mirror of
https://gitlab.com/qemu-project/openbios.git
synced 2024-02-13 08:34:06 +08:00
Move serial console functions to obio.c
git-svn-id: svn://coreboot.org/openbios/openbios-devel@317 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
@@ -12,124 +12,6 @@
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#ifdef CONFIG_DEBUG_CONSOLE
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/* ******************************************************************
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* serial console functions
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* ****************************************************************** */
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#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
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static volatile unsigned char *kbd_dev, *serial_dev;
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#define CTRL(port) serial_dev[(port) * 2 + 0]
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#define DATA(port) serial_dev[(port) * 2 + 2]
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/* Conversion routines to/from brg time constants from/to bits
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* per second.
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*/
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#define BRG_TO_BPS(brg, freq) ((freq) / 2 / ((brg) + 2))
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#define BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2)
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#define ZS_CLOCK 4915200 /* Zilog input clock rate. */
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#define ZS_CLOCK_DIVISOR 16 /* Divisor this driver uses. */
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/* Write Register 3 */
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#define RxENAB 0x1 /* Rx Enable */
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#define Rx8 0xc0 /* Rx 8 Bits/Character */
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/* Write Register 4 */
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#define SB1 0x4 /* 1 stop bit/char */
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#define X16CLK 0x40 /* x16 clock mode */
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/* Write Register 5 */
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#define RTS 0x2 /* RTS */
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#define TxENAB 0x8 /* Tx Enable */
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#define Tx8 0x60 /* Tx 8 bits/character */
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#define DTR 0x80 /* DTR */
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/* Write Register 14 (Misc control bits) */
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#define BRENAB 1 /* Baud rate generator enable */
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#define BRSRC 2 /* Baud rate generator source */
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/* Read Register 0 */
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#define Rx_CH_AV 0x1 /* Rx Character Available */
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static int uart_charav(int port)
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{
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return ((CTRL(port) & Rx_CH_AV) != 0);
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}
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static char uart_getchar(int port)
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{
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while (!uart_charav(port))
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;
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return DATA(port) & 0177;
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}
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static void uart_putchar(int port, unsigned char c)
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{
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if (!serial_dev)
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return;
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if (c == '\n')
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uart_putchar(port, '\r');
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while (!(CTRL(port) & 4))
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;
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DATA(port) = c;
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}
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static void uart_init_line(int port, unsigned long baud)
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{
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CTRL(port) = 4; // reg 4
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CTRL(port) = SB1 | X16CLK; // no parity, async, 1 stop bit, 16x
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// clock
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baud = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
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CTRL(port) = 12; // reg 12
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CTRL(port) = baud & 0xff;
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CTRL(port) = 13; // reg 13
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CTRL(port) = (baud >> 8) & 0xff;
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CTRL(port) = 14; // reg 14
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CTRL(port) = BRSRC | BRENAB;
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CTRL(port) = 3; // reg 3
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CTRL(port) = RxENAB | Rx8; // enable rx, 8 bits/char
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CTRL(port) = 5; // reg 5
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CTRL(port) = RTS | TxENAB | Tx8 | DTR; // enable tx, 8 bits/char,
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// set RTS & DTR
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}
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int uart_init(uint64_t port, unsigned long speed)
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{
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int line;
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serial_dev = map_io(port & ~7ULL, 2 * 4);
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serial_dev += port & 7ULL;
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line = port & 3ULL;
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uart_init_line(line, speed);
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return -1;
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}
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static void serial_putchar(int c)
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{
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uart_putchar(CONFIG_SERIAL_PORT, (unsigned char) (c & 0xff));
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}
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static void serial_cls(void)
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{
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serial_putchar(27);
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serial_putchar('[');
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serial_putchar('H');
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serial_putchar(27);
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serial_putchar('[');
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serial_putchar('J');
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}
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#endif
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/* ******************************************************************
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* simple polling video/keyboard console functions
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* ****************************************************************** */
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@@ -175,79 +57,6 @@ void tcx_init(uint64_t base)
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console_init();
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}
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void kbd_init(uint64_t base)
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{
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kbd_dev = map_io(base, 2 * 4);
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kbd_dev += 4;
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}
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static const unsigned char sunkbd_keycode[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0, 8,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 9,
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '\\', 13,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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' ',
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};
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static const unsigned char sunkbd_keycode_shifted[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0, 8,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 9,
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '|', 13,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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' ',
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};
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static int shiftstate;
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int
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keyboard_dataready(void)
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{
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return ((kbd_dev[0] & 1) == 1);
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}
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unsigned char
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keyboard_readdata(void)
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{
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unsigned char ch;
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while (!keyboard_dataready()) { }
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do {
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ch = kbd_dev[2] & 0xff;
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if (ch == 99)
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shiftstate |= 1;
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else if (ch == 110)
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shiftstate |= 2;
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else if (ch == 227)
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shiftstate &= ~1;
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else if (ch == 238)
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shiftstate &= ~2;
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//printk("getch: %d\n", ch);
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}
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while ((ch & 0x80) == 0 || ch == 238 || ch == 227); // Wait for key release
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//printk("getch rel: %d\n", ch);
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ch &= 0x7f;
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if (shiftstate)
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ch = sunkbd_keycode_shifted[ch];
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else
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ch = sunkbd_keycode[ch];
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//printk("getch xlate: %d\n", ch);
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return ch;
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}
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#endif
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/* ******************************************************************
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@@ -22,7 +22,6 @@ int openbios(void);
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/* console.c */
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extern unsigned char *vmem;
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#ifdef CONFIG_DEBUG_CONSOLE
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extern int uart_init(uint64_t port, unsigned long speed);
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extern void video_init(void);
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#endif
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181
drivers/obio.c
181
drivers/obio.c
@@ -111,33 +111,119 @@ ob_intr(int intr)
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fword("property");
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}
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// XXX move all arch/sparc32/console.c stuff here
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#define CTRL(addr) (*(char *)(addr))
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#define DATA(addr) (*(char *)(addr + 2))
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/* ******************************************************************
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* serial console functions
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* ****************************************************************** */
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static volatile unsigned char *kbd_dev, *serial_dev;
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#define CTRL(port) serial_dev[(port) * 2 + 0]
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#define DATA(port) serial_dev[(port) * 2 + 2]
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/* Conversion routines to/from brg time constants from/to bits
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* per second.
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*/
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#define BRG_TO_BPS(brg, freq) ((freq) / 2 / ((brg) + 2))
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#define BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2)
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#define ZS_CLOCK 4915200 /* Zilog input clock rate. */
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#define ZS_CLOCK_DIVISOR 16 /* Divisor this driver uses. */
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/* Write Register 3 */
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#define RxENAB 0x1 /* Rx Enable */
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#define Rx8 0xc0 /* Rx 8 Bits/Character */
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/* Write Register 4 */
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#define SB1 0x4 /* 1 stop bit/char */
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#define X16CLK 0x40 /* x16 clock mode */
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/* Write Register 5 */
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#define RTS 0x2 /* RTS */
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#define TxENAB 0x8 /* Tx Enable */
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#define Tx8 0x60 /* Tx 8 bits/character */
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#define DTR 0x80 /* DTR */
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/* Write Register 14 (Misc control bits) */
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#define BRENAB 1 /* Baud rate generator enable */
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#define BRSRC 2 /* Baud rate generator source */
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/* Read Register 0 */
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#define Rx_CH_AV 0x1 /* Rx Character Available */
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#define Tx_BUF_EMP 0x4 /* Tx Buffer empty */
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static int uart_charav(int port)
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int uart_charav(int port)
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{
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return (CTRL(port) & Rx_CH_AV) != 0;
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}
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static char uart_getchar(int port)
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char uart_getchar(int port)
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{
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while (!uart_charav(port));
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while (!uart_charav(port))
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;
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return DATA(port) & 0177;
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}
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static void uart_putchar(int port, unsigned char c)
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{
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if (c == '\n')
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uart_putchar(port, '\r');
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while (!(CTRL(port) & Tx_BUF_EMP));
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if (!serial_dev)
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return;
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DATA(port) = c;
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if (c == '\n')
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uart_putchar(port, '\r');
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while (!(CTRL(port) & Tx_BUF_EMP))
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;
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DATA(port) = c;
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}
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static void uart_init_line(int port, unsigned long baud)
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{
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CTRL(port) = 4; // reg 4
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CTRL(port) = SB1 | X16CLK; // no parity, async, 1 stop bit, 16x
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// clock
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baud = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
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CTRL(port) = 12; // reg 12
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CTRL(port) = baud & 0xff;
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CTRL(port) = 13; // reg 13
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CTRL(port) = (baud >> 8) & 0xff;
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CTRL(port) = 14; // reg 14
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CTRL(port) = BRSRC | BRENAB;
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CTRL(port) = 3; // reg 3
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CTRL(port) = RxENAB | Rx8; // enable rx, 8 bits/char
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CTRL(port) = 5; // reg 5
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CTRL(port) = RTS | TxENAB | Tx8 | DTR; // enable tx, 8 bits/char,
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// set RTS & DTR
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}
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int uart_init(uint64_t port, unsigned long speed)
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{
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int line;
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serial_dev = map_io(port & ~7ULL, 2 * 4);
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serial_dev += port & 7ULL;
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line = port & 3ULL;
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uart_init_line(line, speed);
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return -1;
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}
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void serial_putchar(int c)
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{
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uart_putchar(CONFIG_SERIAL_PORT, (unsigned char) (c & 0xff));
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}
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void serial_cls(void)
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{
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serial_putchar(27);
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serial_putchar('[');
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serial_putchar('H');
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serial_putchar(27);
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serial_putchar('[');
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serial_putchar('J');
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}
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/* ( addr len -- actual ) */
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@@ -161,6 +247,79 @@ zs_read(unsigned long *address)
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}
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}
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void kbd_init(uint64_t base)
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{
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kbd_dev = map_io(base, 2 * 4);
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kbd_dev += 4;
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}
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static const unsigned char sunkbd_keycode[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0, 8,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 9,
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '\\', 13,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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' ',
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};
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static const unsigned char sunkbd_keycode_shifted[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0, 8,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 9,
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '|', 13,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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' ',
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};
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static int shiftstate;
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int
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keyboard_dataready(void)
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{
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return ((kbd_dev[0] & 1) == 1);
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}
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unsigned char
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keyboard_readdata(void)
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{
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unsigned char ch;
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while (!keyboard_dataready()) { }
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do {
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ch = kbd_dev[2] & 0xff;
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if (ch == 99)
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shiftstate |= 1;
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else if (ch == 110)
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shiftstate |= 2;
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else if (ch == 227)
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shiftstate &= ~1;
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else if (ch == 238)
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shiftstate &= ~2;
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//printk("getch: %d\n", ch);
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}
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while ((ch & 0x80) == 0 || ch == 238 || ch == 227); // Wait for key release
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//printk("getch rel: %d\n", ch);
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ch &= 0x7f;
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if (shiftstate)
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ch = sunkbd_keycode_shifted[ch];
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else
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ch = sunkbd_keycode[ch];
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//printk("getch xlate: %d\n", ch);
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return ch;
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}
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/* ( addr len -- actual ) */
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static void
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zs_read_keyboard(void)
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@@ -59,6 +59,11 @@ int ob_obio_init(uint64_t slavio_base, unsigned long fd_offset,
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unsigned long aux1_offset, unsigned long aux2_offset);
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int start_cpu(unsigned int pc, unsigned int context_ptr, unsigned int context,
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int cpu);
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void serial_putchar(int c);
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int uart_charav(int port);
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char uart_getchar(int port);
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void serial_cls(void);
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int uart_init(uint64_t port, unsigned long speed);
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/* drivers/iommu.c */
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extern struct mem cmem;
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