b43: Add firmware markers support

This adds support for firmware markers.
With firmware markers it's easily possible to check whether the
firmware runs some codepath or not. The driver will throw a message
when the firmware executes a MARKER(x).

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

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f0041750355d..e919189919bb 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -428,8 +428,13 @@ enum {
 #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_MARKER             3       /* A "marker" was thrown by the firmware. */
 #define B43_DEBUGIRQ_ACK                0xFFFF  /* The host writes that to ACK the IRQ */
 
+/* The firmware register that contains the "marker" line. */
+#define B43_MARKER_ID_REG               2
+#define B43_MARKER_LINE_REG             3
+
 /* The firmware register to fetch the panic reason from. */
 #define B43_FWPANIC_REASON_REG          3
 /* Firmware panic reason codes */