From: Sujith Manoharan <Sujith.Manoharan@xxxxxxxxxxx>
For USB devices, reading the EEPROM data can be offloaded
to the target. Use multiple register reads to take advantage
of this feature to reduce initialization time.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/eeprom.c | 32 ++++++++++++++++++
drivers/net/wireless/ath/ath9k/eeprom.h | 2 +
drivers/net/wireless/ath/ath9k/eeprom_4k.c | 41 +++++++++++++++++------
drivers/net/wireless/ath/ath9k/eeprom_9287.c | 45 +++++++++++++++++--------
drivers/net/wireless/ath/ath9k/eeprom_def.c | 32 ++++++++++++++++--
5 files changed, 123 insertions(+), 29 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c
index d051631..8c18bed 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -89,6 +89,38 @@ bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, u16 listSize,
return false;
}
+void ath9k_hw_usb_gen_fill_eeprom(struct ath_hw *ah, u16 *eep_data,
+ int eep_start_loc, int size)
+{
+ int i = 0, j, addr;
+ u32 addrdata[8];
+ u32 data[8];
+
+ for (addr = 0; addr < size; addr++) {
+ addrdata[i] = AR5416_EEPROM_OFFSET +
+ ((addr + eep_start_loc) << AR5416_EEPROM_S);
+ i++;
+ if (i == 8) {
+ REG_READ_MULTI(ah, addrdata, data, i);
+
+ for (j = 0; j < i; j++) {
+ *eep_data = data[j];
+ eep_data++;
+ }
+ i = 0;
+ }
+ }
+
+ if (i != 0) {
+ REG_READ_MULTI(ah, addrdata, data, i);
+
+ for (j = 0; j < i; j++) {
+ *eep_data = data[j];
+ eep_data++;
+ }
+ }
+}
+
bool ath9k_hw_nvram_read(struct ath_common *common, u32 off, u16 *data)
{
return common->bus_ops->eeprom_read(common, off, data);
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 58e2ddc..bd82447 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -665,6 +665,8 @@ int16_t ath9k_hw_interpolate(u16 target, u16 srcLeft, u16 srcRight,
bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, u16 listSize,
u16 *indexL, u16 *indexR);
bool ath9k_hw_nvram_read(struct ath_common *common, u32 off, u16 *data);
+void ath9k_hw_usb_gen_fill_eeprom(struct ath_hw *ah, u16 *eep_data,
+ int eep_start_loc, int size);
void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList,
u8 *pVpdList, u16 numIntercepts,
u8 *pRetVpdList);
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
index fbdff7e..bc77a30 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
@@ -27,19 +27,13 @@ static int ath9k_hw_4k_get_eeprom_rev(struct ath_hw *ah)
return ((ah->eeprom.map4k.baseEepHeader.version) & 0xFFF);
}
-static bool ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
-{
#define SIZE_EEPROM_4K (sizeof(struct ar5416_eeprom_4k) / sizeof(u16))
+
+static bool __ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
+{
struct ath_common *common = ath9k_hw_common(ah);
u16 *eep_data = (u16 *)&ah->eeprom.map4k;
- int addr, eep_start_loc = 0;
-
- eep_start_loc = 64;
-
- if (!ath9k_hw_use_flash(ah)) {
- ath_dbg(common, ATH_DBG_EEPROM,
- "Reading from EEPROM, not flash\n");
- }
+ int addr, eep_start_loc = 64;
for (addr = 0; addr < SIZE_EEPROM_4K; addr++) {
if (!ath9k_hw_nvram_read(common, addr + eep_start_loc, eep_data)) {
@@ -51,9 +45,34 @@ static bool ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
}
return true;
-#undef SIZE_EEPROM_4K
}
+static bool __ath9k_hw_usb_4k_fill_eeprom(struct ath_hw *ah)
+{
+ u16 *eep_data = (u16 *)&ah->eeprom.map4k;
+
+ ath9k_hw_usb_gen_fill_eeprom(ah, eep_data, 64, SIZE_EEPROM_4K);
+
+ return true;
+}
+
+static bool ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (!ath9k_hw_use_flash(ah)) {
+ ath_dbg(common, ATH_DBG_EEPROM,
+ "Reading from EEPROM, not flash\n");
+ }
+
+ if (common->bus_ops->ath_bus_type == ATH_USB)
+ return __ath9k_hw_usb_4k_fill_eeprom(ah);
+ else
+ return __ath9k_hw_4k_fill_eeprom(ah);
+}
+
+#undef SIZE_EEPROM_4K
+
static int ath9k_hw_4k_check_eeprom(struct ath_hw *ah)
{
#define EEPROM_4K_SIZE (sizeof(struct ar5416_eeprom_4k) / sizeof(u16))
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
index 9b6bc8a..8cd8333 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
@@ -17,7 +17,7 @@
#include "hw.h"
#include "ar9002_phy.h"
-#define NUM_EEP_WORDS (sizeof(struct ar9287_eeprom) / sizeof(u16))
+#define SIZE_EEPROM_AR9287 (sizeof(struct ar9287_eeprom) / sizeof(u16))
static int ath9k_hw_ar9287_get_eeprom_ver(struct ath_hw *ah)
{
@@ -29,25 +29,15 @@ static int ath9k_hw_ar9287_get_eeprom_rev(struct ath_hw *ah)
return (ah->eeprom.map9287.baseEepHeader.version) & 0xFFF;
}
-static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
+static bool __ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
{
struct ar9287_eeprom *eep = &ah->eeprom.map9287;
struct ath_common *common = ath9k_hw_common(ah);
u16 *eep_data;
- int addr, eep_start_loc;
+ int addr, eep_start_loc = AR9287_EEP_START_LOC;
eep_data = (u16 *)eep;
- if (common->bus_ops->ath_bus_type == ATH_USB)
- eep_start_loc = AR9287_HTC_EEP_START_LOC;
- else
- eep_start_loc = AR9287_EEP_START_LOC;
-
- if (!ath9k_hw_use_flash(ah)) {
- ath_dbg(common, ATH_DBG_EEPROM,
- "Reading from EEPROM, not flash\n");
- }
-
- for (addr = 0; addr < NUM_EEP_WORDS; addr++) {
+ for (addr = 0; addr < SIZE_EEPROM_AR9287; addr++) {
if (!ath9k_hw_nvram_read(common, addr + eep_start_loc,
eep_data)) {
ath_dbg(common, ATH_DBG_EEPROM,
@@ -60,6 +50,31 @@ static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
return true;
}
+static bool __ath9k_hw_usb_ar9287_fill_eeprom(struct ath_hw *ah)
+{
+ u16 *eep_data = (u16 *)&ah->eeprom.map9287;
+
+ ath9k_hw_usb_gen_fill_eeprom(ah, eep_data,
+ AR9287_HTC_EEP_START_LOC,
+ SIZE_EEPROM_AR9287);
+ return true;
+}
+
+static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (!ath9k_hw_use_flash(ah)) {
+ ath_dbg(common, ATH_DBG_EEPROM,
+ "Reading from EEPROM, not flash\n");
+ }
+
+ if (common->bus_ops->ath_bus_type == ATH_USB)
+ return __ath9k_hw_usb_ar9287_fill_eeprom(ah);
+ else
+ return __ath9k_hw_ar9287_fill_eeprom(ah);
+}
+
static int ath9k_hw_ar9287_check_eeprom(struct ath_hw *ah)
{
u32 sum = 0, el, integer;
@@ -86,7 +101,7 @@ static int ath9k_hw_ar9287_check_eeprom(struct ath_hw *ah)
need_swap = true;
eepdata = (u16 *)(&ah->eeprom);
- for (addr = 0; addr < NUM_EEP_WORDS; addr++) {
+ for (addr = 0; addr < SIZE_EEPROM_AR9287; addr++) {
temp = swab16(*eepdata);
*eepdata = temp;
eepdata++;
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c
index 749a936..c9318ff 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
@@ -86,9 +86,10 @@ static int ath9k_hw_def_get_eeprom_rev(struct ath_hw *ah)
return ((ah->eeprom.def.baseEepHeader.version) & 0xFFF);
}
-static bool ath9k_hw_def_fill_eeprom(struct ath_hw *ah)
-{
#define SIZE_EEPROM_DEF (sizeof(struct ar5416_eeprom_def) / sizeof(u16))
+
+static bool __ath9k_hw_def_fill_eeprom(struct ath_hw *ah)
+{
struct ath_common *common = ath9k_hw_common(ah);
u16 *eep_data = (u16 *)&ah->eeprom.def;
int addr, ar5416_eep_start_loc = 0x100;
@@ -103,9 +104,34 @@ static bool ath9k_hw_def_fill_eeprom(struct ath_hw *ah)
eep_data++;
}
return true;
-#undef SIZE_EEPROM_DEF
}
+static bool __ath9k_hw_usb_def_fill_eeprom(struct ath_hw *ah)
+{
+ u16 *eep_data = (u16 *)&ah->eeprom.def;
+
+ ath9k_hw_usb_gen_fill_eeprom(ah, eep_data,
+ 0x100, SIZE_EEPROM_DEF);
+ return true;
+}
+
+static bool ath9k_hw_def_fill_eeprom(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (!ath9k_hw_use_flash(ah)) {
+ ath_dbg(common, ATH_DBG_EEPROM,
+ "Reading from EEPROM, not flash\n");
+ }
+
+ if (common->bus_ops->ath_bus_type == ATH_USB)
+ return __ath9k_hw_usb_def_fill_eeprom(ah);
+ else
+ return __ath9k_hw_def_fill_eeprom(ah);
+}
+
+#undef SIZE_EEPROM_DEF
+
static int ath9k_hw_def_check_eeprom(struct ath_hw *ah)
{
struct ar5416_eeprom_def *eep =
--
1.7.3.4
--
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