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// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/console.h>
#include <asm/sibyte/board.h>
#include <asm/fw/cfe/cfe_api.h>
#include <asm/fw/cfe/cfe_error.h>
extern int cfe_cons_handle;
static void cfe_console_write(struct console *cons, const char *str,
unsigned int count)
{
int i, last, written;
for (i=0, last=0; i<count; i++) {
if (!str[i])
/* XXXKW can/should this ever happen? */
return;
if (str[i] == '\n') {
do {
written = cfe_write(cfe_cons_handle, &str[last], i-last);
if (written < 0)
;
last += written;
} while (last < i);
while (cfe_write(cfe_cons_handle, "\r", 1) <= 0)
;
}
}
if (last != count) {
do {
written = cfe_write(cfe_cons_handle, &str[last], count-last);
if (written < 0)
;
last += written;
} while (last < count);
}
}
static int cfe_console_setup(struct console *cons, char *str)
{
char consdev[32];
/* XXXKW think about interaction with 'console=' cmdline arg */
/* If none of the console options are configured, the build will break. */
if (cfe_getenv("BOOT_CONSOLE", consdev, 32) >= 0) {
#ifdef CONFIG_SERIAL_SB1250_DUART
if (!strcmp(consdev, "uart0")) {
setleds("u0cn");
} else if (!strcmp(consdev, "uart1")) {
setleds("u1cn");
} else
#endif
#ifdef CONFIG_VGA_CONSOLE
if (!strcmp(consdev, "pcconsole0")) {
setleds("pccn");
} else
#endif
return -ENODEV;
}
return 0;
}
static struct console sb1250_cfe_cons = {
.name = "cfe",
.write = cfe_console_write,
.setup = cfe_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
};
static int __init sb1250_cfe_console_init(void)
{
register_console(&sb1250_cfe_cons);
return 0;
}
console_initcall(sb1250_cfe_console_init);
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