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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/sparc/prom/console_64.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/sparc/prom/console_64.c')
-rw-r--r-- | arch/sparc/prom/console_64.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c new file mode 100644 index 00000000..f95edcc5 --- /dev/null +++ b/arch/sparc/prom/console_64.c @@ -0,0 +1,45 @@ +/* console.c: Routines that deal with sending and receiving IO + * to/from the current console device using the PROM. + * + * Copyright (C) 1995 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <asm/openprom.h> +#include <asm/oplib.h> +#include <linux/string.h> + +static int __prom_console_write_buf(const char *buf, int len) +{ + unsigned long args[7]; + int ret; + + args[0] = (unsigned long) "write"; + args[1] = 3; + args[2] = 1; + args[3] = (unsigned int) prom_stdout; + args[4] = (unsigned long) buf; + args[5] = (unsigned int) len; + args[6] = (unsigned long) -1; + + p1275_cmd_direct(args); + + ret = (int) args[6]; + if (ret < 0) + return -1; + return ret; +} + +void prom_console_write_buf(const char *buf, int len) +{ + while (len) { + int n = __prom_console_write_buf(buf, len); + if (n < 0) + continue; + len -= n; + buf += len; + } +} |