ar9170: interpret firmware debug commands

This adds new commands that the original firmware will not send
but we can use them to debug firmware.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index b104d7efd676..de57aa92a284 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -442,6 +442,38 @@ void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
                 /* retransmission issue / SIFS/EIFS collision ?! */
                 break;
 
+        /* firmware debug */
+        case 0xca:
+                printk(KERN_DEBUG "ar9170 FW: %.*s\n", len - 4, (char *)buf + 4);
+                break;
+        case 0xcb:
+                len -= 4;
+
+                switch (len) {
+                case 1:
+                        printk(KERN_DEBUG "ar9170 FW: u8: %#.2x\n",
+                                *((char *)buf + 4));
+                        break;
+                case 2:
+                        printk(KERN_DEBUG "ar9170 FW: u8: %#.4x\n",
+                                le16_to_cpup((__le16 *)((char *)buf + 4)));
+                        break;
+                case 4:
+                        printk(KERN_DEBUG "ar9170 FW: u8: %#.8x\n",
+                                le32_to_cpup((__le32 *)((char *)buf + 4)));
+                        break;
+                case 8:
+                        printk(KERN_DEBUG "ar9170 FW: u8: %#.16lx\n",
+                                (unsigned long)le64_to_cpup(
+                                                (__le64 *)((char *)buf + 4)));
+                        break;
+                }
+                break;
+        case 0xcc:
+                print_hex_dump_bytes("ar9170 FW:", DUMP_PREFIX_NONE,
+                                     (char *)buf + 4, len - 4);
+                break;
+
         default:
                 printk(KERN_INFO "received unhandled event %x\n", cmd->type);
                 print_hex_dump_bytes("dump:", DUMP_PREFIX_NONE, buf, len);