diff options
Diffstat (limited to 'drivers/pnp/isapnp/core.c')
| -rw-r--r-- | drivers/pnp/isapnp/core.c | 630 |
1 files changed, 297 insertions, 333 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c index beedd86800f..cf88f9b6244 100644 --- a/drivers/pnp/isapnp/core.c +++ b/drivers/pnp/isapnp/core.c @@ -1,6 +1,6 @@ /* * ISA Plug & Play support - * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * * * This program is free software; you can redistribute it and/or modify @@ -34,29 +34,27 @@ * 2003-08-11 Resource Management Updates - Adam Belay <ambx1@neo.rr.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/slab.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/isapnp.h> +#include <linux/mutex.h> #include <asm/io.h> +#include "../base.h" + #if 0 #define ISAPNP_REGION_OK #endif -#if 0 -#define ISAPNP_DEBUG -#endif -int isapnp_disable; /* Disable ISA PnP */ -static int isapnp_rdp; /* Read Data Port */ -static int isapnp_reset = 1; /* reset all PnP cards (deactivate) */ -static int isapnp_verbose = 1; /* verbose mode */ +int isapnp_disable; /* Disable ISA PnP */ +static int isapnp_rdp; /* Read Data Port */ +static int isapnp_reset = 1; /* reset all PnP cards (deactivate) */ +static int isapnp_verbose = 1; /* verbose mode */ -MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); +MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); MODULE_DESCRIPTION("Generic ISA Plug & Play support"); module_param(isapnp_disable, int, 0); MODULE_PARM_DESC(isapnp_disable, "ISA Plug & Play disable"); @@ -91,9 +89,25 @@ MODULE_LICENSE("GPL"); #define _LTAG_MEM32RANGE 0x85 #define _LTAG_FIXEDMEM32RANGE 0x86 +/* Logical device control and configuration registers */ + +#define ISAPNP_CFG_ACTIVATE 0x30 /* byte */ +#define ISAPNP_CFG_MEM 0x40 /* 4 * dword */ +#define ISAPNP_CFG_PORT 0x60 /* 8 * word */ +#define ISAPNP_CFG_IRQ 0x70 /* 2 * word */ +#define ISAPNP_CFG_DMA 0x74 /* 2 * byte */ + +/* + * Sizes of ISAPNP logical device configuration register sets. + * See PNP-ISA-v1.0a.pdf, Appendix A. + */ +#define ISAPNP_MAX_MEM 4 +#define ISAPNP_MAX_PORT 8 +#define ISAPNP_MAX_IRQ 2 +#define ISAPNP_MAX_DMA 2 + static unsigned char isapnp_checksum_value; -static DECLARE_MUTEX(isapnp_cfg_mutex); -static int isapnp_detected; +static DEFINE_MUTEX(isapnp_cfg_mutex); static int isapnp_csn_count; /* some prototypes */ @@ -126,7 +140,7 @@ static unsigned short isapnp_read_word(unsigned char idx) unsigned short val; val = isapnp_read_byte(idx); - val = (val << 8) + isapnp_read_byte(idx+1); + val = (val << 8) + isapnp_read_byte(idx + 1); return val; } @@ -139,7 +153,7 @@ void isapnp_write_byte(unsigned char idx, unsigned char val) static void isapnp_write_word(unsigned char idx, unsigned short val) { isapnp_write_byte(idx, val >> 8); - isapnp_write_byte(idx+1, val); + isapnp_write_byte(idx + 1, val); } static void isapnp_key(void) @@ -193,7 +207,7 @@ static void isapnp_deactivate(unsigned char logdev) static void __init isapnp_peek(unsigned char *data, int bytes) { int i, j; - unsigned char d=0; + unsigned char d = 0; for (i = 1; i <= bytes; i++) { for (j = 0; j < 20; j++) { @@ -220,19 +234,18 @@ static int isapnp_next_rdp(void) { int rdp = isapnp_rdp; static int old_rdp = 0; - - if(old_rdp) - { + + if (old_rdp) { release_region(old_rdp, 1); old_rdp = 0; } while (rdp <= 0x3ff) { /* - * We cannot use NE2000 probe spaces for ISAPnP or we - * will lock up machines. + * We cannot use NE2000 probe spaces for ISAPnP or we + * will lock up machines. */ - if ((rdp < 0x280 || rdp > 0x380) && request_region(rdp, 1, "ISAPnP")) - { + if ((rdp < 0x280 || rdp > 0x380) + && request_region(rdp, 1, "ISAPnP")) { isapnp_rdp = rdp; old_rdp = rdp; return 0; @@ -253,7 +266,6 @@ static inline void isapnp_set_rdp(void) * Perform an isolation. The port selection code now tries to avoid * "dangerous to read" ports. */ - static int __init isapnp_isolate_rdp_select(void) { isapnp_wait(); @@ -282,7 +294,6 @@ static int __init isapnp_isolate_rdp_select(void) /* * Isolate (assign uniqued CSN) to all ISA PnP devices. */ - static int __init isapnp_isolate(void) { unsigned char checksum = 0x6a; @@ -305,7 +316,9 @@ static int __init isapnp_isolate(void) udelay(250); if (data == 0x55aa) bit = 0x01; - checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1); + checksum = + ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) + | (checksum >> 1); bit = 0x00; } for (i = 65; i <= 72; i++) { @@ -336,7 +349,7 @@ static int __init isapnp_isolate(void) } else if (iteration > 1) { break; } - __next: +__next: if (csn == 255) break; checksum = 0x6a; @@ -351,13 +364,12 @@ static int __init isapnp_isolate(void) /* * Read one tag from stream. */ - static int __init isapnp_read_tag(unsigned char *type, unsigned short *size) { unsigned char tag, tmp[2]; isapnp_peek(&tag, 1); - if (tag == 0) /* invalid tag */ + if (tag == 0) /* invalid tag */ return -1; if (tag & 0x80) { /* large item */ *type = tag; @@ -367,11 +379,6 @@ static int __init isapnp_read_tag(unsigned char *type, unsigned short *size) *type = (tag >> 3) & 0x0f; *size = tag & 0x07; } -#if 0 - printk(KERN_DEBUG "tag = 0x%x, type = 0x%x, size = %i\n", tag, *type, *size); -#endif - if (type == 0) /* wrong type */ - return -1; if (*type == 0xff && *size == 0xffff) /* probably invalid data */ return -1; return 0; @@ -380,235 +387,189 @@ static int __init isapnp_read_tag(unsigned char *type, unsigned short *size) /* * Skip specified number of bytes from stream. */ - static void __init isapnp_skip_bytes(int count) { isapnp_peek(NULL, count); } /* - * Parse EISA id. - */ - -static void isapnp_parse_id(struct pnp_dev * dev, unsigned short vendor, unsigned short device) -{ - struct pnp_id * id; - if (!dev) - return; - id = kcalloc(1, sizeof(struct pnp_id), GFP_KERNEL); - if (!id) - return; - sprintf(id->id, "%c%c%c%x%x%x%x", - 'A' + ((vendor >> 2) & 0x3f) - 1, - 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1, - 'A' + ((vendor >> 8) & 0x1f) - 1, - (device >> 4) & 0x0f, - device & 0x0f, - (device >> 12) & 0x0f, - (device >> 8) & 0x0f); - pnp_add_id(id, dev); -} - -/* * Parse logical device tag. */ - -static struct pnp_dev * __init isapnp_parse_device(struct pnp_card *card, int size, int number) +static struct pnp_dev *__init isapnp_parse_device(struct pnp_card *card, + int size, int number) { unsigned char tmp[6]; struct pnp_dev *dev; + u32 eisa_id; + char id[8]; isapnp_peek(tmp, size); - dev = kcalloc(1, sizeof(struct pnp_dev), GFP_KERNEL); + eisa_id = tmp[0] | tmp[1] << 8 | tmp[2] << 16 | tmp[3] << 24; + pnp_eisa_id_to_string(eisa_id, id); + + dev = pnp_alloc_dev(&isapnp_protocol, number, id); if (!dev) return NULL; - dev->number = number; - isapnp_parse_id(dev, (tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]); - dev->regs = tmp[4]; + dev->card = card; - if (size > 5) - dev->regs |= tmp[5] << 8; - dev->protocol = &isapnp_protocol; dev->capabilities |= PNP_CONFIGURABLE; dev->capabilities |= PNP_READ; dev->capabilities |= PNP_WRITE; dev->capabilities |= PNP_DISABLE; - pnp_init_resource_table(&dev->res); + pnp_init_resources(dev); return dev; } - /* * Add IRQ resource to resources list. */ - -static void __init isapnp_parse_irq_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_irq_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[3]; - struct pnp_irq *irq; unsigned long bits; + pnp_irq_mask_t map; + unsigned char flags = IORESOURCE_IRQ_HIGHEDGE; isapnp_peek(tmp, size); - irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL); - if (!irq) - return; bits = (tmp[1] << 8) | tmp[0]; - bitmap_copy(irq->map, &bits, 16); + + bitmap_zero(map.bits, PNP_IRQ_NR); + bitmap_copy(map.bits, &bits, 16); + if (size > 2) - irq->flags = tmp[2]; - else - irq->flags = IORESOURCE_IRQ_HIGHEDGE; - pnp_register_irq_resource(option, irq); - return; + flags = tmp[2]; + + pnp_register_irq_resource(dev, option_flags, &map, flags); } /* * Add DMA resource to resources list. */ - -static void __init isapnp_parse_dma_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_dma_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[2]; - struct pnp_dma *dma; isapnp_peek(tmp, size); - dma = kcalloc(1, sizeof(struct pnp_dma), GFP_KERNEL); - if (!dma) - return; - dma->map = tmp[0]; - dma->flags = tmp[1]; - pnp_register_dma_resource(option, dma); - return; + pnp_register_dma_resource(dev, option_flags, tmp[0], tmp[1]); } /* * Add port resource to resources list. */ - -static void __init isapnp_parse_port_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_port_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[7]; - struct pnp_port *port; + resource_size_t min, max, align, len; + unsigned char flags; isapnp_peek(tmp, size); - port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL); - if (!port) - return; - port->min = (tmp[2] << 8) | tmp[1]; - port->max = (tmp[4] << 8) | tmp[3]; - port->align = tmp[5]; - port->size = tmp[6]; - port->flags = tmp[0] ? PNP_PORT_FLAG_16BITADDR : 0; - pnp_register_port_resource(option,port); - return; + min = (tmp[2] << 8) | tmp[1]; + max = (tmp[4] << 8) | tmp[3]; + align = tmp[5]; + len = tmp[6]; + flags = tmp[0] ? IORESOURCE_IO_16BIT_ADDR : 0; + pnp_register_port_resource(dev, option_flags, + min, max, align, len, flags); } /* * Add fixed port resource to resources list. */ - -static void __init isapnp_parse_fixed_port_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_fixed_port_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[3]; - struct pnp_port *port; + resource_size_t base, len; isapnp_peek(tmp, size); - port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL); - if (!port) - return; - port->min = port->max = (tmp[1] << 8) | tmp[0]; - port->size = tmp[2]; - port->align = 0; - port->flags = PNP_PORT_FLAG_FIXED; - pnp_register_port_resource(option,port); - return; + base = (tmp[1] << 8) | tmp[0]; + len = tmp[2]; + pnp_register_port_resource(dev, option_flags, base, base, 0, len, + IORESOURCE_IO_FIXED); } /* * Add memory resource to resources list. */ - -static void __init isapnp_parse_mem_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_mem_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[9]; - struct pnp_mem *mem; + resource_size_t min, max, align, len; + unsigned char flags; isapnp_peek(tmp, size); - mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); - if (!mem) - return; - mem->min = ((tmp[2] << 8) | tmp[1]) << 8; - mem->max = ((tmp[4] << 8) | tmp[3]) << 8; - mem->align = (tmp[6] << 8) | tmp[5]; - mem->size = ((tmp[8] << 8) | tmp[7]) << 8; - mem->flags = tmp[0]; - pnp_register_mem_resource(option,mem); - return; + min = ((tmp[2] << 8) | tmp[1]) << 8; + max = ((tmp[4] << 8) | tmp[3]) << 8; + align = (tmp[6] << 8) | tmp[5]; + len = ((tmp[8] << 8) | tmp[7]) << 8; + flags = tmp[0]; + pnp_register_mem_resource(dev, option_flags, + min, max, align, len, flags); } /* * Add 32-bit memory resource to resources list. */ - -static void __init isapnp_parse_mem32_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_mem32_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[17]; - struct pnp_mem *mem; + resource_size_t min, max, align, len; + unsigned char flags; isapnp_peek(tmp, size); - mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); - if (!mem) - return; - mem->min = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1]; - mem->max = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5]; - 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_register_mem_resource(option,mem); + min = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1]; + max = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5]; + align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9]; + len = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13]; + flags = tmp[0]; + pnp_register_mem_resource(dev, option_flags, + min, max, align, len, flags); } /* * Add 32-bit fixed memory resource to resources list. */ - -static void __init isapnp_parse_fixed_mem32_resource(struct pnp_option *option, - int size) +static void __init isapnp_parse_fixed_mem32_resource(struct pnp_dev *dev, + unsigned int option_flags, + int size) { unsigned char tmp[9]; - struct pnp_mem *mem; + resource_size_t base, len; + unsigned char flags; isapnp_peek(tmp, size); - mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); - if (!mem) - return; - mem->min = mem->max = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1]; - mem->size = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5]; - mem->align = 0; - mem->flags = tmp[0]; - pnp_register_mem_resource(option,mem); + base = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1]; + len = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5]; + flags = tmp[0]; + pnp_register_mem_resource(dev, option_flags, base, base, 0, len, flags); } /* * Parse card name for ISA PnP device. - */ - + */ static void __init isapnp_parse_name(char *name, unsigned int name_max, unsigned short *size) { if (name[0] == '\0') { - unsigned short size1 = *size >= name_max ? (name_max - 1) : *size; + unsigned short size1 = + *size >= name_max ? (name_max - 1) : *size; isapnp_peek(name, size1); name[size1] = '\0'; *size -= size1; /* clean whitespace from end of string */ - while (size1 > 0 && name[--size1] == ' ') + while (size1 > 0 && name[--size1] == ' ') name[size1] = '\0'; } } @@ -616,49 +577,49 @@ isapnp_parse_name(char *name, unsigned int name_max, unsigned short *size) /* * Parse resource map for logical device. */ - static int __init isapnp_create_device(struct pnp_card *card, unsigned short size) { - int number = 0, skip = 0, priority = 0, compat = 0; + int number = 0, skip = 0, priority, compat = 0; unsigned char type, tmp[17]; - struct pnp_option *option; + unsigned int option_flags; struct pnp_dev *dev; + u32 eisa_id; + char id[8]; + if ((dev = isapnp_parse_device(card, size, number++)) == NULL) return 1; - option = pnp_register_independent_option(dev); - if (!option) { - kfree(dev); - return 1; - } - pnp_add_card_device(card,dev); + option_flags = 0; + pnp_add_card_device(card, dev); while (1) { - if (isapnp_read_tag(&type, &size)<0) + if (isapnp_read_tag(&type, &size) < 0) return 1; if (skip && type != _STAG_LOGDEVID && type != _STAG_END) goto __skip; switch (type) { case _STAG_LOGDEVID: if (size >= 5 && size <= 6) { - if ((dev = isapnp_parse_device(card, size, number++)) == NULL) + if ((dev = + isapnp_parse_device(card, size, + number++)) == NULL) return 1; size = 0; skip = 0; - option = pnp_register_independent_option(dev); - if (!option) - return 1; - pnp_add_card_device(card,dev); + option_flags = 0; + pnp_add_card_device(card, dev); } else { skip = 1; } - priority = 0; compat = 0; break; case _STAG_COMPATDEVID: if (size == 4 && compat < DEVICE_COUNT_COMPATIBLE) { isapnp_peek(tmp, 4); - isapnp_parse_id(dev,(tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]); + eisa_id = tmp[0] | tmp[1] << 8 | + tmp[2] << 16 | tmp[3] << 24; + pnp_eisa_id_to_string(eisa_id, id); + pnp_add_id(dev, id); compat++; size = 0; } @@ -666,43 +627,42 @@ static int __init isapnp_create_device(struct pnp_card *card, case _STAG_IRQ: if (size < 2 || size > 3) goto __skip; - isapnp_parse_irq_resource(option, size); + isapnp_parse_irq_resource(dev, option_flags, size); size = 0; break; case _STAG_DMA: if (size != 2) goto __skip; - isapnp_parse_dma_resource(option, size); + isapnp_parse_dma_resource(dev, option_flags, size); size = 0; break; case _STAG_STARTDEP: if (size > 1) goto __skip; - priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE; + priority = PNP_RES_PRIORITY_ACCEPTABLE; if (size > 0) { isapnp_peek(tmp, size); - priority = 0x100 | tmp[0]; + priority = tmp[0]; size = 0; } - option = pnp_register_dependent_option(dev,priority); - if (!option) - return 1; + option_flags = pnp_new_dependent_set(dev, priority); break; case _STAG_ENDDEP: if (size != 0) goto __skip; - priority = 0; + option_flags = 0; break; case _STAG_IOPORT: if (size != 7) goto __skip; - isapnp_parse_port_resource(option, size); + isapnp_parse_port_resource(dev, option_flags, size); size = 0; break; case _STAG_FIXEDIO: if (size != 3) goto __skip; - isapnp_parse_fixed_port_resource(option, size); + isapnp_parse_fixed_port_resource(dev, option_flags, + size); size = 0; break; case _STAG_VENDOR: @@ -710,7 +670,7 @@ static int __init isapnp_create_device(struct pnp_card *card, case _LTAG_MEMRANGE: if (size != 9) goto __skip; - isapnp_parse_mem_resource(option, size); + isapnp_parse_mem_resource(dev, option_flags, size); size = 0; break; case _LTAG_ANSISTR: @@ -725,13 +685,14 @@ static int __init isapnp_create_device(struct pnp_card *card, case _LTAG_MEM32RANGE: if (size != 17) goto __skip; - isapnp_parse_mem32_resource(option, size); + isapnp_parse_mem32_resource(dev, option_flags, size); size = 0; break; case _LTAG_FIXEDMEM32RANGE: if (size != 9) goto __skip; - isapnp_parse_fixed_mem32_resource(option, size); + isapnp_parse_fixed_mem32_resource(dev, option_flags, + size); size = 0; break; case _STAG_END: @@ -739,11 +700,12 @@ static int __init isapnp_create_device(struct pnp_card *card, isapnp_skip_bytes(size); return 1; default: - printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for logical device %i (device %i), ignored\n", type, dev->number, card->number); + dev_err(&dev->dev, "unknown tag %#x (card %i), " + "ignored\n", type, card->number); } - __skip: - if (size > 0) - isapnp_skip_bytes(size); +__skip: + if (size > 0) + isapnp_skip_bytes(size); } return 0; } @@ -751,14 +713,13 @@ static int __init isapnp_create_device(struct pnp_card *card, /* * Parse resource map for ISA PnP card. */ - static void __init isapnp_parse_resource_map(struct pnp_card *card) { unsigned char type, tmp[17]; unsigned short size; while (1) { - if (isapnp_read_tag(&type, &size)<0) + if (isapnp_read_tag(&type, &size) < 0) return; switch (type) { case _STAG_PNPVERNO: @@ -771,7 +732,7 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card) break; case _STAG_LOGDEVID: if (size >= 5 && size <= 6) { - if (isapnp_create_device(card, size)==1) + if (isapnp_create_device(card, size) == 1) return; size = 0; } @@ -779,7 +740,8 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card) case _STAG_VENDOR: break; case _LTAG_ANSISTR: - isapnp_parse_name(card->name, sizeof(card->name), &size); + isapnp_parse_name(card->name, sizeof(card->name), + &size); break; case _LTAG_UNICODESTR: /* silently ignore */ @@ -792,18 +754,18 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card) isapnp_skip_bytes(size); return; default: - printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for device %i, ignored\n", type, card->number); + dev_err(&card->dev, "unknown tag %#x, ignored\n", + type); } - __skip: - if (size > 0) - isapnp_skip_bytes(size); +__skip: + if (size > 0) + isapnp_skip_bytes(size); } } /* * Compute ISA PnP checksum for first eight bytes. */ - static unsigned char __init isapnp_checksum(unsigned char *data) { int i, j; @@ -815,41 +777,24 @@ static unsigned char __init isapnp_checksum(unsigned char *data) bit = 0; if (b & (1 << j)) bit = 1; - checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1); + checksum = + ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) + | (checksum >> 1); } } return checksum; } /* - * Parse EISA id for ISA PnP card. - */ - -static void isapnp_parse_card_id(struct pnp_card * card, unsigned short vendor, unsigned short device) -{ - struct pnp_id * id = kcalloc(1, sizeof(struct pnp_id), GFP_KERNEL); - if (!id) - return; - sprintf(id->id, "%c%c%c%x%x%x%x", - 'A' + ((vendor >> 2) & 0x3f) - 1, - 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1, - 'A' + ((vendor >> 8) & 0x1f) - 1, - (device >> 4) & 0x0f, - device & 0x0f, - (device >> 12) & 0x0f, - (device >> 8) & 0x0f); - pnp_add_card_id(id,card); -} - -/* * Build device list for all present ISA PnP devices. */ - static int __init isapnp_build_device_list(void) { int csn; unsigned char header[9], checksum; struct pnp_card *card; + u32 eisa_id; + char id[8]; isapnp_wait(); isapnp_key(); @@ -857,25 +802,23 @@ static int __init isapnp_build_device_list(void) isapnp_wake(csn); isapnp_peek(header, 9); checksum = isapnp_checksum(header); -#if 0 - printk(KERN_DEBUG "vendor: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", - header[0], header[1], header[2], header[3], - header[4], header[5], header[6], header[7], header[8]); - printk(KERN_DEBUG "checksum = 0x%x\n", checksum); -#endif - if ((card = kcalloc(1, sizeof(struct pnp_card), GFP_KERNEL)) == NULL) + eisa_id = header[0] | header[1] << 8 | + header[2] << 16 | header[3] << 24; + pnp_eisa_id_to_string(eisa_id, id); + card = pnp_alloc_card(&isapnp_protocol, csn, id); + if (!card) continue; - card->number = csn; INIT_LIST_HEAD(&card->devices); - isapnp_parse_card_id(card, (header[1] << 8) | header[0], (header[3] << 8) | header[2]); - card->serial = (header[7] << 24) | (header[6] << 16) | (header[5] << 8) | header[4]; + card->serial = + (header[7] << 24) | (header[6] << 16) | (header[5] << 8) | + header[4]; isapnp_checksum_value = 0x00; isapnp_parse_resource_map(card); if (isapnp_checksum_value != 0x00) - printk(KERN_ERR "isapnp: checksum for device %i is not valid (0x%x)\n", csn, isapnp_checksum_value); + dev_err(&card->dev, "invalid checksum %#x\n", + isapnp_checksum_value); card->checksum = isapnp_checksum_value; - card->protocol = &isapnp_protocol; pnp_add_card(card); } @@ -890,6 +833,7 @@ static int __init isapnp_build_device_list(void) int isapnp_present(void) { struct pnp_card *card; + pnp_for_each_card(card) { if (card->protocol == &isapnp_protocol) return 1; @@ -901,7 +845,7 @@ int isapnp_cfg_begin(int csn, int logdev) { if (csn < 1 || csn > isapnp_csn_count || logdev > 10) return -EINVAL; - down(&isapnp_cfg_mutex); + mutex_lock(&isapnp_cfg_mutex); isapnp_wait(); isapnp_key(); isapnp_wake(csn); @@ -911,13 +855,13 @@ int isapnp_cfg_begin(int csn, int logdev) /* it is possible to set RDP only in the isolation phase */ /* Jens Thoms Toerring <Jens.Toerring@physik.fu-berlin.de> */ isapnp_write_byte(0x02, 0x04); /* clear CSN of card */ - mdelay(2); /* is this necessary? */ - isapnp_wake(csn); /* bring card into sleep state */ - isapnp_wake(0); /* bring card into isolation state */ - isapnp_set_rdp(); /* reset the RDP port */ - udelay(1000); /* delay 1000us */ + mdelay(2); /* is this necessary? */ + isapnp_wake(csn); /* bring card into sleep state */ + isapnp_wake(0); /* bring card into isolation state */ + isapnp_set_rdp(); /* reset the RDP port */ + udelay(1000); /* delay 1000us */ isapnp_write_byte(0x06, csn); /* reset CSN to previous value */ - udelay(250); /* is this necessary? */ + udelay(250); /* is this necessary? */ #endif if (logdev >= 0) isapnp_device(logdev); @@ -927,89 +871,101 @@ int isapnp_cfg_begin(int csn, int logdev) int isapnp_cfg_end(void) { isapnp_wait(); - up(&isapnp_cfg_mutex); + mutex_unlock(&isapnp_cfg_mutex); return 0; } - /* - * Inititialization. + * Initialization. */ - EXPORT_SYMBOL(isapnp_protocol); EXPORT_SYMBOL(isapnp_present); EXPORT_SYMBOL(isapnp_cfg_begin); EXPORT_SYMBOL(isapnp_cfg_end); -EXPORT_SYMBOL(isapnp_read_byte); EXPORT_SYMBOL(isapnp_write_byte); -static int isapnp_read_resources(struct pnp_dev *dev, struct pnp_resource_table *res) +static int isapnp_get_resources(struct pnp_dev *dev) { - int tmp, ret; + int i, ret; + pnp_dbg(&dev->dev, "get resources\n"); + pnp_init_resources(dev); + isapnp_cfg_begin(dev->card->number, dev->number); 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_word(ISAPNP_CFG_MEM + (tmp << 3)) << 8; - 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; - } + if (!dev->active) + goto __end; + + for (i = 0; i < ISAPNP_MAX_PORT; i++) { + ret = isapnp_read_word(ISAPNP_CFG_PORT + (i << 1)); + pnp_add_io_resource(dev, ret, ret, + ret == 0 ? IORESOURCE_DISABLED : 0); + } + for (i = 0; i < ISAPNP_MAX_MEM; i++) { + ret = isapnp_read_word(ISAPNP_CFG_MEM + (i << 3)) << 8; + pnp_add_mem_resource(dev, ret, ret, + ret == 0 ? IORESOURCE_DISABLED : 0); + } + for (i = 0; i < ISAPNP_MAX_IRQ; i++) { + ret = isapnp_read_word(ISAPNP_CFG_IRQ + (i << 1)) >> 8; + pnp_add_irq_resource(dev, ret, + ret == 0 ? IORESOURCE_DISABLED : 0); + } + for (i = 0; i < ISAPNP_MAX_DMA; i++) { + ret = isapnp_read_byte(ISAPNP_CFG_DMA + i); + pnp_add_dma_resource(dev, ret, + ret == 4 ? IORESOURCE_DISABLED : 0); } - return 0; -} -static int isapnp_get_resources(struct pnp_dev *dev, struct pnp_resource_table * res) -{ - int ret; - pnp_init_resource_table(res); - isapnp_cfg_begin(dev->card->number, dev->number); - ret = isapnp_read_resources(dev, res); +__end: isapnp_cfg_end(); - return ret; + return 0; } -static int isapnp_set_resources(struct pnp_dev *dev, struct pnp_resource_table * res) +static int isapnp_set_resources(struct pnp_dev *dev) { + struct resource *res; int tmp; + pnp_dbg(&dev->dev, "set resources\n"); isapnp_cfg_begin(dev->card->number, dev->number); dev->active = 1; - for (tmp = 0; tmp < PNP_MAX_PORT && (res->port_resource[tmp].flags & (IORESOURCE_IO | IORESOURCE_UNSET)) == IORESOURCE_IO; tmp++) - isapnp_write_word(ISAPNP_CFG_PORT+(tmp<<1), res->port_resource[tmp].start); - for (tmp = 0; tmp < PNP_MAX_IRQ && (res->irq_resource[tmp].flags & (IORESOURCE_IRQ | IORESOURCE_UNSET)) == IORESOURCE_IRQ; tmp++) { - int irq = res->irq_resource[tmp].start; - if (irq == 2) - irq = 9; - isapnp_write_byte(ISAPNP_CFG_IRQ+(tmp<<1), irq); + for (tmp = 0; tmp < ISAPNP_MAX_PORT; tmp++) { + res = pnp_get_resource(dev, IORESOURCE_IO, tmp); + if (pnp_resource_enabled(res)) { + pnp_dbg(&dev->dev, " set io %d to %#llx\n", + tmp, (unsigned long long) res->start); + isapnp_write_word(ISAPNP_CFG_PORT + (tmp << 1), + res->start); + } + } + for (tmp = 0; tmp < ISAPNP_MAX_IRQ; tmp++) { + res = pnp_get_resource(dev, IORESOURCE_IRQ, tmp); + if (pnp_resource_enabled(res)) { + int irq = res->start; + if (irq == 2) + irq = 9; + pnp_dbg(&dev->dev, " set irq %d to %d\n", tmp, irq); + isapnp_write_byte(ISAPNP_CFG_IRQ + (tmp << 1), irq); + } + } + for (tmp = 0; tmp < ISAPNP_MAX_DMA; tmp++) { + res = pnp_get_resource(dev, IORESOURCE_DMA, tmp); + if (pnp_resource_enabled(res)) { + pnp_dbg(&dev->dev, " set dma %d to %lld\n", + tmp, (unsigned long long) res->start); + isapnp_write_byte(ISAPNP_CFG_DMA + tmp, res->start); + } + } + for (tmp = 0; tmp < ISAPNP_MAX_MEM; tmp++) { + res = pnp_get_resource(dev, IORESOURCE_MEM, tmp); + if (pnp_resource_enabled(res)) { + pnp_dbg(&dev->dev, " set mem %d to %#llx\n", + tmp, (unsigned long long) res->start); + isapnp_write_word(ISAPNP_CFG_MEM + (tmp << 3), + (res->start >> 8) & 0xffff); + } } - for (tmp = 0; tmp < PNP_MAX_DMA && (res->dma_resource[tmp].flags & (IORESOURCE_DMA | IORESOURCE_UNSET)) == IORESOURCE_DMA; tmp++) - isapnp_write_byte(ISAPNP_CFG_DMA+tmp, res->dma_resource[tmp].start); - for (tmp = 0; tmp < PNP_MAX_MEM && (res->mem_resource[tmp].flags & (IORESOURCE_MEM | IORESOURCE_UNSET)) == IORESOURCE_MEM; tmp++) - isapnp_write_word(ISAPNP_CFG_MEM+(tmp<<3), (res->mem_resource[tmp].start >> 8) & 0xffff); /* FIXME: We aren't handling 32bit mems properly here */ isapnp_activate(dev->number); isapnp_cfg_end(); @@ -1018,7 +974,7 @@ static int isapnp_set_resources(struct pnp_dev *dev, struct pnp_resource_table * static int isapnp_disable_resources(struct pnp_dev *dev) { - if (!dev || !dev->active) + if (!dev->active) return -EINVAL; isapnp_cfg_begin(dev->card->number, dev->number); isapnp_deactivate(dev->number); @@ -1028,9 +984,9 @@ static int isapnp_disable_resources(struct pnp_dev *dev) } struct pnp_protocol isapnp_protocol = { - .name = "ISA Plug and Play", - .get = isapnp_get_resources, - .set = isapnp_set_resources, + .name = "ISA Plug and Play", + .get = isapnp_get_resources, + .set = isapnp_set_resources, .disable = isapnp_disable_resources, }; @@ -1041,37 +997,45 @@ static int __init isapnp_init(void) struct pnp_dev *dev; if (isapnp_disable) { - isapnp_detected = 0; printk(KERN_INFO "isapnp: ISA Plug & Play support disabled\n"); return 0; } +#ifdef CONFIG_PPC + if (check_legacy_ioport(_PIDXR) || check_legacy_ioport(_PNPWRP)) + return -EINVAL; +#endif #ifdef ISAPNP_REGION_OK if (!request_region(_PIDXR, 1, "isapnp index")) { - printk(KERN_ERR "isapnp: Index Register 0x%x already used\n", _PIDXR); + printk(KERN_ERR "isapnp: Index Register 0x%x already used\n", + _PIDXR); return -EBUSY; } #endif if (!request_region(_PNPWRP, 1, "isapnp write")) { - printk(KERN_ERR "isapnp: Write Data Register 0x%x already used\n", _PNPWRP); + printk(KERN_ERR + "isapnp: Write Data Register 0x%x already used\n", + _PNPWRP); #ifdef ISAPNP_REGION_OK release_region(_PIDXR, 1); #endif return -EBUSY; } - if(pnp_register_protocol(&isapnp_protocol)<0) + if (pnp_register_protocol(&isapnp_protocol) < 0) return -EBUSY; /* - * Print a message. The existing ISAPnP code is hanging machines - * so let the user know where. + * Print a message. The existing ISAPnP code is hanging machines + * so let the user know where. */ - + printk(KERN_INFO "isapnp: Scanning for PnP cards...\n"); if (isapnp_rdp >= 0x203 && isapnp_rdp <= 0x3ff) { isapnp_rdp |= 3; if (!request_region(isapnp_rdp, 1, "isapnp read")) { - printk(KERN_ERR "isapnp: Read Data Register 0x%x already used\n", isapnp_rdp); + printk(KERN_ERR + "isapnp: Read Data Register 0x%x already used\n", + isapnp_rdp); #ifdef ISAPNP_REGION_OK release_region(_PIDXR, 1); #endif @@ -1080,17 +1044,15 @@ static int __init isapnp_init(void) } isapnp_set_rdp(); } - isapnp_detected = 1; if (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff) { cards = isapnp_isolate(); - if (cards < 0 || - (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) { + if (cards < 0 || (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) { #ifdef ISAPNP_REGION_OK release_region(_PIDXR, 1); #endif release_region(_PNPWRP, 1); - isapnp_detected = 0; - printk(KERN_INFO "isapnp: No Plug & Play device found\n"); + printk(KERN_INFO + "isapnp: No Plug & Play device found\n"); return 0; } request_region(isapnp_rdp, 1, "isapnp read"); @@ -1098,22 +1060,25 @@ static int __init isapnp_init(void) isapnp_build_device_list(); cards = 0; - protocol_for_each_card(&isapnp_protocol,card) { + protocol_for_each_card(&isapnp_protocol, card) { cards++; if (isapnp_verbose) { - printk(KERN_INFO "isapnp: Card '%s'\n", card->name[0]?card->name:"Unknown"); + dev_info(&card->dev, "card '%s'\n", + card->name[0] ? card->name : "unknown"); if (isapnp_verbose < 2) continue; - card_for_each_dev(card,dev) { - printk(KERN_INFO "isapnp: Device '%s'\n", dev->name[0]?dev->name:"Unknown"); + card_for_each_dev(card, dev) { + dev_info(&card->dev, "device '%s'\n", + dev->name[0] ? dev->name : "unknown"); } } } - if (cards) { - printk(KERN_INFO "isapnp: %i Plug & Play card%s detected total\n", cards, cards>1?"s":""); - } else { + if (cards) + printk(KERN_INFO + "isapnp: %i Plug & Play card%s detected total\n", cards, + cards > 1 ? "s" : ""); + else printk(KERN_INFO "isapnp: No Plug & Play card found\n"); - } isapnp_proc_init(); return 0; @@ -1135,11 +1100,10 @@ __setup("noisapnp", isapnp_setup_disable); 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_verbose) == 2)); + (void)((get_option(&str, &isapnp_rdp) == 2) && + (get_option(&str, &isapnp_reset) == 2) && + (get_option(&str, &isapnp_verbose) == 2)); return 1; } __setup("isapnp=", isapnp_setup_isapnp); - |
