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net/wireless: ipw2200: introduce ipw_read_eeprom function 

We separate reading of device's eeprom content from writing it back
to the device's sram.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislav Yakovlev 2012-05-17 15:56:35 -04:00 committed by John W. Linville
parent 605b73af32
commit fdbfff7340
1 changed files with 17 additions and 6 deletions
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23
drivers/net/wireless/ipw2x00/ipw2200.c
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@ -2701,6 +2701,20 @@ static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
}
static void ipw_read_eeprom(struct ipw_priv *priv)
{
int i;
__le16 *eeprom = (__le16 *) priv->eeprom;
IPW_DEBUG_TRACE(">>\n");
/* read entire contents of eeprom into private buffer */
for (i = 0; i < 128; i++)
eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
IPW_DEBUG_TRACE("<<\n");
}
/*
* Either the device driver (i.e. the host) or the firmware can
* load eeprom data into the designated region in SRAM. If neither
@ -2712,14 +2726,9 @@ static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
static void ipw_eeprom_init_sram(struct ipw_priv *priv)
{
int i;
__le16 *eeprom = (__le16 *) priv->eeprom;
IPW_DEBUG_TRACE(">>\n");
/* read entire contents of eeprom into private buffer */
for (i = 0; i < 128; i++)
eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
/*
If the data looks correct, then copy it to our private
copy. Otherwise let the firmware know to perform the operation
@ -3643,8 +3652,10 @@ static int ipw_load(struct ipw_priv *priv)
/* ack fw init done interrupt */
ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
/* read eeprom data and initialize the eeprom region of sram */
/* read eeprom data */
priv->eeprom_delay = 1;
ipw_read_eeprom(priv);
/* initialize the eeprom region of sram */
ipw_eeprom_init_sram(priv);
/* enable interrupts */