diff options
Diffstat (limited to 'drivers/pcmcia/rsrc_nonstatic.c')
-rw-r--r-- | drivers/pcmcia/rsrc_nonstatic.c | 315 |
1 files changed, 162 insertions, 153 deletions
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index 7039f3c..9b0dc43 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -24,9 +24,9 @@ #include <linux/timer.h> #include <linux/pci.h> #include <linux/device.h> +#include <linux/io.h> #include <asm/irq.h> -#include <asm/io.h> #include <pcmcia/cs_types.h> #include <pcmcia/ss.h> @@ -144,43 +144,44 @@ static int add_interval(struct resource_map *map, u_long base, u_long num) static int sub_interval(struct resource_map *map, u_long base, u_long num) { - struct resource_map *p, *q; - - for (p = map; ; p = q) { - q = p->next; - if (q == map) - break; - if ((q->base+q->num > base) && (base+num > q->base)) { - if (q->base >= base) { - if (q->base+q->num <= base+num) { - /* Delete whole block */ - p->next = q->next; - kfree(q); - /* don't advance the pointer yet */ - q = p; - } else { - /* Cut off bit from the front */ - q->num = q->base + q->num - base - num; - q->base = base + num; - } - } else if (q->base+q->num <= base+num) { - /* Cut off bit from the end */ - q->num = base - q->base; - } else { - /* Split the block into two pieces */ - p = kmalloc(sizeof(struct resource_map), GFP_KERNEL); - if (!p) { - printk(KERN_WARNING "out of memory to update resources\n"); - return -ENOMEM; + struct resource_map *p, *q; + + for (p = map; ; p = q) { + q = p->next; + if (q == map) + break; + if ((q->base+q->num > base) && (base+num > q->base)) { + if (q->base >= base) { + if (q->base+q->num <= base+num) { + /* Delete whole block */ + p->next = q->next; + kfree(q); + /* don't advance the pointer yet */ + q = p; + } else { + /* Cut off bit from the front */ + q->num = q->base + q->num - base - num; + q->base = base + num; + } + } else if (q->base+q->num <= base+num) { + /* Cut off bit from the end */ + q->num = base - q->base; + } else { + /* Split the block into two pieces */ + p = kmalloc(sizeof(struct resource_map), + GFP_KERNEL); + if (!p) { + printk(KERN_WARNING "out of memory to update resources\n"); + return -ENOMEM; + } + p->base = base+num; + p->num = q->base+q->num - p->base; + q->num = base - q->base; + p->next = q->next ; q->next = p; + } } - p->base = base+num; - p->num = q->base+q->num - p->base; - q->num = base - q->base; - p->next = q->next ; q->next = p; - } } - } - return 0; + return 0; } /*====================================================================== @@ -194,69 +195,72 @@ static int sub_interval(struct resource_map *map, u_long base, u_long num) static void do_io_probe(struct pcmcia_socket *s, unsigned int base, unsigned int num) { - struct resource *res; - struct socket_data *s_data = s->resource_data; - unsigned int i, j, bad; - int any; - u_char *b, hole, most; - - dev_printk(KERN_INFO, &s->dev, "cs: IO port probe %#x-%#x:", - base, base+num-1); - - /* First, what does a floating port look like? */ - b = kzalloc(256, GFP_KERNEL); - if (!b) { - printk("\n"); - dev_printk(KERN_ERR, &s->dev, - "do_io_probe: unable to kmalloc 256 bytes"); - return; - } - for (i = base, most = 0; i < base+num; i += 8) { - res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA IO probe"); - if (!res) - continue; - hole = inb(i); - for (j = 1; j < 8; j++) - if (inb(i+j) != hole) break; - free_region(res); - if ((j == 8) && (++b[hole] > b[most])) - most = hole; - if (b[most] == 127) break; - } - kfree(b); - - bad = any = 0; - for (i = base; i < base+num; i += 8) { - res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA IO probe"); - if (!res) - continue; - for (j = 0; j < 8; j++) - if (inb(i+j) != most) break; - free_region(res); - if (j < 8) { - if (!any) - printk(" excluding"); - if (!bad) - bad = any = i; - } else { - if (bad) { - sub_interval(&s_data->io_db, bad, i-bad); - printk(" %#x-%#x", bad, i-1); - bad = 0; - } + struct resource *res; + struct socket_data *s_data = s->resource_data; + unsigned int i, j, bad; + int any; + u_char *b, hole, most; + + dev_printk(KERN_INFO, &s->dev, "cs: IO port probe %#x-%#x:", + base, base+num-1); + + /* First, what does a floating port look like? */ + b = kzalloc(256, GFP_KERNEL); + if (!b) { + printk("\n"); + dev_printk(KERN_ERR, &s->dev, + "do_io_probe: unable to kmalloc 256 bytes"); + return; } - } - if (bad) { - if ((num > 16) && (bad == base) && (i == base+num)) { - printk(" nothing: probe failed.\n"); - return; - } else { - sub_interval(&s_data->io_db, bad, i-bad); - printk(" %#x-%#x", bad, i-1); + for (i = base, most = 0; i < base+num; i += 8) { + res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); + if (!res) + continue; + hole = inb(i); + for (j = 1; j < 8; j++) + if (inb(i+j) != hole) + break; + free_region(res); + if ((j == 8) && (++b[hole] > b[most])) + most = hole; + if (b[most] == 127) + break; } - } + kfree(b); - printk(any ? "\n" : " clean.\n"); + bad = any = 0; + for (i = base; i < base+num; i += 8) { + res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); + if (!res) + continue; + for (j = 0; j < 8; j++) + if (inb(i+j) != most) + break; + free_region(res); + if (j < 8) { + if (!any) + printk(" excluding"); + if (!bad) + bad = any = i; + } else { + if (bad) { + sub_interval(&s_data->io_db, bad, i-bad); + printk(" %#x-%#x", bad, i-1); + bad = 0; + } + } + } + if (bad) { + if ((num > 16) && (bad == base) && (i == base+num)) { + printk(" nothing: probe failed.\n"); + return; + } else { + sub_interval(&s_data->io_db, bad, i-bad); + printk(" %#x-%#x", bad, i-1); + } + } + + printk(any ? "\n" : " clean.\n"); } #endif @@ -327,8 +331,9 @@ cis_readable(struct pcmcia_socket *s, unsigned long base, unsigned long size) unsigned int info1, info2; int ret = 0; - res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "cs memory probe"); - res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, "cs memory probe"); + res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); + res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, + "PCMCIA memprobe"); if (res1 && res2) { ret = readable(s, res1, &info1); @@ -347,8 +352,9 @@ checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size) struct resource *res1, *res2; int a = -1, b = -1; - res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "cs memory probe"); - res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, "cs memory probe"); + res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); + res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, + "PCMCIA memprobe"); if (res1 && res2) { a = checksum(s, res1); @@ -371,42 +377,43 @@ checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size) static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s) { - struct socket_data *s_data = s->resource_data; - u_long i, j, bad, fail, step; - - dev_printk(KERN_INFO, &s->dev, "cs: memory probe 0x%06lx-0x%06lx:", - base, base+num-1); - bad = fail = 0; - step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff); - /* don't allow too large steps */ - if (step > 0x800000) - step = 0x800000; - /* cis_readable wants to map 2x map_size */ - if (step < 2 * s->map_size) - step = 2 * s->map_size; - for (i = j = base; i < base+num; i = j + step) { - if (!fail) { - for (j = i; j < base+num; j += step) { - if (cis_readable(s, j, step)) - break; - } - fail = ((i == base) && (j == base+num)); - } - if (fail) { - for (j = i; j < base+num; j += 2*step) - if (checksum_match(s, j, step) && - checksum_match(s, j + step, step)) - break; - } - if (i != j) { - if (!bad) printk(" excluding"); - printk(" %#05lx-%#05lx", i, j-1); - sub_interval(&s_data->mem_db, i, j-i); - bad += j-i; + struct socket_data *s_data = s->resource_data; + u_long i, j, bad, fail, step; + + dev_printk(KERN_INFO, &s->dev, "cs: memory probe 0x%06lx-0x%06lx:", + base, base+num-1); + bad = fail = 0; + step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff); + /* don't allow too large steps */ + if (step > 0x800000) + step = 0x800000; + /* cis_readable wants to map 2x map_size */ + if (step < 2 * s->map_size) + step = 2 * s->map_size; + for (i = j = base; i < base+num; i = j + step) { + if (!fail) { + for (j = i; j < base+num; j += step) { + if (cis_readable(s, j, step)) + break; + } + fail = ((i == base) && (j == base+num)); + } + if (fail) { + for (j = i; j < base+num; j += 2*step) + if (checksum_match(s, j, step) && + checksum_match(s, j + step, step)) + break; + } + if (i != j) { + if (!bad) + printk(" excluding"); + printk(" %#05lx-%#05lx", i, j-1); + sub_interval(&s_data->mem_db, i, j-i); + bad += j-i; + } } - } - printk(bad ? "\n" : " clean.\n"); - return (num - bad); + printk(bad ? "\n" : " clean.\n"); + return num - bad; } #ifdef CONFIG_PCMCIA_PROBE @@ -656,7 +663,7 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num, return res; } -static struct resource * nonstatic_find_mem_region(u_long base, u_long num, +static struct resource *nonstatic_find_mem_region(u_long base, u_long num, u_long align, int low, struct pcmcia_socket *s) { struct resource *res = make_resource(0, num, IORESOURCE_MEM, dev_name(&s->dev)); @@ -794,7 +801,7 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s) return -EINVAL; #endif - for (i=0; i < PCI_BUS_NUM_RESOURCES; i++) { + for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { res = s->cb_dev->bus->resource[i]; if (!res) continue; @@ -908,14 +915,14 @@ static ssize_t show_io_db(struct device *dev, for (p = data->io_db.next; p != &data->io_db; p = p->next) { if (ret > (PAGE_SIZE - 10)) continue; - ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1), - "0x%08lx - 0x%08lx\n", - ((unsigned long) p->base), - ((unsigned long) p->base + p->num - 1)); + ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), + "0x%08lx - 0x%08lx\n", + ((unsigned long) p->base), + ((unsigned long) p->base + p->num - 1)); } mutex_unlock(&rsrc_mutex); - return (ret); + return ret; } static ssize_t store_io_db(struct device *dev, @@ -927,12 +934,13 @@ static ssize_t store_io_db(struct device *dev, unsigned int add = ADD_MANAGED_RESOURCE; ssize_t ret = 0; - ret = sscanf (buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); if (ret != 2) { - ret = sscanf (buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); add = REMOVE_MANAGED_RESOURCE; if (ret != 2) { - ret = sscanf (buf, "0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, + &end_addr); add = ADD_MANAGED_RESOURCE; if (ret != 2) return -EINVAL; @@ -963,14 +971,14 @@ static ssize_t show_mem_db(struct device *dev, for (p = data->mem_db.next; p != &data->mem_db; p = p->next) { if (ret > (PAGE_SIZE - 10)) continue; - ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1), - "0x%08lx - 0x%08lx\n", - ((unsigned long) p->base), - ((unsigned long) p->base + p->num - 1)); + ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), + "0x%08lx - 0x%08lx\n", + ((unsigned long) p->base), + ((unsigned long) p->base + p->num - 1)); } mutex_unlock(&rsrc_mutex); - return (ret); + return ret; } static ssize_t store_mem_db(struct device *dev, @@ -982,12 +990,13 @@ static ssize_t store_mem_db(struct device *dev, unsigned int add = ADD_MANAGED_RESOURCE; ssize_t ret = 0; - ret = sscanf (buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); if (ret != 2) { - ret = sscanf (buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); add = REMOVE_MANAGED_RESOURCE; if (ret != 2) { - ret = sscanf (buf, "0x%lx - 0x%lx", &start_addr, &end_addr); + ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, + &end_addr); add = ADD_MANAGED_RESOURCE; if (ret != 2) return -EINVAL; |