diff options
| -rw-r--r-- | drivers/acpi/ec.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index b15a431301a..fcf667c3961 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -164,6 +164,27 @@ static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) outb(data, ec->data_addr); } +#ifdef DEBUG +static const char *acpi_ec_cmd_string(u8 cmd) +{ + switch (cmd) { + case 0x80: + return "RD_EC"; + case 0x81: + return "WR_EC"; + case 0x82: + return "BE_EC"; + case 0x83: + return "BD_EC"; + case 0x84: + return "QR_EC"; + } + return "UNKNOWN"; +} +#else +#define acpi_ec_cmd_string(cmd) "UNDEF" +#endif + static int ec_transaction_completed(struct acpi_ec *ec) { unsigned long flags; @@ -199,7 +220,8 @@ static bool advance_transaction(struct acpi_ec *ec) if (t->rlen == t->ri) { t->flags |= ACPI_EC_COMMAND_COMPLETE; if (t->command == ACPI_EC_COMMAND_QUERY) - pr_debug("hardware QR_EC completion\n"); + pr_debug("***** Command(%s) hardware completion *****\n", + acpi_ec_cmd_string(t->command)); wakeup = true; } } else @@ -222,7 +244,8 @@ static bool advance_transaction(struct acpi_ec *ec) t->flags |= ACPI_EC_COMMAND_POLL; t->rdata[t->ri++] = 0x00; t->flags |= ACPI_EC_COMMAND_COMPLETE; - pr_debug("software QR_EC completion\n"); + pr_debug("***** Command(%s) software completion *****\n", + acpi_ec_cmd_string(t->command)); wakeup = true; } else if ((status & ACPI_EC_FLAG_IBF) == 0) { acpi_ec_write_cmd(ec, t->command); @@ -303,15 +326,16 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, spin_lock_irqsave(&ec->lock, tmp); /* following two actions should be kept atomic */ ec->curr = t; - pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n", - t->command, t->wdata ? t->wdata[0] : 0); + pr_debug("***** Command(%s) started *****\n", + acpi_ec_cmd_string(t->command)); start_transaction(ec); spin_unlock_irqrestore(&ec->lock, tmp); ret = ec_poll(ec); spin_lock_irqsave(&ec->lock, tmp); if (ec->curr->command == ACPI_EC_COMMAND_QUERY) clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - pr_debug("transaction end\n"); + pr_debug("***** Command(%s) stopped *****\n", + acpi_ec_cmd_string(t->command)); ec->curr = NULL; spin_unlock_irqrestore(&ec->lock, tmp); return ret; |