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orinoco_usb: implement fw download

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This involves some refactorring of the common fw download code to
substitute ezusb versions of various functions.

Note that WPA-enabled firmwares (9.xx series) will not work fully with
orinoco_usb yet.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Kilroy
2010-05-01 14:05:43 +01:00
committed by John W. Linville
parent fc97431a50
commit 07cefe7ac9
6 changed files with 348 additions and 237 deletions
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241
drivers/net/wireless/orinoco/hermes_dld.c
View File

@@ -46,37 +46,11 @@
#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_DISABLED 0x0000 /* Auxiliary port is closed */
#define HERMES_AUX_PW0 0xFE01
#define HERMES_AUX_PW1 0xDC23
#define HERMES_AUX_PW2 0xBA45
/* HERMES_CMD_DOWNLD */
#define HERMES_PROGRAM_DISABLE (0x0000 | HERMES_CMD_DOWNLD)
#define HERMES_PROGRAM_ENABLE_VOLATILE (0x0100 | HERMES_CMD_DOWNLD)
#define HERMES_PROGRAM_ENABLE_NON_VOLATILE (0x0200 | HERMES_CMD_DOWNLD)
#define HERMES_PROGRAM_NON_VOLATILE (0x0300 | HERMES_CMD_DOWNLD)
/* End markers used in dblocks */
#define PDI_END 0x00000000 /* End of PDA */
#define BLOCK_END 0xFFFFFFFF /* Last image block */
#define TEXT_END 0x1A /* End of text header */
/* Limit the amout we try to download in a single shot.
* Size is in bytes.
*/
#define MAX_DL_SIZE 1024
#define LIMIT_PROGRAM_SIZE 0
/*
* The following structures have little-endian fields denoted by
* the leading underscore. Don't access them directly - use inline
@@ -165,41 +139,6 @@ pdi_len(const struct pdi *pdi)
return 2 * (le16_to_cpu(pdi->len) - 1);
}
/*** Hermes AUX control ***/
static inline void
hermes_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));
}
static inline int
hermes_aux_control(hermes_t *hw, int enabled)
{
int desired_state = enabled ? HERMES_AUX_ENABLED : HERMES_AUX_DISABLED;
int action = enabled ? HERMES_AUX_ENABLE : HERMES_AUX_DISABLE;
int i;
/* Already open? */
if (hermes_read_reg(hw, HERMES_CONTROL) == desired_state)
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, action);
for (i = 0; i < 20; i++) {
udelay(10);
if (hermes_read_reg(hw, HERMES_CONTROL) ==
desired_state)
return 0;
}
return -EBUSY;
}
/*** Plug Data Functions ***/
/*
@@ -271,62 +210,7 @@ hermes_plug_pdi(hermes_t *hw, const struct pdr *first_pdr,
return -EINVAL;
/* do the actual plugging */
hermes_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 hermes_read_pda(hermes_t *hw,
__le16 *pda,
u32 pda_addr,
u16 pda_len,
int use_eeprom) /* can we get this into hw? */
{
int ret;
u16 pda_size;
u16 data_len = pda_len;
__le16 *data = pda;
if (use_eeprom) {
/* PDA of spectrum symbol is in eeprom */
/* Issue command to read EEPROM */
ret = hw->ops->cmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
if (ret)
return ret;
} else {
/* wl_lkm does not include PDA size in the PDA area.
* We will pad the information into pda, so other routines
* don't have to be modified */
pda[0] = cpu_to_le16(pda_len - 2);
/* Includes CFG_PROD_DATA but not itself */
pda[1] = cpu_to_le16(0x0800); /* CFG_PROD_DATA */
data_len = pda_len - 4;
data = pda + 2;
}
/* Open auxiliary port */
ret = hermes_aux_control(hw, 1);
pr_debug(PFX "AUX enable returned %d\n", ret);
if (ret)
return ret;
/* read PDA from EEPROM */
hermes_aux_setaddr(hw, pda_addr);
hermes_read_words(hw, HERMES_AUXDATA, data, data_len / 2);
/* Close aux port */
ret = hermes_aux_control(hw, 0);
pr_debug(PFX "AUX disable returned %d\n", ret);
/* Check PDA length */
pda_size = le16_to_cpu(pda[0]);
pr_debug(PFX "Actual PDA length %d, Max allowed %d\n",
pda_size, pda_len);
if (pda_size > pda_len)
return -EINVAL;
hw->ops->program(hw, pdi->data, pdr_addr(pdr), pdi_len(pdi));
return 0;
}
@@ -389,101 +273,13 @@ hermes_blocks_length(const char *first_block, const void *end)
/*** Hermes programming ***/
/* About to start programming data (Hermes I)
* offset is the entry point
*
* Spectrum_cs' Symbol fw does not require this
* wl_lkm Agere fw does
* Don't know about intersil
*/
int hermesi_program_init(hermes_t *hw, u32 offset)
{
int err;
/* Disable interrupts?*/
/*hw->inten = 0x0;*/
/*hermes_write_regn(hw, INTEN, 0);*/
/*hermes_set_irqmask(hw, 0);*/
/* Acknowledge any outstanding command */
hermes_write_regn(hw, EVACK, 0xFFFF);
/* Using init_cmd_wait rather than cmd_wait */
err = hw->ops->init_cmd_wait(hw,
0x0100 | HERMES_CMD_INIT,
0, 0, 0, NULL);
if (err)
return err;
err = hw->ops->init_cmd_wait(hw,
0x0000 | HERMES_CMD_INIT,
0, 0, 0, NULL);
if (err)
return err;
err = hermes_aux_control(hw, 1);
pr_debug(PFX "AUX enable returned %d\n", err);
if (err)
return err;
pr_debug(PFX "Enabling volatile, EP 0x%08x\n", offset);
err = hw->ops->init_cmd_wait(hw,
HERMES_PROGRAM_ENABLE_VOLATILE,
offset & 0xFFFFu,
offset >> 16,
0,
NULL);
pr_debug(PFX "PROGRAM_ENABLE returned %d\n", err);
return err;
}
/* Done programming data (Hermes I)
*
* Spectrum_cs' Symbol fw does not require this
* wl_lkm Agere fw does
* Don't know about intersil
*/
int hermesi_program_end(hermes_t *hw)
{
struct hermes_response resp;
int rc = 0;
int err;
rc = hw->ops->cmd_wait(hw, HERMES_PROGRAM_DISABLE, 0, &resp);
pr_debug(PFX "PROGRAM_DISABLE returned %d, "
"r0 0x%04x, r1 0x%04x, r2 0x%04x\n",
rc, resp.resp0, resp.resp1, resp.resp2);
if ((rc == 0) &&
((resp.status & HERMES_STATUS_CMDCODE) != HERMES_CMD_DOWNLD))
rc = -EIO;
err = hermes_aux_control(hw, 0);
pr_debug(PFX "AUX disable returned %d\n", err);
/* Acknowledge any outstanding command */
hermes_write_regn(hw, EVACK, 0xFFFF);
/* Reinitialise, ignoring return */
(void) hw->ops->init_cmd_wait(hw, 0x0000 | HERMES_CMD_INIT,
0, 0, 0, NULL);
return rc ? rc : err;
}
/* Program the data blocks */
int hermes_program(hermes_t *hw, const char *first_block, const void *end)
{
const struct dblock *blk;
u32 blkaddr;
u32 blklen;
#if LIMIT_PROGRAM_SIZE
u32 addr;
u32 len;
#endif
int err = 0;
blk = (const struct dblock *) first_block;
@@ -498,30 +294,10 @@ int hermes_program(hermes_t *hw, const char *first_block, const void *end)
pr_debug(PFX "Programming block of length %d "
"to address 0x%08x\n", blklen, blkaddr);
#if !LIMIT_PROGRAM_SIZE
/* wl_lkm driver splits this into writes of 2000 bytes */
hermes_aux_setaddr(hw, blkaddr);
hermes_write_bytes(hw, HERMES_AUXDATA, blk->data,
blklen);
#else
len = (blklen < MAX_DL_SIZE) ? blklen : MAX_DL_SIZE;
addr = blkaddr;
err = hw->ops->program(hw, blk->data, blkaddr, blklen);
if (err)
break;
while (addr < (blkaddr + blklen)) {
pr_debug(PFX "Programming subblock of length %d "
"to address 0x%08x. Data @ %p\n",
len, addr, &blk->data[addr - blkaddr]);
hermes_aux_setaddr(hw, addr);
hermes_write_bytes(hw, HERMES_AUXDATA,
&blk->data[addr - blkaddr],
len);
addr += len;
len = ((blkaddr + blklen - addr) < MAX_DL_SIZE) ?
(blkaddr + blklen - addr) : MAX_DL_SIZE;
}
#endif
blk = (const struct dblock *) &blk->data[blklen];
if ((void *) blk > (end - sizeof(*blk)))
@@ -530,7 +306,7 @@ int hermes_program(hermes_t *hw, const char *first_block, const void *end)
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
}
return 0;
return err;
}
/*** Default plugging data for Hermes I ***/
@@ -690,9 +466,8 @@ int hermes_apply_pda_with_defaults(hermes_t *hw,
if ((pdi_len(pdi) == pdr_len(pdr)) &&
((void *) pdi->data + pdi_len(pdi) < pda_end)) {
/* do the actual plugging */
hermes_aux_setaddr(hw, pdr_addr(pdr));
hermes_write_bytes(hw, HERMES_AUXDATA,
pdi->data, pdi_len(pdi));
hw->ops->program(hw, pdi->data, pdr_addr(pdr),
pdi_len(pdi));
}
}