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-rw-r--r--sound/oss/pas2_card.c455
1 files changed, 455 insertions, 0 deletions
diff --git a/sound/oss/pas2_card.c b/sound/oss/pas2_card.c
new file mode 100644
index 00000000..dabf8a87
--- /dev/null
+++ b/sound/oss/pas2_card.c
@@ -0,0 +1,455 @@
+/*
+ * sound/oss/pas2_card.c
+ *
+ * Detection routine for the Pro Audio Spectrum cards.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include "sound_config.h"
+
+#include "pas2.h"
+#include "sb.h"
+
+static unsigned char dma_bits[] = {
+ 4, 1, 2, 3, 0, 5, 6, 7
+};
+
+static unsigned char irq_bits[] = {
+ 0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11
+};
+
+static unsigned char sb_irq_bits[] = {
+ 0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20,
+ 0x00, 0x08, 0x28, 0x30, 0x38, 0, 0
+};
+
+static unsigned char sb_dma_bits[] = {
+ 0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0
+};
+
+/*
+ * The Address Translation code is used to convert I/O register addresses to
+ * be relative to the given base -register
+ */
+
+int pas_translate_code = 0;
+static int pas_intr_mask;
+static int pas_irq;
+static int pas_sb_base;
+DEFINE_SPINLOCK(pas_lock);
+#ifndef CONFIG_PAS_JOYSTICK
+static bool joystick;
+#else
+static bool joystick = 1;
+#endif
+#ifdef SYMPHONY_PAS
+static bool symphony = 1;
+#else
+static bool symphony;
+#endif
+#ifdef BROKEN_BUS_CLOCK
+static bool broken_bus_clock = 1;
+#else
+static bool broken_bus_clock;
+#endif
+
+static struct address_info cfg;
+static struct address_info cfg2;
+
+char pas_model = 0;
+static char *pas_model_names[] = {
+ "",
+ "Pro AudioSpectrum+",
+ "CDPC",
+ "Pro AudioSpectrum 16",
+ "Pro AudioSpectrum 16D"
+};
+
+/*
+ * pas_read() and pas_write() are equivalents of inb and outb
+ * These routines perform the I/O address translation required
+ * to support other than the default base address
+ */
+
+extern void mix_write(unsigned char data, int ioaddr);
+
+unsigned char pas_read(int ioaddr)
+{
+ return inb(ioaddr + pas_translate_code);
+}
+
+void pas_write(unsigned char data, int ioaddr)
+{
+ outb((data), ioaddr + pas_translate_code);
+}
+
+/******************* Begin of the Interrupt Handler ********************/
+
+static irqreturn_t pasintr(int irq, void *dev_id)
+{
+ int status;
+
+ status = pas_read(0x0B89);
+ pas_write(status, 0x0B89); /* Clear interrupt */
+
+ if (status & 0x08)
+ {
+ pas_pcm_interrupt(status, 1);
+ status &= ~0x08;
+ }
+ if (status & 0x10)
+ {
+ pas_midi_interrupt();
+ status &= ~0x10;
+ }
+ return IRQ_HANDLED;
+}
+
+int pas_set_intr(int mask)
+{
+ if (!mask)
+ return 0;
+
+ pas_intr_mask |= mask;
+
+ pas_write(pas_intr_mask, 0x0B8B);
+ return 0;
+}
+
+int pas_remove_intr(int mask)
+{
+ if (!mask)
+ return 0;
+
+ pas_intr_mask &= ~mask;
+ pas_write(pas_intr_mask, 0x0B8B);
+
+ return 0;
+}
+
+/******************* End of the Interrupt handler **********************/
+
+/******************* Begin of the Initialization Code ******************/
+
+static int __init config_pas_hw(struct address_info *hw_config)
+{
+ char ok = 1;
+ unsigned int_ptrs; /* scsi/sound interrupt pointers */
+
+ pas_irq = hw_config->irq;
+
+ pas_write(0x00, 0x0B8B);
+ pas_write(0x36, 0x138B);
+ pas_write(0x36, 0x1388);
+ pas_write(0, 0x1388);
+ pas_write(0x74, 0x138B);
+ pas_write(0x74, 0x1389);
+ pas_write(0, 0x1389);
+
+ pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A);
+ pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A);
+ pas_write(0x01 | 0x02 | 0x04 | 0x10 /*
+ * |
+ * 0x80
+ */ , 0xB88);
+
+ pas_write(0x80 | (joystick ? 0x40 : 0), 0xF388);
+
+ if (pas_irq < 0 || pas_irq > 15)
+ {
+ printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
+ hw_config->irq=-1;
+ ok = 0;
+ }
+ else
+ {
+ int_ptrs = pas_read(0xF38A);
+ int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq];
+ pas_write(int_ptrs, 0xF38A);
+ if (!irq_bits[pas_irq])
+ {
+ printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
+ hw_config->irq=-1;
+ ok = 0;
+ }
+ else
+ {
+ if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) {
+ printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq);
+ hw_config->irq=-1;
+ ok = 0;
+ }
+ }
+ }
+
+ if (hw_config->dma < 0 || hw_config->dma > 7)
+ {
+ printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
+ hw_config->dma=-1;
+ ok = 0;
+ }
+ else
+ {
+ pas_write(dma_bits[hw_config->dma], 0xF389);
+ if (!dma_bits[hw_config->dma])
+ {
+ printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
+ hw_config->dma=-1;
+ ok = 0;
+ }
+ else
+ {
+ if (sound_alloc_dma(hw_config->dma, "PAS16"))
+ {
+ printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n");
+ hw_config->dma=-1;
+ ok = 0;
+ }
+ }
+ }
+
+ /*
+ * This fixes the timing problems of the PAS due to the Symphony chipset
+ * as per Media Vision. Only define this if your PAS doesn't work correctly.
+ */
+
+ if(symphony)
+ {
+ outb((0x05), 0xa8);
+ outb((0x60), 0xa9);
+ }
+
+ if(broken_bus_clock)
+ pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388);
+ else
+ /*
+ * pas_write(0x01, 0x8388);
+ */
+ pas_write(0x01 | 0x10 | 0x20, 0x8388);
+
+ pas_write(0x18, 0x838A); /* ??? */
+ pas_write(0x20 | 0x01, 0x0B8A); /* Mute off, filter = 17.897 kHz */
+ pas_write(8, 0xBF8A);
+
+ mix_write(0x80 | 5, 0x078B);
+ mix_write(5, 0x078B);
+
+ {
+ struct address_info *sb_config;
+
+ sb_config = &cfg2;
+ if (sb_config->io_base)
+ {
+ unsigned char irq_dma;
+
+ /*
+ * Turn on Sound Blaster compatibility
+ * bit 1 = SB emulation
+ * bit 0 = MPU401 emulation (CDPC only :-( )
+ */
+
+ pas_write(0x02, 0xF788);
+
+ /*
+ * "Emulation address"
+ */
+
+ pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789);
+ pas_sb_base = sb_config->io_base;
+
+ if (!sb_dma_bits[sb_config->dma])
+ printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma);
+
+ if (!sb_irq_bits[sb_config->irq])
+ printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq);
+
+ irq_dma = sb_dma_bits[sb_config->dma] |
+ sb_irq_bits[sb_config->irq];
+
+ pas_write(irq_dma, 0xFB8A);
+ }
+ else
+ pas_write(0x00, 0xF788);
+ }
+
+ if (!ok)
+ printk(KERN_WARNING "PAS16: Driver not enabled\n");
+
+ return ok;
+}
+
+static int __init detect_pas_hw(struct address_info *hw_config)
+{
+ unsigned char board_id, foo;
+
+ /*
+ * WARNING: Setting an option like W:1 or so that disables warm boot reset
+ * of the card will screw up this detect code something fierce. Adding code
+ * to handle this means possibly interfering with other cards on the bus if
+ * you have something on base port 0x388. SO be forewarned.
+ */
+
+ outb((0xBC), 0x9A01); /* Activate first board */
+ outb((hw_config->io_base >> 2), 0x9A01); /* Set base address */
+ pas_translate_code = hw_config->io_base - 0x388;
+ pas_write(1, 0xBF88); /* Select one wait states */
+
+ board_id = pas_read(0x0B8B);
+
+ if (board_id == 0xff)
+ return 0;
+
+ /*
+ * We probably have a PAS-series board, now check for a PAS16-series board
+ * by trying to change the board revision bits. PAS16-series hardware won't
+ * let you do this - the bits are read-only.
+ */
+
+ foo = board_id ^ 0xe0;
+
+ pas_write(foo, 0x0B8B);
+ foo = pas_read(0x0B8B);
+ pas_write(board_id, 0x0B8B);
+
+ if (board_id != foo)
+ return 0;
+
+ pas_model = pas_read(0xFF88);
+
+ return pas_model;
+}
+
+static void __init attach_pas_card(struct address_info *hw_config)
+{
+ pas_irq = hw_config->irq;
+
+ if (detect_pas_hw(hw_config))
+ {
+
+ if ((pas_model = pas_read(0xFF88)))
+ {
+ char temp[100];
+
+ sprintf(temp,
+ "%s rev %d", pas_model_names[(int) pas_model],
+ pas_read(0x2789));
+ conf_printf(temp, hw_config);
+ }
+ if (config_pas_hw(hw_config))
+ {
+ pas_pcm_init(hw_config);
+ pas_midi_init();
+ pas_init_mixer();
+ }
+ }
+}
+
+static inline int __init probe_pas(struct address_info *hw_config)
+{
+ return detect_pas_hw(hw_config);
+}
+
+static void __exit unload_pas(struct address_info *hw_config)
+{
+ extern int pas_audiodev;
+ extern int pas2_mididev;
+
+ if (hw_config->dma>0)
+ sound_free_dma(hw_config->dma);
+ if (hw_config->irq>0)
+ free_irq(hw_config->irq, hw_config);
+
+ if(pas_audiodev!=-1)
+ sound_unload_mixerdev(audio_devs[pas_audiodev]->mixer_dev);
+ if(pas2_mididev!=-1)
+ sound_unload_mididev(pas2_mididev);
+ if(pas_audiodev!=-1)
+ sound_unload_audiodev(pas_audiodev);
+}
+
+static int __initdata io = -1;
+static int __initdata irq = -1;
+static int __initdata dma = -1;
+static int __initdata dma16 = -1; /* Set this for modules that need it */
+
+static int __initdata sb_io = 0;
+static int __initdata sb_irq = -1;
+static int __initdata sb_dma = -1;
+static int __initdata sb_dma16 = -1;
+
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(dma, int, 0);
+module_param(dma16, int, 0);
+
+module_param(sb_io, int, 0);
+module_param(sb_irq, int, 0);
+module_param(sb_dma, int, 0);
+module_param(sb_dma16, int, 0);
+
+module_param(joystick, bool, 0);
+module_param(symphony, bool, 0);
+module_param(broken_bus_clock, bool, 0);
+
+MODULE_LICENSE("GPL");
+
+static int __init init_pas2(void)
+{
+ printk(KERN_INFO "Pro Audio Spectrum driver Copyright (C) by Hannu Savolainen 1993-1996\n");
+
+ cfg.io_base = io;
+ cfg.irq = irq;
+ cfg.dma = dma;
+ cfg.dma2 = dma16;
+
+ cfg2.io_base = sb_io;
+ cfg2.irq = sb_irq;
+ cfg2.dma = sb_dma;
+ cfg2.dma2 = sb_dma16;
+
+ if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
+ printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
+ return -EINVAL;
+ }
+
+ if (!probe_pas(&cfg))
+ return -ENODEV;
+ attach_pas_card(&cfg);
+
+ return 0;
+}
+
+static void __exit cleanup_pas2(void)
+{
+ unload_pas(&cfg);
+}
+
+module_init(init_pas2);
+module_exit(cleanup_pas2);
+
+#ifndef MODULE
+static int __init setup_pas2(char *str)
+{
+ /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, sb_dma2 */
+ int ints[9];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ io = ints[1];
+ irq = ints[2];
+ dma = ints[3];
+ dma16 = ints[4];
+
+ sb_io = ints[5];
+ sb_irq = ints[6];
+ sb_dma = ints[7];
+ sb_dma16 = ints[8];
+
+ return 1;
+}
+
+__setup("pas2=", setup_pas2);
+#endif
generated by cgit (git 2.34.1) at 2024-12-20 07:41:54 +0000