diff options
Diffstat (limited to 'qemu/roms/openbios/drivers/escc.c')
| -rw-r--r-- | qemu/roms/openbios/drivers/escc.c | 552 |
1 files changed, 0 insertions, 552 deletions
diff --git a/qemu/roms/openbios/drivers/escc.c b/qemu/roms/openbios/drivers/escc.c deleted file mode 100644 index 1990e798d..000000000 --- a/qemu/roms/openbios/drivers/escc.c +++ /dev/null @@ -1,552 +0,0 @@ -#include "config.h" -#include "libopenbios/bindings.h" -#include "libc/byteorder.h" -#include "libc/vsprintf.h" -#include "drivers/drivers.h" -#include "libopenbios/ofmem.h" - -#include "escc.h" - -/* ****************************************************************** - * serial console functions - * ****************************************************************** */ - -static volatile unsigned char *escc_serial_dev; - -#define CTRL(addr) (*(volatile unsigned char *)(uintptr_t)(addr)) -#ifdef CONFIG_DRIVER_ESCC_SUN -#define DATA(addr) (*(volatile unsigned char *)(uintptr_t)(addr + 2)) -#else -#define DATA(addr) (*(volatile unsigned char *)(uintptr_t)(addr + 16)) -#endif - -/* Conversion routines to/from brg time constants from/to bits - * per second. - */ -#define BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2) - -#ifdef CONFIG_DRIVER_ESCC_SUN -#define ESCC_CLOCK 4915200 /* Zilog input clock rate. */ -#else -#define ESCC_CLOCK 3686400 -#endif -#define ESCC_CLOCK_DIVISOR 16 /* Divisor this driver uses. */ - -/* Write Register 3 */ -#define RxENAB 0x1 /* Rx Enable */ -#define Rx8 0xc0 /* Rx 8 Bits/Character */ - -/* Write Register 4 */ -#define SB1 0x4 /* 1 stop bit/char */ -#define X16CLK 0x40 /* x16 clock mode */ - -/* Write Register 5 */ -#define RTS 0x2 /* RTS */ -#define TxENAB 0x8 /* Tx Enable */ -#define Tx8 0x60 /* Tx 8 bits/character */ -#define DTR 0x80 /* DTR */ - -/* Write Register 14 (Misc control bits) */ -#define BRENAB 1 /* Baud rate generator enable */ -#define BRSRC 2 /* Baud rate generator source */ - -/* Read Register 0 */ -#define Rx_CH_AV 0x1 /* Rx Character Available */ -#define Tx_BUF_EMP 0x4 /* Tx Buffer empty */ - -int escc_uart_charav(uintptr_t port) -{ - return (CTRL(port) & Rx_CH_AV) != 0; -} - -char escc_uart_getchar(uintptr_t port) -{ - while (!escc_uart_charav(port)) - ; - return DATA(port) & 0177; -} - -static void escc_uart_port_putchar(uintptr_t port, unsigned char c) -{ - if (!escc_serial_dev) - return; - - if (c == '\n') - escc_uart_port_putchar(port, '\r'); - while (!(CTRL(port) & Tx_BUF_EMP)) - ; - DATA(port) = c; -} - -static void uart_init_line(volatile unsigned char *port, unsigned long baud) -{ - CTRL(port) = 4; // reg 4 - CTRL(port) = SB1 | X16CLK; // no parity, async, 1 stop bit, 16x - // clock - - baud = BPS_TO_BRG(baud, ESCC_CLOCK / ESCC_CLOCK_DIVISOR); - - CTRL(port) = 12; // reg 12 - CTRL(port) = baud & 0xff; - CTRL(port) = 13; // reg 13 - CTRL(port) = (baud >> 8) & 0xff; - CTRL(port) = 14; // reg 14 - CTRL(port) = BRSRC | BRENAB; - - CTRL(port) = 3; // reg 3 - CTRL(port) = RxENAB | Rx8; // enable rx, 8 bits/char - - CTRL(port) = 5; // reg 5 - CTRL(port) = RTS | TxENAB | Tx8 | DTR; // enable tx, 8 bits/char, - // set RTS & DTR - -} - -int escc_uart_init(phys_addr_t port, unsigned long speed) -{ -#ifdef CONFIG_DRIVER_ESCC_SUN - escc_serial_dev = (unsigned char *)ofmem_map_io(port & ~7ULL, ZS_REGS); - escc_serial_dev += port & 7ULL; -#else - escc_serial_dev = (unsigned char *)(uintptr_t)port; -#endif - uart_init_line(escc_serial_dev, speed); - return -1; -} - -void escc_uart_putchar(int c) -{ - escc_uart_port_putchar((uintptr_t)escc_serial_dev, (unsigned char) (c & 0xff)); -} - -void serial_cls(void) -{ - escc_uart_putchar(27); - escc_uart_putchar('['); - escc_uart_putchar('H'); - escc_uart_putchar(27); - escc_uart_putchar('['); - escc_uart_putchar('J'); -} - -/* ( addr len -- actual ) */ -static void -escc_read(ucell *address) -{ - char *addr; - int len; - - len = POP(); - addr = (char *)cell2pointer(POP()); - - if (len < 1) - printk("escc_read: bad len, addr %p len %x\n", addr, len); - - if (escc_uart_charav(*address)) { - *addr = (char)escc_uart_getchar(*address); - PUSH(1); - } else { - PUSH(0); - } -} - -/* ( addr len -- actual ) */ -static void -escc_write(ucell *address) -{ - unsigned char *addr; - int i, len; - - len = POP(); - addr = (unsigned char *)cell2pointer(POP()); - - for (i = 0; i < len; i++) { - escc_uart_port_putchar(*address, addr[i]); - } - PUSH(len); -} - -static void -escc_close(void) -{ -} - -static void -escc_open(ucell *address) -{ -#ifdef CONFIG_DRIVER_ESCC_SUN - 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) { - if (args[0] == 'a') - *address += 4; - //printk("escc_open: address %lx, args %s\n", *address, args); - free(args); - } -#else - *address = (unsigned long)escc_serial_dev; // XXX -#endif - RET ( -1 ); -} - -DECLARE_UNNAMED_NODE(escc, INSTALL_OPEN, sizeof(ucell)); - -NODE_METHODS(escc) = { - { "open", escc_open }, - { "close", escc_close }, - { "read", escc_read }, - { "write", escc_write }, -}; - -#ifdef CONFIG_DRIVER_ESCC_SUN -static volatile unsigned char *kbd_dev; - -void kbd_init(phys_addr_t base) -{ - kbd_dev = (unsigned char *)ofmem_map_io(base, 2 * 4); - kbd_dev += 4; -} - -static const unsigned char sunkbd_keycode[128] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0, 8, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, - 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '\\', 13, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - ' ', -}; - -static const unsigned char sunkbd_keycode_shifted[128] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0, 8, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, - 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '|', 13, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - ' ', -}; - -static int shiftstate; - -int -keyboard_dataready(void) -{ - return ((kbd_dev[0] & 1) == 1); -} - -unsigned char -keyboard_readdata(void) -{ - unsigned char ch; - - while (!keyboard_dataready()) { } - - do { - ch = kbd_dev[2] & 0xff; - if (ch == 99) - shiftstate |= 1; - else if (ch == 110) - shiftstate |= 2; - else if (ch == 227) - shiftstate &= ~1; - else if (ch == 238) - shiftstate &= ~2; - //printk("getch: %d\n", ch); - } // If release, wait for key press - while ((ch & 0x80) == 0x80 || ch == 238 || ch == 227); - //printk("getch rel: %d\n", ch); - ch &= 0x7f; - if (shiftstate) - ch = sunkbd_keycode_shifted[ch]; - else - ch = sunkbd_keycode[ch]; - //printk("getch xlate: %d\n", ch); - - return ch; -} - -/* ( addr len -- actual ) */ -static void -escc_read_keyboard(void) -{ - unsigned char *addr; - int len; - - len = POP(); - addr = (unsigned char *)POP(); - - if (len < 1) - printk("escc_read: bad len, addr %p len %x\n", addr, len); - - if (keyboard_dataready()) { - *addr = keyboard_readdata(); - PUSH(1); - } else { - PUSH(0); - } -} - -DECLARE_UNNAMED_NODE(escc_keyboard, INSTALL_OPEN, sizeof(ucell)); - -NODE_METHODS(escc_keyboard) = { - { "open", escc_open }, - { "close", escc_close }, - { "read", escc_read_keyboard }, -}; - -void -ob_zs_init(phys_addr_t base, uint64_t offset, int intr, int slave, int keyboard) -{ - char nodebuff[256]; - phandle_t aliases; - - ob_new_obio_device("zs", "serial"); - - ob_reg(base, offset, ZS_REGS, 1); - - PUSH(slave); - fword("encode-int"); - push_str("slave"); - fword("property"); - - if (keyboard) { - PUSH(0); - PUSH(0); - push_str("keyboard"); - fword("property"); - - PUSH(0); - PUSH(0); - push_str("mouse"); - fword("property"); - } - - ob_intr(intr); - - PUSH(0); - PUSH(0); - push_str("port-a-ignore-cd"); - fword("property"); - - PUSH(0); - PUSH(0); - push_str("port-b-ignore-cd"); - fword("property"); - - fword("finish-device"); - - snprintf(nodebuff, sizeof(nodebuff), "/obio/zs@0,%x", - (int)offset & 0xffffffff); - if (keyboard) { - REGISTER_NODE_METHODS(escc_keyboard, nodebuff); - - aliases = find_dev("/aliases"); - set_property(aliases, "keyboard", nodebuff, strlen(nodebuff) + 1); - } else { - REGISTER_NODE_METHODS(escc, nodebuff); - - aliases = find_dev("/aliases"); - snprintf(nodebuff, sizeof(nodebuff), "/obio/zs@0,%x:a", - (int)offset & 0xffffffff); - set_property(aliases, "ttya", nodebuff, strlen(nodebuff) + 1); - - snprintf(nodebuff, sizeof(nodebuff), "/obio/zs@0,%x:b", - (int)offset & 0xffffffff); - set_property(aliases, "ttyb", nodebuff, strlen(nodebuff) + 1); - - } -} - -#else - -static void -escc_add_channel(const char *path, const char *node, phys_addr_t addr, - int esnum) -{ - char buf[64], tty[32]; - phandle_t dnode, aliases; - - cell props[10]; - ucell offset; - int index; - int legacy; - - int dbdma_offsets[2][2] = { - /* ch-b */ - { 0x6, 0x7 }, - /* ch-a */ - { 0x4, 0x5 } - }; - - int reg_offsets[2][2][3] = { - { - /* ch-b */ - { 0x00, 0x10, 0x40 }, - /* ch-a */ - { 0x20, 0x30, 0x50 } - },{ - /* legacy ch-b */ - { 0x0, 0x2, 0x8 }, - /* legacy ch-a */ - { 0x4, 0x6, 0xa } - } - }; - - switch (esnum) { - case 2: index = 1; legacy = 0; break; - case 3: index = 0; legacy = 0; break; - case 4: index = 1; legacy = 1; break; - case 5: index = 0; legacy = 1; break; - default: return; - } - - /* add device */ - - snprintf(buf, sizeof(buf), "%s/ch-%s", path, node); - - REGISTER_NAMED_NODE(escc, buf); - - activate_device(buf); - - /* add aliases */ - - aliases = find_dev("/aliases"); - - snprintf(buf, sizeof(buf), "%s/ch-%s", path, node); - OLDWORLD(snprintf(tty, sizeof(tty), "tty%s", node)); - OLDWORLD(set_property(aliases, tty, buf, strlen(buf) + 1)); - snprintf(tty, sizeof(tty), "scc%s", node); - set_property(aliases, tty, buf, strlen(buf) + 1); - - /* add properties */ - - dnode = find_dev(buf); - set_property(dnode, "device_type", "serial", - strlen("serial") + 1); - - snprintf(buf, sizeof(buf), "chrp,es%d", esnum); - set_property(dnode, "compatible", buf, 9); - - if (legacy) { - offset = IO_ESCC_LEGACY_OFFSET; - } else { - offset = IO_ESCC_OFFSET; - } - - props[0] = offset + reg_offsets[legacy][index][0]; - props[1] = 0x1; - props[2] = offset + reg_offsets[legacy][index][1]; - props[3] = 0x1; - props[4] = offset + reg_offsets[legacy][index][2]; - props[5] = 0x1; - props[6] = 0x8000 + dbdma_offsets[index][0] * 0x100; - props[7] = 0x100; - props[8] = 0x8000 + dbdma_offsets[index][1] * 0x100; - props[9] = 0x100; - set_property(dnode, "reg", (char *)&props, 10 * sizeof(cell)); - - props[0] = addr + offset + reg_offsets[legacy][index][0]; - OLDWORLD(set_property(dnode, "AAPL,address", - (char *)&props, 1 * sizeof(cell))); - - props[0] = 0x10 - index; - OLDWORLD(set_property(dnode, "AAPL,interrupts", - (char *)&props, 1 * sizeof(cell))); - - props[0] = (0x24) + index; - props[1] = 0x1; - props[2] = dbdma_offsets[index][0]; - props[3] = 0x0; - props[4] = dbdma_offsets[index][1]; - props[5] = 0x0; - NEWWORLD(set_property(dnode, "interrupts", - (char *)&props, 6 * sizeof(cell))); - - set_int_property(dnode, "slot-names", 0); - - device_end(); - - uart_init_line((unsigned char*)addr + offset + reg_offsets[legacy][index][0], - CONFIG_SERIAL_SPEED); -} - -void -escc_init(const char *path, phys_addr_t addr) -{ - char buf[64]; - int props[2]; - phandle_t dnode; - - push_str(path); - fword("find-device"); - fword("new-device"); - - push_str("escc"); - fword("device-name"); - - snprintf(buf, sizeof(buf), "%s/escc", path); - - dnode = find_dev(buf); - - set_int_property(dnode, "#address-cells", 1); - props[0] = __cpu_to_be32(IO_ESCC_OFFSET); - props[1] = __cpu_to_be32(IO_ESCC_SIZE); - set_property(dnode, "reg", (char *)&props, sizeof(props)); - set_property(dnode, "device_type", "escc", - strlen("escc") + 1); - set_property(dnode, "compatible", "escc\0CHRP,es0", 14); - set_property(dnode, "ranges", "", 0); - - fword("finish-device"); - - escc_add_channel(buf, "a", addr, 2); - escc_add_channel(buf, "b", addr, 3); - - escc_serial_dev = (unsigned char *)addr + IO_ESCC_OFFSET + - (CONFIG_SERIAL_PORT ? 0 : 0x20); - - push_str(path); - fword("find-device"); - fword("new-device"); - - push_str("escc-legacy"); - fword("device-name"); - - snprintf(buf, sizeof(buf), "%s/escc-legacy", path); - - dnode = find_dev(buf); - - set_int_property(dnode, "#address-cells", 1); - props[0] = __cpu_to_be32(IO_ESCC_LEGACY_OFFSET); - props[1] = __cpu_to_be32(IO_ESCC_LEGACY_SIZE); - set_property(dnode, "reg", (char *)&props, sizeof(props)); - set_property(dnode, "device_type", "escc-legacy", - strlen("escc-legacy") + 1); - set_property(dnode, "compatible", "chrp,es1", 9); - set_property(dnode, "ranges", "", 0); - - fword("finish-device"); - - escc_add_channel(buf, "a", addr, 4); - escc_add_channel(buf, "b", addr, 5); -} -#endif |