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Add Intel AC97

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This commit is contained in:
Jasmine Iwanek
2023-02-05 02:48:11 -05:00
parent c3b832e691
commit 3717f282e1
1 changed files with 116 additions and 0 deletions
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116
src/chipset/intel_ich2.c
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@@ -39,6 +39,7 @@
#include <86box/hdc.h>
#include <86box/hdc_ide.h>
#include <86box/hdc_ide_sff8038i.h>
#include <86box/snd_ac97_intel.h>
#include <86box/intel_ich2_gpio.h>
#include <86box/intel_ich2_trap.h>
#include <86box/mem.h>
@@ -72,6 +73,7 @@ typedef struct intel_ich2_t {
uint8_t pci_conf[7][256];
acpi_t *acpi;
intel_ac97_t *ac97;
intel_ich2_gpio_t *gpio;
intel_ich2_trap_t *trap_device[10];
nvr_t *nvr;
@@ -665,6 +667,64 @@ intel_ich2_write(int func, int addr, uint8_t val, void *priv)
break;
}
}
else if ((func == 5) && !(dev->pci_conf[0][0xf2] & 0x20)) {
intel_ich2_log("Intel ICH2 AC'97: dev->regs[%02x] = %02x\n", addr, val);
switch (addr) {
case 0x04:
dev->pci_conf[func][addr] = val & 5;
break;
case 0x07:
dev->pci_conf[func][addr] &= val & 0x26;
break;
case 0x11:
dev->pci_conf[func][addr] = val;
if (sound_card_current[0] == SOUND_INTERNAL)
intel_ac97_mixer_base(dev->pci_conf[5][4] & 1, dev->pci_conf[5][0x11] << 8, dev->ac97);
break;
case 0x14:
case 0x15:
dev->pci_conf[func][addr] = (addr & 1) ? val : ((val & 0xc0) | 1);
if (sound_card_current[0] == SOUND_INTERNAL)
intel_ac97_base(dev->pci_conf[5][4] & 1, (dev->pci_conf[5][0x15] << 8) | (dev->pci_conf[5][0x14] & 0xc0), dev->ac97);
break;
case 0x3c:
dev->pci_conf[func][addr] = val; /* 86Box doesn't give any capabilities to take the PCI IRQ pin, also */
if (sound_card_current[0] == SOUND_INTERNAL) /* can't use pointers as whatever recieved from there is temporary. */
intel_ac97_set_irq(pci_get_int(0x1f, 2), dev->ac97);
break;
}
} else if ((func == 6) && !(dev->pci_conf[0][0xf2] & 0x40)) {
intel_ich2_log("Intel ICH2 AC'97 Modem: dev->regs[%02x] = %02x\n", addr, val);
switch (addr) {
case 0x04:
dev->pci_conf[func][addr] = val & 5;
break;
case 0x07:
dev->pci_conf[func][addr] &= val & 0x20;
break;
case 0x11:
dev->pci_conf[func][addr] = val;
break;
case 0x14:
case 0x15:
dev->pci_conf[func][addr] = (addr & 1) ? val : ((val & 0x80) | 1);
break;
case 0x3c:
dev->pci_conf[func][addr] = val;
break;
}
}
}
static uint8_t
@@ -691,6 +751,13 @@ intel_ich2_read(int func, int addr, void *priv)
if ((addr >= 0x2c) && (addr <= 0x2f)) /* SMBus shares the same subsystem vendor info as the IDE */
return dev->pci_conf[1][addr];
return dev->pci_conf[func][addr];
} else if ((func == 5) && !(dev->pci_conf[0][0xf2] & 0x20)) {
intel_ich2_log("Intel ICH2 AC'97: dev->regs[%02x] (%02x)\n", addr, dev->pci_conf[func][addr]);
return dev->pci_conf[func][addr];
} else if ((func == 6) && !(dev->pci_conf[0][0xf2] & 0x40)) {
intel_ich2_log("Intel ICH2 AC'97 Modem: dev->regs[%02x] (%02x)\n", addr, dev->pci_conf[func][addr]);
return dev->pci_conf[func][addr];
} else
return 0xff;
@@ -855,6 +922,51 @@ intel_ich2_reset(void *priv)
dev->pci_conf[4][0xc1] = 0x20;
intel_ich2_usb_setup(4, dev);
/* Function 5: AC'97 */
dev->pci_conf[5][0x00] = 0x86;
dev->pci_conf[5][0x01] = 0x80;
dev->pci_conf[5][0x02] = 0x45;
dev->pci_conf[5][0x03] = 0x24;
dev->pci_conf[5][0x06] = 0x80;
dev->pci_conf[5][0x07] = 0x02;
dev->pci_conf[5][0x08] = 0x02;
dev->pci_conf[5][0x0a] = 0x01;
dev->pci_conf[5][0x0b] = 0x03;
dev->pci_conf[5][0x10] = 0x01;
dev->pci_conf[5][0x14] = 0x01;
dev->pci_conf[5][0x3d] = 0x02;
if (sound_card_current[0] == SOUND_INTERNAL) {
intel_ac97_mixer_base(dev->pci_conf[5][4] & 1, dev->pci_conf[5][0x11] << 8, dev->ac97);
intel_ac97_base(dev->pci_conf[5][4] & 1, (dev->pci_conf[5][0x15] << 8) | (dev->pci_conf[5][0x14] & 0xc0), dev->ac97);
}
/* Function 6: AC'97 Modem */
dev->pci_conf[6][0x00] = 0x86;
dev->pci_conf[6][0x01] = 0x80;
dev->pci_conf[6][0x02] = 0x46;
dev->pci_conf[6][0x03] = 0x24;
dev->pci_conf[6][0x06] = 0x80;
dev->pci_conf[6][0x07] = 0x02;
dev->pci_conf[6][0x08] = 0x02;
dev->pci_conf[6][0x0a] = 0x03;
dev->pci_conf[6][0x0b] = 0x07;
dev->pci_conf[6][0x10] = 0x01;
dev->pci_conf[6][0x14] = 0x01;
dev->pci_conf[6][0x3d] = 0x02;
}
static void
@@ -878,6 +990,10 @@ intel_ich2_init(const device_t *info)
dev->acpi = device_add(&acpi_intel_ich2_device);
acpi_set_slot(dev->acpi, slot);
/* AC'97 Audio */
if (sound_card_current[0] == SOUND_INTERNAL)
dev->ac97 = device_add(&intel_ac97_device);
/* DMA */
dma_alias_set_piix();
dma_lpc_init();