Author: adrian
Date: Wed Apr 9 03:51:05 2014
New Revision: 264292
URL: http://svnweb.freebsd.org/changeset/base/264292
Log:
Add a function to check whether the given register can be accessed whilst
the chip is asleep.
It's AR5416 and later specific; I'll add a HAL method to generalise it
later.
Tested:
* AR5416, STA mode
Modified:
head/sys/dev/ath/ah_osdep.c
Modified: head/sys/dev/ath/ah_osdep.c
==============================================================================
--- head/sys/dev/ath/ah_osdep.c Wed Apr 9 03:46:04 2014 (r264291)
+++ head/sys/dev/ath/ah_osdep.c Wed Apr 9 03:51:05 2014 (r264292)
@@ -138,6 +138,24 @@ ath_hal_ether_sprintf(const u_int8_t *ma
#ifdef AH_DEBUG
+/*
+ * XXX This is highly relevant only for the AR5416 and later
+ * PCI/PCIe NICs. It'll need adjustment for other hardware
+ * variations.
+ */
+static int
+ath_hal_reg_whilst_asleep(struct ath_hal *ah, uint32_t reg)
+{
+
+ if (reg >= 0x4000 && reg < 0x5000)
+ return (1);
+ if (reg >= 0x6000 && reg < 0x7000)
+ return (1);
+ if (reg >= 0x7000 && reg < 0x8000)
+ return (1);
+ return (0);
+}
+
void
DO_HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
{
@@ -254,7 +272,8 @@ ath_hal_reg_write(struct ath_hal *ah, u_
bus_space_handle_t h = ah->ah_sh;
/* Debug - complain if we haven't fully waken things up */
- if (ah->ah_powerMode != HAL_PM_AWAKE) {
+ if (! ath_hal_reg_whilst_asleep(ah, reg) &&
+ ah->ah_powerMode != HAL_PM_AWAKE) {
ath_hal_printf(ah, "%s: reg=0x%08x, val=0x%08x, pm=%d\n",
__func__, reg, val, ah->ah_powerMode);
}
@@ -285,7 +304,8 @@ ath_hal_reg_read(struct ath_hal *ah, u_i
u_int32_t val;
/* Debug - complain if we haven't fully waken things up */
- if (ah->ah_powerMode != HAL_PM_AWAKE) {
+ if (! ath_hal_reg_whilst_asleep(ah, reg) &&
+ ah->ah_powerMode != HAL_PM_AWAKE) {
ath_hal_printf(ah, "%s: reg=0x%08x, pm=%d\n",
__func__, reg, ah->ah_powerMode);
}
@@ -343,7 +363,8 @@ ath_hal_reg_write(struct ath_hal *ah, u_
bus_space_handle_t h = ah->ah_sh;
/* Debug - complain if we haven't fully waken things up */
- if (ah->ah_powerMode != HAL_PM_AWAKE) {
+ if (! ath_hal_reg_whilst_asleep(ah, reg) &&
+ ah->ah_powerMode != HAL_PM_AWAKE) {
ath_hal_printf(ah, "%s: reg=0x%08x, val=0x%08x, pm=%d\n",
__func__, reg, val, ah->ah_powerMode);
}
@@ -363,7 +384,8 @@ ath_hal_reg_read(struct ath_hal *ah, u_i
u_int32_t val;
/* Debug - complain if we haven't fully waken things up */
- if (ah->ah_powerMode != HAL_PM_AWAKE) {
+ if (! ath_hal_reg_whilst_asleep(ah, reg) &&
+ ah->ah_powerMode != HAL_PM_AWAKE) {
ath_hal_printf(ah, "%s: reg=0x%08x, pm=%d\n",
__func__, reg, ah->ah_powerMode);
}
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