sound/pci/azt3328.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5 /* "PU" == "power-up value", as tested on PCI168 PCI rev. 10
41   /* write back to flags in case flags are set, in order to ACK IRQ in handler
43    * sometimes in this case it just writes 0xffff to globally ACK all IRQs
46   #define IRQ_SOMETHING			0x0001 /* something & ACK */
47   #define IRQ_FINISHED_DMABUF_1		0x0002 /* 1st dmabuf finished & ACK */
48   #define IRQ_FINISHED_DMABUF_2		0x0004 /* 2nd dmabuf finished & ACK */
85 …REQ_SUSPECTED_66200	0x06 | SOUNDFORMAT_XTAL2 /* 66200 (13240 * 5); 64000 may have been nicer :-\ */
111 #define IDX_IO_TIMER_VALUE	0x60 /* found this timer area by pure luck :-) */
122   /* some IRQ bit in here might also be used to signal a power-management timer
150    * in case playback is active? Or is this driver-induced?
178 	 * PC activity such as switching windows (PCI traffic??
179 	 * --> FIFO/timing settings???) */
186 #define IDX_IO_6CH		0x6C	/* unknown; fully read-writable */
253 	 * --> reserved bits? */
259    * 00 --> standard frequency
260    * 10 --> 1/2
261    * 01 --> 1/20
262    * 11 --> 1/200: */
285  * (especially since register 0x04 has a "non-empty" value 0xfe) */
328 …#define MIXER_ADVCTL2_LPBK		0x0080 /* Loopback mode -- Win driver: "WaveOut3DBypass"? mutes WaveOu…
329   #define MIXER_ADVCTL2_MS		0x0100 /* Mic Select 0=Mic1, 1=Mic2 -- Win driver: "ModemOutSelect"?? */