diff options
Diffstat (limited to 'sys/arch/amd64/isa')
| -rw-r--r-- | sys/arch/amd64/isa/i8042.c | 297 | ||||
| -rw-r--r-- | sys/arch/amd64/isa/i8254.c | 75 | ||||
| -rw-r--r-- | sys/arch/amd64/isa/spkr.c | 68 |
3 files changed, 0 insertions, 440 deletions
diff --git a/sys/arch/amd64/isa/i8042.c b/sys/arch/amd64/isa/i8042.c deleted file mode 100644 index 8c790ec..0000000 --- a/sys/arch/amd64/isa/i8042.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -#include <sys/types.h> -#include <sys/driver.h> -#include <sys/errno.h> -#include <sys/spinlock.h> -#include <sys/tty.h> -#include <sys/intr.h> -#include <machine/ioapic.h> -#include <machine/idt.h> -#include <machine/io.h> -#include <machine/lapic.h> -#include <machine/hpet.h> -#include <machine/sysvec.h> -#include <machine/isa/i8042regs.h> - -__MODULE_NAME("i8042"); -__KERNEL_META("$Hyra$: i8042.c, Ian Marco Moffett, " - "i8042 PS/2 driver"); - -static struct spinlock data_lock; -static bool shift_key = false; -static bool capslock = false; -static bool capslock_released = true; -static struct intr_info *irq_info; - -static int dev_send(bool aux, uint8_t data); - -static char keytab[] = { - '\0', '\0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', - '-', '=', '\b', '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', - 'o', 'p', '[', ']', '\n', '\0', 'a', 's', 'd', 'f', 'g', 'h', - 'j', 'k', 'l', ';', '\'', '`', '\0', '\\', 'z', 'x', 'c', 'v', - 'b', 'n', 'm', ',', '.', '/', '\0', '\0', '\0', ' ' -}; - -static char keytab_shift[] = { - '\0', '\0', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', - '_', '+', '\b', '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', - 'O', 'P', '{', '}', '\n', '\0', 'A', 'S', 'D', 'F', 'G', 'H', - 'J', 'K', 'L', ':', '\"', '~', '\0', '|', 'Z', 'X', 'C', 'V', - 'B', 'N', 'M', '<', '>', '?', '\0', '\0', '\0', ' ' -}; - -static char keytab_caps[] = { - '\0', '\0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', - '-','=', '\b', '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', - 'O', 'P', '[', ']', '\n', '\0', 'A', 'S', 'D', 'F', 'G', 'H', - 'J', 'K', 'L', ';', '\'', '`', '\0', '\\', 'Z', 'X', 'C', 'V', - 'B', 'N', 'M', ',', '.', '/', '\0', '\0', '\0', ' ' -}; - -static void -kbd_set_leds(uint8_t mask) -{ - dev_send(false, 0xED); - dev_send(false, mask); -} - -/* - * Convert scancode to character - * - * @sc: Scancode - * @chr: Character output - * - * Returns 0 when a char is given back. - */ -static int -scancode_to_chr(uint8_t sc, char *chr) -{ - bool release = __TEST(sc, __BIT(7)); - - switch (sc) { - /* Capslock pressed */ - case 0x3A: - /* - * If we are holding down caps-lock, we do not - * want a stream of presses that constantly cause - * it to toggle, only toggle if released then pushed - * again. - */ - if (!capslock_released) - return -EAGAIN; - - capslock_released = false; - capslock = !capslock; - - if (!capslock) { - kbd_set_leds(0); - } else { - kbd_set_leds(I8042_LED_CAPS); - } - return -EAGAIN; - /* Capslock released */ - case 0xBA: - capslock_released = true; - return -EAGAIN; - /* Shift */ - case 0x36: - case 0xAA: - case 0x2A: - case 0xB6: - if (!release) { - shift_key = true; - } else { - shift_key = false; - } - return -EAGAIN; - } - - if (release) { - return -EAGAIN; - } - - if (capslock) { - *chr = keytab_caps[sc]; - return 0; - } - - if (shift_key) { - *chr = keytab_shift[sc]; - return 0; - } - - *chr = keytab[sc]; - return 0; -} - -/* - * Write to an i8042 register. - * - * @port: I/O port - * @val: Value to write - */ -static void -i8042_write(uint16_t port, uint8_t val) -{ - while (__TEST(I8042_STATUS, I8042_IBUF_FULL)); - outb(port, val); -} - -/* - * Read the i8042 config register - */ -static uint8_t -i8042_read_conf(void) -{ - i8042_write(I8042_COMMAND, I8042_GET_CONFB); - return inb(I8042_DATA); -} - -/* - * Write the i8042 config register - */ -static void -i8042_write_conf(uint8_t value) -{ - i8042_write(I8042_COMMAND, I8042_SET_CONFB); - i8042_write(I8042_DATA, value); -} - -/* - * Flush the data register until it is empty. - */ -static void -i8042_drain(void) -{ - spinlock_acquire(&data_lock); - while (__TEST(inb(I8042_STATUS), I8042_OBUF_FULL)) { - inb(I8042_DATA); - } - - spinlock_release(&data_lock); -} - -/* - * Send a data to a device - * - * @aux: If true, send to aux device (mouse) - * @data: Data to send. - */ -static int -dev_send(bool aux, uint8_t data) -{ - if (aux) { - i8042_write(I8042_COMMAND, I8042_PORT1_SEND); - } - - for (;;) { - if (!__TEST(inb(I8042_STATUS), I8042_IBUF_FULL)) { - break; - } - } - - i8042_write(I8042_DATA, data); - inb(0x80); /* Waste a cycle */ - return inb(I8042_DATA); -} - -__attr(interrupt) -static void -kb_isr(void *sf) -{ - uint8_t data; - char c; - - spinlock_acquire(&irq_info->lock); - ++irq_info->count; - spinlock_release(&irq_info->lock); - - spinlock_acquire(&data_lock); - while (__TEST(inb(I8042_STATUS), I8042_OBUF_FULL)) { - data = inb(I8042_DATA); - if (scancode_to_chr(data, &c) == 0) { - tty_putc(&g_root_tty, c, TTY_SOURCE_DEV); - } - } - spinlock_release(&data_lock); - lapic_send_eoi(); -} - -static int -i8042_init(void) -{ - uint8_t conf; - - /* - * Disable the ports and drain the output buffer - * to avoid interferance with the initialization - * process. - */ - i8042_write(I8042_COMMAND, I8042_DISABLE_PORT0); - i8042_write(I8042_COMMAND, I8042_DISABLE_PORT1); - i8042_drain(); - - /* Disable aux data streaming */ - dev_send(true, I8042_AUX_DISABLE); - i8042_drain(); - - /* Setup kbd interrupts */ - idt_set_desc(SYSVEC_PCKBD, IDT_INT_GATE_FLAGS, (uintptr_t)kb_isr, 0); - ioapic_set_vec(1, SYSVEC_PCKBD); - ioapic_irq_unmask(1); - - /* Register the interrupt */ - irq_info = intr_info_alloc("IOAPIC", "i8042"); - irq_info->affinity = 0; - intr_register(irq_info); - - /* Setup config bits */ - conf = i8042_read_conf(); - conf |= I8042_PORT0_INTR; - conf &= ~I8042_PORT1_INTR; - i8042_write_conf(conf); - - /* Enable the keyboard */ - i8042_write(I8042_COMMAND, I8042_ENABLE_PORT0); - - /* - * It seems one I/O bus cycle isn't enough to wait for data - * to accumulate on some machines... Give it around 50ms then - * drain the output buffer. - */ - hpet_msleep(50); - i8042_drain(); - return 0; -} - -DRIVER_EXPORT(i8042_init); diff --git a/sys/arch/amd64/isa/i8254.c b/sys/arch/amd64/isa/i8254.c deleted file mode 100644 index f19fb6b..0000000 --- a/sys/arch/amd64/isa/i8254.c +++ /dev/null @@ -1,75 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <machine/isa/i8254.h> -#include <machine/io.h> -#include <sys/types.h> -#include <sys/cdefs.h> - -/* - * Fetches the current count. - */ -uint16_t -i8254_get_count(void) -{ - uint8_t lo, hi; - - outb(i8254_COMMAND, 0x00); - lo = inb(0x40); - hi = inb(0x40); - return __COMBINE8(hi, lo); -} - -/* - * Set the reload value - * - * The reload value is where the i8254's counter - * starts... - */ -void -i8254_set_reload(uint16_t val) -{ - /* Channel 0, lo/hi access, rate generator */ - outb(i8254_COMMAND, 0x34); - - outb(0x40, (val & 0xFF)); - outb(0x40, (val >> 8) & 0xFF); -} - -void -i8254_set_frequency(uint64_t freq_hz) -{ - uint64_t divisor = i8254_DIVIDEND / freq_hz; - - if ((i8254_DIVIDEND % freq_hz) > (freq_hz / 2)) { - ++divisor; - } - - i8254_set_reload(freq_hz); -} diff --git a/sys/arch/amd64/isa/spkr.c b/sys/arch/amd64/isa/spkr.c deleted file mode 100644 index 109054e..0000000 --- a/sys/arch/amd64/isa/spkr.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -#include <sys/timer.h> -#include <sys/errno.h> -#include <machine/isa/spkr.h> -#include <machine/isa/i8254.h> -#include <machine/io.h> - -#define DIVIDEND 1193180 -#define CTRL_PORT 0x61 - -int -pcspkr_tone(uint16_t freq, uint32_t msec) -{ - uint32_t divisor; - uint8_t tmp; - struct timer tmr; - - if (req_timer(TIMER_GP, &tmr) != TMRR_SUCCESS) - return -ENOTSUP; - if (__unlikely(tmr.msleep == NULL)) - return -ENOTSUP; - - divisor = DIVIDEND / freq; - outb(i8254_COMMAND, 0xB6); - outb(i8254_CHANNEL_2, divisor & 0xFF); - outb(i8254_CHANNEL_2, (divisor >> 8) & 0xFF); - - /* Oscillate the speaker */ - tmp = inb(CTRL_PORT); - if (!__TEST(tmp, 3)) { - tmp |= 3; - outb(CTRL_PORT, tmp); - } - - /* Sleep then turn off the speaker */ - tmr.msleep(msec); - outb(CTRL_PORT, tmp & ~3); - return 0; -} |