Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 217096
b: refs/heads/master
c: 78537c3
h: refs/heads/master
v: v3
  • Loading branch information
Takashi Iwai authored and Guenter Roeck committed Oct 25, 2010
1 parent 8ef835d commit 3057a1a
Show file tree
Hide file tree
Showing 3 changed files with 45 additions and 9 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9401ba13281f9cf36c85d4f8d3a52f9655e69b58
refs/heads/master: 78537c3b6ffcb69bf4fd43a74ba57928fcefce95
35 changes: 27 additions & 8 deletions trunk/drivers/hwmon/lis3lv02d.c
Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,7 @@ static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z)
/* conversion btw sampling rate and the register values */
static int lis3_12_rates[4] = {40, 160, 640, 2560};
static int lis3_8_rates[2] = {100, 400};
static int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000};

/* ODR is Output Data Rate */
static int lis3lv02d_get_odr(void)
Expand All @@ -156,6 +157,9 @@ static int lis3lv02d_set_odr(int rate)
u8 ctrl;
int i, len, shift;

if (!rate)
return -EINVAL;

lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl);
ctrl &= ~lis3_dev.odr_mask;
len = 1 << hweight_long(lis3_dev.odr_mask); /* # of possible values */
Expand All @@ -172,19 +176,25 @@ static int lis3lv02d_set_odr(int rate)

static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
{
u8 reg;
u8 ctlreg, reg;
s16 x, y, z;
u8 selftest;
int ret;

mutex_lock(&lis3->mutex);
if (lis3_dev.whoami == WAI_12B)
selftest = CTRL1_ST;
else
selftest = CTRL1_STP;
if (lis3_dev.whoami == WAI_3DC) {
ctlreg = CTRL_REG4;
selftest = CTRL4_ST0;
} else {
ctlreg = CTRL_REG1;
if (lis3_dev.whoami == WAI_12B)
selftest = CTRL1_ST;
else
selftest = CTRL1_STP;
}

lis3->read(lis3, CTRL_REG1, &reg);
lis3->write(lis3, CTRL_REG1, (reg | selftest));
lis3->read(lis3, ctlreg, &reg);
lis3->write(lis3, ctlreg, (reg | selftest));
msleep(lis3->pwron_delay / lis3lv02d_get_odr());

/* Read directly to avoid axis remap */
Expand All @@ -193,7 +203,7 @@ static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
z = lis3->read_data(lis3, OUTZ);

/* back to normal settings */
lis3->write(lis3, CTRL_REG1, reg);
lis3->write(lis3, ctlreg, reg);
msleep(lis3->pwron_delay / lis3lv02d_get_odr());

results[0] = x - lis3->read_data(lis3, OUTX);
Expand Down Expand Up @@ -674,6 +684,15 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
dev->odr_mask = CTRL1_DR;
dev->scale = LIS3_SENSITIVITY_8B;
break;
case WAI_3DC:
printk(KERN_INFO DRIVER_NAME ": 8 bits 3DC sensor found\n");
dev->read_data = lis3lv02d_read_8;
dev->mdps_max_val = 128;
dev->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
dev->odrs = lis3_3dc_rates;
dev->odr_mask = CTRL1_ODR0|CTRL1_ODR1|CTRL1_ODR2|CTRL1_ODR3;
dev->scale = LIS3_SENSITIVITY_8B;
break;
default:
printk(KERN_ERR DRIVER_NAME
": unknown sensor type 0x%X\n", dev->whoami);
Expand Down
17 changes: 17 additions & 0 deletions trunk/drivers/hwmon/lis3lv02d.h
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ enum lis3_reg {
CTRL_REG1 = 0x20,
CTRL_REG2 = 0x21,
CTRL_REG3 = 0x22,
CTRL_REG4 = 0x23,
HP_FILTER_RESET = 0x23,
STATUS_REG = 0x27,
OUTX_L = 0x28,
Expand Down Expand Up @@ -93,6 +94,7 @@ enum lis3lv02d_reg {
};

enum lis3_who_am_i {
WAI_3DC = 0x33, /* 8 bits: LIS3DC, HP3DC */
WAI_12B = 0x3A, /* 12 bits: LIS3LV02D[LQ]... */
WAI_8B = 0x3B, /* 8 bits: LIS[23]02D[LQ]... */
WAI_6B = 0x52, /* 6 bits: LIS331DLF - not supported */
Expand All @@ -118,6 +120,13 @@ enum lis3lv02d_ctrl1_8b {
CTRL1_DR = 0x80,
};

enum lis3lv02d_ctrl1_3dc {
CTRL1_ODR0 = 0x10,
CTRL1_ODR1 = 0x20,
CTRL1_ODR2 = 0x40,
CTRL1_ODR3 = 0x80,
};

enum lis3lv02d_ctrl2 {
CTRL2_DAS = 0x01,
CTRL2_SIM = 0x02,
Expand All @@ -129,6 +138,14 @@ enum lis3lv02d_ctrl2 {
CTRL2_FS = 0x80, /* Full Scale selection */
};

enum lis3lv02d_ctrl4_3dc {
CTRL4_SIM = 0x01,
CTRL4_ST0 = 0x02,
CTRL4_ST1 = 0x04,
CTRL4_FS0 = 0x10,
CTRL4_FS1 = 0x20,
};

enum lis302d_ctrl2 {
HP_FF_WU2 = 0x08,
HP_FF_WU1 = 0x04,
Expand Down

0 comments on commit 3057a1a

Please sign in to comment.