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orinoco: Move firmware download functionality into new module

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Move the functionality from spectrum_cs to hermes_dld in preparation for
making it more generic and usable by other orinoco drivers.

Signed-off-by: David Kilroy <kilroyd@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Kilroy 2008-08-21 23:27:51 +01:00 committed by John W. Linville
parent fc5a62d8b7
commit f482eb797a
4 changed files with 385 additions and 274 deletions
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2
drivers/net/wireless/Makefile
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@ -16,7 +16,7 @@ obj-$(CONFIG_WAVELAN) += wavelan.o
obj-$(CONFIG_PCMCIA_NETWAVE) += netwave_cs.o
obj-$(CONFIG_PCMCIA_WAVELAN) += wavelan_cs.o
obj-$(CONFIG_HERMES) += orinoco.o hermes.o
obj-$(CONFIG_HERMES) += orinoco.o hermes.o hermes_dld.o
obj-$(CONFIG_PCMCIA_HERMES) += orinoco_cs.o
obj-$(CONFIG_APPLE_AIRPORT) += airport.o
obj-$(CONFIG_PLX_HERMES) += orinoco_plx.o

338
drivers/net/wireless/hermes_dld.c Normal file
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@ -0,0 +1,338 @@
/*
* Hermes download helper driver.
*
* This could be entirely merged into hermes.c.
*
* I'm keeping it separate to minimise the amount of merging between
* kernel upgrades. It also means the memory overhead for drivers that
* don't need firmware download low.
*
* This driver:
* - is capable of writing to the volatile area of the hermes device
* - is currently not capable of writing to non-volatile areas
* - provide helpers to identify and update plugin data
* - is not capable of interpreting a fw image directly. That is up to
* the main card driver.
* - deals with Hermes I devices. It can probably be modified to deal
* with Hermes II devices
*
* Copyright (C) 2007, David Kilroy
*
* Plug data code slightly modified from spectrum_cs driver
* Copyright (C) 2002-2005 Pavel Roskin <proski@gnu.org>
* Portions based on information in wl_lkm_718 Agere driver
* COPYRIGHT (C) 2001-2004 by Agere Systems Inc. All Rights Reserved
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License version 2 (the "GPL"), in
* which case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file
* under either the MPL or the GPL.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include "hermes.h"
#include "hermes_dld.h"
MODULE_DESCRIPTION("Download helper for Lucent Hermes chipset");
MODULE_AUTHOR("David Kilroy <kilroyd@gmail.com>");
MODULE_LICENSE("Dual MPL/GPL");
#define PFX "hermes_dld: "
/*
* AUX port access. To unlock the AUX port write the access keys to the
* PARAM0-2 registers, then write HERMES_AUX_ENABLE to the HERMES_CONTROL
* register. Then read it and make sure it's HERMES_AUX_ENABLED.
*/
#define HERMES_AUX_ENABLE 0x8000 /* Enable auxiliary port access */
#define HERMES_AUX_DISABLE 0x4000 /* Disable to auxiliary port access */
#define HERMES_AUX_ENABLED 0xC000 /* Auxiliary port is open */
#define HERMES_AUX_PW0 0xFE01
#define HERMES_AUX_PW1 0xDC23
#define HERMES_AUX_PW2 0xBA45
/* End markers */
#define PDI_END 0x00000000 /* End of PDA */
#define BLOCK_END 0xFFFFFFFF /* Last image block */
/*
* The following structures have little-endian fields denoted by
* the leading underscore. Don't access them directly - use inline
* functions defined below.
*/
/*
* The binary image to be downloaded consists of series of data blocks.
* Each block has the following structure.
*/
struct dblock {
__le32 addr; /* adapter address where to write the block */
__le16 len; /* length of the data only, in bytes */
char data[0]; /* data to be written */
} __attribute__ ((packed));
/*
* Plug Data References are located in in the image after the last data
* block. They refer to areas in the adapter memory where the plug data
* items with matching ID should be written.
*/
struct pdr {
__le32 id; /* record ID */
__le32 addr; /* adapter address where to write the data */
__le32 len; /* expected length of the data, in bytes */
char next[0]; /* next PDR starts here */
} __attribute__ ((packed));
/*
* Plug Data Items are located in the EEPROM read from the adapter by
* primary firmware. They refer to the device-specific data that should
* be plugged into the secondary firmware.
*/
struct pdi {
__le16 len; /* length of ID and data, in words */
__le16 id; /* record ID */
char data[0]; /* plug data */
} __attribute__ ((packed));
/* Functions for access to little-endian data */
static inline u32
dblock_addr(const struct dblock *blk)
{
return le32_to_cpu(blk->addr);
}
static inline u32
dblock_len(const struct dblock *blk)
{
return le16_to_cpu(blk->len);
}
static inline u32
pdr_id(const struct pdr *pdr)
{
return le32_to_cpu(pdr->id);
}
static inline u32
pdr_addr(const struct pdr *pdr)
{
return le32_to_cpu(pdr->addr);
}
static inline u32
pdr_len(const struct pdr *pdr)
{
return le32_to_cpu(pdr->len);
}
static inline u32
pdi_id(const struct pdi *pdi)
{
return le16_to_cpu(pdi->id);
}
/* Return length of the data only, in bytes */
static inline u32
pdi_len(const struct pdi *pdi)
{
return 2 * (le16_to_cpu(pdi->len) - 1);
}
/* Set address of the auxiliary port */
static inline void
spectrum_aux_setaddr(hermes_t *hw, u32 addr)
{
hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7));
hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F));
}
/* Open access to the auxiliary port */
static int
spectrum_aux_open(hermes_t *hw)
{
int i;
/* Already open? */
if (hermes_read_reg(hw, HERMES_CONTROL) == HERMES_AUX_ENABLED)
return 0;
hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0);
hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1);
hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2);
hermes_write_reg(hw, HERMES_CONTROL, HERMES_AUX_ENABLE);
for (i = 0; i < 20; i++) {
udelay(10);
if (hermes_read_reg(hw, HERMES_CONTROL) ==
HERMES_AUX_ENABLED)
return 0;
}
return -EBUSY;
}
/*
* Scan PDR for the record with the specified RECORD_ID.
* If it's not found, return NULL.
*/
static struct pdr *
spectrum_find_pdr(struct pdr *first_pdr, u32 record_id)
{
struct pdr *pdr = first_pdr;
while (pdr_id(pdr) != PDI_END) {
/*
* PDR area is currently not terminated by PDI_END.
* It's followed by CRC records, which have the type
* field where PDR has length. The type can be 0 or 1.
*/
if (pdr_len(pdr) < 2)
return NULL;
/* If the record ID matches, we are done */
if (pdr_id(pdr) == record_id)
return pdr;
pdr = (struct pdr *) pdr->next;
}
return NULL;
}
/* Process one Plug Data Item - find corresponding PDR and plug it */
static int
spectrum_plug_pdi(hermes_t *hw, struct pdr *first_pdr, struct pdi *pdi)
{
struct pdr *pdr;
/* Find the PDI corresponding to this PDR */
pdr = spectrum_find_pdr(first_pdr, pdi_id(pdi));
/* No match is found, safe to ignore */
if (!pdr)
return 0;
/* Lengths of the data in PDI and PDR must match */
if (pdi_len(pdi) != pdr_len(pdr))
return -EINVAL;
/* do the actual plugging */
spectrum_aux_setaddr(hw, pdr_addr(pdr));
hermes_write_bytes(hw, HERMES_AUXDATA, pdi->data, pdi_len(pdi));
return 0;
}
/* Read PDA from the adapter */
int
spectrum_read_pda(hermes_t *hw, __le16 *pda, int pda_len)
{
int ret;
int pda_size;
/* Issue command to read EEPROM */
ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
if (ret)
return ret;
/* Open auxiliary port */
ret = spectrum_aux_open(hw);
if (ret)
return ret;
/* read PDA from EEPROM */
spectrum_aux_setaddr(hw, PDA_ADDR);
hermes_read_words(hw, HERMES_AUXDATA, pda, pda_len / 2);
/* Check PDA length */
pda_size = le16_to_cpu(pda[0]);
if (pda_size > pda_len)
return -EINVAL;
return 0;
}
EXPORT_SYMBOL(spectrum_read_pda);
/* Parse PDA and write the records into the adapter */
int
spectrum_apply_pda(hermes_t *hw, const struct dblock *first_block,
__le16 *pda)
{
int ret;
struct pdi *pdi;
struct pdr *first_pdr;
const struct dblock *blk = first_block;
/* Skip all blocks to locate Plug Data References */
while (dblock_addr(blk) != BLOCK_END)
blk = (struct dblock *) &blk->data[dblock_len(blk)];
first_pdr = (struct pdr *) blk;
/* Go through every PDI and plug them into the adapter */
pdi = (struct pdi *) (pda + 2);
while (pdi_id(pdi) != PDI_END) {
ret = spectrum_plug_pdi(hw, first_pdr, pdi);
if (ret)
return ret;
/* Increment to the next PDI */
pdi = (struct pdi *) &pdi->data[pdi_len(pdi)];
}
return 0;
}
EXPORT_SYMBOL(spectrum_apply_pda);
/* Load firmware blocks into the adapter */
int
spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block)
{
const struct dblock *blk;
u32 blkaddr;
u32 blklen;
blk = first_block;
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
while (dblock_addr(blk) != BLOCK_END) {
spectrum_aux_setaddr(hw, blkaddr);
hermes_write_bytes(hw, HERMES_AUXDATA, blk->data,
blklen);
blk = (struct dblock *) &blk->data[blklen];
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
}
return 0;
}
EXPORT_SYMBOL(spectrum_load_blocks);
static int __init init_hermes_dld(void)
{
return 0;
}
static void __exit exit_hermes_dld(void)
{
}
module_init(init_hermes_dld);
module_exit(exit_hermes_dld);

45
drivers/net/wireless/hermes_dld.h Normal file
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@ -0,0 +1,45 @@
/*
* Copyright (C) 2007, David Kilroy
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License version 2 (the "GPL"), in
* which case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file
* under either the MPL or the GPL.
*/
#ifndef _HERMES_DLD_H
#define _HERMES_DLD_H
#include "hermes.h"
/* Position of PDA in the adapter memory */
#define EEPROM_ADDR 0x3000
#define EEPROM_LEN 0x200
#define PDA_OFFSET 0x100
#define PDA_ADDR (EEPROM_ADDR + PDA_OFFSET)
#define PDA_WORDS ((EEPROM_LEN - PDA_OFFSET) / 2)
struct dblock;
int spectrum_read_pda(hermes_t *hw, __le16 *pda, int pda_len);
int spectrum_apply_pda(hermes_t *hw, const struct dblock *first_block,
__le16 *pda);
int spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block);
#endif /* _HERMES_DLD_H */

274
drivers/net/wireless/spectrum_cs.c
View File

@ -33,6 +33,7 @@
#include <pcmcia/ds.h>
#include "orinoco.h"
#include "hermes_dld.h"
static const char primary_fw_name[] = "symbol_sp24t_prim_fw";
static const char secondary_fw_name[] = "symbol_sp24t_sec_fw";
@ -88,144 +89,9 @@ static void spectrum_cs_release(struct pcmcia_device *link);
#define HCR_IDLE 0x0E /* don't run firmware after reset */
#define HCR_MEM16 0x10 /* memory width bit, should be preserved */
/*
* AUX port access. To unlock the AUX port write the access keys to the
* PARAM0-2 registers, then write HERMES_AUX_ENABLE to the HERMES_CONTROL
* register. Then read it and make sure it's HERMES_AUX_ENABLED.
*/
#define HERMES_AUX_ENABLE 0x8000 /* Enable auxiliary port access */
#define HERMES_AUX_DISABLE 0x4000 /* Disable to auxiliary port access */
#define HERMES_AUX_ENABLED 0xC000 /* Auxiliary port is open */
#define HERMES_AUX_PW0 0xFE01
#define HERMES_AUX_PW1 0xDC23
#define HERMES_AUX_PW2 0xBA45
/* End markers */
#define PDI_END 0x00000000 /* End of PDA */
#define BLOCK_END 0xFFFFFFFF /* Last image block */
#define TEXT_END 0x1A /* End of text header */
/*
* The following structures have little-endian fields denoted by
* the leading underscore. Don't access them directly - use inline
* functions defined below.
*/
/*
* The binary image to be downloaded consists of series of data blocks.
* Each block has the following structure.
*/
struct dblock {
__le32 addr; /* adapter address where to write the block */
__le16 len; /* length of the data only, in bytes */
char data[0]; /* data to be written */
} __attribute__ ((packed));
/*
* Plug Data References are located in in the image after the last data
* block. They refer to areas in the adapter memory where the plug data
* items with matching ID should be written.
*/
struct pdr {
__le32 id; /* record ID */
__le32 addr; /* adapter address where to write the data */
__le32 len; /* expected length of the data, in bytes */
char next[0]; /* next PDR starts here */
} __attribute__ ((packed));
/*
* Plug Data Items are located in the EEPROM read from the adapter by
* primary firmware. They refer to the device-specific data that should
* be plugged into the secondary firmware.
*/
struct pdi {
__le16 len; /* length of ID and data, in words */
__le16 id; /* record ID */
char data[0]; /* plug data */
} __attribute__ ((packed));
/* Functions for access to little-endian data */
static inline u32
dblock_addr(const struct dblock *blk)
{
return le32_to_cpu(blk->addr);
}
static inline u32
dblock_len(const struct dblock *blk)
{
return le16_to_cpu(blk->len);
}
static inline u32
pdr_id(const struct pdr *pdr)
{
return le32_to_cpu(pdr->id);
}
static inline u32
pdr_addr(const struct pdr *pdr)
{
return le32_to_cpu(pdr->addr);
}
static inline u32
pdr_len(const struct pdr *pdr)
{
return le32_to_cpu(pdr->len);
}
static inline u32
pdi_id(const struct pdi *pdi)
{
return le16_to_cpu(pdi->id);
}
/* Return length of the data only, in bytes */
static inline u32
pdi_len(const struct pdi *pdi)
{
return 2 * (le16_to_cpu(pdi->len) - 1);
}
/* Set address of the auxiliary port */
static inline void
spectrum_aux_setaddr(hermes_t *hw, u32 addr)
{
hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7));
hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F));
}
/* Open access to the auxiliary port */
static int
spectrum_aux_open(hermes_t *hw)
{
int i;
/* Already open? */
if (hermes_read_reg(hw, HERMES_CONTROL) == HERMES_AUX_ENABLED)
return 0;
hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0);
hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1);
hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2);
hermes_write_reg(hw, HERMES_CONTROL, HERMES_AUX_ENABLE);
for (i = 0; i < 20; i++) {
udelay(10);
if (hermes_read_reg(hw, HERMES_CONTROL) ==
HERMES_AUX_ENABLED)
return 0;
}
return -EBUSY;
}
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
@ -293,144 +159,6 @@ spectrum_reset(struct pcmcia_device *link, int idle)
}
/*
* Scan PDR for the record with the specified RECORD_ID.
* If it's not found, return NULL.
*/
static struct pdr *
spectrum_find_pdr(struct pdr *first_pdr, u32 record_id)
{
struct pdr *pdr = first_pdr;
while (pdr_id(pdr) != PDI_END) {
/*
* PDR area is currently not terminated by PDI_END.
* It's followed by CRC records, which have the type
* field where PDR has length. The type can be 0 or 1.
*/
if (pdr_len(pdr) < 2)
return NULL;
/* If the record ID matches, we are done */
if (pdr_id(pdr) == record_id)
return pdr;
pdr = (struct pdr *) pdr->next;
}
return NULL;
}
/* Process one Plug Data Item - find corresponding PDR and plug it */
static int
spectrum_plug_pdi(hermes_t *hw, struct pdr *first_pdr, struct pdi *pdi)
{
struct pdr *pdr;
/* Find the PDI corresponding to this PDR */
pdr = spectrum_find_pdr(first_pdr, pdi_id(pdi));
/* No match is found, safe to ignore */
if (!pdr)
return 0;
/* Lengths of the data in PDI and PDR must match */
if (pdi_len(pdi) != pdr_len(pdr))
return -EINVAL;
/* do the actual plugging */
spectrum_aux_setaddr(hw, pdr_addr(pdr));
hermes_write_bytes(hw, HERMES_AUXDATA, pdi->data, pdi_len(pdi));
return 0;
}
/* Read PDA from the adapter */
static int
spectrum_read_pda(hermes_t *hw, __le16 *pda, int pda_len)
{
int ret;
int pda_size;
/* Issue command to read EEPROM */
ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
if (ret)
return ret;
/* Open auxiliary port */
ret = spectrum_aux_open(hw);
if (ret)
return ret;
/* read PDA from EEPROM */
spectrum_aux_setaddr(hw, PDA_ADDR);
hermes_read_words(hw, HERMES_AUXDATA, pda, pda_len / 2);
/* Check PDA length */
pda_size = le16_to_cpu(pda[0]);
if (pda_size > pda_len)
return -EINVAL;
return 0;
}
/* Parse PDA and write the records into the adapter */
static int
spectrum_apply_pda(hermes_t *hw, const struct dblock *first_block,
__le16 *pda)
{
int ret;
struct pdi *pdi;
struct pdr *first_pdr;
const struct dblock *blk = first_block;
/* Skip all blocks to locate Plug Data References */
while (dblock_addr(blk) != BLOCK_END)
blk = (struct dblock *) &blk->data[dblock_len(blk)];
first_pdr = (struct pdr *) blk;
/* Go through every PDI and plug them into the adapter */
pdi = (struct pdi *) (pda + 2);
while (pdi_id(pdi) != PDI_END) {
ret = spectrum_plug_pdi(hw, first_pdr, pdi);
if (ret)
return ret;
/* Increment to the next PDI */
pdi = (struct pdi *) &pdi->data[pdi_len(pdi)];
}
return 0;
}
/* Load firmware blocks into the adapter */
static int
spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block)
{
const struct dblock *blk;
u32 blkaddr;
u32 blklen;
blk = first_block;
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
while (dblock_addr(blk) != BLOCK_END) {
spectrum_aux_setaddr(hw, blkaddr);
hermes_write_bytes(hw, HERMES_AUXDATA, blk->data,
blklen);
blk = (struct dblock *) &blk->data[blklen];
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
}
return 0;
}
/*
* Process a firmware image - stop the card, load the firmware, reset
* the card and make sure it responds. For the secondary firmware take