Date: Mon, 27 Sep 2010 15:58:20 +0000 (UTC) From: Bernd Walter <ticso@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r213203 - head/sys/arm/at91 Message-ID: <201009271558.o8RFwKwt041218@svn.freebsd.org>
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Author: ticso Date: Mon Sep 27 15:58:19 2010 New Revision: 213203 URL: http://svn.freebsd.org/changeset/base/213203 Log: The TWI controller automatically stops if we don't fill up with new data in time. Modified: head/sys/arm/at91/at91_twi.c Modified: head/sys/arm/at91/at91_twi.c ============================================================================== --- head/sys/arm/at91/at91_twi.c Mon Sep 27 15:55:39 2010 (r213202) +++ head/sys/arm/at91/at91_twi.c Mon Sep 27 15:58:19 2010 (r213203) @@ -338,7 +338,7 @@ at91_twi_transfer(device_t dev, struct i err = EINVAL; goto out; } - if (len == 1) + if (len == 1 && msgs[i].flags & IIC_M_RD) WR4(sc, TWI_CR, TWI_CR_START | TWI_CR_STOP); else WR4(sc, TWI_CR, TWI_CR_START); @@ -358,8 +358,6 @@ at91_twi_transfer(device_t dev, struct i } } else { while (len--) { - if (len == 0 && msgs[i].len != 1) - WR4(sc, TWI_CR, TWI_CR_STOP); if ((err = at91_twi_wait(sc, TWI_SR_TXRDY))) goto out; WR4(sc, TWI_THR, *buf++);
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