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Subject: [media] smiapp: Define macros for obtaining properties of register definitions Author: Sakari Ailus <[email protected]> Date: Thu Apr 10 10:08:59 2014 -0300 The register address, width and flags are encoded as a 32-bit value. Add macros for obtaining these separately. Use the macros in register access functions. Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/i2c/smiapp/smiapp-regs.c | 13 +++++++------ drivers/media/i2c/smiapp/smiapp-regs.h | 4 ++++ 2 files changed, 11 insertions(+), 6 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=f5d65070d49f707a06bf00c147f02848659a6a0b diff --git a/drivers/media/i2c/smiapp/smiapp-regs.c b/drivers/media/i2c/smiapp/smiapp-regs.c index eb5146a..a209800 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.c +++ b/drivers/media/i2c/smiapp/smiapp-regs.c @@ -165,7 +165,7 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val, bool only8) { struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int len = (u8)(reg >> 16); + u8 len = SMIAPP_REG_WIDTH(reg); int rval; if (len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT @@ -173,9 +173,10 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val, return -EINVAL; if (len == SMIAPP_REG_8BIT || !only8) - rval = ____smiapp_read(sensor, (u16)reg, len, val); + rval = ____smiapp_read(sensor, SMIAPP_REG_ADDR(reg), len, val); else - rval = ____smiapp_read_8only(sensor, (u16)reg, len, val); + rval = ____smiapp_read_8only(sensor, SMIAPP_REG_ADDR(reg), len, + val); if (rval < 0) return rval; @@ -227,9 +228,9 @@ int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val) struct i2c_msg msg; unsigned char data[6]; unsigned int retries; - unsigned int flags = reg >> 24; - unsigned int len = (u8)(reg >> 16); - u16 offset = reg; + u8 flags = SMIAPP_REG_FLAGS(reg); + u8 len = SMIAPP_REG_WIDTH(reg); + u16 offset = SMIAPP_REG_ADDR(reg); int r; if ((len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT && diff --git a/drivers/media/i2c/smiapp/smiapp-regs.h b/drivers/media/i2c/smiapp/smiapp-regs.h index 81957cb..3552112 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.h +++ b/drivers/media/i2c/smiapp/smiapp-regs.h @@ -28,6 +28,10 @@ #include <linux/i2c.h> #include <linux/types.h> +#define SMIAPP_REG_ADDR(reg) ((u16)reg) +#define SMIAPP_REG_WIDTH(reg) ((u8)(reg >> 16)) +#define SMIAPP_REG_FLAGS(reg) ((u8)(reg >> 24)) + /* Use upper 8 bits of the type field for flags */ #define SMIAPP_REG_FLAG_FLOAT (1 << 24) _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
