Date: Sun, 28 Sep 1997 22:08:44 -0700 (PDT) From: <nsayer@quack.kfu.com> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4650: Cirrus Logic pcic chips need audio bit & LPDM bit set. Message-ID: <199709290508.WAA09986@icarus.kfu.com> Resent-Message-ID: <199709290510.WAA16935@hub.freebsd.org>
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>Number: 4650
>Category: kern
>Synopsis: Cirrus Logic pcic chips need audio bit & LPDM bit set
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: support
>Submitter-Id: current-users
>Arrival-Date: Sun Sep 28 22:10:00 PDT 1997
>Last-Modified:
>Originator: Nick Sayer
>Organization:
>Release: FreeBSD 2.2.2-RELEASE i386
>Environment:
Laptops (or desktops) with Cirrus Logic PD672x chipsets.
>Description:
PCMCIA modem cards send the speaker audio (dialing noises) to the
host to be sent to the speaker. Cirrus Logic PCIC chips have a
bit to enable or disable this, and it is disabled by default.
There is also a Low Power Dynamic Mode bit (this one is one per
chip rather than one per slot, but it doesn't hurt to set it per
slot - extras are ignored) that the docco claims will reduce PCIC
power consumption by 30% or so. I have seen no ill effects from
turning this bit on.
>How-To-Repeat:
>Fix:
*** pcic.c.orig Sun Jul 6 09:11:53 1997
--- pcic.c Sun Jul 6 10:19:03 1997
***************
*** 949,954 ****
--- 949,961 ----
printf("pcic: controller irq %d\n", pcic_irq);
}
#endif /* PCIC_NO_IRQ */
+ #ifndef NOCIRRUSHACK
+ if (sp->controller == PCIC_PD672X)
+ {
+ setb (sp, PCIC_MISC1, PCIC_SPKR_EN);
+ setb (sp, PCIC_MISC2, PCIC_LPDM_EN);
+ }
+ #endif
/*
* Check for a card in this slot.
*/
***************
*** 1331,1334 ****
--- 1338,1348 ----
if (pcic_irq > 0)
sp->putb(sp, PCIC_STAT_INT, (pcic_irq << 4) | 0xF);
+ #ifndef NOCIRRUSHACK
+ if (sp->controller == PCIC_PD672X)
+ {
+ setb (sp, PCIC_MISC1, PCIC_SPKR_EN);
+ setb (sp, PCIC_MISC2, PCIC_LPDM_EN);
+ }
+ #endif
}
*** i82365.h.orig Sun Jul 6 09:11:52 1997
--- i82365.h Sun Jul 6 09:15:04 1997
***************
*** 84,90 ****
--- 84,92 ----
#define PCIC_IO1 0x0c /* I/O Address 1 */
#define PCIC_MEMBASE 0x10 /* Base of memory window registers */
#define PCIC_CDGC 0x16 /* Card Detect and General Control */
+ #define PCIC_MISC1 0x16 /* PD672x: Misc control register 1 per slot */
#define PCIC_GLO_CTRL 0x1e /* Global Control Register */
+ #define PCIC_MISC2 0x1e /* PD672x: Misc control register 2 per chip */
#define PCIC_TIME_SETUP0 0x3a
#define PCIC_TIME_CMD0 0x3b
***************
*** 205,210 ****
--- 207,215 ----
#define PCIC_CDRES_EN 0x10 /* card detect resume enable */
#define PCIC_SW_CD_INT 0x20 /* s/w card detect interrupt */
+ /* For Misc. Control Register 1 */
+ #define PCIC_SPKR_EN 0x10 /* Cirrus PD672x: speaker enable */
+
/* For Global Control register (PCIC_GLO_CTRL) */
#define PCIC_PWR_DOWN 0x01 /* power down */
#define PCIC_LVL_MODE 0x02 /* level mode interrupt enable */
***************
*** 212,217 ****
--- 217,224 ----
#define PCIC_IRQ0_LEVEL 0x08 /* irq 14 pulse mode enable */
#define PCIC_IRQ1_LEVEL 0x10
+ /* For Misc. Control Register 2 */
+ #define PCIC_LPDM_EN 0x02 /* Cirrus PD672x: low power dynamic mode */
/*
* Mask of allowable interrupts.
* Ints are 3,4,5,7,9,10,11,12,14,15
>Audit-Trail:
>Unformatted:
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