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-rw-r--r--sound/oss/uart6850.c361
1 files changed, 0 insertions, 361 deletions
diff --git a/sound/oss/uart6850.c b/sound/oss/uart6850.c
deleted file mode 100644
index eda32d7eddbd..000000000000
--- a/sound/oss/uart6850.c
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * sound/oss/uart6850.c
- *
- *
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- * Extended by Alan Cox for Red Hat Software. Now a loadable MIDI driver.
- * 28/4/97 - (C) Copyright Alan Cox. Released under the GPL version 2.
- *
- * Alan Cox: Updated for new modular code. Removed snd_* irq handling. Now
- * uses native linux resources
- * Christoph Hellwig: Adapted to module_init/module_exit
- * Jeff Garzik: Made it work again, in theory
- * FIXME: If the request_irq() succeeds, the probe succeeds. Ug.
- *
- * Status: Testing required (no shit -jgarzik)
- *
- *
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-/* Mon Nov 22 22:38:35 MET 1993 marco@driq.home.usn.nl:
- * added 6850 support, used with COVOX SoundMaster II and custom cards.
- */
-
-#include "sound_config.h"
-
-static int uart6850_base = 0x330;
-
-static int *uart6850_osp;
-
-#define DATAPORT (uart6850_base)
-#define COMDPORT (uart6850_base+1)
-#define STATPORT (uart6850_base+1)
-
-static int uart6850_status(void)
-{
- return inb(STATPORT);
-}
-
-#define input_avail() (uart6850_status()&INPUT_AVAIL)
-#define output_ready() (uart6850_status()&OUTPUT_READY)
-
-static void uart6850_cmd(unsigned char cmd)
-{
- outb(cmd, COMDPORT);
-}
-
-static int uart6850_read(void)
-{
- return inb(DATAPORT);
-}
-
-static void uart6850_write(unsigned char byte)
-{
- outb(byte, DATAPORT);
-}
-
-#define OUTPUT_READY 0x02 /* Mask for data ready Bit */
-#define INPUT_AVAIL 0x01 /* Mask for Data Send Ready Bit */
-
-#define UART_RESET 0x95
-#define UART_MODE_ON 0x03
-
-static int uart6850_opened;
-static int uart6850_irq;
-static int uart6850_detected;
-static int my_dev;
-static DEFINE_SPINLOCK(lock);
-
-static void (*midi_input_intr) (int dev, unsigned char data);
-static void poll_uart6850(unsigned long dummy);
-
-
-static DEFINE_TIMER(uart6850_timer, poll_uart6850, 0, 0);
-
-static void uart6850_input_loop(void)
-{
- int count = 10;
-
- while (count)
- {
- /*
- * Not timed out
- */
- if (input_avail())
- {
- unsigned char c = uart6850_read();
- count = 100;
- if (uart6850_opened & OPEN_READ)
- midi_input_intr(my_dev, c);
- }
- else
- {
- while (!input_avail() && count)
- count--;
- }
- }
-}
-
-static irqreturn_t m6850intr(int irq, void *dev_id)
-{
- if (input_avail())
- uart6850_input_loop();
- return IRQ_HANDLED;
-}
-
-/*
- * It looks like there is no input interrupts in the UART mode. Let's try
- * polling.
- */
-
-static void poll_uart6850(unsigned long dummy)
-{
- unsigned long flags;
-
- if (!(uart6850_opened & OPEN_READ))
- return; /* Device has been closed */
-
- spin_lock_irqsave(&lock,flags);
- if (input_avail())
- uart6850_input_loop();
-
- uart6850_timer.expires = 1 + jiffies;
- add_timer(&uart6850_timer);
-
- /*
- * Come back later
- */
-
- spin_unlock_irqrestore(&lock,flags);
-}
-
-static int uart6850_open(int dev, int mode,
- void (*input) (int dev, unsigned char data),
- void (*output) (int dev)
-)
-{
- if (uart6850_opened)
- {
-/* printk("Midi6850: Midi busy\n");*/
- return -EBUSY;
- }
-
- uart6850_cmd(UART_RESET);
- uart6850_input_loop();
- midi_input_intr = input;
- uart6850_opened = mode;
- poll_uart6850(0); /*
- * Enable input polling
- */
-
- return 0;
-}
-
-static void uart6850_close(int dev)
-{
- uart6850_cmd(UART_MODE_ON);
- del_timer(&uart6850_timer);
- uart6850_opened = 0;
-}
-
-static int uart6850_out(int dev, unsigned char midi_byte)
-{
- int timeout;
- unsigned long flags;
-
- /*
- * Test for input since pending input seems to block the output.
- */
-
- spin_lock_irqsave(&lock,flags);
-
- if (input_avail())
- uart6850_input_loop();
-
- spin_unlock_irqrestore(&lock,flags);
-
- /*
- * Sometimes it takes about 13000 loops before the output becomes ready
- * (After reset). Normally it takes just about 10 loops.
- */
-
- for (timeout = 30000; timeout > 0 && !output_ready(); timeout--); /*
- * Wait
- */
- if (!output_ready())
- {
- printk(KERN_WARNING "Midi6850: Timeout\n");
- return 0;
- }
- uart6850_write(midi_byte);
- return 1;
-}
-
-static inline int uart6850_command(int dev, unsigned char *midi_byte)
-{
- return 1;
-}
-
-static inline int uart6850_start_read(int dev)
-{
- return 0;
-}
-
-static inline int uart6850_end_read(int dev)
-{
- return 0;
-}
-
-static inline void uart6850_kick(int dev)
-{
-}
-
-static inline int uart6850_buffer_status(int dev)
-{
- return 0; /*
- * No data in buffers
- */
-}
-
-#define MIDI_SYNTH_NAME "6850 UART Midi"
-#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT
-#include "midi_synth.h"
-
-static struct midi_operations uart6850_operations =
-{
- .owner = THIS_MODULE,
- .info = {"6850 UART", 0, 0, SNDCARD_UART6850},
- .converter = &std_midi_synth,
- .in_info = {0},
- .open = uart6850_open,
- .close = uart6850_close,
- .outputc = uart6850_out,
- .start_read = uart6850_start_read,
- .end_read = uart6850_end_read,
- .kick = uart6850_kick,
- .command = uart6850_command,
- .buffer_status = uart6850_buffer_status
-};
-
-
-static void __init attach_uart6850(struct address_info *hw_config)
-{
- int ok, timeout;
- unsigned long flags;
-
- if (!uart6850_detected)
- return;
-
- if ((my_dev = sound_alloc_mididev()) == -1)
- {
- printk(KERN_INFO "uart6850: Too many midi devices detected\n");
- return;
- }
- uart6850_base = hw_config->io_base;
- uart6850_osp = hw_config->osp;
- uart6850_irq = hw_config->irq;
-
- spin_lock_irqsave(&lock,flags);
-
- for (timeout = 30000; timeout > 0 && !output_ready(); timeout--); /*
- * Wait
- */
- uart6850_cmd(UART_MODE_ON);
- ok = 1;
- spin_unlock_irqrestore(&lock,flags);
-
- conf_printf("6850 Midi Interface", hw_config);
-
- std_midi_synth.midi_dev = my_dev;
- hw_config->slots[4] = my_dev;
- midi_devs[my_dev] = &uart6850_operations;
- sequencer_init();
-}
-
-static inline int reset_uart6850(void)
-{
- uart6850_read();
- return 1; /*
- * OK
- */
-}
-
-static int __init probe_uart6850(struct address_info *hw_config)
-{
- int ok;
-
- uart6850_osp = hw_config->osp;
- uart6850_base = hw_config->io_base;
- uart6850_irq = hw_config->irq;
-
- if (request_irq(uart6850_irq, m6850intr, 0, "MIDI6850", NULL) < 0)
- return 0;
-
- ok = reset_uart6850();
- uart6850_detected = ok;
- return ok;
-}
-
-static void __exit unload_uart6850(struct address_info *hw_config)
-{
- free_irq(hw_config->irq, NULL);
- sound_unload_mididev(hw_config->slots[4]);
-}
-
-static struct address_info cfg_mpu;
-
-static int __initdata io = -1;
-static int __initdata irq = -1;
-
-module_param_hw(io, int, ioport, 0);
-module_param_hw(irq, int, irq, 0);
-
-static int __init init_uart6850(void)
-{
- cfg_mpu.io_base = io;
- cfg_mpu.irq = irq;
-
- if (cfg_mpu.io_base == -1 || cfg_mpu.irq == -1) {
- printk(KERN_INFO "uart6850: irq and io must be set.\n");
- return -EINVAL;
- }
-
- if (probe_uart6850(&cfg_mpu))
- return -ENODEV;
- attach_uart6850(&cfg_mpu);
-
- return 0;
-}
-
-static void __exit cleanup_uart6850(void)
-{
- unload_uart6850(&cfg_mpu);
-}
-
-module_init(init_uart6850);
-module_exit(cleanup_uart6850);
-
-#ifndef MODULE
-static int __init setup_uart6850(char *str)
-{
- /* io, irq */
- int ints[3];
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- io = ints[1];
- irq = ints[2];
-
- return 1;
-}
-__setup("uart6850=", setup_uart6850);
-#endif
-MODULE_LICENSE("GPL");
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