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author | Kyle McMartin <kyle@shortfin.cabal.ca> | 2007-12-06 09:32:15 -0800 |
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committer | Kyle McMartin <kyle@shortfin.cabal.ca> | 2007-12-06 09:32:15 -0800 |
commit | 721fdf34167580ff98263c74cead8871d76936e6 (patch) | |
tree | e3ab5c95cea22135d5205a8f2438a79222cd6ff2 /arch/parisc | |
parent | ac6aecbf0541ca277e6492fdf7c91e46e1fc4171 (diff) | |
download | linux-stable-721fdf34167580ff98263c74cead8871d76936e6.tar.gz linux-stable-721fdf34167580ff98263c74cead8871d76936e6.tar.bz2 linux-stable-721fdf34167580ff98263c74cead8871d76936e6.zip |
[PARISC] print more than one character at a time for pdc console
There's really no reason not to print more than one character at a
time to the PDC console... Booting is measurably speedier, and now I don't
have to watch individual characters get drawn.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Diffstat (limited to 'arch/parisc')
-rw-r--r-- | arch/parisc/kernel/firmware.c | 88 | ||||
-rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 11 |
2 files changed, 36 insertions, 63 deletions
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index fd6552c4c08c..4ab83d56974d 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -1082,76 +1082,56 @@ void pdc_io_reset_devices(void) /** - * pdc_iodc_putc - Console character print using IODC. - * @c: the character to output. + * pdc_iodc_print - Console print using IODC. + * @str: the string to output. + * @count: length of str * * Note that only these special chars are architected for console IODC io: * BEL, BS, CR, and LF. Others are passed through. * Since the HP console requires CR+LF to perform a 'newline', we translate * "\n" to "\r\n". */ -void pdc_iodc_putc(unsigned char c) +int pdc_iodc_print(unsigned char *str, unsigned count) { - /* XXX Should we spinlock posx usage */ - static int posx; /* for simple TAB-Simulation... */ - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; - unsigned int n; + /* XXX Should we spinlock posx usage */ + static int posx; /* for simple TAB-Simulation... */ + int __attribute__((aligned(8))) iodc_retbuf[32]; + char __attribute__((aligned(64))) iodc_dbuf[4096]; + unsigned int i; unsigned long flags; - switch (c) { - case '\n': - iodc_dbuf[0] = '\r'; - iodc_dbuf[1] = '\n'; - n = 2; - posx = 0; - break; - case '\t': - pdc_iodc_putc(' '); - while (posx & 7) /* expand TAB */ - pdc_iodc_putc(' '); - return; /* return since IODC can't handle this */ - case '\b': - posx-=2; /* BS */ - default: - iodc_dbuf[0] = c; - n = 1; - posx++; - break; - } + memset(iodc_dbuf, 0, 4096); + for (i = 0; i < count && i < 2048;) { + switch(str[i]) { + case '\n': + iodc_dbuf[i+0] = '\r'; + iodc_dbuf[i+1] = '\n'; + i += 2; + posx = 0; + break; + case '\t': + while (posx & 7) { + iodc_dbuf[i] = ' '; + i++, posx++; + } + break; + case '\b': /* BS */ + posx -= 2; + default: + iodc_dbuf[i] = str[i]; + i++, posx++; + break; + } + } spin_lock_irqsave(&pdc_lock, flags); real32_call(PAGE0->mem_cons.iodc_io, (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), - __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0); + __pa(iodc_retbuf), 0, __pa(iodc_dbuf), i, 0); spin_unlock_irqrestore(&pdc_lock, flags); -} -/** - * pdc_iodc_outc - Console character print using IODC (without conversions). - * @c: the character to output. - * - * Write the character directly to the IODC console. - */ -void pdc_iodc_outc(unsigned char c) -{ - unsigned int n; - unsigned long flags; - - /* fill buffer with one caracter and print it */ - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; - - n = 1; - iodc_dbuf[0] = c; - - spin_lock_irqsave(&pdc_lock, flags); - real32_call(PAGE0->mem_cons.iodc_io, - (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, - PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), - __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0); - spin_unlock_irqrestore(&pdc_lock, flags); + return i; } /** diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index aab05767427c..33b1f84441b1 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -55,13 +55,7 @@ static void pdc_console_write(struct console *co, const char *s, unsigned count) { - while(count--) - pdc_iodc_putc(*s++); -} - -void pdc_outc(unsigned char c) -{ - pdc_iodc_outc(c); + pdc_iodc_print(s, count); } void pdc_printf(const char *fmt, ...) @@ -74,8 +68,7 @@ void pdc_printf(const char *fmt, ...) len = vscnprintf(buf, sizeof(buf), fmt, args); va_end(args); - for (i = 0; i < len; i++) - pdc_iodc_outc(buf[i]); + pdc_iodc_print(buf, len); } int pdc_console_poll_key(struct console *co) |