b43: Add panic reason code that doesn't trigger restart

Add a firmware panic reason code that doesn't trigger a restart.
This is useful for firmware debugging and avoiding endless
restart loops. We can use FWPANIC_DIE to halt the firmware at a
well defined point.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f588dfa9c1d4..f0041750355d 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -422,12 +422,21 @@ enum {
                                          B43_IRQ_RFKILL | \
                                          B43_IRQ_TX_OK)
 
+/* The firmware register to fetch the debug-IRQ reason from. */
+#define B43_DEBUGIRQ_REASON_REG         63
 /* Debug-IRQ reasons. */
 #define B43_DEBUGIRQ_PANIC              0       /* The firmware panic'ed */
 #define B43_DEBUGIRQ_DUMP_SHM           1       /* Dump shared SHM */
 #define B43_DEBUGIRQ_DUMP_REGS          2       /* Dump the microcode registers */
 #define B43_DEBUGIRQ_ACK                0xFFFF  /* The host writes that to ACK the IRQ */
 
+/* The firmware register to fetch the panic reason from. */
+#define B43_FWPANIC_REASON_REG          3
+/* Firmware panic reason codes */
+#define B43_FWPANIC_DIE                 0 /* Firmware died. Don't auto-restart it. */
+#define B43_FWPANIC_RESTART             1 /* Firmware died. Schedule a controller reset. */
+
+
 /* Device specific rate values.
  * The actual values defined here are (rate_in_mbps * 2).
  * Some code depends on this. Don't change it. */