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blueswirl's latest console-nographic.diff.bz2

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git-svn-id: svn://coreboot.org/openbios/openbios-devel@71 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Stefan Reinauer
2006-07-23 14:29:29 +00:00
parent cc29864b60
commit 0726cb7dd7
10 changed files with 273 additions and 86 deletions
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187
drivers/obio.c
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@@ -25,6 +25,17 @@
path, name##_m, sizeof(name##_m)/sizeof(method_t)); \
} while(0)
#define REGISTER_NODE_METHODS( name, path ) do { \
const char *paths[1]; \
\
paths[0] = path; \
bind_node( name##_flags_, name##_size_, \
paths, 1, name##_m, sizeof(name##_m)/sizeof(method_t)); \
} while(0)
#define PROMDEV_KBD 0 /* input from keyboard */
#define PROMDEV_SCREEN 0 /* output to screen */
#define PROMDEV_TTYA 1 /* in/out to ttya */
/* DECLARE data structures for the nodes. */
DECLARE_UNNAMED_NODE( ob_obio, INSTALL_OPEN, sizeof(int) );
@@ -88,10 +99,145 @@ ob_intr(int intr)
fword("property");
}
// XXX move all arch/sparc32/console.c stuff here
#define CTRL(addr) (*(char *)(addr))
#define DATA(addr) (*(char *)(addr + 2))
/* Read Register 0 */
#define Rx_CH_AV 0x1 /* Rx Character Available */
#define Tx_BUF_EMP 0x4 /* Tx Buffer empty */
static int uart_charav(int port)
{
return (CTRL(port) & Rx_CH_AV) != 0;
}
static char uart_getchar(int port)
{
while (!uart_charav(port));
return DATA(port) & 0177;
}
static void uart_putchar(int port, unsigned char c)
{
if (c == '\n')
uart_putchar(port, '\r');
while (!(CTRL(port) & Tx_BUF_EMP));
DATA(port) = c;
}
/* ( addr len -- actual ) */
static void
zs_read(unsigned long *address)
{
char *addr;
int len;
len = POP();
addr = (char *)POP();
if (len != 1)
printk("zs_read: bad len, addr %x len %x\n", (unsigned int)addr, len);
if (uart_charav(*address)) {
*addr = (char)uart_getchar(*address);
PUSH(1);
} else {
PUSH(0);
}
}
int keyboard_dataready(void);
unsigned char keyboard_readdata(void);
/* ( addr len -- actual ) */
static void
zs_read_keyboard(unsigned long *address)
{
unsigned char *addr;
int len;
len = POP();
addr = (unsigned char *)POP();
if (len != 1)
printk("zs_read: bad len, addr %x len %x\n", (unsigned int)addr, len);
if (keyboard_dataready()) {
*addr = keyboard_readdata();
PUSH(1);
} else {
PUSH(0);
}
}
/* ( addr len -- actual ) */
static void
zs_write(unsigned long *address)
{
unsigned char *addr;
int i, len;
len = POP();
addr = (unsigned char *)POP();
for (i = 0; i < len; i++) {
uart_putchar(*address, addr[i]);
}
PUSH(len);
}
static void
zs_close(void)
{
}
static void
zs_open(unsigned long *address)
{
int len;
phandle_t ph;
unsigned long *prop;
char *args;
fword("my-self");
fword("ihandle>phandle");
ph = (phandle_t)POP();
prop = (unsigned long *)get_property(ph, "address", &len);
*address = *prop;
fword("my-args");
args = pop_fstr_copy();
if (args && args[0] == 'a')
*address += 4;
//printk("zs_open: address %lx, args %s\n", *address, args);
RET ( -1 );
}
DECLARE_UNNAMED_NODE(zs, INSTALL_OPEN, sizeof(unsigned long));
NODE_METHODS(zs) = {
{ "open", zs_open },
{ "close", zs_close },
{ "read", zs_read },
{ "write", zs_write },
};
DECLARE_UNNAMED_NODE(zs_keyboard, INSTALL_OPEN, sizeof(unsigned long));
NODE_METHODS(zs_keyboard) = {
{ "open", zs_open },
{ "close", zs_close },
{ "read", zs_read_keyboard },
};
static void
ob_zs_init(unsigned long base, unsigned long offset, int intr, int slave, int keyboard)
{
char nodebuff[256];
ob_new_obio_device("zs", "serial");
ob_reg(base, offset, ZS_REGS, 1);
@@ -116,6 +262,13 @@ ob_zs_init(unsigned long base, unsigned long offset, int intr, int slave, int ke
ob_intr(intr);
fword("finish-device");
sprintf(nodebuff, "/obio/zs@0,%x", offset);
if (keyboard) {
REGISTER_NODE_METHODS(zs_keyboard, nodebuff);
} else {
REGISTER_NODE_METHODS(zs, nodebuff);
}
}
static char *nvram;
@@ -147,8 +300,12 @@ ob_nvram_init(unsigned long base, unsigned long offset)
extern uint32_t cmdline;
extern uint32_t cmdline_size;
extern char boot_device;
extern char obp_stdin, obp_stdout;
extern const char *obp_stdin_path, *obp_stdout_path;
const char *stdin, *stdout;
unsigned int i;
char nographic;
ob_new_obio_device("eeprom", NULL);
@@ -171,6 +328,7 @@ ob_nvram_init(unsigned long base, unsigned long offset)
cmdline = nv_info.cmdline;
cmdline_size = nv_info.cmdline_size;
boot_device = nv_info.boot_device;
nographic = nv_info.nographic;
push_str("mk48t08");
fword("model");
@@ -301,6 +459,35 @@ ob_nvram_init(unsigned long base, unsigned long offset)
fword("finish-device");
}
if (nographic) {
obp_stdin = PROMDEV_TTYA;
obp_stdout = PROMDEV_TTYA;
stdin = "/obio/zs@0,100000:a";
stdout = "/obio/zs@0,100000:a";
} else {
obp_stdin = PROMDEV_KBD;
obp_stdout = PROMDEV_SCREEN;
stdin = "/obio/zs@0,0:a";
stdout = "/iommu/sbus/SUNW,tcx";
}
push_str("/");
fword("find-device");
push_str(stdin);
fword("encode-string");
push_str("stdin-path");
fword("encode-string");
fword("property");
push_str(stdout);
fword("encode-string");
push_str("stdout-path");
fword("encode-string");
fword("property");
obp_stdin_path = stdin;
obp_stdout_path = stdout;
}
static void