Date: Sat, 25 Mar 2017 10:39:25 +0000 (UTC) From: Ganbold Tsagaankhuu <ganbold@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r315931 - head/sys/arm/allwinner Message-ID: <201703251039.v2PAdPMM030930@repo.freebsd.org>
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Author: ganbold Date: Sat Mar 25 10:39:24 2017 New Revision: 315931 URL: https://svnweb.freebsd.org/changeset/base/315931 Log: Fix and add comments to match selected frequency sample. Add debug printfs when bootverbose is used. No functional changes. Modified: head/sys/arm/allwinner/aw_cir.c Modified: head/sys/arm/allwinner/aw_cir.c ============================================================================== --- head/sys/arm/allwinner/aw_cir.c Sat Mar 25 05:41:34 2017 (r315930) +++ head/sys/arm/allwinner/aw_cir.c Sat Mar 25 10:39:24 2017 (r315931) @@ -89,7 +89,12 @@ __FBSDID("$FreeBSD$"); /* IR Sample Configure Reg */ #define AW_IR_CIR 0x34 -/* Filter Threshold = 8 * 21.3 = ~128us < 200us */ + +/* + * Frequency sample: 23437.5Hz (Cycle: 42.7us) + * Pulse of NEC Remote > 560us + */ +/* Filter Threshold = 8 * 42.7 = ~341us < 500us */ #define AW_IR_RXFILT_VAL (((8) & 0x3f) << 2) /* Idle Threshold = (2 + 1) * 128 * 42.7 = ~16.4ms > 9ms */ #define AW_IR_RXIDLE_VAL (((2) & 0xff) << 8) @@ -317,12 +322,17 @@ aw_ir_intr(void *arg) /* Read RX interrupt status */ val = READ(sc, AW_IR_RXSTA); + if (bootverbose) + device_printf(sc->dev, "RX interrupt status: %x\n", val); /* Clean all pending interrupt statuses */ WRITE(sc, AW_IR_RXSTA, val | AW_IR_RXSTA_CLEARALL); /* When Rx FIFO Data available or Packet end */ if (val & (AW_IR_RXINT_RAI_EN | AW_IR_RXINT_RPEI_EN)) { + if (bootverbose) + device_printf(sc->dev, + "RX FIFO Data available or Packet end\n"); /* Get available message count in RX FIFO */ dcnt = AW_IR_RXSTA_COUNTER(val); /* Read FIFO */
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