diff options
Diffstat (limited to 'sys/arch/amd64/isa/spkr.c')
-rw-r--r-- | sys/arch/amd64/isa/spkr.c | 68 |
1 files changed, 0 insertions, 68 deletions
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; -} |