diff options
author | Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> | 2006-12-07 18:42:17 +0300 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2006-12-08 02:56:09 -0500 |
commit | 6ccedb10e39c34a4cb68f6c8dae67ecdd3e0b138 (patch) | |
tree | 803f7366f7235125e89d9d4537e4d943cb097e7a /drivers/acpi/ec.c | |
parent | 3261ff4db3a33ac7e1b9ed98e905663845cadbc6 (diff) |
ACPI: ec: Lindent once again
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
-rw-r--r-- | drivers/acpi/ec.c | 171 |
1 files changed, 76 insertions, 95 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index e05bb148754..d713f769b72 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -45,36 +45,33 @@ ACPI_MODULE_NAME("acpi_ec") #define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver" #define ACPI_EC_DEVICE_NAME "Embedded Controller" #define ACPI_EC_FILE_INFO "info" - #undef PREFIX #define PREFIX "ACPI: EC: " - /* EC status register */ #define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ #define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ #define ACPI_EC_FLAG_BURST 0x10 /* burst mode */ #define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */ - /* EC commands */ enum ec_command { - ACPI_EC_COMMAND_READ = 0x80, - ACPI_EC_COMMAND_WRITE = 0x81, - ACPI_EC_BURST_ENABLE = 0x82, - ACPI_EC_BURST_DISABLE = 0x83, - ACPI_EC_COMMAND_QUERY = 0x84, + ACPI_EC_COMMAND_READ = 0x80, + ACPI_EC_COMMAND_WRITE = 0x81, + ACPI_EC_BURST_ENABLE = 0x82, + ACPI_EC_BURST_DISABLE = 0x83, + ACPI_EC_COMMAND_QUERY = 0x84, }; /* EC events */ enum ec_event { ACPI_EC_EVENT_OBF_1 = 1, /* Output buffer full */ - ACPI_EC_EVENT_IBF_0, /* Input buffer empty */ + ACPI_EC_EVENT_IBF_0, /* Input buffer empty */ }; #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ static enum ec_mode { - EC_INTR = 1, /* Output buffer full */ - EC_POLL, /* Input buffer empty */ + EC_INTR = 1, /* Output buffer full */ + EC_POLL, /* Input buffer empty */ } acpi_ec_mode = EC_INTR; static int acpi_ec_remove(struct acpi_device *device, int type); @@ -167,7 +164,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event) } else { printk(KERN_ERR PREFIX "acpi_ec_wait timeout," " status = %d, expect_event = %d\n", - acpi_ec_read_status(ec), event); + acpi_ec_read_status(ec), event); } } @@ -184,7 +181,6 @@ int acpi_ec_enter_burst_mode(struct acpi_ec *ec) u8 tmp = 0; u8 status = 0; - status = acpi_ec_read_status(ec); if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) { status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); @@ -200,7 +196,7 @@ int acpi_ec_enter_burst_mode(struct acpi_ec *ec) atomic_set(&ec->leaving_burst, 0); return 0; - end: + end: ACPI_EXCEPTION((AE_INFO, status, "EC wait, burst mode")); return -1; } @@ -209,26 +205,25 @@ int acpi_ec_leave_burst_mode(struct acpi_ec *ec) { u8 status = 0; - status = acpi_ec_read_status(ec); - if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)){ + if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)) { status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); - if(status) + if (status) goto end; acpi_ec_write_cmd(ec, ACPI_EC_BURST_DISABLE); acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); } atomic_set(&ec->leaving_burst, 1); return 0; - end: + end: ACPI_EXCEPTION((AE_INFO, status, "EC leave burst mode")); return -1; } -#endif /* ACPI_FUTURE_USAGE */ +#endif /* ACPI_FUTURE_USAGE */ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, - const u8 *wdata, unsigned wdata_len, - u8 *rdata, unsigned rdata_len) + const u8 * wdata, unsigned wdata_len, + u8 * rdata, unsigned rdata_len) { int result = 0; @@ -237,8 +232,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, for (; wdata_len > 0; --wdata_len) { result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); if (result) { - printk(KERN_ERR PREFIX "write_cmd timeout, command = %d\n", - command); + printk(KERN_ERR PREFIX + "write_cmd timeout, command = %d\n", command); goto end; } acpi_ec_write_data(ec, *(wdata++)); @@ -247,8 +242,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, if (!rdata_len) { result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); if (result) { - printk(KERN_ERR PREFIX "finish-write timeout, command = %d\n", - command); + printk(KERN_ERR PREFIX + "finish-write timeout, command = %d\n", command); goto end; } } else if (command == ACPI_EC_COMMAND_QUERY) { @@ -259,7 +254,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1); if (result) { printk(KERN_ERR PREFIX "read timeout, command = %d\n", - command); + command); goto end; } @@ -270,8 +265,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, } static int acpi_ec_transaction(struct acpi_ec *ec, u8 command, - const u8 *wdata, unsigned wdata_len, - u8 *rdata, unsigned rdata_len) + const u8 * wdata, unsigned wdata_len, + u8 * rdata, unsigned rdata_len) { int status; u32 glk; @@ -279,8 +274,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command, if (!ec || (wdata_len && !wdata) || (rdata_len && !rdata)) return -EINVAL; - if (rdata) - memset(rdata, 0, rdata_len); + if (rdata) + memset(rdata, 0, rdata_len); mutex_lock(&ec->lock); if (ec->global_lock) { @@ -294,15 +289,16 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command, status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0); if (status) { - printk(KERN_DEBUG PREFIX "read EC, IB not empty\n"); + printk(KERN_DEBUG PREFIX + "input buffer is not empty, aborting transaction\n"); goto end; } - status = acpi_ec_transaction_unlocked(ec, command, - wdata, wdata_len, - rdata, rdata_len); + status = acpi_ec_transaction_unlocked(ec, command, + wdata, wdata_len, + rdata, rdata_len); -end: + end: if (ec->global_lock) acpi_release_global_lock(glk); @@ -311,7 +307,7 @@ end: return status; } -static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data) +static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data) { int result; u8 d; @@ -324,15 +320,15 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data) static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data) { - u8 wdata[2] = { address, data }; - return acpi_ec_transaction(ec, ACPI_EC_COMMAND_WRITE, + u8 wdata[2] = { address, data }; + return acpi_ec_transaction(ec, ACPI_EC_COMMAND_WRITE, wdata, 2, NULL, 0); } /* * Externally callable EC access functions. For now, assume 1 EC only */ -int ec_read(u8 addr, u8 *val) +int ec_read(u8 addr, u8 * val) { struct acpi_ec *ec; int err; @@ -372,8 +368,8 @@ int ec_write(u8 addr, u8 val) EXPORT_SYMBOL(ec_write); extern int ec_transaction(u8 command, - const u8 *wdata, unsigned wdata_len, - u8 *rdata, unsigned rdata_len) + const u8 * wdata, unsigned wdata_len, + u8 * rdata, unsigned rdata_len) { struct acpi_ec *ec; @@ -388,29 +384,29 @@ extern int ec_transaction(u8 command, EXPORT_SYMBOL(ec_transaction); -static int acpi_ec_query(struct acpi_ec *ec, u8 *data) +static int acpi_ec_query(struct acpi_ec *ec, u8 * data) { int result; - u8 d; + u8 d; - if (!ec || !data) - return -EINVAL; + if (!ec || !data) + return -EINVAL; - /* - * Query the EC to find out which _Qxx method we need to evaluate. - * Note that successful completion of the query causes the ACPI_EC_SCI - * bit to be cleared (and thus clearing the interrupt source). - */ + /* + * Query the EC to find out which _Qxx method we need to evaluate. + * Note that successful completion of the query causes the ACPI_EC_SCI + * bit to be cleared (and thus clearing the interrupt source). + */ - result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1); - if (result) - return result; + result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1); + if (result) + return result; - if (!d) - return -ENODATA; + if (!d) + return -ENODATA; - *data = d; - return 0; + *data = d; + return 0; } /* -------------------------------------------------------------------------- @@ -439,7 +435,6 @@ static u32 acpi_ec_gpe_handler(void *data) u8 value; struct acpi_ec *ec = (struct acpi_ec *)data; - if (acpi_ec_mode == EC_INTR) { wake_up(&ec->wait); } @@ -447,7 +442,9 @@ static u32 acpi_ec_gpe_handler(void *data) value = acpi_ec_read_status(ec); if ((value & ACPI_EC_FLAG_SCI) && !atomic_read(&ec->query_pending)) { atomic_set(&ec->query_pending, 1); - status = acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query, ec); + status = + acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query, + ec); } return status == AE_OK ? @@ -485,7 +482,6 @@ acpi_ec_space_handler(u32 function, acpi_integer f_v = 0; int i = 0; - if ((address > 0xFF) || !value || !handler_context) return AE_BAD_PARAMETER; @@ -499,7 +495,7 @@ acpi_ec_space_handler(u32 function, switch (function) { case ACPI_READ: temp = 0; - result = acpi_ec_read(ec, (u8) address, (u8 *) &temp); + result = acpi_ec_read(ec, (u8) address, (u8 *) & temp); break; case ACPI_WRITE: result = acpi_ec_write(ec, (u8) address, (u8) temp); @@ -552,15 +548,12 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset) { struct acpi_ec *ec = (struct acpi_ec *)seq->private; - if (!ec) goto end; - seq_printf(seq, "gpe: 0x%02x\n", - (u32) ec->gpe); + seq_printf(seq, "gpe: 0x%02x\n", (u32) ec->gpe); seq_printf(seq, "ports: 0x%02x, 0x%02x\n", - (u32) ec->command_addr, - (u32) ec->data_addr); + (u32) ec->command_addr, (u32) ec->data_addr); seq_printf(seq, "use global lock: %s\n", ec->global_lock ? "yes" : "no"); acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR); @@ -586,7 +579,6 @@ static int acpi_ec_add_fs(struct acpi_device *device) { struct proc_dir_entry *entry = NULL; - if (!acpi_device_dir(device)) { acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), acpi_ec_dir); @@ -629,7 +621,6 @@ static int acpi_ec_add(struct acpi_device *device) acpi_status status = AE_OK; struct acpi_ec *ec = NULL; - if (!device) return -EINVAL; @@ -651,8 +642,7 @@ static int acpi_ec_add(struct acpi_device *device) acpi_driver_data(device) = ec; /* Use the global lock for all EC transactions? */ - acpi_evaluate_integer(ec->handle, "_GLK", NULL, - &ec->global_lock); + acpi_evaluate_integer(ec->handle, "_GLK", NULL, &ec->global_lock); /* XXX we don't test uids, because on some boxes ecdt uid = 0, see: http://bugzilla.kernel.org/show_bug.cgi?id=6111 */ @@ -669,11 +659,10 @@ static int acpi_ec_add(struct acpi_device *device) /* Get GPE bit assignment (EC events). */ /* TODO: Add support for _GPE returning a package */ - status = - acpi_evaluate_integer(ec->handle, "_GPE", NULL, - &ec->gpe); + status = acpi_evaluate_integer(ec->handle, "_GPE", NULL, &ec->gpe); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Obtaining GPE bit assignment")); + ACPI_EXCEPTION((AE_INFO, status, + "Obtaining GPE bit assignment")); result = -ENODEV; goto end; } @@ -683,13 +672,13 @@ static int acpi_ec_add(struct acpi_device *device) goto end; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s [%s] (gpe %d) interrupt mode.", - acpi_device_name(device), acpi_device_bid(device), - (u32) ec->gpe)); + acpi_device_name(device), acpi_device_bid(device), + (u32) ec->gpe)); if (!first_ec) first_ec = device; - end: + end: if (result) kfree(ec); @@ -700,7 +689,6 @@ static int acpi_ec_remove(struct acpi_device *device, int type) { struct acpi_ec *ec = NULL; - if (!device) return -EINVAL; @@ -743,7 +731,6 @@ static int acpi_ec_start(struct acpi_device *device) acpi_status status = AE_OK; struct acpi_ec *ec = NULL; - if (!device) return -EINVAL; @@ -783,8 +770,7 @@ static int acpi_ec_start(struct acpi_device *device) &acpi_ec_space_handler, &acpi_ec_space_setup, ec); if (ACPI_FAILURE(status)) { - acpi_remove_gpe_handler(NULL, ec->gpe, - &acpi_ec_gpe_handler); + acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); return -ENODEV; } @@ -796,7 +782,6 @@ static int acpi_ec_stop(struct acpi_device *device, int type) acpi_status status = AE_OK; struct acpi_ec *ec = NULL; - if (!device) return -EINVAL; @@ -808,9 +793,7 @@ static int acpi_ec_stop(struct acpi_device *device, int type) if (ACPI_FAILURE(status)) return -ENODEV; - status = - acpi_remove_gpe_handler(NULL, ec->gpe, - &acpi_ec_gpe_handler); + status = acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); if (ACPI_FAILURE(status)) return -ENODEV; @@ -835,16 +818,15 @@ acpi_fake_ecdt_callback(acpi_handle handle, ec_ecdt->uid = -1; acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->uid); - status = - acpi_evaluate_integer(handle, "_GPE", NULL, - &ec_ecdt->gpe); + status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->gpe); if (ACPI_FAILURE(status)) return status; ec_ecdt->global_lock = TRUE; ec_ecdt->handle = handle; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "GPE=0x%02lx, ports=0x%2lx, 0x%2lx", - ec_ecdt->gpe, ec_ecdt->command_addr, ec_ecdt->data_addr)); + ec_ecdt->gpe, ec_ecdt->command_addr, + ec_ecdt->data_addr)); return AE_CTRL_TERMINATE; } @@ -883,7 +865,7 @@ static int __init acpi_ec_fake_ecdt(void) goto error; } return 0; - error: + error: return ret; } @@ -919,14 +901,13 @@ static int __init acpi_ec_get_real_ecdt(void) ec_ecdt->global_lock = TRUE; ec_ecdt->uid = ecdt_ptr->uid; - status = - acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->handle); + status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->handle); if (ACPI_FAILURE(status)) { goto error; } return 0; - error: + error: ACPI_EXCEPTION((AE_INFO, status, "Could not use ECDT")); kfree(ec_ecdt); ec_ecdt = NULL; @@ -986,7 +967,6 @@ static int __init acpi_ec_init(void) { int result = 0; - if (acpi_disabled) return 0; @@ -1039,7 +1019,8 @@ static int __init acpi_ec_set_intr_mode(char *str) acpi_ec_mode = EC_POLL; } acpi_ec_driver.ops.add = acpi_ec_add; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "EC %s mode.\n", intr ? "interrupt" : "polling")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "EC %s mode.\n", + intr ? "interrupt" : "polling")); return 1; } |