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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); 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 * Either the device driver (i.e. the host) or the firmware can
* load eeprom data into the designated region in SRAM. If neither * 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) static void ipw_eeprom_init_sram(struct ipw_priv *priv)
{ {
int i; int i;
__le16 *eeprom = (__le16 *) priv->eeprom;
IPW_DEBUG_TRACE(">>\n"); 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 If the data looks correct, then copy it to our private
copy. Otherwise let the firmware know to perform the operation 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 */ /* ack fw init done interrupt */
ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); 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; priv->eeprom_delay = 1;
ipw_read_eeprom(priv);
/* initialize the eeprom region of sram */
ipw_eeprom_init_sram(priv); ipw_eeprom_init_sram(priv);
/* enable interrupts */ /* enable interrupts */