xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

orinoco_usb: implement fw download

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

208
drivers/net/wireless/orinoco/hermes.c
View File

@@ -51,6 +51,26 @@
#define CMD_COMPL_TIMEOUT (20000) /* in iterations of ~10us */
#define ALLOC_COMPL_TIMEOUT (1000) /* in iterations of ~10us */
/*
* 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)
/*
* Debugging helpers
*/
@@ -170,6 +190,7 @@ void hermes_struct_init(hermes_t *hw, void __iomem *address, int reg_spacing)
hw->iobase = address;
hw->reg_spacing = reg_spacing;
hw->inten = 0x0;
hw->eeprom_pda = false;
hw->ops = &hermes_ops_local;
}
EXPORT_SYMBOL(hermes_struct_init);
@@ -529,6 +550,189 @@ static int hermes_write_ltv(hermes_t *hw, int bap, u16 rid,
return err;
}
/*** 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;
}
/*** 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
*/
static 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("AUX enable returned %d\n", err);
if (err)
return err;
pr_debug("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("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
*/
static 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("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("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;
}
static int hermes_program_bytes(struct hermes *hw, const char *data,
u32 addr, u32 len)
{
/* wl lkm splits the programming into chunks of 2000 bytes.
* This restriction appears to come from USB. The PCMCIA
* adapters can program the whole lot in one go */
hermes_aux_setaddr(hw, addr);
hermes_write_bytes(hw, HERMES_AUXDATA, data, len);
return 0;
}
/* Read PDA from the adapter */
static int hermes_read_pda(hermes_t *hw, __le16 *pda, u32 pda_addr, u16 pda_len)
{
int ret;
u16 pda_size;
u16 data_len = pda_len;
__le16 *data = pda;
if (hw->eeprom_pda) {
/* 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("AUX enable returned %d\n", ret);
if (ret)
return ret;
/* Read PDA */
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("AUX disable returned %d\n", ret);
/* Check PDA length */
pda_size = le16_to_cpu(pda[0]);
pr_debug("Actual PDA length %d, Max allowed %d\n",
pda_size, pda_len);
if (pda_size > pda_len)
return -EINVAL;
return 0;
}
static void hermes_lock_irqsave(spinlock_t *lock,
unsigned long *flags) __acquires(lock)
{
@@ -561,6 +765,10 @@ static const struct hermes_ops hermes_ops_local = {
.write_ltv = hermes_write_ltv,
.bap_pread = hermes_bap_pread,
.bap_pwrite = hermes_bap_pwrite,
.read_pda = hermes_read_pda,
.program_init = hermesi_program_init,
.program_end = hermesi_program_end,
.program = hermes_program_bytes,
.lock_irqsave = hermes_lock_irqsave,
.unlock_irqrestore = hermes_unlock_irqrestore,
.lock_irq = hermes_lock_irq,