diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/pc80/mc146818rtc.c | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/src/drivers/pc80/mc146818rtc.c b/src/drivers/pc80/mc146818rtc.c index 79aba27fbd..bd94bd29ff 100644 --- a/src/drivers/pc80/mc146818rtc.c +++ b/src/drivers/pc80/mc146818rtc.c @@ -151,9 +151,10 @@ void rtc_init(int invalid) length = number of bits to include in the value ret = a character pointer to where the value is to be returned output the value placed in ret - returns 0 = successful, -1 = an error occurred + returns CB_SUCCESS = successful, cb_err code if an error occurred */ -static int get_cmos_value(unsigned long bit, unsigned long length, void *vret) +static enum cb_err get_cmos_value(unsigned long bit, unsigned long length, + void *vret) { unsigned char *ret; unsigned long byte,byte_bit; @@ -177,10 +178,10 @@ static int get_cmos_value(unsigned long bit, unsigned long length, void *vret) ret[i]=cmos_read(byte); } } - return 0; + return CB_SUCCESS; } -int get_option(void *dest, const char *name) +enum cb_err get_option(void *dest, const char *name) { struct cmos_option_table *ct; struct cmos_entries *ce; @@ -196,7 +197,7 @@ int get_option(void *dest, const char *name) if (!ct) { printk(BIOS_ERR, "RTC: cmos_layout.bin could not be found. " "Options are disabled\n"); - return(-2); + return CB_CMOS_LAYOUT_NOT_FOUND; } ce=(struct cmos_entries*)((unsigned char *)ct + ct->header_length); for(;ce->tag==LB_TAG_OPTION; @@ -208,18 +209,18 @@ int get_option(void *dest, const char *name) } if(!found) { printk(BIOS_DEBUG, "WARNING: No CMOS option '%s'.\n", name); - return(-2); + return CB_CMOS_OPTION_NOT_FOUND; } - if(get_cmos_value(ce->bit, ce->length, dest)) - return(-3); - if(!rtc_checksum_valid(LB_CKS_RANGE_START, - LB_CKS_RANGE_END,LB_CKS_LOC)) - return(-4); - return(0); + if(get_cmos_value(ce->bit, ce->length, dest) != CB_SUCCESS) + return CB_CMOS_ACCESS_ERROR; + if(!rtc_checksum_valid(LB_CKS_RANGE_START, LB_CKS_RANGE_END,LB_CKS_LOC)) + return CB_CMOS_CHECKSUM_INVALID; + return CB_SUCCESS; } -static int set_cmos_value(unsigned long bit, unsigned long length, void *vret) +static enum cb_err set_cmos_value(unsigned long bit, unsigned long length, + void *vret) { unsigned char *ret; unsigned long byte,byte_bit; @@ -242,7 +243,7 @@ static int set_cmos_value(unsigned long bit, unsigned long length, void *vret) chksum_update_needed = 1; } else { /* more that one byte so transfer the whole bytes */ if (byte_bit || length % 8) - return -1; + return CB_ERR_ARG; for(i=0; length; i++, length-=8, byte++) cmos_write(ret[i], byte); @@ -254,11 +255,11 @@ static int set_cmos_value(unsigned long bit, unsigned long length, void *vret) rtc_set_checksum(LB_CKS_RANGE_START, LB_CKS_RANGE_END,LB_CKS_LOC); } - return 0; + return CB_SUCCESS; } -int set_option(const char *name, void *value) +enum cb_err set_option(const char *name, void *value) { struct cmos_option_table *ct; struct cmos_entries *ce; @@ -274,7 +275,7 @@ int set_option(const char *name, void *value) CBFS_COMPONENT_CMOS_LAYOUT); if (!ct) { printk(BIOS_ERR, "cmos_layout.bin could not be found. Options are disabled\n"); - return(-2); + return CB_CMOS_LAYOUT_NOT_FOUND; } ce=(struct cmos_entries*)((unsigned char *)ct + ct->header_length); for(;ce->tag==LB_TAG_OPTION; @@ -286,21 +287,22 @@ int set_option(const char *name, void *value) } if(!found) { printk(BIOS_DEBUG, "WARNING: No CMOS option '%s'.\n", name); - return(-2); + return CB_CMOS_OPTION_NOT_FOUND; } length = ce->length; if (ce->config == 's') { length = MAX(strlen((const char *)value) * 8, ce->length - 8); /* make sure the string is null terminated */ - if ((set_cmos_value(ce->bit + ce->length - 8, 8, &(u8[]){0}))) - return (-3); + if (set_cmos_value(ce->bit + ce->length - 8, 8, &(u8[]){0}) + != CB_SUCCESS) + return (CB_CMOS_ACCESS_ERROR); } - if ((set_cmos_value(ce->bit, length, value))) - return (-3); + if (set_cmos_value(ce->bit, length, value) != CB_SUCCESS) + return (CB_CMOS_ACCESS_ERROR); - return 0; + return CB_SUCCESS; } #endif /* CONFIG_USE_OPTION_TABLE */ |