1;
/* if this dependent resource failed, try the next one */
dep = dep->next;
i++;
} while (dep);
pnp_err("Unable to assign resources to device %s.", dev->dev.bus_id);
return 0;
}
/**
* pnp_activate_dev - activates a PnP device for use
* @dev: pointer to the desired device
*
* does not validate or set resources so be careful.
*/
int pnp_activate_dev(struct pnp_dev *dev)
{
if (!dev)
......@@ -634,55 +461,25 @@ int pnp_activate_dev(struct pnp_dev *dev)
if (dev->active) {
return 0; /* the device is already active */
}
/* If this condition is true, advanced configuration failed, we need to get this device up and running
* so we use the simple config engine which ignores cold conflicts, this of course may lead to new failures */
if (!pnp_is_active(dev)) {
if (!pnp_simple_config(dev)) {
pnp_err("res: Unable to resolve resource conflicts for the device '%s'.", dev->dev.bus_id);
goto fail;
}
}
spin_lock(&pnp_lock); /* we lock just in case the device is being configured during this call */
dev->active = 1;
spin_unlock(&pnp_lock); /* once the device is claimed active we know it won't be configured so we can unlock */
/* ensure resources are allocated */
if (!pnp_auto_config_dev(dev))
return -EBUSY;
if (dev->config_mode & PNP_CONFIG_INVALID) {
pnp_info("res: Unable to activate the PnP device '%s' because its resource configuration is invalid.", dev->dev.bus_id);
goto fail;
}
if (dev->status != PNP_READY && dev->status != PNP_ATTACHED){
pnp_err("res: Activation failed because the PnP device '%s' is busy.", dev->dev.bus_id);
goto fail;
}
if (!pnp_can_write(dev)) {
pnp_info("res: Unable to activate the PnP device '%s' because this feature is not supported.", dev->dev.bus_id);
goto fail;
pnp_info("Device %s does not supported activation.", dev->dev.bus_id);
return -EINVAL;
}
if (dev->protocol->set(dev, &dev->res)<0) {
pnp_err("res: The protocol '%s' reports that activating the PnP device '%s' has failed.", dev->protocol->name, dev->dev.bus_id);
goto fail;
}
if (pnp_can_read(dev)) {
struct pnp_resource_table * res = pnp_alloc(sizeof(struct pnp_resource_table));
if (!res)
goto fail;
dev->protocol->get(dev, res);
if (pnp_compare_resources(&dev->res, res)) /* if this happens we may be in big trouble but it's best just to continue */
pnp_err("res: The resources requested do not match those set for the PnP device '%s'.", dev->dev.bus_id);
kfree(res);
} else
dev->active = pnp_is_active(dev);
pnp_dbg("res: the device '%s' has been activated.", dev->dev.bus_id);
if (dev->rule) {
kfree(dev->rule);
dev->rule = NULL;
pnp_err("Failed to activate device %s.", dev->dev.bus_id);
return -EIO;
}
return 0;
fail:
dev->active = 0; /* fixes incorrect active state */
return -EINVAL;
dev->active = 1;
pnp_info("Device %s activated.", dev->dev.bus_id);
return 1;
}
/**
......@@ -691,7 +488,6 @@ int pnp_activate_dev(struct pnp_dev *dev)
*
* inform the correct pnp protocol so that resources can be used by other devices
*/
int pnp_disable_dev(struct pnp_dev *dev)
{
if (!dev)
......@@ -699,21 +495,25 @@ int pnp_disable_dev(struct pnp_dev *dev)
if (!dev->active) {
return 0; /* the device is already disabled */
}
if (dev->status != PNP_READY){
pnp_info("res: Disable failed becuase the PnP device '%s' is busy.", dev->dev.bus_id);
return -EINVAL;
}
if (!pnp_can_disable(dev)) {
pnp_info("res: Unable to disable the PnP device '%s' because this feature is not supported.", dev->dev.bus_id);
pnp_info("Device %s does not supported disabling.", dev->dev.bus_id);
return -EINVAL;
}
if (dev->protocol->disable(dev)<0) {
pnp_err("res: The protocol '%s' reports that disabling the PnP device '%s' has failed.", dev->protocol->name, dev->dev.bus_id);
return -1;
pnp_err("Failed to disable device %s.", dev->dev.bus_id);
return -EIO;
}
dev->active = 0; /* just in case the protocol doesn't do this */
pnp_dbg("res: the device '%s' has been disabled.", dev->dev.bus_id);
return 0;
dev->active = 0;
pnp_info("Device %s disabled.", dev->dev.bus_id);
/* release the resources so that other devices can use them */
down(&pnp_res_mutex);
pnp_clean_resources(&dev->res);
up(&pnp_res_mutex);
return 1;
}
/**
......@@ -723,7 +523,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
* @size: size of region
*
*/
void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size)
{
if (resource == NULL)
......@@ -734,19 +533,10 @@ void pnp_resource_change(struct resource *resource, unsigned long start, unsigne
}
EXPORT_SYMBOL(pnp_auto_config_dev);
EXPORT_SYMBOL(pnp_assign_resources);
EXPORT_SYMBOL(pnp_manual_config_dev);
EXPORT_SYMBOL(pnp_auto_config_dev);
EXPORT_SYMBOL(pnp_activate_dev);
EXPORT_SYMBOL(pnp_disable_dev);
EXPORT_SYMBOL(pnp_resource_change);
/* format is: pnp_max_moves=num */
static int __init pnp_setup_max_moves(char *str)
{
get_option(&str,&pnp_max_moves);
return 1;
}
__setup("pnp_max_moves=", pnp_setup_max_moves);
EXPORT_SYMBOL(pnp_init_resources);
drivers/pnp/pnpbios/core.c
View file @ d3899e3c
......@@ -935,6 +935,10 @@ static int insert_device(struct pnp_dev *dev, struct pnp_bios_node * node)
dev->capabilities |= PNP_REMOVABLE;
dev->protocol = &pnpbios_protocol;
/* clear out the damaged flags */
if (!dev->active)
pnp_init_resources(&dev->res);
pnp_add_device(dev);
pnpbios_interface_attach_device(node);
......
drivers/pnp/quirks.c
View file @ d3899e3c
......@@ -30,7 +30,7 @@
static void quirk_awe32_resources(struct pnp_dev *dev)
{
struct pnp_port *port, *port2, *port3;
struct pnp_resources *res = dev->possible->dep;
struct pnp_option *res = dev->dependent;
/*
* Unfortunately the isapnp_add_port_resource is too tightly bound
......@@ -38,7 +38,7 @@ static void quirk_awe32_resources(struct pnp_dev *dev)
* two extra ports (at offset 0x400 and 0x800 from the one given) by
* hand.
*/
for ( ; res ; res = res->dep ) {
for ( ; res ; res = res->next ) {
port2 = pnp_alloc(sizeof(struct pnp_port));
if (!port2)
return;
......@@ -62,9 +62,9 @@ static void quirk_awe32_resources(struct pnp_dev *dev)
static void quirk_cmi8330_resources(struct pnp_dev *dev)
{
struct pnp_resources *res = dev->possible->dep;
struct pnp_option *res = dev->dependent;
for ( ; res ; res = res->dep ) {
for ( ; res ; res = res->next ) {
struct pnp_irq *irq;
struct pnp_dma *dma;
......@@ -82,7 +82,7 @@ static void quirk_cmi8330_resources(struct pnp_dev *dev)
static void quirk_sb16audio_resources(struct pnp_dev *dev)
{
struct pnp_port *port;
struct pnp_resources *res = dev->possible->dep;
struct pnp_option *res = dev->dependent;
int changed = 0;
/*
......@@ -91,7 +91,7 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev)
* auto-configured.
*/
for( ; res ; res = res->dep ) {
for( ; res ; res = res->next ) {
port = res->port;
if(!port)
continue;
......@@ -118,11 +118,11 @@ static void quirk_opl3sax_resources(struct pnp_dev *dev)
* doesn't allow a DMA channel of 0, afflicted card is an
* OPL3Sax where x=4.
*/
struct pnp_resources *res;
struct pnp_option *res;
int max;
res = dev->possible;
res = dev->dependent;
max = 0;
for (res = res->dep; res; res = res->dep) {
for (; res; res = res->next) {
if (res->dma->map > max)
max = res->dma->map;
}
......
drivers/pnp/resource.c
View file @ d3899e3c
......@@ -10,18 +10,19 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/irq.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pnp.h>
#include "base.h"
int pnp_allow_dma0 = -1; /* allow dma 0 during auto activation: -1=off (:default), 0=off (set by user), 1=on */
int pnp_allow_dma0 = -1; /* allow dma 0 during auto activation:
* -1=off (:default), 0=off (set by user), 1=on */
int pnp_skip_pci_scan; /* skip PCI resource scanning */
int pnp_reserve_irq[16] = { [0 ... 15] = -1 }; /* reserve (don't use) some IRQ */
int pnp_reserve_dma[8] = { [0 ... 7] = -1 }; /* reserve (don't use) some DMA */
......@@ -30,88 +31,75 @@ int pnp_reserve_mem[16] = { [0 ... 15] = -1 }; /* reserve (don't use) some memor
/*
* possible resource registration
* option registration
*/
struct pnp_resources * pnp_build_resource(struct pnp_dev *dev, int dependent)
static struct pnp_option * pnp_build_option(int priority)
{
struct pnp_resources *res, *ptr, *ptra;
struct pnp_option *option = pnp_alloc(sizeof(struct pnp_option));
res = pnp_alloc(sizeof(struct pnp_resources));
if (!res)
/* check if pnp_alloc ran out of memory */
if (!option)
return NULL;
ptr = dev->possible;
if (ptr) { /* add to another list */
ptra = ptr->dep;
while (ptra && ptra->dep)
ptra = ptra->dep;
if (!ptra)
ptr->dep = res;
else
ptra->dep = res;
} else
dev->possible = res;
if (dependent) {
res->priority = dependent & 0xff;
if (res->priority > PNP_RES_PRIORITY_FUNCTIONAL)
res->priority = PNP_RES_PRIORITY_INVALID;
} else
res->priority = PNP_RES_PRIORITY_PREFERRED;
return res;
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_resources * pnp_find_resources(struct pnp_dev *dev, int depnum)
struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev)
{
int i;
struct pnp_resources *res;
struct pnp_option *option;
if (!dev)
return NULL;
res = dev->possible;
if (!res)
return NULL;
for (i = 0; i < depnum; i++)
{
if (res->dep)
res = res->dep;
else
return NULL;
}
return res;
option = pnp_build_option(PNP_RES_PRIORITY_PREFERRED);
/* this should never happen but if it does we'll try to continue */
if (dev->independent)
pnp_err("independent resource already registered");
dev->independent = option;
return option;
}
int pnp_get_max_depnum(struct pnp_dev *dev)
struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority)
{
int num = 0;
struct pnp_resources *res;
struct pnp_option *option;
if (!dev)
return -EINVAL;
res = dev->possible;
if (!res)
return -EINVAL;
while (res->dep){
res = res->dep;
num++;
}
return num;
return NULL;
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;
return option;
}
int pnp_add_irq_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data)
int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data)
{
int i;
struct pnp_resources *res;
struct pnp_irq *ptr;
res = pnp_find_resources(dev,depnum);
if (!res)
if (!option)
return -EINVAL;
if (!data)
return -EINVAL;
ptr = res->irq;
ptr = option->irq;
while (ptr && ptr->next)
ptr = ptr->next;
if (ptr)
ptr->next = data;
else
res->irq = data;
option->irq = data;
#ifdef CONFIG_PCI
for (i=0; i<16; i++)
if (data->map & (1<<i))
......@@ -120,60 +108,59 @@ int pnp_add_irq_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data)
return 0;
}
int pnp_add_dma_resource(struct pnp_dev *dev, int depnum, struct pnp_dma *data)
int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data)
{
struct pnp_resources *res;
struct pnp_dma *ptr;
res = pnp_find_resources(dev,depnum);
if (!res)
if (!option)
return -EINVAL;
if (!data)
return -EINVAL;
ptr = res->dma;
ptr = option->dma;
while (ptr && ptr->next)
ptr = ptr->next;
if (ptr)
ptr->next = data;
else
res->dma = data;
option->dma = data;
return 0;
}
int pnp_add_port_resource(struct pnp_dev *dev, int depnum, struct pnp_port *data)
int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data)
{
struct pnp_resources *res;
struct pnp_port *ptr;
res = pnp_find_resources(dev,depnum);
if (!res)
if (!option)
return -EINVAL;
if (!data)
return -EINVAL;
ptr = res->port;
ptr = option->port;
while (ptr && ptr->next)
ptr = ptr->next;
if (ptr)
ptr->next = data;
else
res->port = data;
option->port = data;
return 0;
}
int pnp_add_mem_resource(struct pnp_dev *dev, int depnum, struct pnp_mem *data)
int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data)
{
struct pnp_resources *res;
struct pnp_mem *ptr;
res = pnp_find_resources(dev,depnum);
if (!res)
if (!option)
return -EINVAL;
if (!data)
return -EINVAL;
ptr = res->mem;
ptr = option->mem;
while (ptr && ptr->next)
ptr = ptr->next;
if (ptr)
ptr->next = data;
else
res->mem = data;
option->mem = data;
return 0;
}
......@@ -221,18 +208,18 @@ static void pnp_free_mem(struct pnp_mem *mem)
}
}
void pnp_free_resources(struct pnp_resources *resources)
void pnp_free_option(struct pnp_option *option)
{
struct pnp_resources *next;
struct pnp_option *next;
while (resources) {
next = resources->dep;
pnp_free_port(resources->port);
pnp_free_irq(resources->irq);
pnp_free_dma(resources->dma);
pnp_free_mem(resources->mem);
kfree(resources);
resources = 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);
kfree(option);
option = next;
}
}
......@@ -253,50 +240,23 @@ void pnp_free_resources(struct pnp_resources *resources)
(*(enda) >= *(startb) && *(enda) <= *(endb)) || \
(*(starta) < *(startb) && *(enda) > *(endb)))
struct pnp_dev * pnp_check_port_conflicts(struct pnp_dev * dev, int idx, int mode)
{
int tmp;
unsigned long *port, *end, *tport, *tend;
struct pnp_dev *tdev;
port = &dev->res.port_resource[idx].start;
end = &dev->res.port_resource[idx].end;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.port_resource[idx].start == 0)
return NULL;
/* check for cold conflicts */
pnp_for_each_dev(tdev) {
/* Is the device configurable? */
if (tdev == dev || (mode ? !tdev->active : tdev->active))
continue;
for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
if (tdev->res.port_resource[tmp].flags & IORESOURCE_IO) {
tport = &tdev->res.port_resource[tmp].start;
tend = &tdev->res.port_resource[tmp].end;
if (ranged_conflict(port,end,tport,tend))
return tdev;
}
}
}
return NULL;
}
int pnp_check_port(struct pnp_dev * dev, int idx)
{
int tmp;
struct pnp_dev *tdev;
unsigned long *port, *end, *tport, *tend;
port = &dev->res.port_resource[idx].start;
end = &dev->res.port_resource[idx].end;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.port_resource[idx].start == 0)
return 0;
return 1;
/* check if the resource is already in use, skip if the device is active because it itself may be in use */
/* check if the resource is already in use, skip if the
* device is active because it itself may be in use */
if(!dev->active) {
if (check_region(*port, length(port,end)))
return CONFLICT_TYPE_IN_USE;
if (__check_region(&ioport_resource, *port, length(port,end)))
return 0;
}
/* check if the resource is reserved */
......@@ -304,7 +264,7 @@ int pnp_check_port(struct pnp_dev * dev, int idx)
int rport = pnp_reserve_io[tmp << 1];
int rend = pnp_reserve_io[(tmp << 1) + 1] + rport - 1;
if (ranged_conflict(port,end,&rport,&rend))
return CONFLICT_TYPE_RESERVED;
return 0;
}
/* check for internal conflicts */
......@@ -313,61 +273,44 @@ int pnp_check_port(struct pnp_dev * dev, int idx)
tport = &dev->res.port_resource[tmp].start;
tend = &dev->res.port_resource[tmp].end;
if (ranged_conflict(port,end,tport,tend))
return CONFLICT_TYPE_INTERNAL;
return 0;
}
}
/* check for warm conflicts */
if (pnp_check_port_conflicts(dev, idx, SEARCH_WARM))
return CONFLICT_TYPE_PNP_WARM;
return 0;
}
struct pnp_dev * pnp_check_mem_conflicts(struct pnp_dev * dev, int idx, int mode)
{
int tmp;
unsigned long *addr, *end, *taddr, *tend;
struct pnp_dev *tdev;
addr = &dev->res.mem_resource[idx].start;
end = &dev->res.mem_resource[idx].end;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.mem_resource[idx].start == 0)
return NULL;
/* check for cold conflicts */
/* check for conflicts with other pnp devices */
pnp_for_each_dev(tdev) {
/* Is the device configurable? */
if (tdev == dev || (mode ? !tdev->active : tdev->active))
if (tdev == dev)
continue;
for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
if (tdev->res.mem_resource[tmp].flags & IORESOURCE_MEM) {
taddr = &tdev->res.mem_resource[tmp].start;
tend = &tdev->res.mem_resource[tmp].end;
if (ranged_conflict(addr,end,taddr,tend))
return tdev;
for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
if (tdev->res.port_resource[tmp].flags & IORESOURCE_IO) {
tport = &tdev->res.port_resource[tmp].start;
tend = &tdev->res.port_resource[tmp].end;
if (ranged_conflict(port,end,tport,tend))
return 0;
}
}
}
return NULL;
return 1;
}
int pnp_check_mem(struct pnp_dev * dev, int idx)
{
int tmp;
struct pnp_dev *tdev;
unsigned long *addr, *end, *taddr, *tend;
addr = &dev->res.mem_resource[idx].start;
end = &dev->res.mem_resource[idx].end;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.mem_resource[idx].start == 0)
return 0;
return 1;
/* check if the resource is already in use, skip if the device is active because it itself may be in use */
/* check if the resource is already in use, skip if the
* device is active because it itself may be in use */
if(!dev->active) {
if (__check_region(&iomem_resource, *addr, length(addr,end)))
return CONFLICT_TYPE_IN_USE;
if (check_mem_region(*addr, length(addr,end)))
return 0;
}
/* check if the resource is reserved */
......@@ -375,7 +318,7 @@ int pnp_check_mem(struct pnp_dev * dev, int idx)
int raddr = pnp_reserve_mem[tmp << 1];
int rend = pnp_reserve_mem[(tmp << 1) + 1] + raddr - 1;
if (ranged_conflict(addr,end,&raddr,&rend))
return CONFLICT_TYPE_RESERVED;
return 0;
}
/* check for internal conflicts */
......@@ -384,40 +327,25 @@ int pnp_check_mem(struct pnp_dev * dev, int idx)
taddr = &dev->res.mem_resource[tmp].start;
tend = &dev->res.mem_resource[tmp].end;
if (ranged_conflict(addr,end,taddr,tend))
return CONFLICT_TYPE_INTERNAL;
return 0;
}
}
/* check for warm conflicts */
if (pnp_check_mem_conflicts(dev, idx, SEARCH_WARM))
return CONFLICT_TYPE_PNP_WARM;
return 0;
}
struct pnp_dev * pnp_check_irq_conflicts(struct pnp_dev * dev, int idx, int mode)
{
int tmp;
struct pnp_dev * tdev;
unsigned long * irq = &dev->res.irq_resource[idx].start;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.irq_resource[idx].start == -1)
return NULL;
/* check for cold conflicts */
/* check for conflicts with other pnp devices */
pnp_for_each_dev(tdev) {
/* Is the device configurable? */
if (tdev == dev || (mode ? !tdev->active : tdev->active))
if (tdev == dev)
continue;
for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
if (tdev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
if ((tdev->res.irq_resource[tmp].start == *irq))
return tdev;
for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
if (tdev->res.mem_resource[tmp].flags & IORESOURCE_MEM) {
taddr = &tdev->res.mem_resource[tmp].start;
tend = &tdev->res.mem_resource[tmp].end;
if (ranged_conflict(addr,end,taddr,tend))
return 0;
}
}
}
return NULL;
return 1;
}
static irqreturn_t pnp_test_handler(int irq, void *dev_id, struct pt_regs *regs)
......@@ -428,27 +356,28 @@ static irqreturn_t pnp_test_handler(int irq, void *dev_id, struct pt_regs *regs)
int pnp_check_irq(struct pnp_dev * dev, int idx)
{
int tmp;
struct pnp_dev *tdev;
unsigned long * irq = &dev->res.irq_resource[idx].start;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.irq_resource[idx].start == -1)
return 0;
return 1;
/* check if the resource is valid */
if (*irq < 0 || *irq > 15)
return CONFLICT_TYPE_INVALID;
return 0;
/* check if the resource is reserved */
for (tmp = 0; tmp < 16; tmp++) {
if (pnp_reserve_irq[tmp] == *irq)
return CONFLICT_TYPE_RESERVED;
return 0;
}
/* check for internal conflicts */
for (tmp = 0; tmp < PNP_MAX_IRQ && tmp != idx; tmp++) {
if (dev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
if (dev->res.irq_resource[tmp].start == *irq)
return CONFLICT_TYPE_INTERNAL;
return 0;
}
}
......@@ -458,233 +387,94 @@ int pnp_check_irq(struct pnp_dev * dev, int idx)
struct pci_dev * pci = NULL;
while ((pci = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pci)) != NULL) {
if (pci->irq == *irq)
return CONFLICT_TYPE_PCI;
return 0;
}
}
#endif
/* check if the resource is already in use, skip if the device is active because it itself may be in use */
/* check if the resource is already in use, skip if the
* device is active because it itself may be in use */
if(!dev->active) {
if (request_irq(*irq, pnp_test_handler, SA_INTERRUPT, "pnp", NULL))
return CONFLICT_TYPE_IN_USE;
return 0;
free_irq(*irq, NULL);
}
/* check for warm conflicts */
if (pnp_check_irq_conflicts(dev, idx, SEARCH_WARM))
return CONFLICT_TYPE_PNP_WARM;
return 0;
}
struct pnp_dev * pnp_check_dma_conflicts(struct pnp_dev * dev, int idx, int mode)
{
int tmp;
struct pnp_dev * tdev;
unsigned long * dma = &dev->res.dma_resource[idx].start;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.dma_resource[idx].start == -1)
return NULL;
/* check for cold conflicts */
/* check for conflicts with other pnp devices */
pnp_for_each_dev(tdev) {
/* Is the device configurable? */
if (tdev == dev || (mode ? !tdev->active : tdev->active))
if (tdev == dev)
continue;
for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
if (tdev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
if ((tdev->res.dma_resource[tmp].start == *dma))
return tdev;
for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
if (tdev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
if ((tdev->res.irq_resource[tmp].start == *irq))
return 0;
}
}
}
return NULL;
return 1;
}
int pnp_check_dma(struct pnp_dev * dev, int idx)
{
int tmp, mindma = 1;
struct pnp_dev *tdev;
unsigned long * dma = &dev->res.dma_resource[idx].start;
/* if the resource doesn't exist, don't complain about it */
if (dev->res.dma_resource[idx].start == -1)
return 0;
return 1;
/* check if the resource is valid */
if (pnp_allow_dma0 == 1)
mindma = 0;
if (*dma < mindma || *dma == 4 || *dma > 7)
return CONFLICT_TYPE_INVALID;
return 0;
/* check if the resource is reserved */
for (tmp = 0; tmp < 8; tmp++) {
if (pnp_reserve_dma[tmp] == *dma)
return CONFLICT_TYPE_RESERVED;
return 0;
}
/* check for internal conflicts */
for (tmp = 0; tmp < PNP_MAX_DMA && tmp != idx; tmp++) {
if (dev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
if (dev->res.dma_resource[tmp].start == *dma)
return CONFLICT_TYPE_INTERNAL;
return 0;
}
}
/* check if the resource is already in use, skip if the device is active because it itself may be in use */
/* check if the resource is already in use, skip if the
* device is active because it itself may be in use */
if(!dev->active) {
if (request_dma(*dma, "pnp"))
return CONFLICT_TYPE_IN_USE;
return 0;
free_dma(*dma);
}
/* check for warm conflicts */
if (pnp_check_dma_conflicts(dev, idx, SEARCH_WARM))
return CONFLICT_TYPE_PNP_WARM;
/* check for conflicts with other pnp devices */
pnp_for_each_dev(tdev) {
if (tdev == dev)
continue;
for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
if (tdev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
if ((tdev->res.dma_resource[tmp].start == *dma))
return 0;
}
/**
* pnp_init_resource_table - Resets a resource table to default values.
* @table: pointer to the desired resource table
*
*/
void pnp_init_resource_table(struct pnp_resource_table *table)
{
int idx;
for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
table->irq_resource[idx].name = NULL;
table->irq_resource[idx].start = -1;
table->irq_resource[idx].end = -1;
table->irq_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_DMA; idx++) {
table->dma_resource[idx].name = NULL;
table->dma_resource[idx].start = -1;
table->dma_resource[idx].end = -1;
table->dma_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_PORT; idx++) {
table->port_resource[idx].name = NULL;
table->port_resource[idx].start = 0;
table->port_resource[idx].end = 0;
table->port_resource[idx].flags = IORESOURCE_AUTO;
}
for (idx = 0; idx < PNP_MAX_MEM; idx++) {
table->mem_resource[idx].name = NULL;
table->mem_resource[idx].start = 0;
table->mem_resource[idx].end = 0;
table->mem_resource[idx].flags = IORESOURCE_AUTO;
}
}
/**
* pnp_generate_rule - Creates a rule table structure based on depnum and device.
* @dev: pointer to the desired device
* @depnum: dependent function, if not valid will return an error
* @rule: pointer to a rule structure to record data to
*
*/
int pnp_generate_rule(struct pnp_dev * dev, int depnum, struct pnp_rule_table * rule)
{
int nport = 0, nirq = 0, ndma = 0, nmem = 0;
struct pnp_resources * res;
struct pnp_port * port;
struct pnp_mem * mem;
struct pnp_irq * irq;
struct pnp_dma * dma;
if (depnum < 0 || !rule)
return -EINVAL;
}
}
/* independent */
res = pnp_find_resources(dev, 0);
if (!res)
return -ENODEV;
port = res->port;
mem = res->mem;
irq = res->irq;
dma = res->dma;
while (port){
rule->port[nport] = port;
nport++;
port = port->next;
}
while (mem){
rule->mem[nmem] = mem;
nmem++;
mem = mem->next;
}
while (irq){
rule->irq[nirq] = irq;
nirq++;
irq = irq->next;
}
while (dma){
rule->dma[ndma] = dma;
ndma++;
dma = dma->next;
}
/* dependent */
if (depnum == 0)
return 1;
res = pnp_find_resources(dev, depnum);
if (!res)
return -ENODEV;
port = res->port;
mem = res->mem;
irq = res->irq;
dma = res->dma;
while (port){
rule->port[nport] = port;
nport++;
port = port->next;
}
while (mem){
rule->mem[nmem] = mem;
nmem++;
mem = mem->next;
}
while (irq){
rule->irq[nirq] = irq;
nirq++;
irq = irq->next;
}
while (dma){
rule->dma[ndma] = dma;
ndma++;
dma = dma->next;
}
/* clear the remaining values */
for (; nport < PNP_MAX_PORT; nport++)
rule->port[nport] = NULL;
for (; nmem < PNP_MAX_MEM; nmem++)
rule->mem[nmem] = NULL;
for (; nirq < PNP_MAX_IRQ; nirq++)
rule->irq[nirq] = NULL;
for (; ndma < PNP_MAX_DMA; ndma++)
rule->dma[ndma] = NULL;
return 1;
}
EXPORT_SYMBOL(pnp_build_resource);
EXPORT_SYMBOL(pnp_find_resources);
EXPORT_SYMBOL(pnp_get_max_depnum);
EXPORT_SYMBOL(pnp_add_irq_resource);
EXPORT_SYMBOL(pnp_add_dma_resource);
EXPORT_SYMBOL(pnp_add_port_resource);
EXPORT_SYMBOL(pnp_add_mem_resource);
EXPORT_SYMBOL(pnp_init_resource_table);
EXPORT_SYMBOL(pnp_generate_rule);
EXPORT_SYMBOL(pnp_register_dependent_option);
EXPORT_SYMBOL(pnp_register_independent_option);
EXPORT_SYMBOL(pnp_register_irq_resource);
EXPORT_SYMBOL(pnp_register_dma_resource);
EXPORT_SYMBOL(pnp_register_port_resource);
EXPORT_SYMBOL(pnp_register_mem_resource);
/* format is: allowdma0 */
......
drivers/pnp/support.c
View file @ d3899e3c
/*
* support.c - provides standard pnp functions for the use of pnp protocol drivers,
*
* Copyright 2002 Adam Belay <ambx1@neo.rr.com>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
*
* Resource parsing functions are based on those in the linux pnpbios driver.
* Copyright Christian Schmidt, Tom Lees, David Hinds, Alan Cox, Thomas Hood,
......@@ -10,6 +10,7 @@
#include <linux/config.h>
#include <linux/module.h>
#include <linux/ctype.h>
#ifdef CONFIG_PNP_DEBUG
#define DEBUG
......@@ -122,7 +123,7 @@ unsigned char * pnp_parse_current_resources(unsigned char * p, unsigned char * e
return NULL;
/* Blank the resource table values */
pnp_init_resource_table(res);
pnp_init_resources(res);
while ((char *)p < (char *)end) {
......@@ -250,51 +251,51 @@ unsigned char * pnp_parse_current_resources(unsigned char * p, unsigned char * e
* Possible resource reading functions *
*/
static void possible_mem(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_mem(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_mem * mem;
mem = pnp_alloc(sizeof(struct pnp_mem));
if (!mem)
return;
mem->min = ((p[3] << 8) | p[2]) << 8;
mem->max = ((p[5] << 8) | p[4]) << 8;
mem->align = (p[7] << 8) | p[6];
mem->size = ((p[9] << 8) | p[8]) << 8;
mem->flags = p[1];
pnp_add_mem_resource(dev,depnum,mem);
mem->min = ((p[5] << 8) | p[4]) << 8;
mem->max = ((p[7] << 8) | p[6]) << 8;
mem->align = (p[9] << 8) | p[8];
mem->size = ((p[11] << 8) | p[10]) << 8;
mem->flags = p[3];
pnp_register_mem_resource(option,mem);
return;
}
static void possible_mem32(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_mem32(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_mem * mem;
mem = pnp_alloc(sizeof(struct pnp_mem));
if (!mem)
return;
mem->min = (p[5] << 24) | (p[4] << 16) | (p[3] << 8) | p[2];
mem->max = (p[9] << 24) | (p[8] << 16) | (p[7] << 8) | p[6];
mem->align = (p[13] << 24) | (p[12] << 16) | (p[11] << 8) | p[10];
mem->size = (p[17] << 24) | (p[16] << 16) | (p[15] << 8) | p[14];
mem->flags = p[1];
pnp_add_mem_resource(dev,depnum,mem);
mem->min = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
mem->max = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
mem->align = (p[15] << 24) | (p[14] << 16) | (p[13] << 8) | p[12];
mem->size = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
mem->flags = p[3];
pnp_register_mem_resource(option,mem);
return;
}
static void possible_fixed_mem32(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_fixed_mem32(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_mem * mem;
mem = pnp_alloc(sizeof(struct pnp_mem));
if (!mem)
return;
mem->min = mem->max = (p[5] << 24) | (p[4] << 16) | (p[3] << 8) | p[2];
mem->size = (p[9] << 24) | (p[8] << 16) | (p[7] << 8) | p[6];
mem->min = mem->max = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
mem->size = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
mem->align = 0;
mem->flags = p[1];
pnp_add_mem_resource(dev,depnum,mem);
mem->flags = p[3];
pnp_register_mem_resource(option,mem);
return;
}
static void possible_irq(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_irq(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_irq * irq;
irq = pnp_alloc(sizeof(struct pnp_irq));
......@@ -303,11 +304,13 @@ static void possible_irq(unsigned char *p, int size, int depnum, struct pnp_dev
irq->map = (p[2] << 8) | p[1];
if (size > 2)
irq->flags = p[3];
pnp_add_irq_resource(dev,depnum,irq);
else
irq->flags = IORESOURCE_IRQ_HIGHEDGE;
pnp_register_irq_resource(option,irq);
return;
}
static void possible_dma(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_dma(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_dma * dma;
dma = pnp_alloc(sizeof(struct pnp_dma));
......@@ -315,11 +318,11 @@ static void possible_dma(unsigned char *p, int size, int depnum, struct pnp_dev
return;
dma->map = p[1];
dma->flags = p[2];
pnp_add_dma_resource(dev,depnum,dma);
pnp_register_dma_resource(option,dma);
return;
}
static void possible_port(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_port(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_port * port;
port = pnp_alloc(sizeof(struct pnp_port));
......@@ -330,11 +333,11 @@ static void possible_port(unsigned char *p, int size, int depnum, struct pnp_dev
port->align = p[6];
port->size = p[7];
port->flags = p[1] ? PNP_PORT_FLAG_16BITADDR : 0;
pnp_add_port_resource(dev,depnum,port);
pnp_register_port_resource(option,port);
return;
}
static void possible_fixed_port(unsigned char *p, int size, int depnum, struct pnp_dev *dev)
static void possible_fixed_port(unsigned char *p, int size, struct pnp_option *option)
{
struct pnp_port * port;
port = pnp_alloc(sizeof(struct pnp_port));
......@@ -344,7 +347,7 @@ static void possible_fixed_port(unsigned char *p, int size, int depnum, struct p
port->size = p[3];
port->align = 0;
port->flags = PNP_PORT_FLAG_FIXED;
pnp_add_port_resource(dev,depnum,port);
pnp_register_port_resource(option,port);
return;
}
......@@ -358,12 +361,14 @@ static void possible_fixed_port(unsigned char *p, int size, int depnum, struct p
unsigned char * pnp_parse_possible_resources(unsigned char * p, unsigned char * end, struct pnp_dev *dev)
{
int len, depnum = 0, dependent = 0;
int len, priority = 0;
struct pnp_option *option;
if (!p)
return NULL;
if (pnp_build_resource(dev, 0) == NULL)
option = pnp_register_independent_option(dev);
if (!option)
return NULL;
while ((char *)p < (char *)end) {
......@@ -375,21 +380,21 @@ unsigned char * pnp_parse_possible_resources(unsigned char * p, unsigned char *
{
if (len != 9)
goto lrg_err;
possible_mem(p,len,depnum,dev);
possible_mem(p,len,option);
break;
}
case LARGE_TAG_MEM32:
{
if (len != 17)
goto lrg_err;
possible_mem32(p,len,depnum,dev);
possible_mem32(p,len,option);
break;
}
case LARGE_TAG_FIXEDMEM32:
{
if (len != 9)
goto lrg_err;
possible_fixed_mem32(p,len,depnum,dev);
possible_fixed_mem32(p,len,option);
break;
}
default: /* an unkown tag */
......@@ -410,46 +415,46 @@ unsigned char * pnp_parse_possible_resources(unsigned char * p, unsigned char *
{
if (len < 2 || len > 3)
goto sm_err;
possible_irq(p,len,depnum,dev);
possible_irq(p,len,option);
break;
}
case SMALL_TAG_DMA:
{
if (len != 2)
goto sm_err;
possible_dma(p,len,depnum,dev);
possible_dma(p,len,option);
break;
}
case SMALL_TAG_STARTDEP:
{
if (len > 1)
goto sm_err;
dependent = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
if (len > 0)
dependent = 0x100 | p[1];
pnp_build_resource(dev,dependent);
depnum = pnp_get_max_depnum(dev);
priority = 0x100 | p[1];
option = pnp_register_dependent_option(dev, priority);
if (!option)
return NULL;
break;
}
case SMALL_TAG_ENDDEP:
{
if (len != 0)
goto sm_err;
depnum = 0;
break;
}
case SMALL_TAG_PORT:
{
if (len != 7)
goto sm_err;
possible_port(p,len,depnum,dev);
possible_port(p,len,option);
break;
}
case SMALL_TAG_FIXEDPORT:
{
if (len != 3)
goto sm_err;
possible_fixed_port(p,len,depnum,dev);
possible_fixed_port(p,len,option);
break;
}
case SMALL_TAG_END:
......@@ -481,12 +486,12 @@ static void write_mem(unsigned char *p, struct resource * res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
p[2] = (base >> 8) & 0xff;
p[3] = ((base >> 8) >> 8) & 0xff;
p[4] = (base >> 8) & 0xff;
p[5] = ((base >> 8) >> 8) & 0xff;
p[8] = (len >> 8) & 0xff;
p[9] = ((len >> 8) >> 8) & 0xff;
p[6] = (base >> 8) & 0xff;
p[7] = ((base >> 8) >> 8) & 0xff;
p[10] = (len >> 8) & 0xff;
p[11] = ((len >> 8) >> 8) & 0xff;
return;
}
......@@ -494,32 +499,32 @@ static void write_mem32(unsigned char *p, struct resource * res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
p[2] = base & 0xff;
p[3] = (base >> 8) & 0xff;
p[4] = (base >> 16) & 0xff;
p[5] = (base >> 24) & 0xff;
p[6] = base & 0xff;
p[7] = (base >> 8) & 0xff;
p[8] = (base >> 16) & 0xff;
p[9] = (base >> 24) & 0xff;
p[14] = len & 0xff;
p[15] = (len >> 8) & 0xff;
p[16] = (len >> 16) & 0xff;
p[17] = (len >> 24) & 0xff;
p[4] = base & 0xff;
p[5] = (base >> 8) & 0xff;
p[6] = (base >> 16) & 0xff;
p[7] = (base >> 24) & 0xff;
p[8] = base & 0xff;
p[9] = (base >> 8) & 0xff;
p[10] = (base >> 16) & 0xff;
p[11] = (base >> 24) & 0xff;
p[16] = len & 0xff;
p[17] = (len >> 8) & 0xff;
p[18] = (len >> 16) & 0xff;
p[19] = (len >> 24) & 0xff;
return;
}
static void write_fixed_mem32(unsigned char *p, struct resource * res)
{ unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
p[2] = base & 0xff;
p[3] = (base >> 8) & 0xff;
p[4] = (base >> 16) & 0xff;
p[5] = (base >> 24) & 0xff;
p[6] = len & 0xff;
p[7] = (len >> 8) & 0xff;
p[8] = (len >> 16) & 0xff;
p[9] = (len >> 24) & 0xff;
p[4] = base & 0xff;
p[5] = (base >> 8) & 0xff;
p[6] = (base >> 16) & 0xff;
p[7] = (base >> 24) & 0xff;
p[8] = len & 0xff;
p[9] = (len >> 8) & 0xff;
p[10] = (len >> 16) & 0xff;
p[11] = (len >> 24) & 0xff;
return;
}
......@@ -630,7 +635,7 @@ unsigned char * pnp_write_resources(unsigned char * p, unsigned char * end, stru
{
if (len != 2)
goto sm_err;
write_dma(p, &res->dma_resource[irq]);
write_dma(p, &res->dma_resource[dma]);
dma++;
break;
}
......
drivers/serial/8250_pnp.c
View file @ d3899e3c
......@@ -315,19 +315,6 @@ static const struct pnp_device_id pnp_dev_table[] = {
MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
static inline void avoid_irq_share(struct pnp_dev *dev)
{
unsigned int map = 0x1FF8;
struct pnp_irq *irq;
struct pnp_resources *res = dev->possible;
serial8250_get_irq_map(&map);
for ( ; res; res = res->dep)
for (irq = res->irq; irq; irq = irq->next)
irq->map = map;
}
static char *modem_names[] __devinitdata = {
"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
"56K", "56k", "K56", "33.6", "28.8", "14.4",
......@@ -346,6 +333,29 @@ static int __devinit check_name(char *name)
return 0;
}
static int __devinit check_resources(struct pnp_option *option)
{
struct pnp_option *tmp;
if (!option)
return 0;
for (tmp = option; tmp; tmp = tmp->next) {
struct pnp_port *port;
for (port = tmp->port; port; port = port->next)
if ((port->size == 8) &&
((port->min == 0x2f8) ||
(port->min == 0x3f8) ||
(port->min == 0x2e8) ||
#ifdef CONFIG_X86_PC9800
(port->min == 0x8b0) ||
#endif
(port->min == 0x3e8)))
return 1;
}
return 0;
}
/*
* Given a complete unknown PnP device, try to use some heuristics to
* detect modems. Currently use such heuristic set:
......@@ -357,30 +367,16 @@ static int __devinit check_name(char *name)
* PnP modems, alternatively we must hardcode all modems in pnp_devices[]
* table.
*/
static int serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
{
struct pnp_resources *res = dev->possible;
struct pnp_resources *resa;
if (!(check_name(dev->dev.name) || (dev->card && check_name(dev->card->dev.name))))
return -ENODEV;
if (!res)
return -ENODEV;
if (check_resources(dev->independent))
return 0;
for (resa = res->dep; resa; resa = resa->dep) {
struct pnp_port *port;
for (port = res->port; port; port = port->next)
if ((port->size == 8) &&
((port->min == 0x2f8) ||
(port->min == 0x3f8) ||
(port->min == 0x2e8) ||
#ifdef CONFIG_X86_PC9800
(port->min == 0x8b0) ||
#endif
(port->min == 0x3e8)))
if (check_resources(dev->dependent))
return 0;
}
return -ENODEV;
}
......@@ -395,8 +391,6 @@ serial_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
if (ret < 0)
return ret;
}
if (flags & SPCI_FL_NO_SHIRQ)
avoid_irq_share(dev);
memset(&serial_req, 0, sizeof(serial_req));
serial_req.irq = pnp_irq(dev,0);
serial_req.port = pnp_port_start(dev, 0);
......
include/linux/pnp.h
View file @ d3899e3c
......@@ -102,22 +102,13 @@ struct pnp_mem {
#define PNP_RES_PRIORITY_FUNCTIONAL 2
#define PNP_RES_PRIORITY_INVALID 65535
struct pnp_resources {
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_dev *dev; /* parent */
struct pnp_resources *dep; /* dependent resources */
};
struct pnp_rule_table {
int depnum;
struct pnp_port *port[PNP_MAX_PORT];
struct pnp_irq *irq[PNP_MAX_IRQ];
struct pnp_dma *dma[PNP_MAX_DMA];
struct pnp_mem *mem[PNP_MAX_MEM];
struct pnp_option *next; /* used to chain dependent resources */
};
struct pnp_resource_table {
......@@ -187,8 +178,6 @@ static inline void pnp_set_card_drvdata (struct pnp_card_link *pcard, void *data
struct pnp_dev {
struct device dev; /* Driver Model device interface */
unsigned char number; /* used as an index, must be unique */
int active;
int capabilities;
int status;
struct list_head global_list; /* node in global list of devices */
......@@ -202,10 +191,12 @@ struct pnp_dev {
struct pnp_card_link * card_link;
struct pnp_id * id; /* supported EISA IDs*/
struct pnp_resource_table res; /* contains the currently chosen resources */
struct pnp_resources * possible; /* a list of possible resources */
struct pnp_rule_table * rule; /* the current possible resource set */
int config_mode; /* flags that determine how the device's resources should be configured */
int active;
int capabilities;
struct pnp_option * independent;
struct pnp_option * dependent;
struct pnp_resource_table res;
void * protocol_data; /* Used to store protocol specific data */
unsigned short regs; /* ISAPnP: supported registers */
......@@ -252,11 +243,9 @@ struct pnp_fixup {
void (*quirk_function)(struct pnp_dev *dev); /* fixup function */
};
/* config modes */
#define PNP_CONFIG_AUTO 0x0001 /* Use the Resource Configuration Engine to determine resource settings */
#define PNP_CONFIG_MANUAL 0x0002 /* the config has been manually specified */
#define PNP_CONFIG_FORCE 0x0004 /* disables validity checking */
#define PNP_CONFIG_INVALID 0x0008 /* If this flag is set, the pnp layer will refuse to activate the device */
/* config parameters */
#define PNP_CONFIG_NORMAL 0x0001
#define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
/* capabilities */
#define PNP_READ 0x0001
......@@ -271,7 +260,7 @@ struct pnp_fixup {
((dev)->capabilities & PNP_WRITE))
#define pnp_can_disable(dev) (((dev)->protocol) && ((dev)->protocol->disable) && \
((dev)->capabilities & PNP_DISABLE))
#define pnp_can_configure(dev) ((!(dev)->active) && ((dev)->config_mode & PNP_CONFIG_AUTO) && \
#define pnp_can_configure(dev) ((!(dev)->active) && \
((dev)->capabilities & PNP_CONFIGURABLE))
#ifdef CONFIG_ISAPNP
......@@ -383,7 +372,7 @@ struct pnp_protocol {
#if defined(CONFIG_PNP)
/* core */
/* device management */
int pnp_register_protocol(struct pnp_protocol *protocol);
void pnp_unregister_protocol(struct pnp_protocol *protocol);
int pnp_add_device(struct pnp_dev *dev);
......@@ -392,7 +381,7 @@ int pnp_device_attach(struct pnp_dev *pnp_dev);
void pnp_device_detach(struct pnp_dev *pnp_dev);
extern struct list_head pnp_global;
/* card */
/* multidevice card support */
int pnp_add_card(struct pnp_card *card);
void pnp_remove_card(struct pnp_card *card);
int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
......@@ -404,41 +393,35 @@ int pnp_register_card_driver(struct pnp_card_driver * drv);
void pnp_unregister_card_driver(struct pnp_card_driver * drv);
extern struct list_head pnp_cards;
/* resource */
struct pnp_resources * pnp_build_resource(struct pnp_dev *dev, int dependent);
struct pnp_resources * pnp_find_resources(struct pnp_dev *dev, int depnum);
int pnp_get_max_depnum(struct pnp_dev *dev);
int pnp_add_irq_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data);
int pnp_add_dma_resource(struct pnp_dev *dev, int depnum, struct pnp_dma *data);
int pnp_add_port_resource(struct pnp_dev *dev, int depnum, struct pnp_port *data);
int pnp_add_mem_resource(struct pnp_dev *dev, int depnum, struct pnp_mem *data);
void pnp_init_resource_table(struct pnp_resource_table *table);
int pnp_generate_rule(struct pnp_dev * dev, int depnum, struct pnp_rule_table * rule);
/* manager */
/* resource management */
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_option *option, struct pnp_irq *data);
int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data);
int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data);
int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data);
void pnp_init_resources(struct pnp_resource_table *table);
int pnp_assign_resources(struct pnp_dev *dev, int depnum);
int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res, int mode);
int pnp_auto_config_dev(struct pnp_dev *dev);
int pnp_validate_config(struct pnp_dev *dev);
int pnp_activate_dev(struct pnp_dev *dev);
int pnp_disable_dev(struct pnp_dev *dev);
void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size);
int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res, int mode);
int pnp_auto_config_dev(struct pnp_dev *dev);
/* driver */
int compare_pnp_id(struct pnp_id * pos, const char * id);
int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev);
int pnp_register_driver(struct pnp_driver *drv);
void pnp_unregister_driver(struct pnp_driver *drv);
/* support */
/* protocol helpers */
int pnp_is_active(struct pnp_dev * dev);
unsigned char * pnp_parse_current_resources(unsigned char * p, unsigned char * end, struct pnp_resource_table * res);
unsigned char * pnp_parse_possible_resources(unsigned char * p, unsigned char * end, struct pnp_dev * dev);
unsigned char * pnp_write_resources(unsigned char * p, unsigned char * end, struct pnp_resource_table * res);
int compare_pnp_id(struct pnp_id * pos, const char * id);
int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev);
int pnp_register_driver(struct pnp_driver *drv);
void pnp_unregister_driver(struct pnp_driver *drv);
#else
/* just in case anyone decides to call these without PnP Support Enabled */
/* core */
/* device management */
static inline int pnp_register_protocol(struct pnp_protocol *protocol) { return -ENODEV; }
static inline void pnp_unregister_protocol(struct pnp_protocol *protocol) { }
static inline int pnp_init_device(struct pnp_dev *dev) { return -ENODEV; }
......@@ -447,7 +430,7 @@ static inline void pnp_remove_device(struct pnp_dev *dev) { }
static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { ; }
/* card */
/* multidevice card support */
static inline int pnp_add_card(struct pnp_card *card) { return -ENODEV; }
static inline void pnp_remove_card(struct pnp_card *card) { ; }
static inline int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev) { return -ENODEV; }
......@@ -458,35 +441,31 @@ static inline void pnp_release_card_device(struct pnp_dev * dev) { ; }
static inline int pnp_register_card_driver(struct pnp_card_driver * drv) { return -ENODEV; }
static inline void pnp_unregister_card_driver(struct pnp_card_driver * drv) { ; }
/* resource */
static inline struct pnp_resources * pnp_build_resource(struct pnp_dev *dev, int dependent) { return NULL; }
static inline struct pnp_resources * pnp_find_resources(struct pnp_dev *dev, int depnum) { return NULL; }
static inline int pnp_get_max_depnum(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_add_irq_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data) { return -ENODEV; }
static inline int pnp_add_dma_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data) { return -ENODEV; }
static inline int pnp_add_port_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data) { return -ENODEV; }
static inline int pnp_add_mem_resource(struct pnp_dev *dev, int depnum, struct pnp_irq *data) { return -ENODEV; }
static inline void pnp_init_resource_table(struct pnp_resource_table *table) { ; }
static inline int pnp_generate_rule(struct pnp_dev * dev, int depnum, struct pnp_rule_table * rule) { return -ENODEV; }
/* manager */
static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size) { ; }
/* resource management */
static inline struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev) { return NULL; }
static inline struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority) { return NULL; }
static inline int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data) { return -ENODEV; }
static inline int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data) { return -ENODEV; }
static inline int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data) { return -ENODEV; }
static inline int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data) { return -ENODEV; }
static inline void pnp_init_resources(struct pnp_resource_table *table) { }
static inline int pnp_assign_resources(struct pnp_dev *dev, int depnum) { return -ENODEV; }
static inline int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res, int mode) { return -ENODEV; }
static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_validate_config(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size) { }
/* driver */
static inline int compare_pnp_id(struct list_head * id_list, const char * id) { return -ENODEV; }
static inline int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
static inline void pnp_unregister_driver(struct pnp_driver *drv) { ; }
/* support */
static inline int pnp_is_active(struct pnp_dev * dev) { return -ENODEV; }
/* protocol helpers */
static inline int pnp_is_active(struct pnp_dev * dev) { return 0; }
static inline unsigned char * pnp_parse_current_resources(unsigned char * p, unsigned char * end, struct pnp_resource_table * res) { return NULL; }
static inline unsigned char * pnp_parse_possible_resources(unsigned char * p, unsigned char * end, struct pnp_dev * dev) { return NULL; }
static inline unsigned char * pnp_write_resources(unsigned char * p, unsigned char * end, struct pnp_resource_table * res) { return NULL; }
static inline int compare_pnp_id(struct pnp_id * pos, const char * id) { return -ENODEV; }
static inline int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
static inline void pnp_unregister_driver(struct pnp_driver *drv) { ; }
#endif /* CONFIG_PNP */
......
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