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drivers/pcmcia/cistpl.c
35.1 KB
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/* * cistpl.c -- 16-bit PCMCIA Card Information Structure parser * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * The initial developer of the original code is David A. Hinds * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. * * (C) 1999 David A. Hinds */ |
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#include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/major.h> #include <linux/errno.h> #include <linux/timer.h> #include <linux/slab.h> #include <linux/mm.h> |
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#include <linux/pci.h> #include <linux/ioport.h> |
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#include <linux/io.h> |
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#include <asm/byteorder.h> |
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#include <asm/unaligned.h> |
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|
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#include <pcmcia/ss.h> |
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#include <pcmcia/cisreg.h> #include <pcmcia/cistpl.h> #include "cs_internal.h" static const u_char mantissa[] = { 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80, 90 }; static const u_int exponent[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 }; /* Convert an extended speed byte to a time in nanoseconds */ #define SPEED_CVT(v) \ (mantissa[(((v)>>3)&15)-1] * exponent[(v)&7] / 10) /* Convert a power byte to a current in 0.1 microamps */ #define POWER_CVT(v) \ (mantissa[((v)>>3)&15] * exponent[(v)&7] / 10) #define POWER_SCALE(v) (exponent[(v)&7]) /* Upper limit on reasonable # of tuples */ #define MAX_TUPLES 200 |
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/* Bits in IRQInfo1 field */ #define IRQ_INFO2_VALID 0x10 |
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/* 16-bit CIS? */ static int cis_width; module_param(cis_width, int, 0444); |
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void release_cis_mem(struct pcmcia_socket *s) { |
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mutex_lock(&s->ops_mutex); if (s->cis_mem.flags & MAP_ACTIVE) { s->cis_mem.flags &= ~MAP_ACTIVE; s->ops->set_mem_map(s, &s->cis_mem); if (s->cis_mem.res) { release_resource(s->cis_mem.res); kfree(s->cis_mem.res); s->cis_mem.res = NULL; } iounmap(s->cis_virt); s->cis_virt = NULL; |
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} |
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mutex_unlock(&s->ops_mutex); |
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} |
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/** * set_cis_map() - map the card memory at "card_offset" into virtual space. * |
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* If flags & MAP_ATTRIB, map the attribute space, otherwise * map the memory space. |
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* * Must be called with ops_mutex held. |
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*/ |
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static void __iomem *set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags) |
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{ |
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pccard_mem_map *mem = &s->cis_mem; int ret; if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) { |
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mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s); |
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if (mem->res == NULL) { |
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dev_notice(&s->dev, "cs: unable to map card memory! "); |
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return NULL; } s->cis_virt = NULL; |
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} |
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if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt)) s->cis_virt = ioremap(mem->res->start, s->map_size); mem->card_start = card_offset; mem->flags = flags; ret = s->ops->set_mem_map(s, mem); if (ret) { iounmap(s->cis_virt); s->cis_virt = NULL; return NULL; } if (s->features & SS_CAP_STATIC_MAP) { if (s->cis_virt) iounmap(s->cis_virt); s->cis_virt = ioremap(mem->static_start, s->map_size); } return s->cis_virt; |
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} |
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/* Bits in attr field */ #define IS_ATTR 1 #define IS_INDIRECT 8 |
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/** * pcmcia_read_cis_mem() - low-level function to read CIS memory |
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* * must be called with ops_mutex held |
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*/ |
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int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, |
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u_int len, void *ptr) { |
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void __iomem *sys, *end; unsigned char *buf = ptr; |
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|
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dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u) ", attr, addr, len); |
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if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN; if (attr & IS_ATTR) { addr *= 2; flags = ICTRL0_AUTOINC; } |
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sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0)); if (!sys) { dev_dbg(&s->dev, "could not map memory "); memset(ptr, 0xff, len); |
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return -1; } writeb(flags, sys+CISREG_ICTRL0); writeb(addr & 0xff, sys+CISREG_IADDR0); writeb((addr>>8) & 0xff, sys+CISREG_IADDR1); writeb((addr>>16) & 0xff, sys+CISREG_IADDR2); writeb((addr>>24) & 0xff, sys+CISREG_IADDR3); for ( ; len > 0; len--, buf++) *buf = readb(sys+CISREG_IDATA0); } else { u_int inc = 1, card_offset, flags; |
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if (addr > CISTPL_MAX_CIS_SIZE) { |
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dev_dbg(&s->dev, "attempt to read CIS mem at addr %#x", addr); |
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memset(ptr, 0xff, len); return -1; } |
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flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0); if (attr) { flags |= MAP_ATTRIB; inc++; addr *= 2; } card_offset = addr & ~(s->map_size-1); while (len) { sys = set_cis_map(s, card_offset, flags); if (!sys) { dev_dbg(&s->dev, "could not map memory "); memset(ptr, 0xff, len); |
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return -1; } end = sys + s->map_size; sys = sys + (addr & (s->map_size-1)); for ( ; len > 0; len--, buf++, sys += inc) { if (sys == end) break; *buf = readb(sys); } card_offset += s->map_size; addr = 0; } |
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} |
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dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ... ", *(u_char *)(ptr+0), *(u_char *)(ptr+1), *(u_char *)(ptr+2), *(u_char *)(ptr+3)); return 0; |
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} |
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/** * pcmcia_write_cis_mem() - low-level function to write CIS memory * |
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* Probably only useful for writing one-byte registers. Must be called * with ops_mutex held. |
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*/ |
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int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, |
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u_int len, void *ptr) { |
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void __iomem *sys, *end; unsigned char *buf = ptr; |
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dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u) ", attr, addr, len); |
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|
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if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN; if (attr & IS_ATTR) { addr *= 2; flags = ICTRL0_AUTOINC; } |
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|
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sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0)); if (!sys) { dev_dbg(&s->dev, "could not map memory "); |
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return -EINVAL; |
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} |
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writeb(flags, sys+CISREG_ICTRL0); writeb(addr & 0xff, sys+CISREG_IADDR0); writeb((addr>>8) & 0xff, sys+CISREG_IADDR1); writeb((addr>>16) & 0xff, sys+CISREG_IADDR2); writeb((addr>>24) & 0xff, sys+CISREG_IADDR3); for ( ; len > 0; len--, buf++) writeb(*buf, sys+CISREG_IDATA0); } else { u_int inc = 1, card_offset, flags; |
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|
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flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0); if (attr & IS_ATTR) { flags |= MAP_ATTRIB; inc++; addr *= 2; } |
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|
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card_offset = addr & ~(s->map_size-1); while (len) { sys = set_cis_map(s, card_offset, flags); if (!sys) { dev_dbg(&s->dev, "could not map memory "); |
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return -EINVAL; |
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} end = sys + s->map_size; sys = sys + (addr & (s->map_size-1)); for ( ; len > 0; len--, buf++, sys += inc) { if (sys == end) break; writeb(*buf, sys); } card_offset += s->map_size; addr = 0; } } |
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return 0; |
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} |
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/** * read_cis_cache() - read CIS memory or its associated cache * * This is a wrapper around read_cis_mem, with the same interface, * but which caches information, for cards whose CIS may not be * readable all the time. */ |
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static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, size_t len, void *ptr) |
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{ |
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struct cis_cache_entry *cis; |
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int ret = 0; |
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|
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if (s->state & SOCKET_CARDBUS) |
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return -EINVAL; |
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|
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mutex_lock(&s->ops_mutex); |
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if (s->fake_cis) { if (s->fake_cis_len >= addr+len) memcpy(ptr, s->fake_cis+addr, len); |
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else { |
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memset(ptr, 0xff, len); |
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ret = -EINVAL; } |
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mutex_unlock(&s->ops_mutex); |
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return ret; |
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} list_for_each_entry(cis, &s->cis_cache, node) { if (cis->addr == addr && cis->len == len && cis->attr == attr) { memcpy(ptr, cis->cache, len); |
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mutex_unlock(&s->ops_mutex); |
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return 0; |
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} |
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} |
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|
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ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr); |
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if (ret == 0) { /* Copy data into the cache */ cis = kmalloc(sizeof(struct cis_cache_entry) + len, GFP_KERNEL); if (cis) { cis->addr = addr; cis->len = len; cis->attr = attr; memcpy(cis->cache, ptr, len); list_add(&cis->node, &s->cis_cache); } } |
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mutex_unlock(&s->ops_mutex); |
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return ret; |
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} static void remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len) { struct cis_cache_entry *cis; |
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mutex_lock(&s->ops_mutex); |
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list_for_each_entry(cis, &s->cis_cache, node) if (cis->addr == addr && cis->len == len && cis->attr == attr) { list_del(&cis->node); kfree(cis); break; } |
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mutex_unlock(&s->ops_mutex); |
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} |
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/** * destroy_cis_cache() - destroy the CIS cache * @s: pcmcia_socket for which CIS cache shall be destroyed * |
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* This destroys the CIS cache but keeps any fake CIS alive. Must be * called with ops_mutex held. |
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*/ |
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void destroy_cis_cache(struct pcmcia_socket *s) { struct list_head *l, *n; |
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struct cis_cache_entry *cis; |
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list_for_each_safe(l, n, &s->cis_cache) { |
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cis = list_entry(l, struct cis_cache_entry, node); |
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list_del(&cis->node); kfree(cis); } |
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} |
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|
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/** * verify_cis_cache() - does the CIS match what is in the CIS cache? */ |
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int verify_cis_cache(struct pcmcia_socket *s) { struct cis_cache_entry *cis; char *buf; |
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int ret; |
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|
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if (s->state & SOCKET_CARDBUS) return -EINVAL; |
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buf = kmalloc(256, GFP_KERNEL); |
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if (buf == NULL) { |
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dev_warn(&s->dev, "no memory for verifying CIS "); |
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return -ENOMEM; |
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} |
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mutex_lock(&s->ops_mutex); |
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list_for_each_entry(cis, &s->cis_cache, node) { int len = cis->len; if (len > 256) len = 256; |
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|
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ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf); if (ret || memcmp(buf, cis->cache, len) != 0) { |
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kfree(buf); |
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mutex_unlock(&s->ops_mutex); |
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return -1; } } kfree(buf); |
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mutex_unlock(&s->ops_mutex); |
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return 0; } |
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/** * pcmcia_replace_cis() - use a replacement CIS instead of the card's CIS * * For really bad cards, we provide a facility for uploading a * replacement CIS. */ |
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int pcmcia_replace_cis(struct pcmcia_socket *s, const u8 *data, const size_t len) |
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{ |
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if (len > CISTPL_MAX_CIS_SIZE) { |
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dev_warn(&s->dev, "replacement CIS too big "); |
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return -EINVAL; } |
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mutex_lock(&s->ops_mutex); |
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kfree(s->fake_cis); s->fake_cis = kmalloc(len, GFP_KERNEL); if (s->fake_cis == NULL) { |
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dev_warn(&s->dev, "no memory to replace CIS "); |
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mutex_unlock(&s->ops_mutex); |
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return -ENOMEM; } s->fake_cis_len = len; memcpy(s->fake_cis, data, len); |
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dev_info(&s->dev, "Using replacement CIS "); |
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mutex_unlock(&s->ops_mutex); |
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return 0; |
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} |
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/* The high-level CIS tuple services */ |
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|
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struct tuple_flags { |
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u_int link_space:4; u_int has_link:1; u_int mfc_fn:3; u_int space:4; |
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}; |
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|
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#define LINK_SPACE(f) (((struct tuple_flags *)(&(f)))->link_space) #define HAS_LINK(f) (((struct tuple_flags *)(&(f)))->has_link) #define MFC_FN(f) (((struct tuple_flags *)(&(f)))->mfc_fn) #define SPACE(f) (((struct tuple_flags *)(&(f)))->space) |
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|
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int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple) |
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{ |
6e83ee075 pcmcia: CodingSty... |
450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 |
if (!s) return -EINVAL; if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) return -ENODEV; tuple->TupleLink = tuple->Flags = 0; /* Assume presence of a LONGLINK_C to address 0 */ tuple->CISOffset = tuple->LinkOffset = 0; SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1; if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) { cisdata_t req = tuple->DesiredTuple; tuple->DesiredTuple = CISTPL_LONGLINK_MFC; if (pccard_get_next_tuple(s, function, tuple) == 0) { tuple->DesiredTuple = CISTPL_LINKTARGET; if (pccard_get_next_tuple(s, function, tuple) != 0) return -ENOSPC; } else tuple->CISOffset = tuple->TupleLink = 0; tuple->DesiredTuple = req; } return pccard_get_next_tuple(s, function, tuple); |
1da177e4c Linux-2.6.12-rc2 |
473 |
} |
1da177e4c Linux-2.6.12-rc2 |
474 475 476 |
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple) { |
6e83ee075 pcmcia: CodingSty... |
477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 |
u_char link[5]; u_int ofs; int ret; if (MFC_FN(tuple->Flags)) { /* Get indirect link from the MFC tuple */ ret = read_cis_cache(s, LINK_SPACE(tuple->Flags), tuple->LinkOffset, 5, link); if (ret) return -1; ofs = get_unaligned_le32(link + 1); SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR); /* Move to the next indirect link */ tuple->LinkOffset += 5; MFC_FN(tuple->Flags)--; } else if (HAS_LINK(tuple->Flags)) { ofs = tuple->LinkOffset; SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags); HAS_LINK(tuple->Flags) = 0; } else |
d700518a0 pcmcia: use read_... |
497 |
return -1; |
6e83ee075 pcmcia: CodingSty... |
498 499 500 501 502 503 504 505 506 507 508 509 510 511 |
if (SPACE(tuple->Flags)) { /* This is ugly, but a common CIS error is to code the long link offset incorrectly, so we check the right spot... */ ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); if (ret) return -1; if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && (strncmp(link+2, "CIS", 3) == 0)) return ofs; remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5); /* Then, we try the wrong spot... */ ofs = ofs >> 1; } |
d700518a0 pcmcia: use read_... |
512 513 514 |
ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); if (ret) return -1; |
1da177e4c Linux-2.6.12-rc2 |
515 |
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && |
6e83ee075 pcmcia: CodingSty... |
516 517 |
(strncmp(link+2, "CIS", 3) == 0)) return ofs; |
1da177e4c Linux-2.6.12-rc2 |
518 |
remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5); |
6e83ee075 pcmcia: CodingSty... |
519 |
return -1; |
1da177e4c Linux-2.6.12-rc2 |
520 |
} |
6e83ee075 pcmcia: CodingSty... |
521 522 |
int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple) |
1da177e4c Linux-2.6.12-rc2 |
523 |
{ |
6e83ee075 pcmcia: CodingSty... |
524 525 526 |
u_char link[2], tmp; int ofs, i, attr; int ret; |
9fea84f46 pcmcia: CodingSty... |
527 |
|
6e83ee075 pcmcia: CodingSty... |
528 529 530 531 |
if (!s) return -EINVAL; if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
532 |
|
6e83ee075 pcmcia: CodingSty... |
533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 |
link[1] = tuple->TupleLink; ofs = tuple->CISOffset + tuple->TupleLink; attr = SPACE(tuple->Flags); for (i = 0; i < MAX_TUPLES; i++) { if (link[1] == 0xff) link[0] = CISTPL_END; else { ret = read_cis_cache(s, attr, ofs, 2, link); if (ret) return -1; if (link[0] == CISTPL_NULL) { ofs++; continue; } |
1da177e4c Linux-2.6.12-rc2 |
548 |
} |
9fea84f46 pcmcia: CodingSty... |
549 |
|
6e83ee075 pcmcia: CodingSty... |
550 551 552 553 554 555 556 557 558 559 |
/* End of chain? Follow long link if possible */ if (link[0] == CISTPL_END) { ofs = follow_link(s, tuple); if (ofs < 0) return -ENOSPC; attr = SPACE(tuple->Flags); ret = read_cis_cache(s, attr, ofs, 2, link); if (ret) return -1; } |
1da177e4c Linux-2.6.12-rc2 |
560 |
|
6e83ee075 pcmcia: CodingSty... |
561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 |
/* Is this a link tuple? Make a note of it */ if ((link[0] == CISTPL_LONGLINK_A) || (link[0] == CISTPL_LONGLINK_C) || (link[0] == CISTPL_LONGLINK_MFC) || (link[0] == CISTPL_LINKTARGET) || (link[0] == CISTPL_INDIRECT) || (link[0] == CISTPL_NO_LINK)) { switch (link[0]) { case CISTPL_LONGLINK_A: HAS_LINK(tuple->Flags) = 1; LINK_SPACE(tuple->Flags) = attr | IS_ATTR; ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); if (ret) return -1; break; case CISTPL_LONGLINK_C: HAS_LINK(tuple->Flags) = 1; LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR; ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); if (ret) return -1; break; case CISTPL_INDIRECT: HAS_LINK(tuple->Flags) = 1; LINK_SPACE(tuple->Flags) = IS_ATTR | IS_INDIRECT; tuple->LinkOffset = 0; break; case CISTPL_LONGLINK_MFC: tuple->LinkOffset = ofs + 3; LINK_SPACE(tuple->Flags) = attr; if (function == BIND_FN_ALL) { /* Follow all the MFC links */ ret = read_cis_cache(s, attr, ofs+2, 1, &tmp); if (ret) return -1; MFC_FN(tuple->Flags) = tmp; } else { /* Follow exactly one of the links */ MFC_FN(tuple->Flags) = 1; tuple->LinkOffset += function * 5; } break; case CISTPL_NO_LINK: HAS_LINK(tuple->Flags) = 0; break; } if ((tuple->Attributes & TUPLE_RETURN_LINK) && (tuple->DesiredTuple == RETURN_FIRST_TUPLE)) break; } else if (tuple->DesiredTuple == RETURN_FIRST_TUPLE) break; if (link[0] == tuple->DesiredTuple) break; ofs += link[1] + 2; } if (i == MAX_TUPLES) { dev_dbg(&s->dev, "cs: overrun in pcmcia_get_next_tuple "); return -ENOSPC; } |
1da177e4c Linux-2.6.12-rc2 |
627 |
|
6e83ee075 pcmcia: CodingSty... |
628 629 630 631 632 |
tuple->TupleCode = link[0]; tuple->TupleLink = link[1]; tuple->CISOffset = ofs + 2; return 0; } |
1da177e4c Linux-2.6.12-rc2 |
633 634 635 |
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple) { |
6e83ee075 pcmcia: CodingSty... |
636 637 |
u_int len; int ret; |
1da177e4c Linux-2.6.12-rc2 |
638 |
|
6e83ee075 pcmcia: CodingSty... |
639 640 |
if (!s) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
641 |
|
6e83ee075 pcmcia: CodingSty... |
642 643 644 645 646 647 648 649 650 651 652 653 |
if (tuple->TupleLink < tuple->TupleOffset) return -ENOSPC; len = tuple->TupleLink - tuple->TupleOffset; tuple->TupleDataLen = tuple->TupleLink; if (len == 0) return 0; ret = read_cis_cache(s, SPACE(tuple->Flags), tuple->CISOffset + tuple->TupleOffset, min(len, (u_int) tuple->TupleDataMax), tuple->TupleData); if (ret) return -1; |
4c89e88bf pcmcia: deprecate... |
654 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
655 |
} |
1da177e4c Linux-2.6.12-rc2 |
656 |
|
6e83ee075 pcmcia: CodingSty... |
657 |
/* Parsing routines for individual tuples */ |
1da177e4c Linux-2.6.12-rc2 |
658 659 660 |
static int parse_device(tuple_t *tuple, cistpl_device_t *device) { |
6e83ee075 pcmcia: CodingSty... |
661 662 663 |
int i; u_char scale; u_char *p, *q; |
1da177e4c Linux-2.6.12-rc2 |
664 |
|
6e83ee075 pcmcia: CodingSty... |
665 666 |
p = (u_char *)tuple->TupleData; q = p + tuple->TupleDataLen; |
1da177e4c Linux-2.6.12-rc2 |
667 |
|
6e83ee075 pcmcia: CodingSty... |
668 669 |
device->ndev = 0; for (i = 0; i < CISTPL_MAX_DEVICES; i++) { |
9fea84f46 pcmcia: CodingSty... |
670 |
|
6e83ee075 pcmcia: CodingSty... |
671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 |
if (*p == 0xff) break; device->dev[i].type = (*p >> 4); device->dev[i].wp = (*p & 0x08) ? 1 : 0; switch (*p & 0x07) { case 0: device->dev[i].speed = 0; break; case 1: device->dev[i].speed = 250; break; case 2: device->dev[i].speed = 200; break; case 3: device->dev[i].speed = 150; break; case 4: device->dev[i].speed = 100; break; case 7: |
9fea84f46 pcmcia: CodingSty... |
692 693 |
if (++p == q) return -EINVAL; |
6e83ee075 pcmcia: CodingSty... |
694 695 696 697 698 699 700 701 |
device->dev[i].speed = SPEED_CVT(*p); while (*p & 0x80) if (++p == q) return -EINVAL; break; default: return -EINVAL; } |
1da177e4c Linux-2.6.12-rc2 |
702 |
|
6e83ee075 pcmcia: CodingSty... |
703 704 705 706 707 708 709 710 711 712 713 714 |
if (++p == q) return -EINVAL; if (*p == 0xff) break; scale = *p & 7; if (scale == 7) return -EINVAL; device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2)); device->ndev++; if (++p == q) break; } |
9fea84f46 pcmcia: CodingSty... |
715 |
|
6e83ee075 pcmcia: CodingSty... |
716 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
717 |
} |
1da177e4c Linux-2.6.12-rc2 |
718 719 720 |
static int parse_checksum(tuple_t *tuple, cistpl_checksum_t *csum) { |
6e83ee075 pcmcia: CodingSty... |
721 722 723 724 725 726 727 728 |
u_char *p; if (tuple->TupleDataLen < 5) return -EINVAL; p = (u_char *) tuple->TupleData; csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2; csum->len = get_unaligned_le16(p + 2); csum->sum = *(p + 4); return 0; |
1da177e4c Linux-2.6.12-rc2 |
729 |
} |
1da177e4c Linux-2.6.12-rc2 |
730 731 732 |
static int parse_longlink(tuple_t *tuple, cistpl_longlink_t *link) { |
6e83ee075 pcmcia: CodingSty... |
733 734 735 736 |
if (tuple->TupleDataLen < 4) return -EINVAL; link->addr = get_unaligned_le32(tuple->TupleData); return 0; |
1da177e4c Linux-2.6.12-rc2 |
737 |
} |
1da177e4c Linux-2.6.12-rc2 |
738 |
|
6e83ee075 pcmcia: CodingSty... |
739 |
static int parse_longlink_mfc(tuple_t *tuple, cistpl_longlink_mfc_t *link) |
1da177e4c Linux-2.6.12-rc2 |
740 |
{ |
6e83ee075 pcmcia: CodingSty... |
741 742 743 744 745 746 747 748 749 750 751 752 753 754 |
u_char *p; int i; p = (u_char *)tuple->TupleData; link->nfn = *p; p++; if (tuple->TupleDataLen <= link->nfn*5) return -EINVAL; for (i = 0; i < link->nfn; i++) { link->fn[i].space = *p; p++; link->fn[i].addr = get_unaligned_le32(p); p += 4; } return 0; |
1da177e4c Linux-2.6.12-rc2 |
755 |
} |
1da177e4c Linux-2.6.12-rc2 |
756 757 758 759 |
static int parse_strings(u_char *p, u_char *q, int max, char *s, u_char *ofs, u_char *found) { |
6e83ee075 pcmcia: CodingSty... |
760 |
int i, j, ns; |
1da177e4c Linux-2.6.12-rc2 |
761 |
|
6e83ee075 pcmcia: CodingSty... |
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 |
if (p == q) return -EINVAL; ns = 0; j = 0; for (i = 0; i < max; i++) { if (*p == 0xff) break; ofs[i] = j; ns++; for (;;) { s[j++] = (*p == 0xff) ? '\0' : *p; if ((*p == '\0') || (*p == 0xff)) break; if (++p == q) return -EINVAL; } if ((*p == 0xff) || (++p == q)) break; |
1da177e4c Linux-2.6.12-rc2 |
779 |
} |
6e83ee075 pcmcia: CodingSty... |
780 781 782 783 |
if (found) { *found = ns; return 0; } |
3f9c5f4cb pcmcia: deprecate... |
784 |
return (ns == max) ? 0 : -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
785 |
} |
1da177e4c Linux-2.6.12-rc2 |
786 787 788 |
static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1) { |
6e83ee075 pcmcia: CodingSty... |
789 |
u_char *p, *q; |
9fea84f46 pcmcia: CodingSty... |
790 |
|
6e83ee075 pcmcia: CodingSty... |
791 792 |
p = (u_char *)tuple->TupleData; q = p + tuple->TupleDataLen; |
9fea84f46 pcmcia: CodingSty... |
793 |
|
6e83ee075 pcmcia: CodingSty... |
794 795 796 797 |
vers_1->major = *p; p++; vers_1->minor = *p; p++; if (p >= q) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
798 |
|
6e83ee075 pcmcia: CodingSty... |
799 800 |
return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS, vers_1->str, vers_1->ofs, &vers_1->ns); |
1da177e4c Linux-2.6.12-rc2 |
801 |
} |
1da177e4c Linux-2.6.12-rc2 |
802 803 804 |
static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr) { |
6e83ee075 pcmcia: CodingSty... |
805 |
u_char *p, *q; |
9fea84f46 pcmcia: CodingSty... |
806 |
|
6e83ee075 pcmcia: CodingSty... |
807 808 |
p = (u_char *)tuple->TupleData; q = p + tuple->TupleDataLen; |
9fea84f46 pcmcia: CodingSty... |
809 |
|
6e83ee075 pcmcia: CodingSty... |
810 811 |
return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS, altstr->str, altstr->ofs, &altstr->ns); |
1da177e4c Linux-2.6.12-rc2 |
812 |
} |
1da177e4c Linux-2.6.12-rc2 |
813 814 815 |
static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec) { |
6e83ee075 pcmcia: CodingSty... |
816 817 |
u_char *p, *q; int nid; |
1da177e4c Linux-2.6.12-rc2 |
818 |
|
6e83ee075 pcmcia: CodingSty... |
819 820 |
p = (u_char *)tuple->TupleData; q = p + tuple->TupleDataLen; |
1da177e4c Linux-2.6.12-rc2 |
821 |
|
6e83ee075 pcmcia: CodingSty... |
822 823 824 825 826 827 828 829 830 |
for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) { if (p > q-2) break; jedec->id[nid].mfr = p[0]; jedec->id[nid].info = p[1]; p += 2; } jedec->nid = nid; return 0; |
1da177e4c Linux-2.6.12-rc2 |
831 |
} |
1da177e4c Linux-2.6.12-rc2 |
832 833 834 |
static int parse_manfid(tuple_t *tuple, cistpl_manfid_t *m) { |
6e83ee075 pcmcia: CodingSty... |
835 836 837 838 839 |
if (tuple->TupleDataLen < 4) return -EINVAL; m->manf = get_unaligned_le16(tuple->TupleData); m->card = get_unaligned_le16(tuple->TupleData + 2); return 0; |
1da177e4c Linux-2.6.12-rc2 |
840 |
} |
1da177e4c Linux-2.6.12-rc2 |
841 842 843 |
static int parse_funcid(tuple_t *tuple, cistpl_funcid_t *f) { |
6e83ee075 pcmcia: CodingSty... |
844 845 846 847 848 849 850 |
u_char *p; if (tuple->TupleDataLen < 2) return -EINVAL; p = (u_char *)tuple->TupleData; f->func = p[0]; f->sysinit = p[1]; return 0; |
1da177e4c Linux-2.6.12-rc2 |
851 |
} |
1da177e4c Linux-2.6.12-rc2 |
852 853 854 |
static int parse_funce(tuple_t *tuple, cistpl_funce_t *f) { |
6e83ee075 pcmcia: CodingSty... |
855 856 857 858 859 860 861 862 863 |
u_char *p; int i; if (tuple->TupleDataLen < 1) return -EINVAL; p = (u_char *)tuple->TupleData; f->type = p[0]; for (i = 1; i < tuple->TupleDataLen; i++) f->data[i-1] = p[i]; return 0; |
1da177e4c Linux-2.6.12-rc2 |
864 |
} |
1da177e4c Linux-2.6.12-rc2 |
865 866 867 |
static int parse_config(tuple_t *tuple, cistpl_config_t *config) { |
6e83ee075 pcmcia: CodingSty... |
868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 |
int rasz, rmsz, i; u_char *p; p = (u_char *)tuple->TupleData; rasz = *p & 0x03; rmsz = (*p & 0x3c) >> 2; if (tuple->TupleDataLen < rasz+rmsz+4) return -EINVAL; config->last_idx = *(++p); p++; config->base = 0; for (i = 0; i <= rasz; i++) config->base += p[i] << (8*i); p += rasz+1; for (i = 0; i < 4; i++) config->rmask[i] = 0; for (i = 0; i <= rmsz; i++) config->rmask[i>>2] += p[i] << (8*(i%4)); config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4); return 0; |
1da177e4c Linux-2.6.12-rc2 |
888 |
} |
6e83ee075 pcmcia: CodingSty... |
889 890 891 |
/* The following routines are all used to parse the nightmarish * config table entries. */ |
1da177e4c Linux-2.6.12-rc2 |
892 |
|
6e83ee075 pcmcia: CodingSty... |
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 |
static u_char *parse_power(u_char *p, u_char *q, cistpl_power_t *pwr) { int i; u_int scale; if (p == q) return NULL; pwr->present = *p; pwr->flags = 0; p++; for (i = 0; i < 7; i++) if (pwr->present & (1<<i)) { if (p == q) return NULL; pwr->param[i] = POWER_CVT(*p); scale = POWER_SCALE(*p); while (*p & 0x80) { if (++p == q) return NULL; if ((*p & 0x7f) < 100) pwr->param[i] += (*p & 0x7f) * scale / 100; else if (*p == 0x7d) pwr->flags |= CISTPL_POWER_HIGHZ_OK; else if (*p == 0x7e) pwr->param[i] = 0; else if (*p == 0x7f) pwr->flags |= CISTPL_POWER_HIGHZ_REQ; else return NULL; } p++; } return p; } |
9fea84f46 pcmcia: CodingSty... |
928 |
|
1da177e4c Linux-2.6.12-rc2 |
929 |
|
6e83ee075 pcmcia: CodingSty... |
930 |
static u_char *parse_timing(u_char *p, u_char *q, cistpl_timing_t *timing) |
1da177e4c Linux-2.6.12-rc2 |
931 |
{ |
6e83ee075 pcmcia: CodingSty... |
932 933 934 935 936 937 |
u_char scale; if (p == q) return NULL; scale = *p; if ((scale & 3) != 3) { |
9fea84f46 pcmcia: CodingSty... |
938 939 |
if (++p == q) return NULL; |
6e83ee075 pcmcia: CodingSty... |
940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 |
timing->wait = SPEED_CVT(*p); timing->waitscale = exponent[scale & 3]; } else timing->wait = 0; scale >>= 2; if ((scale & 7) != 7) { if (++p == q) return NULL; timing->ready = SPEED_CVT(*p); timing->rdyscale = exponent[scale & 7]; } else timing->ready = 0; scale >>= 3; if (scale != 7) { if (++p == q) return NULL; timing->reserved = SPEED_CVT(*p); timing->rsvscale = exponent[scale]; } else timing->reserved = 0; p++; return p; |
1da177e4c Linux-2.6.12-rc2 |
962 |
} |
1da177e4c Linux-2.6.12-rc2 |
963 |
|
6e83ee075 pcmcia: CodingSty... |
964 |
static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io) |
1da177e4c Linux-2.6.12-rc2 |
965 |
{ |
6e83ee075 pcmcia: CodingSty... |
966 |
int i, j, bsz, lsz; |
1da177e4c Linux-2.6.12-rc2 |
967 |
|
6e83ee075 pcmcia: CodingSty... |
968 |
if (p == q) |
9fea84f46 pcmcia: CodingSty... |
969 |
return NULL; |
6e83ee075 pcmcia: CodingSty... |
970 971 972 973 974 975 976 977 |
io->flags = *p; if (!(*p & 0x80)) { io->nwin = 1; io->win[0].base = 0; io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK)); return p+1; } |
9fea84f46 pcmcia: CodingSty... |
978 979 |
if (++p == q) return NULL; |
6e83ee075 pcmcia: CodingSty... |
980 981 982 983 984 985 986 987 |
io->nwin = (*p & 0x0f) + 1; bsz = (*p & 0x30) >> 4; if (bsz == 3) bsz++; lsz = (*p & 0xc0) >> 6; if (lsz == 3) lsz++; p++; |
1da177e4c Linux-2.6.12-rc2 |
988 |
|
6e83ee075 pcmcia: CodingSty... |
989 990 991 992 993 994 995 996 997 998 999 1000 1001 |
for (i = 0; i < io->nwin; i++) { io->win[i].base = 0; io->win[i].len = 1; for (j = 0; j < bsz; j++, p++) { if (p == q) return NULL; io->win[i].base += *p << (j*8); } for (j = 0; j < lsz; j++, p++) { if (p == q) return NULL; io->win[i].len += *p << (j*8); } |
1da177e4c Linux-2.6.12-rc2 |
1002 |
} |
6e83ee075 pcmcia: CodingSty... |
1003 |
return p; |
1da177e4c Linux-2.6.12-rc2 |
1004 |
} |
1da177e4c Linux-2.6.12-rc2 |
1005 1006 1007 |
static u_char *parse_mem(u_char *p, u_char *q, cistpl_mem_t *mem) { |
6e83ee075 pcmcia: CodingSty... |
1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 |
int i, j, asz, lsz, has_ha; u_int len, ca, ha; if (p == q) return NULL; mem->nwin = (*p & 0x07) + 1; lsz = (*p & 0x18) >> 3; asz = (*p & 0x60) >> 5; has_ha = (*p & 0x80); if (++p == q) return NULL; for (i = 0; i < mem->nwin; i++) { len = ca = ha = 0; for (j = 0; j < lsz; j++, p++) { if (p == q) return NULL; len += *p << (j*8); } for (j = 0; j < asz; j++, p++) { if (p == q) return NULL; ca += *p << (j*8); } if (has_ha) for (j = 0; j < asz; j++, p++) { if (p == q) return NULL; ha += *p << (j*8); } mem->win[i].len = len << 8; mem->win[i].card_addr = ca << 8; mem->win[i].host_addr = ha << 8; |
1da177e4c Linux-2.6.12-rc2 |
1042 |
} |
6e83ee075 pcmcia: CodingSty... |
1043 |
return p; |
1da177e4c Linux-2.6.12-rc2 |
1044 |
} |
1da177e4c Linux-2.6.12-rc2 |
1045 1046 1047 |
static u_char *parse_irq(u_char *p, u_char *q, cistpl_irq_t *irq) { |
6e83ee075 pcmcia: CodingSty... |
1048 |
if (p == q) |
3f9c5f4cb pcmcia: deprecate... |
1049 |
return NULL; |
6e83ee075 pcmcia: CodingSty... |
1050 1051 1052 1053 1054 1055 1056 1057 |
irq->IRQInfo1 = *p; p++; if (irq->IRQInfo1 & IRQ_INFO2_VALID) { if (p+2 > q) return NULL; irq->IRQInfo2 = (p[1]<<8) + p[0]; p += 2; } return p; |
1da177e4c Linux-2.6.12-rc2 |
1058 |
} |
1da177e4c Linux-2.6.12-rc2 |
1059 1060 1061 1062 |
static int parse_cftable_entry(tuple_t *tuple, cistpl_cftable_entry_t *entry) { |
6e83ee075 pcmcia: CodingSty... |
1063 1064 1065 1066 1067 1068 |
u_char *p, *q, features; p = tuple->TupleData; q = p + tuple->TupleDataLen; entry->index = *p & 0x3f; entry->flags = 0; |
1da177e4c Linux-2.6.12-rc2 |
1069 |
if (*p & 0x40) |
6e83ee075 pcmcia: CodingSty... |
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 |
entry->flags |= CISTPL_CFTABLE_DEFAULT; if (*p & 0x80) { if (++p == q) return -EINVAL; if (*p & 0x10) entry->flags |= CISTPL_CFTABLE_BVDS; if (*p & 0x20) entry->flags |= CISTPL_CFTABLE_WP; if (*p & 0x40) entry->flags |= CISTPL_CFTABLE_RDYBSY; if (*p & 0x80) entry->flags |= CISTPL_CFTABLE_MWAIT; entry->interface = *p & 0x0f; } else entry->interface = 0; |
1da177e4c Linux-2.6.12-rc2 |
1085 |
|
6e83ee075 pcmcia: CodingSty... |
1086 1087 |
/* Process optional features */ if (++p == q) |
3f9c5f4cb pcmcia: deprecate... |
1088 |
return -EINVAL; |
6e83ee075 pcmcia: CodingSty... |
1089 |
features = *p; p++; |
9fea84f46 pcmcia: CodingSty... |
1090 |
|
6e83ee075 pcmcia: CodingSty... |
1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 |
/* Power options */ if ((features & 3) > 0) { p = parse_power(p, q, &entry->vcc); if (p == NULL) return -EINVAL; } else entry->vcc.present = 0; if ((features & 3) > 1) { p = parse_power(p, q, &entry->vpp1); if (p == NULL) return -EINVAL; } else entry->vpp1.present = 0; if ((features & 3) > 2) { p = parse_power(p, q, &entry->vpp2); if (p == NULL) return -EINVAL; } else entry->vpp2.present = 0; |
1da177e4c Linux-2.6.12-rc2 |
1110 |
|
6e83ee075 pcmcia: CodingSty... |
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 |
/* Timing options */ if (features & 0x04) { p = parse_timing(p, q, &entry->timing); if (p == NULL) return -EINVAL; } else { entry->timing.wait = 0; entry->timing.ready = 0; entry->timing.reserved = 0; } |
1da177e4c Linux-2.6.12-rc2 |
1121 |
|
6e83ee075 pcmcia: CodingSty... |
1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 |
/* I/O window options */ if (features & 0x08) { p = parse_io(p, q, &entry->io); if (p == NULL) return -EINVAL; } else entry->io.nwin = 0; /* Interrupt options */ if (features & 0x10) { p = parse_irq(p, q, &entry->irq); if (p == NULL) return -EINVAL; } else entry->irq.IRQInfo1 = 0; |
9fea84f46 pcmcia: CodingSty... |
1137 |
|
6e83ee075 pcmcia: CodingSty... |
1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 |
switch (features & 0x60) { case 0x00: entry->mem.nwin = 0; break; case 0x20: entry->mem.nwin = 1; entry->mem.win[0].len = get_unaligned_le16(p) << 8; entry->mem.win[0].card_addr = 0; entry->mem.win[0].host_addr = 0; p += 2; if (p > q) return -EINVAL; break; case 0x40: entry->mem.nwin = 1; entry->mem.win[0].len = get_unaligned_le16(p) << 8; entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8; entry->mem.win[0].host_addr = 0; p += 4; if (p > q) return -EINVAL; break; case 0x60: p = parse_mem(p, q, &entry->mem); if (p == NULL) return -EINVAL; break; } /* Misc features */ if (features & 0x80) { if (p == q) return -EINVAL; entry->flags |= (*p << 8); while (*p & 0x80) if (++p == q) return -EINVAL; p++; } entry->subtuples = q-p; return 0; |
1da177e4c Linux-2.6.12-rc2 |
1181 |
} |
1da177e4c Linux-2.6.12-rc2 |
1182 |
|
1da177e4c Linux-2.6.12-rc2 |
1183 1184 |
static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo) { |
6e83ee075 pcmcia: CodingSty... |
1185 1186 |
u_char *p, *q; int n; |
1da177e4c Linux-2.6.12-rc2 |
1187 |
|
6e83ee075 pcmcia: CodingSty... |
1188 1189 |
p = (u_char *)tuple->TupleData; q = p + tuple->TupleDataLen; |
1da177e4c Linux-2.6.12-rc2 |
1190 |
|
6e83ee075 pcmcia: CodingSty... |
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 |
for (n = 0; n < CISTPL_MAX_DEVICES; n++) { if (p > q-6) break; geo->geo[n].buswidth = p[0]; geo->geo[n].erase_block = 1 << (p[1]-1); geo->geo[n].read_block = 1 << (p[2]-1); geo->geo[n].write_block = 1 << (p[3]-1); geo->geo[n].partition = 1 << (p[4]-1); geo->geo[n].interleave = 1 << (p[5]-1); p += 6; } geo->ngeo = n; return 0; |
1da177e4c Linux-2.6.12-rc2 |
1204 |
} |
1da177e4c Linux-2.6.12-rc2 |
1205 1206 1207 |
static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2) { |
6e83ee075 pcmcia: CodingSty... |
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 |
u_char *p, *q; if (tuple->TupleDataLen < 10) return -EINVAL; p = tuple->TupleData; q = p + tuple->TupleDataLen; v2->vers = p[0]; v2->comply = p[1]; v2->dindex = get_unaligned_le16(p + 2); v2->vspec8 = p[6]; v2->vspec9 = p[7]; v2->nhdr = p[8]; p += 9; return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL); |
1da177e4c Linux-2.6.12-rc2 |
1224 |
} |
1da177e4c Linux-2.6.12-rc2 |
1225 1226 1227 |
static int parse_org(tuple_t *tuple, cistpl_org_t *org) { |
6e83ee075 pcmcia: CodingSty... |
1228 1229 1230 1231 1232 1233 1234 1235 |
u_char *p, *q; int i; p = tuple->TupleData; q = p + tuple->TupleDataLen; if (p == q) return -EINVAL; org->data_org = *p; |
3f9c5f4cb pcmcia: deprecate... |
1236 1237 |
if (++p == q) return -EINVAL; |
6e83ee075 pcmcia: CodingSty... |
1238 1239 1240 1241 1242 1243 1244 1245 |
for (i = 0; i < 30; i++) { org->desc[i] = *p; if (*p == '\0') break; if (++p == q) return -EINVAL; } return 0; |
1da177e4c Linux-2.6.12-rc2 |
1246 |
} |
1da177e4c Linux-2.6.12-rc2 |
1247 1248 1249 |
static int parse_format(tuple_t *tuple, cistpl_format_t *fmt) { |
6e83ee075 pcmcia: CodingSty... |
1250 |
u_char *p; |
1da177e4c Linux-2.6.12-rc2 |
1251 |
|
6e83ee075 pcmcia: CodingSty... |
1252 1253 |
if (tuple->TupleDataLen < 10) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1254 |
|
6e83ee075 pcmcia: CodingSty... |
1255 |
p = tuple->TupleData; |
1da177e4c Linux-2.6.12-rc2 |
1256 |
|
6e83ee075 pcmcia: CodingSty... |
1257 1258 1259 1260 |
fmt->type = p[0]; fmt->edc = p[1]; fmt->offset = get_unaligned_le32(p + 2); fmt->length = get_unaligned_le32(p + 6); |
1da177e4c Linux-2.6.12-rc2 |
1261 |
|
6e83ee075 pcmcia: CodingSty... |
1262 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1263 |
} |
1da177e4c Linux-2.6.12-rc2 |
1264 |
|
2f3061eb1 pcmcia: remove un... |
1265 |
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse) |
1da177e4c Linux-2.6.12-rc2 |
1266 |
{ |
6e83ee075 pcmcia: CodingSty... |
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 |
int ret = 0; if (tuple->TupleDataLen > tuple->TupleDataMax) return -EINVAL; switch (tuple->TupleCode) { case CISTPL_DEVICE: case CISTPL_DEVICE_A: ret = parse_device(tuple, &parse->device); break; case CISTPL_CHECKSUM: ret = parse_checksum(tuple, &parse->checksum); break; case CISTPL_LONGLINK_A: case CISTPL_LONGLINK_C: ret = parse_longlink(tuple, &parse->longlink); break; case CISTPL_LONGLINK_MFC: ret = parse_longlink_mfc(tuple, &parse->longlink_mfc); break; case CISTPL_VERS_1: ret = parse_vers_1(tuple, &parse->version_1); break; case CISTPL_ALTSTR: ret = parse_altstr(tuple, &parse->altstr); break; case CISTPL_JEDEC_A: case CISTPL_JEDEC_C: ret = parse_jedec(tuple, &parse->jedec); break; case CISTPL_MANFID: ret = parse_manfid(tuple, &parse->manfid); break; case CISTPL_FUNCID: ret = parse_funcid(tuple, &parse->funcid); break; case CISTPL_FUNCE: ret = parse_funce(tuple, &parse->funce); break; case CISTPL_CONFIG: ret = parse_config(tuple, &parse->config); break; case CISTPL_CFTABLE_ENTRY: ret = parse_cftable_entry(tuple, &parse->cftable_entry); break; case CISTPL_DEVICE_GEO: case CISTPL_DEVICE_GEO_A: ret = parse_device_geo(tuple, &parse->device_geo); break; case CISTPL_VERS_2: ret = parse_vers_2(tuple, &parse->vers_2); break; case CISTPL_ORG: ret = parse_org(tuple, &parse->org); break; case CISTPL_FORMAT: case CISTPL_FORMAT_A: ret = parse_format(tuple, &parse->format); break; case CISTPL_NO_LINK: case CISTPL_LINKTARGET: ret = 0; break; default: ret = -EINVAL; break; } if (ret) pr_debug("parse_tuple failed %d ", ret); return ret; |
1da177e4c Linux-2.6.12-rc2 |
1337 |
} |
2f3061eb1 pcmcia: remove un... |
1338 |
EXPORT_SYMBOL(pcmcia_parse_tuple); |
1da177e4c Linux-2.6.12-rc2 |
1339 |
|
9fea84f46 pcmcia: CodingSty... |
1340 |
|
6e83ee075 pcmcia: CodingSty... |
1341 |
/** |
f131ddc4b pcmcia: cleanup p... |
1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 |
* pccard_validate_cis() - check whether card has a sensible CIS * @s: the struct pcmcia_socket we are to check * @info: returns the number of tuples in the (valid) CIS, or 0 * * This tries to determine if a card has a sensible CIS. In @info, it * returns the number of tuples in the CIS, or 0 if the CIS looks bad. The * checks include making sure several critical tuples are present and * valid; seeing if the total number of tuples is reasonable; and * looking for tuples that use reserved codes. * * The function returns 0 on success. */ |
84897fc05 pcmcia: pccard_re... |
1354 |
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) |
1da177e4c Linux-2.6.12-rc2 |
1355 |
{ |
f131ddc4b pcmcia: cleanup p... |
1356 1357 1358 1359 |
tuple_t *tuple; cisparse_t *p; unsigned int count = 0; int ret, reserved, dev_ok = 0, ident_ok = 0; |
1da177e4c Linux-2.6.12-rc2 |
1360 |
|
f131ddc4b pcmcia: cleanup p... |
1361 1362 |
if (!s) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1363 |
|
8402641b2 pcmcia: Fix requery |
1364 |
if (s->functions || !(s->state & SOCKET_PRESENT)) { |
a8408c17d pcmcia: avoid lat... |
1365 1366 1367 |
WARN_ON(1); return -EINVAL; } |
f131ddc4b pcmcia: cleanup p... |
1368 |
/* We do not want to validate the CIS cache... */ |
8680c4b3f pcmcia: also lock... |
1369 |
mutex_lock(&s->ops_mutex); |
f131ddc4b pcmcia: cleanup p... |
1370 |
destroy_cis_cache(s); |
8680c4b3f pcmcia: also lock... |
1371 |
mutex_unlock(&s->ops_mutex); |
904e37774 pcmcia: validate ... |
1372 |
|
f131ddc4b pcmcia: cleanup p... |
1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 |
tuple = kmalloc(sizeof(*tuple), GFP_KERNEL); if (tuple == NULL) { dev_warn(&s->dev, "no memory to validate CIS "); return -ENOMEM; } p = kmalloc(sizeof(*p), GFP_KERNEL); if (p == NULL) { kfree(tuple); dev_warn(&s->dev, "no memory to validate CIS "); return -ENOMEM; } |
1da177e4c Linux-2.6.12-rc2 |
1386 |
|
f131ddc4b pcmcia: cleanup p... |
1387 1388 1389 1390 |
count = reserved = 0; tuple->DesiredTuple = RETURN_FIRST_TUPLE; tuple->Attributes = TUPLE_RETURN_COMMON; ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple); |
4c89e88bf pcmcia: deprecate... |
1391 |
if (ret != 0) |
f131ddc4b pcmcia: cleanup p... |
1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 |
goto done; /* First tuple should be DEVICE; we should really have either that or a CFTABLE_ENTRY of some sort */ if ((tuple->TupleCode == CISTPL_DEVICE) || (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p)) || (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p))) dev_ok++; /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2 tuple, for card identification. Certain old D-Link and Linksys cards have only a broken VERS_2 tuple; hence the bogus test. */ if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) || (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) || (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC)) ident_ok++; if (!dev_ok && !ident_ok) goto done; for (count = 1; count < MAX_TUPLES; count++) { ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple); if (ret != 0) break; if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) || ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) || ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff))) reserved++; } if ((count == MAX_TUPLES) || (reserved > 5) || ((!dev_ok || !ident_ok) && (count > 10))) count = 0; ret = 0; |
1da177e4c Linux-2.6.12-rc2 |
1426 1427 |
done: |
f131ddc4b pcmcia: cleanup p... |
1428 1429 |
/* invalidate CIS cache on failure */ if (!dev_ok || !ident_ok || !count) { |
e8e68fd86 pcmcia: do not br... |
1430 1431 1432 1433 1434 1435 1436 |
mutex_lock(&s->ops_mutex); destroy_cis_cache(s); mutex_unlock(&s->ops_mutex); /* We differentiate between dev_ok, ident_ok and count failures to allow for an override for anonymous cards in ds.c */ if (!dev_ok || !ident_ok) |
1c6c9b1d9 pcmcia: handle an... |
1437 |
ret = -EIO; |
e8e68fd86 pcmcia: do not br... |
1438 1439 |
else ret = -EFAULT; |
f131ddc4b pcmcia: cleanup p... |
1440 1441 1442 1443 1444 1445 1446 |
} if (info) *info = count; kfree(tuple); kfree(p); return ret; |
1da177e4c Linux-2.6.12-rc2 |
1447 |
} |
6e7b51a73 pcmcia: move cist... |
1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 |
#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count) { tuple_t tuple; int status, i; loff_t pointer = 0; ssize_t ret = 0; u_char *tuplebuffer; u_char *tempbuffer; tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); if (!tuplebuffer) return -ENOMEM; tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); if (!tempbuffer) { ret = -ENOMEM; goto free_tuple; } memset(&tuple, 0, sizeof(tuple_t)); tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; tuple.DesiredTuple = RETURN_FIRST_TUPLE; tuple.TupleOffset = 0; status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); while (!status) { tuple.TupleData = tuplebuffer; tuple.TupleDataMax = 255; memset(tuplebuffer, 0, sizeof(u_char) * 255); status = pccard_get_tuple_data(s, &tuple); if (status) break; if (off < (pointer + 2 + tuple.TupleDataLen)) { tempbuffer[0] = tuple.TupleCode & 0xff; tempbuffer[1] = tuple.TupleLink & 0xff; for (i = 0; i < tuple.TupleDataLen; i++) tempbuffer[i + 2] = tuplebuffer[i] & 0xff; for (i = 0; i < (2 + tuple.TupleDataLen); i++) { if (((i + pointer) >= off) && (i + pointer) < (off + count)) { buf[ret] = tempbuffer[i]; ret++; } } } pointer += 2 + tuple.TupleDataLen; if (pointer >= (off + count)) break; if (tuple.TupleCode == CISTPL_END) break; status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); } kfree(tempbuffer); free_tuple: kfree(tuplebuffer); return ret; } |
2c3c8bea6 sysfs: add struct... |
1519 |
static ssize_t pccard_show_cis(struct file *filp, struct kobject *kobj, |
6e7b51a73 pcmcia: move cist... |
1520 1521 1522 1523 1524 1525 1526 1527 1528 |
struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { unsigned int size = 0x200; if (off >= size) count = 0; else { struct pcmcia_socket *s; |
a8408c17d pcmcia: avoid lat... |
1529 |
unsigned int chains = 1; |
6e7b51a73 pcmcia: move cist... |
1530 1531 1532 1533 1534 1535 1536 1537 |
if (off + count > size) count = size - off; s = to_socket(container_of(kobj, struct device, kobj)); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; |
a8408c17d pcmcia: avoid lat... |
1538 |
if (!s->functions && pccard_validate_cis(s, &chains)) |
6e7b51a73 pcmcia: move cist... |
1539 1540 1541 1542 1543 1544 1545 1546 1547 |
return -EIO; if (!chains) return -ENODATA; count = pccard_extract_cis(s, buf, off, count); } return count; } |
2c3c8bea6 sysfs: add struct... |
1548 |
static ssize_t pccard_store_cis(struct file *filp, struct kobject *kobj, |
6e7b51a73 pcmcia: move cist... |
1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 |
struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { struct pcmcia_socket *s; int error; s = to_socket(container_of(kobj, struct device, kobj)); if (off) return -EINVAL; if (count >= CISTPL_MAX_CIS_SIZE) return -EINVAL; if (!(s->state & SOCKET_PRESENT)) return -ENODEV; error = pcmcia_replace_cis(s, buf, count); if (error) return -EIO; |
af461fc18 pcmcia: delay re-... |
1569 |
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
6e7b51a73 pcmcia: move cist... |
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return count; } struct bin_attribute pccard_cis_attr = { .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, .size = 0x200, .read = pccard_show_cis, .write = pccard_store_cis, }; |