forked from luck/tmp_suning_uos_patched
b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
811 lines
17 KiB
C
811 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* rsparser.c - parses and encodes pnpbios resource data streams
|
|
*/
|
|
|
|
#include <linux/ctype.h>
|
|
#include <linux/pnp.h>
|
|
#include <linux/string.h>
|
|
|
|
#ifdef CONFIG_PCI
|
|
#include <linux/pci.h>
|
|
#else
|
|
inline void pcibios_penalize_isa_irq(int irq, int active)
|
|
{
|
|
}
|
|
#endif /* CONFIG_PCI */
|
|
|
|
#include "../base.h"
|
|
#include "pnpbios.h"
|
|
|
|
/* standard resource tags */
|
|
#define SMALL_TAG_PNPVERNO 0x01
|
|
#define SMALL_TAG_LOGDEVID 0x02
|
|
#define SMALL_TAG_COMPATDEVID 0x03
|
|
#define SMALL_TAG_IRQ 0x04
|
|
#define SMALL_TAG_DMA 0x05
|
|
#define SMALL_TAG_STARTDEP 0x06
|
|
#define SMALL_TAG_ENDDEP 0x07
|
|
#define SMALL_TAG_PORT 0x08
|
|
#define SMALL_TAG_FIXEDPORT 0x09
|
|
#define SMALL_TAG_VENDOR 0x0e
|
|
#define SMALL_TAG_END 0x0f
|
|
#define LARGE_TAG 0x80
|
|
#define LARGE_TAG_MEM 0x81
|
|
#define LARGE_TAG_ANSISTR 0x82
|
|
#define LARGE_TAG_UNICODESTR 0x83
|
|
#define LARGE_TAG_VENDOR 0x84
|
|
#define LARGE_TAG_MEM32 0x85
|
|
#define LARGE_TAG_FIXEDMEM32 0x86
|
|
|
|
/*
|
|
* Resource Data Stream Format:
|
|
*
|
|
* Allocated Resources (required)
|
|
* end tag ->
|
|
* Resource Configuration Options (optional)
|
|
* end tag ->
|
|
* Compitable Device IDs (optional)
|
|
* final end tag ->
|
|
*/
|
|
|
|
/*
|
|
* Allocated Resources
|
|
*/
|
|
|
|
static void pnpbios_parse_allocated_ioresource(struct pnp_dev *dev,
|
|
int start, int len)
|
|
{
|
|
int flags = 0;
|
|
int end = start + len - 1;
|
|
|
|
if (len <= 0 || end >= 0x10003)
|
|
flags |= IORESOURCE_DISABLED;
|
|
|
|
pnp_add_io_resource(dev, start, end, flags);
|
|
}
|
|
|
|
static void pnpbios_parse_allocated_memresource(struct pnp_dev *dev,
|
|
int start, int len)
|
|
{
|
|
int flags = 0;
|
|
int end = start + len - 1;
|
|
|
|
if (len <= 0)
|
|
flags |= IORESOURCE_DISABLED;
|
|
|
|
pnp_add_mem_resource(dev, start, end, flags);
|
|
}
|
|
|
|
static unsigned char *pnpbios_parse_allocated_resource_data(struct pnp_dev *dev,
|
|
unsigned char *p,
|
|
unsigned char *end)
|
|
{
|
|
unsigned int len, tag;
|
|
int io, size, mask, i, flags;
|
|
|
|
if (!p)
|
|
return NULL;
|
|
|
|
pnp_dbg(&dev->dev, "parse allocated resources\n");
|
|
|
|
pnp_init_resources(dev);
|
|
|
|
while ((char *)p < (char *)end) {
|
|
|
|
/* determine the type of tag */
|
|
if (p[0] & LARGE_TAG) { /* large tag */
|
|
len = (p[2] << 8) | p[1];
|
|
tag = p[0];
|
|
} else { /* small tag */
|
|
len = p[0] & 0x07;
|
|
tag = ((p[0] >> 3) & 0x0f);
|
|
}
|
|
|
|
switch (tag) {
|
|
|
|
case LARGE_TAG_MEM:
|
|
if (len != 9)
|
|
goto len_err;
|
|
io = *(short *)&p[4];
|
|
size = *(short *)&p[10];
|
|
pnpbios_parse_allocated_memresource(dev, io, size);
|
|
break;
|
|
|
|
case LARGE_TAG_ANSISTR:
|
|
/* ignore this for now */
|
|
break;
|
|
|
|
case LARGE_TAG_VENDOR:
|
|
/* do nothing */
|
|
break;
|
|
|
|
case LARGE_TAG_MEM32:
|
|
if (len != 17)
|
|
goto len_err;
|
|
io = *(int *)&p[4];
|
|
size = *(int *)&p[16];
|
|
pnpbios_parse_allocated_memresource(dev, io, size);
|
|
break;
|
|
|
|
case LARGE_TAG_FIXEDMEM32:
|
|
if (len != 9)
|
|
goto len_err;
|
|
io = *(int *)&p[4];
|
|
size = *(int *)&p[8];
|
|
pnpbios_parse_allocated_memresource(dev, io, size);
|
|
break;
|
|
|
|
case SMALL_TAG_IRQ:
|
|
if (len < 2 || len > 3)
|
|
goto len_err;
|
|
flags = 0;
|
|
io = -1;
|
|
mask = p[1] + p[2] * 256;
|
|
for (i = 0; i < 16; i++, mask = mask >> 1)
|
|
if (mask & 0x01)
|
|
io = i;
|
|
if (io != -1)
|
|
pcibios_penalize_isa_irq(io, 1);
|
|
else
|
|
flags = IORESOURCE_DISABLED;
|
|
pnp_add_irq_resource(dev, io, flags);
|
|
break;
|
|
|
|
case SMALL_TAG_DMA:
|
|
if (len != 2)
|
|
goto len_err;
|
|
flags = 0;
|
|
io = -1;
|
|
mask = p[1];
|
|
for (i = 0; i < 8; i++, mask = mask >> 1)
|
|
if (mask & 0x01)
|
|
io = i;
|
|
if (io == -1)
|
|
flags = IORESOURCE_DISABLED;
|
|
pnp_add_dma_resource(dev, io, flags);
|
|
break;
|
|
|
|
case SMALL_TAG_PORT:
|
|
if (len != 7)
|
|
goto len_err;
|
|
io = p[2] + p[3] * 256;
|
|
size = p[7];
|
|
pnpbios_parse_allocated_ioresource(dev, io, size);
|
|
break;
|
|
|
|
case SMALL_TAG_VENDOR:
|
|
/* do nothing */
|
|
break;
|
|
|
|
case SMALL_TAG_FIXEDPORT:
|
|
if (len != 3)
|
|
goto len_err;
|
|
io = p[1] + p[2] * 256;
|
|
size = p[3];
|
|
pnpbios_parse_allocated_ioresource(dev, io, size);
|
|
break;
|
|
|
|
case SMALL_TAG_END:
|
|
p = p + 2;
|
|
return (unsigned char *)p;
|
|
break;
|
|
|
|
default: /* an unknown tag */
|
|
len_err:
|
|
dev_err(&dev->dev, "unknown tag %#x length %d\n",
|
|
tag, len);
|
|
break;
|
|
}
|
|
|
|
/* continue to the next tag */
|
|
if (p[0] & LARGE_TAG)
|
|
p += len + 3;
|
|
else
|
|
p += len + 1;
|
|
}
|
|
|
|
dev_err(&dev->dev, "no end tag in resource structure\n");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Resource Configuration Options
|
|
*/
|
|
|
|
static __init void pnpbios_parse_mem_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
resource_size_t min, max, align, len;
|
|
unsigned char flags;
|
|
|
|
min = ((p[5] << 8) | p[4]) << 8;
|
|
max = ((p[7] << 8) | p[6]) << 8;
|
|
align = (p[9] << 8) | p[8];
|
|
len = ((p[11] << 8) | p[10]) << 8;
|
|
flags = p[3];
|
|
pnp_register_mem_resource(dev, option_flags, min, max, align, len,
|
|
flags);
|
|
}
|
|
|
|
static __init void pnpbios_parse_mem32_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
resource_size_t min, max, align, len;
|
|
unsigned char flags;
|
|
|
|
min = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
|
|
max = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
|
|
align = (p[15] << 24) | (p[14] << 16) | (p[13] << 8) | p[12];
|
|
len = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
|
|
flags = p[3];
|
|
pnp_register_mem_resource(dev, option_flags, min, max, align, len,
|
|
flags);
|
|
}
|
|
|
|
static __init void pnpbios_parse_fixed_mem32_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
resource_size_t base, len;
|
|
unsigned char flags;
|
|
|
|
base = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
|
|
len = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
|
|
flags = p[3];
|
|
pnp_register_mem_resource(dev, option_flags, base, base, 0, len, flags);
|
|
}
|
|
|
|
static __init void pnpbios_parse_irq_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
unsigned long bits;
|
|
pnp_irq_mask_t map;
|
|
unsigned char flags = IORESOURCE_IRQ_HIGHEDGE;
|
|
|
|
bits = (p[2] << 8) | p[1];
|
|
|
|
bitmap_zero(map.bits, PNP_IRQ_NR);
|
|
bitmap_copy(map.bits, &bits, 16);
|
|
|
|
if (size > 2)
|
|
flags = p[3];
|
|
|
|
pnp_register_irq_resource(dev, option_flags, &map, flags);
|
|
}
|
|
|
|
static __init void pnpbios_parse_dma_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
pnp_register_dma_resource(dev, option_flags, p[1], p[2]);
|
|
}
|
|
|
|
static __init void pnpbios_parse_port_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
resource_size_t min, max, align, len;
|
|
unsigned char flags;
|
|
|
|
min = (p[3] << 8) | p[2];
|
|
max = (p[5] << 8) | p[4];
|
|
align = p[6];
|
|
len = p[7];
|
|
flags = p[1] ? IORESOURCE_IO_16BIT_ADDR : 0;
|
|
pnp_register_port_resource(dev, option_flags, min, max, align, len,
|
|
flags);
|
|
}
|
|
|
|
static __init void pnpbios_parse_fixed_port_option(struct pnp_dev *dev,
|
|
unsigned char *p, int size,
|
|
unsigned int option_flags)
|
|
{
|
|
resource_size_t base, len;
|
|
|
|
base = (p[2] << 8) | p[1];
|
|
len = p[3];
|
|
pnp_register_port_resource(dev, option_flags, base, base, 0, len,
|
|
IORESOURCE_IO_FIXED);
|
|
}
|
|
|
|
static __init unsigned char *
|
|
pnpbios_parse_resource_option_data(unsigned char *p, unsigned char *end,
|
|
struct pnp_dev *dev)
|
|
{
|
|
unsigned int len, tag;
|
|
int priority;
|
|
unsigned int option_flags;
|
|
|
|
if (!p)
|
|
return NULL;
|
|
|
|
pnp_dbg(&dev->dev, "parse resource options\n");
|
|
option_flags = 0;
|
|
while ((char *)p < (char *)end) {
|
|
|
|
/* determine the type of tag */
|
|
if (p[0] & LARGE_TAG) { /* large tag */
|
|
len = (p[2] << 8) | p[1];
|
|
tag = p[0];
|
|
} else { /* small tag */
|
|
len = p[0] & 0x07;
|
|
tag = ((p[0] >> 3) & 0x0f);
|
|
}
|
|
|
|
switch (tag) {
|
|
|
|
case LARGE_TAG_MEM:
|
|
if (len != 9)
|
|
goto len_err;
|
|
pnpbios_parse_mem_option(dev, p, len, option_flags);
|
|
break;
|
|
|
|
case LARGE_TAG_MEM32:
|
|
if (len != 17)
|
|
goto len_err;
|
|
pnpbios_parse_mem32_option(dev, p, len, option_flags);
|
|
break;
|
|
|
|
case LARGE_TAG_FIXEDMEM32:
|
|
if (len != 9)
|
|
goto len_err;
|
|
pnpbios_parse_fixed_mem32_option(dev, p, len,
|
|
option_flags);
|
|
break;
|
|
|
|
case SMALL_TAG_IRQ:
|
|
if (len < 2 || len > 3)
|
|
goto len_err;
|
|
pnpbios_parse_irq_option(dev, p, len, option_flags);
|
|
break;
|
|
|
|
case SMALL_TAG_DMA:
|
|
if (len != 2)
|
|
goto len_err;
|
|
pnpbios_parse_dma_option(dev, p, len, option_flags);
|
|
break;
|
|
|
|
case SMALL_TAG_PORT:
|
|
if (len != 7)
|
|
goto len_err;
|
|
pnpbios_parse_port_option(dev, p, len, option_flags);
|
|
break;
|
|
|
|
case SMALL_TAG_VENDOR:
|
|
/* do nothing */
|
|
break;
|
|
|
|
case SMALL_TAG_FIXEDPORT:
|
|
if (len != 3)
|
|
goto len_err;
|
|
pnpbios_parse_fixed_port_option(dev, p, len,
|
|
option_flags);
|
|
break;
|
|
|
|
case SMALL_TAG_STARTDEP:
|
|
if (len > 1)
|
|
goto len_err;
|
|
priority = PNP_RES_PRIORITY_ACCEPTABLE;
|
|
if (len > 0)
|
|
priority = p[1];
|
|
option_flags = pnp_new_dependent_set(dev, priority);
|
|
break;
|
|
|
|
case SMALL_TAG_ENDDEP:
|
|
if (len != 0)
|
|
goto len_err;
|
|
option_flags = 0;
|
|
break;
|
|
|
|
case SMALL_TAG_END:
|
|
return p + 2;
|
|
|
|
default: /* an unknown tag */
|
|
len_err:
|
|
dev_err(&dev->dev, "unknown tag %#x length %d\n",
|
|
tag, len);
|
|
break;
|
|
}
|
|
|
|
/* continue to the next tag */
|
|
if (p[0] & LARGE_TAG)
|
|
p += len + 3;
|
|
else
|
|
p += len + 1;
|
|
}
|
|
|
|
dev_err(&dev->dev, "no end tag in resource structure\n");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Compatible Device IDs
|
|
*/
|
|
|
|
static unsigned char *pnpbios_parse_compatible_ids(unsigned char *p,
|
|
unsigned char *end,
|
|
struct pnp_dev *dev)
|
|
{
|
|
int len, tag;
|
|
u32 eisa_id;
|
|
char id[8];
|
|
struct pnp_id *dev_id;
|
|
|
|
if (!p)
|
|
return NULL;
|
|
|
|
while ((char *)p < (char *)end) {
|
|
|
|
/* determine the type of tag */
|
|
if (p[0] & LARGE_TAG) { /* large tag */
|
|
len = (p[2] << 8) | p[1];
|
|
tag = p[0];
|
|
} else { /* small tag */
|
|
len = p[0] & 0x07;
|
|
tag = ((p[0] >> 3) & 0x0f);
|
|
}
|
|
|
|
switch (tag) {
|
|
|
|
case LARGE_TAG_ANSISTR:
|
|
strncpy(dev->name, p + 3,
|
|
len >= PNP_NAME_LEN ? PNP_NAME_LEN - 2 : len);
|
|
dev->name[len >=
|
|
PNP_NAME_LEN ? PNP_NAME_LEN - 1 : len] = '\0';
|
|
break;
|
|
|
|
case SMALL_TAG_COMPATDEVID: /* compatible ID */
|
|
if (len != 4)
|
|
goto len_err;
|
|
eisa_id = p[1] | p[2] << 8 | p[3] << 16 | p[4] << 24;
|
|
pnp_eisa_id_to_string(eisa_id & PNP_EISA_ID_MASK, id);
|
|
dev_id = pnp_add_id(dev, id);
|
|
if (!dev_id)
|
|
return NULL;
|
|
break;
|
|
|
|
case SMALL_TAG_END:
|
|
p = p + 2;
|
|
return (unsigned char *)p;
|
|
break;
|
|
|
|
default: /* an unknown tag */
|
|
len_err:
|
|
dev_err(&dev->dev, "unknown tag %#x length %d\n",
|
|
tag, len);
|
|
break;
|
|
}
|
|
|
|
/* continue to the next tag */
|
|
if (p[0] & LARGE_TAG)
|
|
p += len + 3;
|
|
else
|
|
p += len + 1;
|
|
}
|
|
|
|
dev_err(&dev->dev, "no end tag in resource structure\n");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Allocated Resource Encoding
|
|
*/
|
|
|
|
static void pnpbios_encode_mem(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long base;
|
|
unsigned long len;
|
|
|
|
if (pnp_resource_enabled(res)) {
|
|
base = res->start;
|
|
len = resource_size(res);
|
|
} else {
|
|
base = 0;
|
|
len = 0;
|
|
}
|
|
|
|
p[4] = (base >> 8) & 0xff;
|
|
p[5] = ((base >> 8) >> 8) & 0xff;
|
|
p[6] = (base >> 8) & 0xff;
|
|
p[7] = ((base >> 8) >> 8) & 0xff;
|
|
p[10] = (len >> 8) & 0xff;
|
|
p[11] = ((len >> 8) >> 8) & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode mem %#lx-%#lx\n", base, base + len - 1);
|
|
}
|
|
|
|
static void pnpbios_encode_mem32(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long base;
|
|
unsigned long len;
|
|
|
|
if (pnp_resource_enabled(res)) {
|
|
base = res->start;
|
|
len = resource_size(res);
|
|
} else {
|
|
base = 0;
|
|
len = 0;
|
|
}
|
|
|
|
p[4] = base & 0xff;
|
|
p[5] = (base >> 8) & 0xff;
|
|
p[6] = (base >> 16) & 0xff;
|
|
p[7] = (base >> 24) & 0xff;
|
|
p[8] = base & 0xff;
|
|
p[9] = (base >> 8) & 0xff;
|
|
p[10] = (base >> 16) & 0xff;
|
|
p[11] = (base >> 24) & 0xff;
|
|
p[16] = len & 0xff;
|
|
p[17] = (len >> 8) & 0xff;
|
|
p[18] = (len >> 16) & 0xff;
|
|
p[19] = (len >> 24) & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode mem32 %#lx-%#lx\n", base, base + len - 1);
|
|
}
|
|
|
|
static void pnpbios_encode_fixed_mem32(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long base;
|
|
unsigned long len;
|
|
|
|
if (pnp_resource_enabled(res)) {
|
|
base = res->start;
|
|
len = resource_size(res);
|
|
} else {
|
|
base = 0;
|
|
len = 0;
|
|
}
|
|
|
|
p[4] = base & 0xff;
|
|
p[5] = (base >> 8) & 0xff;
|
|
p[6] = (base >> 16) & 0xff;
|
|
p[7] = (base >> 24) & 0xff;
|
|
p[8] = len & 0xff;
|
|
p[9] = (len >> 8) & 0xff;
|
|
p[10] = (len >> 16) & 0xff;
|
|
p[11] = (len >> 24) & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode fixed_mem32 %#lx-%#lx\n", base,
|
|
base + len - 1);
|
|
}
|
|
|
|
static void pnpbios_encode_irq(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long map;
|
|
|
|
if (pnp_resource_enabled(res))
|
|
map = 1 << res->start;
|
|
else
|
|
map = 0;
|
|
|
|
p[1] = map & 0xff;
|
|
p[2] = (map >> 8) & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode irq mask %#lx\n", map);
|
|
}
|
|
|
|
static void pnpbios_encode_dma(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long map;
|
|
|
|
if (pnp_resource_enabled(res))
|
|
map = 1 << res->start;
|
|
else
|
|
map = 0;
|
|
|
|
p[1] = map & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode dma mask %#lx\n", map);
|
|
}
|
|
|
|
static void pnpbios_encode_port(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long base;
|
|
unsigned long len;
|
|
|
|
if (pnp_resource_enabled(res)) {
|
|
base = res->start;
|
|
len = resource_size(res);
|
|
} else {
|
|
base = 0;
|
|
len = 0;
|
|
}
|
|
|
|
p[2] = base & 0xff;
|
|
p[3] = (base >> 8) & 0xff;
|
|
p[4] = base & 0xff;
|
|
p[5] = (base >> 8) & 0xff;
|
|
p[7] = len & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode io %#lx-%#lx\n", base, base + len - 1);
|
|
}
|
|
|
|
static void pnpbios_encode_fixed_port(struct pnp_dev *dev, unsigned char *p,
|
|
struct resource *res)
|
|
{
|
|
unsigned long base = res->start;
|
|
unsigned long len = resource_size(res);
|
|
|
|
if (pnp_resource_enabled(res)) {
|
|
base = res->start;
|
|
len = resource_size(res);
|
|
} else {
|
|
base = 0;
|
|
len = 0;
|
|
}
|
|
|
|
p[1] = base & 0xff;
|
|
p[2] = (base >> 8) & 0xff;
|
|
p[3] = len & 0xff;
|
|
|
|
pnp_dbg(&dev->dev, " encode fixed_io %#lx-%#lx\n", base,
|
|
base + len - 1);
|
|
}
|
|
|
|
static unsigned char *pnpbios_encode_allocated_resource_data(struct pnp_dev
|
|
*dev,
|
|
unsigned char *p,
|
|
unsigned char *end)
|
|
{
|
|
unsigned int len, tag;
|
|
int port = 0, irq = 0, dma = 0, mem = 0;
|
|
|
|
if (!p)
|
|
return NULL;
|
|
|
|
while ((char *)p < (char *)end) {
|
|
|
|
/* determine the type of tag */
|
|
if (p[0] & LARGE_TAG) { /* large tag */
|
|
len = (p[2] << 8) | p[1];
|
|
tag = p[0];
|
|
} else { /* small tag */
|
|
len = p[0] & 0x07;
|
|
tag = ((p[0] >> 3) & 0x0f);
|
|
}
|
|
|
|
switch (tag) {
|
|
|
|
case LARGE_TAG_MEM:
|
|
if (len != 9)
|
|
goto len_err;
|
|
pnpbios_encode_mem(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
|
|
case LARGE_TAG_MEM32:
|
|
if (len != 17)
|
|
goto len_err;
|
|
pnpbios_encode_mem32(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
|
|
case LARGE_TAG_FIXEDMEM32:
|
|
if (len != 9)
|
|
goto len_err;
|
|
pnpbios_encode_fixed_mem32(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
|
|
case SMALL_TAG_IRQ:
|
|
if (len < 2 || len > 3)
|
|
goto len_err;
|
|
pnpbios_encode_irq(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_IRQ, irq));
|
|
irq++;
|
|
break;
|
|
|
|
case SMALL_TAG_DMA:
|
|
if (len != 2)
|
|
goto len_err;
|
|
pnpbios_encode_dma(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_DMA, dma));
|
|
dma++;
|
|
break;
|
|
|
|
case SMALL_TAG_PORT:
|
|
if (len != 7)
|
|
goto len_err;
|
|
pnpbios_encode_port(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_IO, port));
|
|
port++;
|
|
break;
|
|
|
|
case SMALL_TAG_VENDOR:
|
|
/* do nothing */
|
|
break;
|
|
|
|
case SMALL_TAG_FIXEDPORT:
|
|
if (len != 3)
|
|
goto len_err;
|
|
pnpbios_encode_fixed_port(dev, p,
|
|
pnp_get_resource(dev, IORESOURCE_IO, port));
|
|
port++;
|
|
break;
|
|
|
|
case SMALL_TAG_END:
|
|
p = p + 2;
|
|
return (unsigned char *)p;
|
|
break;
|
|
|
|
default: /* an unknown tag */
|
|
len_err:
|
|
dev_err(&dev->dev, "unknown tag %#x length %d\n",
|
|
tag, len);
|
|
break;
|
|
}
|
|
|
|
/* continue to the next tag */
|
|
if (p[0] & LARGE_TAG)
|
|
p += len + 3;
|
|
else
|
|
p += len + 1;
|
|
}
|
|
|
|
dev_err(&dev->dev, "no end tag in resource structure\n");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Core Parsing Functions
|
|
*/
|
|
|
|
int __init pnpbios_parse_data_stream(struct pnp_dev *dev,
|
|
struct pnp_bios_node *node)
|
|
{
|
|
unsigned char *p = (char *)node->data;
|
|
unsigned char *end = (char *)(node->data + node->size);
|
|
|
|
p = pnpbios_parse_allocated_resource_data(dev, p, end);
|
|
if (!p)
|
|
return -EIO;
|
|
p = pnpbios_parse_resource_option_data(p, end, dev);
|
|
if (!p)
|
|
return -EIO;
|
|
p = pnpbios_parse_compatible_ids(p, end, dev);
|
|
if (!p)
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
int pnpbios_read_resources_from_node(struct pnp_dev *dev,
|
|
struct pnp_bios_node *node)
|
|
{
|
|
unsigned char *p = (char *)node->data;
|
|
unsigned char *end = (char *)(node->data + node->size);
|
|
|
|
p = pnpbios_parse_allocated_resource_data(dev, p, end);
|
|
if (!p)
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
int pnpbios_write_resources_to_node(struct pnp_dev *dev,
|
|
struct pnp_bios_node *node)
|
|
{
|
|
unsigned char *p = (char *)node->data;
|
|
unsigned char *end = (char *)(node->data + node->size);
|
|
|
|
p = pnpbios_encode_allocated_resource_data(dev, p, end);
|
|
if (!p)
|
|
return -EIO;
|
|
return 0;
|
|
}
|