ath_info: add support to read (-R ADDR) and write (-W ADDR VALUE) registers

Reference: madwifi-trace@3398

git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@3425 0192ed92-7a03-0410-a25b-9323aeb14dbd

diff --git a/tools/ath_info.c b/tools/ath_info.c
index 6917fe55a4b37e9b678a362e86c80547f44dbcf3..3fcc0c49a6e24603a4d753f8b76d0c7eaa2b5699 100644 (file)
--- a/tools/ath_info.c
+++ b/tools/ath_info.c
@@ -710,7 +710,7 @@ static void usage(const char *n)
 {
        int i;
 
-       fprintf(stderr, "%s [-w [-g N:M]] [-v] [-f] [-d] <base_address> "
+       fprintf(stderr, "%s [-w [-g N:M]] [-v] [-f] [-d] [-R addr] [-W addr val] <base_address> "
                "[<name1> <val1> [<name2> <val2> ...]]\n\n", n);
        fprintf(stderr,
                "-w      write values into EEPROM\n"
@@ -718,6 +718,8 @@ static void usage(const char *n)
                "-v      verbose output\n"
                "-f      force; suppress question before writing\n"
                "-d      dump eeprom (file 'ath-eeprom-dump.bin' and screen)\n"
+               "-R <addr>       read register at <addr> (hex)\n"
+               "-W <addr> <val> write <val> (hex) into register at <addr> (hex)\n"
                "<base_address>  device base address (see lspci output)\n\n");
 
        fprintf(stderr,
@@ -968,6 +970,9 @@ int main(int argc, char *argv[])
        int timer_count = 1;
        int do_keycache_dump = 0;
        int keycache_copy_idx = 0;
+       int reg_read = 0;
+       int reg_write = 0;
+       unsigned int reg_write_val = 0;
 
        struct {
                int valid;
@@ -1030,6 +1035,17 @@ int main(int argc, char *argv[])
                        keycache_copy_idx = atoi(argv[++anr]);
                        break;
 
+               case 'R':
+                       anr++;
+                       reg_read = strtoul(argv[anr], NULL, 16);
+                       break;
+
+               case 'W':
+                       anr++;
+                       reg_write = strtoul(argv[anr++], NULL, 16);
+                       reg_write_val = strtoul(argv[anr], NULL, 16);
+                       break;
+
                case 'h':
                        usage(argv[0]);
                        return 0;
@@ -1089,6 +1105,17 @@ int main(int argc, char *argv[])
        AR5K_REG_DISABLE_BITS(AR5K_PCICFG, AR5K_PCICFG_SPWR_DN);
        usleep(500);
 
+       if (reg_read) {
+               printf("READ %04x = %08x\n", reg_read, AR5K_REG_READ(reg_read));
+               return 0;
+       }
+
+       if (reg_write) {
+               printf("WRITE %04x = %08x\n", reg_write, reg_write_val);
+               AR5K_REG_WRITE(reg_write, reg_write_val);
+               return 0;
+       }
+
        srev = AR5K_REG_READ(AR5K_SREV);
        mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER) << 4;