diff options
| author | Michael Buesch <mb@bu3sch.de> | 2008-05-20 00:24:36 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-05-21 21:48:17 -0400 |
| commit | 53c068566dde708cb28a4dfc06ae3d7fd7434397 (patch) | |
| tree | a724356bc3f1b00eb352d6055816901607038944 /drivers | |
| parent | afa83e239af58a93eddd10a7a43ac5618884db15 (diff) | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 13 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index f0041750355..e919189919b 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 */ diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index e1dfb407467..cbb317bb348 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -1689,7 +1689,7 @@ static void b43_handle_firmware_panic(struct b43_wldev *dev) static void handle_irq_ucode_debug(struct b43_wldev *dev) { unsigned int i, cnt; - u16 reason; + u16 reason, marker_id, marker_line; __le16 *buf; /* The proprietary firmware doesn't have this IRQ. */ @@ -1737,6 +1737,17 @@ static void handle_irq_ucode_debug(struct b43_wldev *dev) } printk("\n"); break; + case B43_DEBUGIRQ_MARKER: + if (!B43_DEBUG) + break; /* Only with driver debugging enabled. */ + marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, + B43_MARKER_ID_REG); + marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, + B43_MARKER_LINE_REG); + b43info(dev->wl, "The firmware just executed the MARKER(%u) " + "at line number %u\n", + marker_id, marker_line); + break; default: b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", reason); |