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Date: Sat, 22 Nov 2008 13:35:27 +0100
From: Pavel Machek <pavel@...e.cz>
To: ?ric Piel <eric.piel@...mplin-utc.net>, pavel@...e.cz
Cc: Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, trenn@...e.de, rpurdie@...ys.net,
hmh@....eng.br
Subject: Re: [PATCH 1/2] LIS3LV02D: separate the core from HP ACPI API
On Sat 2008-11-22 01:55:12, ?ric Piel wrote:
>
> The sensor can be accessed via various buses. In particular, SPI, I?C
> and, on HP laptops, via a specific ACPI API (the only one currently
> supported). Separate this latest platform from the core of the sensor
> driver to allow support for the other bus type. The second, and more
> direct goal is actually to be able to merge this part with the
> hp-disk-leds driver, which has the same ACPI PNP number.
>
> Signed-off-by: Pavel Machek <pavel@...e.cz>
> Signed-off-by: Eric Piel <eric.piel@...mplin-utc.net>
Oops, I sent wrong patch. This should fix the 'compile as module'
problems...
Signed-off-by: Pavel Machek <pavel@...e.cz>
diff -ur ../l/READ-ONLY/linux/drivers/hwmon/hp_accel.c linux-mm/drivers/hwmon/hp_accel.c
--- ../l/READ-ONLY/linux/drivers/hwmon/hp_accel.c 2008-11-21 14:28:39.000000000 +0100
+++ linux-mm/drivers/hwmon/hp_accel.c 2008-11-10 09:11:40.000000000 +0100
@@ -189,6 +189,9 @@
return -EINVAL;
adev.device = device;
+ adev.init = lis3lv02d_acpi_init;
+ adev.read = lis3lv02d_acpi_read;
+ adev.write = lis3lv02d_acpi_write;
strcpy(acpi_device_name(device), DRIVER_NAME);
strcpy(acpi_device_class(device), ACPI_MDPS_CLASS);
device->driver_data = &adev;
--- ../l/READ-ONLY/linux/drivers/hwmon/lis3lv02d.c 2008-11-21 14:28:33.000000000 +0100
+++ linux-mm/drivers/hwmon/lis3lv02d.c 2008-11-06 12:27:27.000000000 +0100
@@ -34,6 +34,7 @@
#include <linux/wait.h>
#include <linux/poll.h>
#include <linux/freezer.h>
+#include <linux/version.h>
#include <linux/uaccess.h>
#include <acpi/acpi_drivers.h>
#include <asm/atomic.h>
@@ -67,8 +68,8 @@
{
u8 lo, hi;
- lis3lv02d_acpi_read(handle, reg, &lo);
- lis3lv02d_acpi_read(handle, reg + 1, &hi);
+ adev.read(handle, reg, &lo);
+ adev.read(handle, reg + 1, &hi);
/* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */
return (s16)((hi << 8) | lo);
}
@@ -114,7 +115,7 @@
{
adev.is_on = 0;
/* disable X,Y,Z axis and power down */
- lis3lv02d_acpi_write(handle, CTRL_REG1, 0x00);
+ adev.write(handle, CTRL_REG1, 0x00);
}
void lis3lv02d_poweron(acpi_handle handle)
@@ -122,16 +123,16 @@
u8 val;
adev.is_on = 1;
- lis3lv02d_acpi_init(handle);
- lis3lv02d_acpi_write(handle, FF_WU_CFG, 0);
+ adev.init(handle);
+ adev.write(handle, FF_WU_CFG, 0);
/*
* BDU: LSB and MSB values are not updated until both have been read.
* So the value read will always be correct.
* IEN: Interrupt for free-fall and DD, not for data-ready.
*/
- lis3lv02d_acpi_read(handle, CTRL_REG2, &val);
+ adev.read(handle, CTRL_REG2, &val);
val |= CTRL2_BDU | CTRL2_IEN;
- lis3lv02d_acpi_write(handle, CTRL_REG2, val);
+ adev.write(handle, CTRL_REG2, val);
}
@@ -313,7 +314,7 @@
int val;
lis3lv02d_increase_use(&adev);
- lis3lv02d_acpi_read(adev.device->handle, CTRL_REG1, &ctrl);
+ adev.read(adev.device->handle, CTRL_REG1, &ctrl);
lis3lv02d_decrease_use(&adev);
val = (ctrl & (CTRL1_DF0 | CTRL1_DF1)) >> 4;
return sprintf(buf, "%d\n", lis3lv02dl_df_val[val]);
@@ -355,3 +356,12 @@
MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver");
MODULE_AUTHOR("Yan Burman and Eric Piel");
MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL_GPL(lis3lv02d_init_device);
+EXPORT_SYMBOL_GPL(lis3lv02d_joystick_enable);
+EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable);
+EXPORT_SYMBOL_GPL(lis3lv02d_poweroff);
+EXPORT_SYMBOL_GPL(lis3lv02d_poweron);
+EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs);
+
+EXPORT_SYMBOL_GPL(adev);
Only in ../l/READ-ONLY/linux/drivers/hwmon/: lis3lv02d.c.orig
diff -ur ../l/READ-ONLY/linux/drivers/hwmon/lis3lv02d.h linux-mm/drivers/hwmon/lis3lv02d.h
--- ../l/READ-ONLY/linux/drivers/hwmon/lis3lv02d.h 2008-11-21 14:28:33.000000000 +0100
+++ linux-mm/drivers/hwmon/lis3lv02d.h 2008-11-06 12:24:05.000000000 +0100
@@ -148,8 +148,6 @@
};
acpi_status lis3lv02d_acpi_init(acpi_handle handle);
-acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret);
-acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val);
struct axis_conversion {
s8 x;
@@ -159,6 +157,10 @@
struct acpi_lis3lv02d {
struct acpi_device *device; /* The ACPI device */
+ acpi_status (* init) (acpi_handle handle);
+ acpi_status (* write) (acpi_handle handle, int reg, u8 val);
+ acpi_status (* read) (acpi_handle handle, int reg, u8 *ret);
+
struct input_dev *idev; /* input device */
struct task_struct *kthread; /* kthread for input */
struct mutex lock;
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
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