52 lines
948 B
C
52 lines
948 B
C
/*
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* Experimental Intel High-Definition Audio "driver"
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*/
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#include <kernel/module.h>
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#include <kernel/printf.h>
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#include <kernel/pci.h>
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#include <kernel/mod/shell.h>
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struct hda_device {
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uint32_t pci_device;
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};
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static struct hda_device _device;
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static void find_hda(uint32_t device, uint16_t vendorid, uint16_t deviceid, void * extra) {
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struct hda_device * hda = extra;
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if ((vendorid == 0x8086) && (deviceid == 0x2668)) {
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hda->pci_device = device;
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}
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}
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DEFINE_SHELL_FUNCTION(hda_test, "[debug] Intel HDA experiments") {
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if (!_device.pci_device) {
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fprintf(tty, "No HDA device found.\n");
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return 1;
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}
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fprintf(tty, "HDA audio device is at 0x%x.\n", _device.pci_device);
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return 0;
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}
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static int init(void) {
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BIND_SHELL_FUNCTION(hda_test);
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pci_scan(&find_hda, -1, &_device);
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if (!_device.pci_device) {
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return 1;
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}
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return 0;
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}
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static int fini(void) {
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return 0;
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}
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MODULE_DEF(hda, init, fini);
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MODULE_DEPENDS(debugshell);
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