diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 14:24:30 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 14:24:30 -0700 |
commit | aaeb2554337217dfa4eac2fcc90da7be540b9a73 (patch) | |
tree | e453668c8e4253c1a86c8fbc3f92090e93f8336f /drivers/media/i2c/smiapp/smiapp-regs.c | |
parent | d27050641e9bc056446deb0814e7ba1aa7911f5a (diff) | |
parent | a2668e10d7246e782f7708dc47c00f035da23a81 (diff) |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media into next
Pull media updates from Mauro Carvalho Chehab:
"This contains:
- a new frontend/tuner driver set for si2168 and sa2157
- Videobuf 2 core now supports DVB too
- A new gspca sub-driver (dtcs033)
- saa7134 is now converted to use videobuf2
- add support for 4K timings
- several other driver fixes and improvements
PS. This pull request is shorter than usual, partly because I have
some other patches on topic branches that I'll be sending you later
this week"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (286 commits)
[media] au0828-dvb: restore its permission to 644
[media] xc5000: delay tuner sleep to 5 seconds
[media] xc5000: Don't use whitespace before tabs
[media] xc5000: fix CamelCase
[media] xc5000: Don't wrap msleep()
[media] xc5000: get rid of positive error codes
[media] au0828: reset streaming when a new frequency is set
[media] au0828: Improve debug messages for urb_completion
[media] au0828: Cancel stream-restart operation if frontend is disconnected
[media] dib0700: fix RC support on Hauppauge Nova-TD
[media] USB: as102_usb_drv.c: Remove useless return variables
[media] v4l: Fix documentation of V4L2_PIX_FMT_H264_MVC and VP8 pixel formats
[media] m5mols: Replace missing header
[media] staging: lirc: Fix sparse warnings
[media] fix mceusb endpoint type identification/handling
[media] az6027: Added the PID for a new revision of the Elgato EyeTV Sat DVB-S Tuner
[media] DocBook media: fix typo
[media] adv7604: Add missing include to linux/types.h
[media] v4l: Validate fields in the core code for subdev EDID ioctls
[media] v4l: Add support for DV timings ioctls on subdev nodes
...
Diffstat (limited to 'drivers/media/i2c/smiapp/smiapp-regs.c')
-rw-r--r-- | drivers/media/i2c/smiapp/smiapp-regs.c | 89 |
1 files changed, 61 insertions, 28 deletions
diff --git a/drivers/media/i2c/smiapp/smiapp-regs.c b/drivers/media/i2c/smiapp/smiapp-regs.c index 4fac32cfcb3..a2098007fb7 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.c +++ b/drivers/media/i2c/smiapp/smiapp-regs.c @@ -114,14 +114,14 @@ static int ____smiapp_read(struct smiapp_sensor *sensor, u16 reg, *val = 0; /* high byte comes first */ switch (len) { - case SMIA_REG_32BIT: + case SMIAPP_REG_32BIT: *val = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3]; break; - case SMIA_REG_16BIT: + case SMIAPP_REG_16BIT: *val = (data[0] << 8) + data[1]; break; - case SMIA_REG_8BIT: + case SMIAPP_REG_8BIT: *val = data[0]; break; default: @@ -165,31 +165,28 @@ 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 != SMIA_REG_8BIT && len != SMIA_REG_16BIT - && len != SMIA_REG_32BIT) + if (len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT + && len != SMIAPP_REG_32BIT) return -EINVAL; - if (smiapp_quirk_reg(sensor, reg, val)) - goto found_quirk; - - if (len == SMIA_REG_8BIT && !only8) - rval = ____smiapp_read(sensor, (u16)reg, len, val); + if (len == SMIAPP_REG_8BIT || !only8) + 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; -found_quirk: - if (reg & SMIA_REG_FLAG_FLOAT) + if (reg & SMIAPP_REG_FLAG_FLOAT) *val = float_to_u32_mul_1000000(client, *val); return 0; } -int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val) +int smiapp_read_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 *val) { return __smiapp_read( sensor, reg, val, @@ -197,28 +194,47 @@ int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val) SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY)); } +int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val) +{ + int rval; + + *val = 0; + rval = smiapp_call_quirk(sensor, reg_access, false, ®, val); + if (rval == -ENOIOCTLCMD) + return 0; + if (rval < 0) + return rval; + + return smiapp_read_no_quirk(sensor, reg, val); +} + int smiapp_read_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val) { + int rval; + + *val = 0; + rval = smiapp_call_quirk(sensor, reg_access, false, ®, val); + if (rval == -ENOIOCTLCMD) + return 0; + if (rval < 0) + return rval; + return __smiapp_read(sensor, reg, val, true); } -/* - * Write to a 8/16-bit register. - * Returns zero if successful, or non-zero otherwise. - */ -int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) +int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val) { struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 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 != SMIA_REG_8BIT && len != SMIA_REG_16BIT && - len != SMIA_REG_32BIT) || flags) + if ((len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT && + len != SMIAPP_REG_32BIT) || flags) return -EINVAL; msg.addr = client->addr; @@ -231,14 +247,14 @@ int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) data[1] = (u8) (reg & 0xff); switch (len) { - case SMIA_REG_8BIT: + case SMIAPP_REG_8BIT: data[2] = val; break; - case SMIA_REG_16BIT: + case SMIAPP_REG_16BIT: data[2] = val >> 8; data[3] = val; break; - case SMIA_REG_32BIT: + case SMIAPP_REG_32BIT: data[2] = val >> 24; data[3] = val >> 16; data[4] = val >> 8; @@ -271,3 +287,20 @@ int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) return r; } + +/* + * Write to a 8/16-bit register. + * Returns zero if successful, or non-zero otherwise. + */ +int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) +{ + int rval; + + rval = smiapp_call_quirk(sensor, reg_access, true, ®, &val); + if (rval == -ENOIOCTLCMD) + return 0; + if (rval < 0) + return rval; + + return smiapp_write_no_quirk(sensor, reg, val); +} |