[PATCH] bcm43xx: Add firmware version printout

This patch prints microcode revision, patchlevel, date and time to
KERN_INFO. Also, version 4.xx microcodes (rev>0x128) will be rejected
by the driver, because they still do not work.

Signed-off-by: Martin Langer <martin-langer@gmx.de>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 33 insertions, 0 deletions

diff --git a/drivers/net/wireless/bcm43xx/bcm43xx.h b/drivers/net/wireless/bcm43xx/bcm43xx.h
index 62fd7e237789..e7d802157803 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx.h
@@ -306,6 +306,12 @@
 #define BCM43xx_SBF_TIME_UPDATE         0x10000000
 #define BCM43xx_SBF_80000000            0x80000000 /*FIXME: fix name*/
 
+/* Microcode */
+#define BCM43xx_UCODE_REVISION          0x0000
+#define BCM43xx_UCODE_PATCHLEVEL        0x0002
+#define BCM43xx_UCODE_DATE              0x0004
+#define BCM43xx_UCODE_TIME              0x0006
+
 /* MicrocodeFlagsBitfield (addr + lo-word values?)*/
 #define BCM43xx_UCODEFLAGS_OFFSET       0x005E
 
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index c19bd866147e..cb9a3ae8463a 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -2384,6 +2384,33 @@ static int bcm43xx_chip_init(struct bcm43xx_private *bcm)
         }
         bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
 
+        value16 = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                     BCM43xx_UCODE_REVISION);
+
+        dprintk(KERN_INFO PFX "Microcode rev 0x%x, pl 0x%x "
+                "(20%.2i-%.2i-%.2i  %.2i:%.2i:%.2i)\n", value16,
+                bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                   BCM43xx_UCODE_PATCHLEVEL),
+                (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                    BCM43xx_UCODE_DATE) >> 12) & 0xf,
+                (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                    BCM43xx_UCODE_DATE) >> 8) & 0xf,
+                bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                   BCM43xx_UCODE_DATE) & 0xff,
+                (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                   BCM43xx_UCODE_TIME) >> 11) & 0x1f,
+                (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                   BCM43xx_UCODE_TIME) >> 5) & 0x3f,
+                bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
+                                   BCM43xx_UCODE_TIME) & 0x1f);
+
+        if ( value16 > 0x128 ) {
+                dprintk(KERN_ERR PFX
+                        "Firmware: no support for microcode rev > 0x128\n");
+                err = -1;
+                goto err_release_fw;
+        }
+
         err = bcm43xx_gpio_init(bcm);
         if (err)
                 goto err_release_fw;