Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932545Ab1DMQIf (ORCPT ); Wed, 13 Apr 2011 12:08:35 -0400 Received: from kroah.org ([198.145.64.141]:54290 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757832Ab1DMPzW (ORCPT ); Wed, 13 Apr 2011 11:55:22 -0400 X-Mailbox-Line: From gregkh@clark.kroah.org Wed Apr 13 08:51:45 2011 Message-Id: <20110413155145.435461624@clark.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 13 Apr 2011 08:50:47 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Clemens Ladisch , Takashi Iwai Subject: [23/74] ALSA: ens1371: fix Creative Ectiva support In-Reply-To: <20110413155406.GA22568@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3551 Lines: 99 2.6.32-longterm review patch. If anyone has any objections, please let us know. ------------------ From: Clemens Ladisch commit 6ebb8a4a43e34f999ab36f27f972f3cd751cda4f upstream. To make the EV1938 chip work, add a magic bit and an extra delay. Signed-off-by: Clemens Ladisch Tested-by: Tino Schmidt Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/ens1370.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) --- a/sound/pci/ens1370.c +++ b/sound/pci/ens1370.c @@ -229,6 +229,7 @@ MODULE_PARM_DESC(lineio, "Line In to Rea #define ES_REG_1371_CODEC 0x14 /* W/R: Codec Read/Write register address */ #define ES_1371_CODEC_RDY (1<<31) /* codec ready */ #define ES_1371_CODEC_WIP (1<<30) /* codec register access in progress */ +#define EV_1938_CODEC_MAGIC (1<<26) #define ES_1371_CODEC_PIRD (1<<23) /* codec read/write select register */ #define ES_1371_CODEC_WRITE(a,d) ((((a)&0x7f)<<16)|(((d)&0xffff)<<0)) #define ES_1371_CODEC_READS(a) ((((a)&0x7f)<<16)|ES_1371_CODEC_PIRD) @@ -603,12 +604,18 @@ static void snd_es1370_codec_write(struc #ifdef CHIP1371 +static inline bool is_ev1938(struct ensoniq *ensoniq) +{ + return ensoniq->pci->device == 0x8938; +} + static void snd_es1371_codec_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct ensoniq *ensoniq = ac97->private_data; - unsigned int t, x; + unsigned int t, x, flag; + flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0; mutex_lock(&ensoniq->src_mutex); for (t = 0; t < POLL_COUNT; t++) { if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP)) { @@ -630,7 +637,8 @@ static void snd_es1371_codec_write(struc 0x00010000) break; } - outl(ES_1371_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1371_CODEC)); + outl(ES_1371_CODEC_WRITE(reg, val) | flag, + ES_REG(ensoniq, 1371_CODEC)); /* restore SRC reg */ snd_es1371_wait_src_ready(ensoniq); outl(x, ES_REG(ensoniq, 1371_SMPRATE)); @@ -647,8 +655,9 @@ static unsigned short snd_es1371_codec_r unsigned short reg) { struct ensoniq *ensoniq = ac97->private_data; - unsigned int t, x, fail = 0; + unsigned int t, x, flag, fail = 0; + flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0; __again: mutex_lock(&ensoniq->src_mutex); for (t = 0; t < POLL_COUNT; t++) { @@ -671,7 +680,8 @@ static unsigned short snd_es1371_codec_r 0x00010000) break; } - outl(ES_1371_CODEC_READS(reg), ES_REG(ensoniq, 1371_CODEC)); + outl(ES_1371_CODEC_READS(reg) | flag, + ES_REG(ensoniq, 1371_CODEC)); /* restore SRC reg */ snd_es1371_wait_src_ready(ensoniq); outl(x, ES_REG(ensoniq, 1371_SMPRATE)); @@ -683,6 +693,11 @@ static unsigned short snd_es1371_codec_r /* now wait for the stinkin' data (RDY) */ for (t = 0; t < POLL_COUNT; t++) { if ((x = inl(ES_REG(ensoniq, 1371_CODEC))) & ES_1371_CODEC_RDY) { + if (is_ev1938(ensoniq)) { + for (t = 0; t < 100; t++) + inl(ES_REG(ensoniq, CONTROL)); + x = inl(ES_REG(ensoniq, 1371_CODEC)); + } mutex_unlock(&ensoniq->src_mutex); return ES_1371_CODEC_READ(x); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/