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[209.132.180.67]) by mx.google.com with ESMTP id b5si32117983pfc.53.2017.06.05.16.28.28; Mon, 05 Jun 2017 16:28:29 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751542AbdFEX2L (ORCPT + 25 others); Mon, 5 Jun 2017 19:28:11 -0400 Received: from conuserg-10.nifty.com ([210.131.2.77]:32164 "EHLO conuserg-10.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751291AbdFEXZS (ORCPT ); Mon, 5 Jun 2017 19:25:18 -0400 Received: from grover.sesame (FL1-118-110-19-204.osk.mesh.ad.jp [118.110.19.204]) (authenticated) by conuserg-10.nifty.com with ESMTP id v55NMD5c004412; Tue, 6 Jun 2017 08:22:29 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com v55NMD5c004412 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1496704950; bh=UcCTgpsz3ibt3hpu2icA6vfxYbU5jncjOdsMV8qp8Po=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B4IWhR8exNiCBG0NETHgFjGZ/ycU2lTBuhQY04PZ/tZu0qB8a43wmCKEg8nkQdEmt f7vBdwQ70uN1SGbRfAcb1B+ZDPYBQZRjl/Rxu/CHmhHtT1QLaaQoiP5IDAOc5GWI4f +q097HZLQTx+TYrTBLLIfC2wDRGnLa2ooZ58CJ/2X7l1gnRETTbR0mkjDkeieuzwgf ihw9kcl1jXbBnMERDVGSwaEUgTHnMoJh34itBYl8HMlb4+9M8j28EiD7KMhAQSoeWv xQefonetsw/8ABxwI+JBx/MRuR14jrjniN/GkGzFi/Dgao3y6sUqXom3KA3PVeT1mt +dW4ZlnHKFZwA== X-Nifty-SrcIP: [118.110.19.204] From: Masahiro Yamada To: linux-mtd@lists.infradead.org Cc: Enrico Jorns , Artem Bityutskiy , Dinh Nguyen , Boris Brezillon , Marek Vasut , Graham Moore , David Woodhouse , Masami Hiramatsu , Chuanxiao Dong , Jassi Brar , Masahiro Yamada , Cyrille Pitchen , linux-kernel@vger.kernel.org, Brian Norris , Richard Weinberger Subject: [PATCH v4 02/23] mtd: nand: denali: use BIT() and GENMASK() for register macros Date: Tue, 6 Jun 2017 08:21:41 +0900 Message-Id: <1496704922-12261-3-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1496704922-12261-1-git-send-email-yamada.masahiro@socionext.com> References: <1496704922-12261-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use BIT() and GENMASK() for register field macros. This will make it easier to compare the macros with the register description in the Denali User's Guide. Signed-off-by: Masahiro Yamada --- Changes in v4: None Changes in v3: None Changes in v2: - Newly added drivers/mtd/nand/denali.h | 244 ++++++++++++++++++++++------------------------ 1 file changed, 119 insertions(+), 125 deletions(-) -- 2.7.4 diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index ec00485..3783353 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -24,273 +24,267 @@ #include #define DEVICE_RESET 0x0 -#define DEVICE_RESET__BANK0 0x0001 -#define DEVICE_RESET__BANK1 0x0002 -#define DEVICE_RESET__BANK2 0x0004 -#define DEVICE_RESET__BANK3 0x0008 +#define DEVICE_RESET__BANK(bank) BIT(bank) #define TRANSFER_SPARE_REG 0x10 -#define TRANSFER_SPARE_REG__FLAG 0x0001 +#define TRANSFER_SPARE_REG__FLAG BIT(0) #define LOAD_WAIT_CNT 0x20 -#define LOAD_WAIT_CNT__VALUE 0xffff +#define LOAD_WAIT_CNT__VALUE GENMASK(15, 0) #define PROGRAM_WAIT_CNT 0x30 -#define PROGRAM_WAIT_CNT__VALUE 0xffff +#define PROGRAM_WAIT_CNT__VALUE GENMASK(15, 0) #define ERASE_WAIT_CNT 0x40 -#define ERASE_WAIT_CNT__VALUE 0xffff +#define ERASE_WAIT_CNT__VALUE GENMASK(15, 0) #define INT_MON_CYCCNT 0x50 -#define INT_MON_CYCCNT__VALUE 0xffff +#define INT_MON_CYCCNT__VALUE GENMASK(15, 0) #define RB_PIN_ENABLED 0x60 -#define RB_PIN_ENABLED__BANK0 0x0001 -#define RB_PIN_ENABLED__BANK1 0x0002 -#define RB_PIN_ENABLED__BANK2 0x0004 -#define RB_PIN_ENABLED__BANK3 0x0008 +#define RB_PIN_ENABLED__BANK(bank) BIT(bank) #define MULTIPLANE_OPERATION 0x70 -#define MULTIPLANE_OPERATION__FLAG 0x0001 +#define MULTIPLANE_OPERATION__FLAG BIT(0) #define MULTIPLANE_READ_ENABLE 0x80 -#define MULTIPLANE_READ_ENABLE__FLAG 0x0001 +#define MULTIPLANE_READ_ENABLE__FLAG BIT(0) #define COPYBACK_DISABLE 0x90 -#define COPYBACK_DISABLE__FLAG 0x0001 +#define COPYBACK_DISABLE__FLAG BIT(0) #define CACHE_WRITE_ENABLE 0xa0 -#define CACHE_WRITE_ENABLE__FLAG 0x0001 +#define CACHE_WRITE_ENABLE__FLAG BIT(0) #define CACHE_READ_ENABLE 0xb0 -#define CACHE_READ_ENABLE__FLAG 0x0001 +#define CACHE_READ_ENABLE__FLAG BIT(0) #define PREFETCH_MODE 0xc0 -#define PREFETCH_MODE__PREFETCH_EN 0x0001 -#define PREFETCH_MODE__PREFETCH_BURST_LENGTH 0xfff0 +#define PREFETCH_MODE__PREFETCH_EN BIT(0) +#define PREFETCH_MODE__PREFETCH_BURST_LENGTH GENMASK(15, 4) #define CHIP_ENABLE_DONT_CARE 0xd0 -#define CHIP_EN_DONT_CARE__FLAG 0x01 +#define CHIP_EN_DONT_CARE__FLAG BIT(0) #define ECC_ENABLE 0xe0 -#define ECC_ENABLE__FLAG 0x0001 +#define ECC_ENABLE__FLAG BIT(0) #define GLOBAL_INT_ENABLE 0xf0 -#define GLOBAL_INT_EN_FLAG 0x01 +#define GLOBAL_INT_EN_FLAG BIT(0) #define WE_2_RE 0x100 -#define WE_2_RE__VALUE 0x003f +#define WE_2_RE__VALUE GENMASK(5, 0) #define ADDR_2_DATA 0x110 -#define ADDR_2_DATA__VALUE 0x003f +#define ADDR_2_DATA__VALUE GENMASK(5, 0) #define RE_2_WE 0x120 -#define RE_2_WE__VALUE 0x003f +#define RE_2_WE__VALUE GENMASK(5, 0) #define ACC_CLKS 0x130 -#define ACC_CLKS__VALUE 0x000f +#define ACC_CLKS__VALUE GENMASK(3, 0) #define NUMBER_OF_PLANES 0x140 -#define NUMBER_OF_PLANES__VALUE 0x0007 +#define NUMBER_OF_PLANES__VALUE GENMASK(2, 0) #define PAGES_PER_BLOCK 0x150 -#define PAGES_PER_BLOCK__VALUE 0xffff +#define PAGES_PER_BLOCK__VALUE GENMASK(15, 0) #define DEVICE_WIDTH 0x160 -#define DEVICE_WIDTH__VALUE 0x0003 +#define DEVICE_WIDTH__VALUE GENMASK(1, 0) #define DEVICE_MAIN_AREA_SIZE 0x170 -#define DEVICE_MAIN_AREA_SIZE__VALUE 0xffff +#define DEVICE_MAIN_AREA_SIZE__VALUE GENMASK(15, 0) #define DEVICE_SPARE_AREA_SIZE 0x180 -#define DEVICE_SPARE_AREA_SIZE__VALUE 0xffff +#define DEVICE_SPARE_AREA_SIZE__VALUE GENMASK(15, 0) #define TWO_ROW_ADDR_CYCLES 0x190 -#define TWO_ROW_ADDR_CYCLES__FLAG 0x0001 +#define TWO_ROW_ADDR_CYCLES__FLAG BIT(0) #define MULTIPLANE_ADDR_RESTRICT 0x1a0 -#define MULTIPLANE_ADDR_RESTRICT__FLAG 0x0001 +#define MULTIPLANE_ADDR_RESTRICT__FLAG BIT(0) #define ECC_CORRECTION 0x1b0 -#define ECC_CORRECTION__VALUE 0x001f +#define ECC_CORRECTION__VALUE GENMASK(4, 0) #define READ_MODE 0x1c0 -#define READ_MODE__VALUE 0x000f +#define READ_MODE__VALUE GENMASK(3, 0) #define WRITE_MODE 0x1d0 -#define WRITE_MODE__VALUE 0x000f +#define WRITE_MODE__VALUE GENMASK(3, 0) #define COPYBACK_MODE 0x1e0 -#define COPYBACK_MODE__VALUE 0x000f +#define COPYBACK_MODE__VALUE GENMASK(3, 0) #define RDWR_EN_LO_CNT 0x1f0 -#define RDWR_EN_LO_CNT__VALUE 0x001f +#define RDWR_EN_LO_CNT__VALUE GENMASK(4, 0) #define RDWR_EN_HI_CNT 0x200 -#define RDWR_EN_HI_CNT__VALUE 0x001f +#define RDWR_EN_HI_CNT__VALUE GENMASK(4, 0) #define MAX_RD_DELAY 0x210 -#define MAX_RD_DELAY__VALUE 0x000f +#define MAX_RD_DELAY__VALUE GENMASK(3, 0) #define CS_SETUP_CNT 0x220 -#define CS_SETUP_CNT__VALUE 0x001f +#define CS_SETUP_CNT__VALUE GENMASK(4, 0) #define SPARE_AREA_SKIP_BYTES 0x230 -#define SPARE_AREA_SKIP_BYTES__VALUE 0x003f +#define SPARE_AREA_SKIP_BYTES__VALUE GENMASK(5, 0) #define SPARE_AREA_MARKER 0x240 -#define SPARE_AREA_MARKER__VALUE 0xffff +#define SPARE_AREA_MARKER__VALUE GENMASK(15, 0) #define DEVICES_CONNECTED 0x250 -#define DEVICES_CONNECTED__VALUE 0x0007 +#define DEVICES_CONNECTED__VALUE GENMASK(2, 0) #define DIE_MASK 0x260 -#define DIE_MASK__VALUE 0x00ff +#define DIE_MASK__VALUE GENMASK(7, 0) #define FIRST_BLOCK_OF_NEXT_PLANE 0x270 -#define FIRST_BLOCK_OF_NEXT_PLANE__VALUE 0xffff +#define FIRST_BLOCK_OF_NEXT_PLANE__VALUE GENMASK(15, 0) #define WRITE_PROTECT 0x280 -#define WRITE_PROTECT__FLAG 0x0001 +#define WRITE_PROTECT__FLAG BIT(0) #define RE_2_RE 0x290 -#define RE_2_RE__VALUE 0x003f +#define RE_2_RE__VALUE GENMASK(5, 0) #define MANUFACTURER_ID 0x300 -#define MANUFACTURER_ID__VALUE 0x00ff +#define MANUFACTURER_ID__VALUE GENMASK(7, 0) #define DEVICE_ID 0x310 -#define DEVICE_ID__VALUE 0x00ff +#define DEVICE_ID__VALUE GENMASK(7, 0) #define DEVICE_PARAM_0 0x320 -#define DEVICE_PARAM_0__VALUE 0x00ff +#define DEVICE_PARAM_0__VALUE GENMASK(7, 0) #define DEVICE_PARAM_1 0x330 -#define DEVICE_PARAM_1__VALUE 0x00ff +#define DEVICE_PARAM_1__VALUE GENMASK(7, 0) #define DEVICE_PARAM_2 0x340 -#define DEVICE_PARAM_2__VALUE 0x00ff +#define DEVICE_PARAM_2__VALUE GENMASK(7, 0) #define LOGICAL_PAGE_DATA_SIZE 0x350 -#define LOGICAL_PAGE_DATA_SIZE__VALUE 0xffff +#define LOGICAL_PAGE_DATA_SIZE__VALUE GENMASK(15, 0) #define LOGICAL_PAGE_SPARE_SIZE 0x360 -#define LOGICAL_PAGE_SPARE_SIZE__VALUE 0xffff +#define LOGICAL_PAGE_SPARE_SIZE__VALUE GENMASK(15, 0) #define REVISION 0x370 -#define REVISION__VALUE 0xffff +#define REVISION__VALUE GENMASK(15, 0) #define ONFI_DEVICE_FEATURES 0x380 -#define ONFI_DEVICE_FEATURES__VALUE 0x003f +#define ONFI_DEVICE_FEATURES__VALUE GENMASK(5, 0) #define ONFI_OPTIONAL_COMMANDS 0x390 -#define ONFI_OPTIONAL_COMMANDS__VALUE 0x003f +#define ONFI_OPTIONAL_COMMANDS__VALUE GENMASK(5, 0) #define ONFI_TIMING_MODE 0x3a0 -#define ONFI_TIMING_MODE__VALUE 0x003f +#define ONFI_TIMING_MODE__VALUE GENMASK(5, 0) #define ONFI_PGM_CACHE_TIMING_MODE 0x3b0 -#define ONFI_PGM_CACHE_TIMING_MODE__VALUE 0x003f +#define ONFI_PGM_CACHE_TIMING_MODE__VALUE GENMASK(5, 0) #define ONFI_DEVICE_NO_OF_LUNS 0x3c0 -#define ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS 0x00ff -#define ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE 0x0100 +#define ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS GENMASK(7, 0) +#define ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE BIT(8) #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L 0x3d0 -#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE 0xffff +#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE GENMASK(15, 0) #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U 0x3e0 -#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE 0xffff - -#define FEATURES 0x3f0 -#define FEATURES__N_BANKS 0x0003 -#define FEATURES__ECC_MAX_ERR 0x003c -#define FEATURES__DMA 0x0040 -#define FEATURES__CMD_DMA 0x0080 -#define FEATURES__PARTITION 0x0100 -#define FEATURES__XDMA_SIDEBAND 0x0200 -#define FEATURES__GPREG 0x0400 -#define FEATURES__INDEX_ADDR 0x0800 +#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE GENMASK(15, 0) + +#define FEATURES 0x3f0 +#define FEATURES__N_BANKS GENMASK(1, 0) +#define FEATURES__ECC_MAX_ERR GENMASK(5, 2) +#define FEATURES__DMA BIT(6) +#define FEATURES__CMD_DMA BIT(7) +#define FEATURES__PARTITION BIT(8) +#define FEATURES__XDMA_SIDEBAND BIT(9) +#define FEATURES__GPREG BIT(10) +#define FEATURES__INDEX_ADDR BIT(11) #define TRANSFER_MODE 0x400 -#define TRANSFER_MODE__VALUE 0x0003 +#define TRANSFER_MODE__VALUE GENMASK(1, 0) -#define INTR_STATUS(__bank) (0x410 + ((__bank) * 0x50)) -#define INTR_EN(__bank) (0x420 + ((__bank) * 0x50)) +#define INTR_STATUS(bank) (0x410 + (bank) * 0x50) +#define INTR_EN(bank) (0x420 + (bank) * 0x50) /* bit[1:0] is used differently depending on IP version */ -#define INTR__ECC_UNCOR_ERR 0x0001 /* new IP */ -#define INTR__ECC_TRANSACTION_DONE 0x0001 /* old IP */ -#define INTR__ECC_ERR 0x0002 /* old IP */ -#define INTR__DMA_CMD_COMP 0x0004 -#define INTR__TIME_OUT 0x0008 -#define INTR__PROGRAM_FAIL 0x0010 -#define INTR__ERASE_FAIL 0x0020 -#define INTR__LOAD_COMP 0x0040 -#define INTR__PROGRAM_COMP 0x0080 -#define INTR__ERASE_COMP 0x0100 -#define INTR__PIPE_CPYBCK_CMD_COMP 0x0200 -#define INTR__LOCKED_BLK 0x0400 -#define INTR__UNSUP_CMD 0x0800 -#define INTR__INT_ACT 0x1000 -#define INTR__RST_COMP 0x2000 -#define INTR__PIPE_CMD_ERR 0x4000 -#define INTR__PAGE_XFER_INC 0x8000 - -#define PAGE_CNT(__bank) (0x430 + ((__bank) * 0x50)) -#define ERR_PAGE_ADDR(__bank) (0x440 + ((__bank) * 0x50)) -#define ERR_BLOCK_ADDR(__bank) (0x450 + ((__bank) * 0x50)) +#define INTR__ECC_UNCOR_ERR BIT(0) /* new IP */ +#define INTR__ECC_TRANSACTION_DONE BIT(0) /* old IP */ +#define INTR__ECC_ERR BIT(1) /* old IP */ +#define INTR__DMA_CMD_COMP BIT(2) +#define INTR__TIME_OUT BIT(3) +#define INTR__PROGRAM_FAIL BIT(4) +#define INTR__ERASE_FAIL BIT(5) +#define INTR__LOAD_COMP BIT(6) +#define INTR__PROGRAM_COMP BIT(7) +#define INTR__ERASE_COMP BIT(8) +#define INTR__PIPE_CPYBCK_CMD_COMP BIT(9) +#define INTR__LOCKED_BLK BIT(10) +#define INTR__UNSUP_CMD BIT(11) +#define INTR__INT_ACT BIT(12) +#define INTR__RST_COMP BIT(13) +#define INTR__PIPE_CMD_ERR BIT(14) +#define INTR__PAGE_XFER_INC BIT(15) + +#define PAGE_CNT(bank) (0x430 + (bank) * 0x50) +#define ERR_PAGE_ADDR(bank) (0x440 + (bank) * 0x50) +#define ERR_BLOCK_ADDR(bank) (0x450 + (bank) * 0x50) #define ECC_THRESHOLD 0x600 -#define ECC_THRESHOLD__VALUE 0x03ff +#define ECC_THRESHOLD__VALUE GENMASK(9, 0) #define ECC_ERROR_BLOCK_ADDRESS 0x610 -#define ECC_ERROR_BLOCK_ADDRESS__VALUE 0xffff +#define ECC_ERROR_BLOCK_ADDRESS__VALUE GENMASK(15, 0) #define ECC_ERROR_PAGE_ADDRESS 0x620 -#define ECC_ERROR_PAGE_ADDRESS__VALUE 0x0fff -#define ECC_ERROR_PAGE_ADDRESS__BANK 0xf000 +#define ECC_ERROR_PAGE_ADDRESS__VALUE GENMASK(11, 0) +#define ECC_ERROR_PAGE_ADDRESS__BANK GENMASK(15, 12) #define ECC_ERROR_ADDRESS 0x630 -#define ECC_ERROR_ADDRESS__OFFSET 0x0fff -#define ECC_ERROR_ADDRESS__SECTOR_NR 0xf000 +#define ECC_ERROR_ADDRESS__OFFSET GENMASK(11, 0) +#define ECC_ERROR_ADDRESS__SECTOR_NR GENMASK(15, 12) #define ERR_CORRECTION_INFO 0x640 -#define ERR_CORRECTION_INFO__BYTEMASK 0x00ff -#define ERR_CORRECTION_INFO__DEVICE_NR 0x0f00 -#define ERR_CORRECTION_INFO__ERROR_TYPE 0x4000 -#define ERR_CORRECTION_INFO__LAST_ERR_INFO 0x8000 +#define ERR_CORRECTION_INFO__BYTEMASK GENMASK(7, 0) +#define ERR_CORRECTION_INFO__DEVICE_NR GENMASK(11, 8) +#define ERR_CORRECTION_INFO__ERROR_TYPE BIT(14) +#define ERR_CORRECTION_INFO__LAST_ERR_INFO BIT(15) #define ECC_COR_INFO(bank) (0x650 + (bank) / 2 * 0x10) #define ECC_COR_INFO__SHIFT(bank) ((bank) % 2 * 8) -#define ECC_COR_INFO__MAX_ERRORS 0x007f -#define ECC_COR_INFO__UNCOR_ERR 0x0080 +#define ECC_COR_INFO__MAX_ERRORS GENMASK(6, 0) +#define ECC_COR_INFO__UNCOR_ERR BIT(7) #define DMA_ENABLE 0x700 -#define DMA_ENABLE__FLAG 0x0001 +#define DMA_ENABLE__FLAG BIT(0) #define IGNORE_ECC_DONE 0x710 -#define IGNORE_ECC_DONE__FLAG 0x0001 +#define IGNORE_ECC_DONE__FLAG BIT(0) #define DMA_INTR 0x720 #define DMA_INTR_EN 0x730 -#define DMA_INTR__TARGET_ERROR 0x0001 -#define DMA_INTR__DESC_COMP_CHANNEL0 0x0002 -#define DMA_INTR__DESC_COMP_CHANNEL1 0x0004 -#define DMA_INTR__DESC_COMP_CHANNEL2 0x0008 -#define DMA_INTR__DESC_COMP_CHANNEL3 0x0010 -#define DMA_INTR__MEMCOPY_DESC_COMP 0x0020 +#define DMA_INTR__TARGET_ERROR BIT(0) +#define DMA_INTR__DESC_COMP_CHANNEL0 BIT(1) +#define DMA_INTR__DESC_COMP_CHANNEL1 BIT(2) +#define DMA_INTR__DESC_COMP_CHANNEL2 BIT(3) +#define DMA_INTR__DESC_COMP_CHANNEL3 BIT(4) +#define DMA_INTR__MEMCOPY_DESC_COMP BIT(5) #define TARGET_ERR_ADDR_LO 0x740 -#define TARGET_ERR_ADDR_LO__VALUE 0xffff +#define TARGET_ERR_ADDR_LO__VALUE GENMASK(15, 0) #define TARGET_ERR_ADDR_HI 0x750 -#define TARGET_ERR_ADDR_HI__VALUE 0xffff +#define TARGET_ERR_ADDR_HI__VALUE GENMASK(15, 0) #define CHNL_ACTIVE 0x760 -#define CHNL_ACTIVE__CHANNEL0 0x0001 -#define CHNL_ACTIVE__CHANNEL1 0x0002 -#define CHNL_ACTIVE__CHANNEL2 0x0004 -#define CHNL_ACTIVE__CHANNEL3 0x0008 +#define CHNL_ACTIVE__CHANNEL0 BIT(0) +#define CHNL_ACTIVE__CHANNEL1 BIT(1) +#define CHNL_ACTIVE__CHANNEL2 BIT(2) +#define CHNL_ACTIVE__CHANNEL3 BIT(3) #define FAIL 1 /*failed flag*/ #define PASS 0 /*success flag*/