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authorJean Delvare <khali@linux-fr.org>2010-10-28 20:31:50 +0200
committerJean Delvare <khali@endymion.delvare>2010-10-28 20:31:50 +0200
commitbd5f47ec961594b1091839333600008f8166fd00 (patch)
treeaa4296edffd81e2976d20d3ea30ea18108b2a4de /drivers/hwmon/ams/ams-pmu.c
parent6dfee85397a47063291fe199eaf950bee7944454 (diff)
downloadlinux-bd5f47ec961594b1091839333600008f8166fd00.tar.bz2
Move ams driver to macintosh
The ams driver isn't a hardware monitoring driver, so it shouldn't live under driver/hwmon. drivers/macintosh seems much more appropriate, as the driver is only useful on PowerBooks and iBooks. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Stelian Pop <stelian@popies.net> Cc: Michael Hanselmann <linux-kernel@hansmi.ch> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/hwmon/ams/ams-pmu.c')
-rw-r--r--drivers/hwmon/ams/ams-pmu.c201
1 files changed, 0 insertions, 201 deletions
diff --git a/drivers/hwmon/ams/ams-pmu.c b/drivers/hwmon/ams/ams-pmu.c
deleted file mode 100644
index 4f61b3ee1b08..000000000000
--- a/drivers/hwmon/ams/ams-pmu.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Apple Motion Sensor driver (PMU variant)
- *
- * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-
-#include "ams.h"
-
-/* Attitude */
-#define AMS_X 0x00
-#define AMS_Y 0x01
-#define AMS_Z 0x02
-
-/* Not exactly known, maybe chip vendor */
-#define AMS_VENDOR 0x03
-
-/* Freefall registers */
-#define AMS_FF_CLEAR 0x04
-#define AMS_FF_ENABLE 0x05
-#define AMS_FF_LOW_LIMIT 0x06
-#define AMS_FF_DEBOUNCE 0x07
-
-/* Shock registers */
-#define AMS_SHOCK_CLEAR 0x08
-#define AMS_SHOCK_ENABLE 0x09
-#define AMS_SHOCK_HIGH_LIMIT 0x0a
-#define AMS_SHOCK_DEBOUNCE 0x0b
-
-/* Global interrupt and power control register */
-#define AMS_CONTROL 0x0c
-
-static u8 ams_pmu_cmd;
-
-static void ams_pmu_req_complete(struct adb_request *req)
-{
- complete((struct completion *)req->arg);
-}
-
-/* Only call this function from task context */
-static void ams_pmu_set_register(u8 reg, u8 value)
-{
- static struct adb_request req;
- DECLARE_COMPLETION(req_complete);
-
- req.arg = &req_complete;
- if (pmu_request(&req, ams_pmu_req_complete, 4, ams_pmu_cmd, 0x00, reg, value))
- return;
-
- wait_for_completion(&req_complete);
-}
-
-/* Only call this function from task context */
-static u8 ams_pmu_get_register(u8 reg)
-{
- static struct adb_request req;
- DECLARE_COMPLETION(req_complete);
-
- req.arg = &req_complete;
- if (pmu_request(&req, ams_pmu_req_complete, 3, ams_pmu_cmd, 0x01, reg))
- return 0;
-
- wait_for_completion(&req_complete);
-
- if (req.reply_len > 0)
- return req.reply[0];
- else
- return 0;
-}
-
-/* Enables or disables the specified interrupts */
-static void ams_pmu_set_irq(enum ams_irq reg, char enable)
-{
- if (reg & AMS_IRQ_FREEFALL) {
- u8 val = ams_pmu_get_register(AMS_FF_ENABLE);
- if (enable)
- val |= 0x80;
- else
- val &= ~0x80;
- ams_pmu_set_register(AMS_FF_ENABLE, val);
- }
-
- if (reg & AMS_IRQ_SHOCK) {
- u8 val = ams_pmu_get_register(AMS_SHOCK_ENABLE);
- if (enable)
- val |= 0x80;
- else
- val &= ~0x80;
- ams_pmu_set_register(AMS_SHOCK_ENABLE, val);
- }
-
- if (reg & AMS_IRQ_GLOBAL) {
- u8 val = ams_pmu_get_register(AMS_CONTROL);
- if (enable)
- val |= 0x80;
- else
- val &= ~0x80;
- ams_pmu_set_register(AMS_CONTROL, val);
- }
-}
-
-static void ams_pmu_clear_irq(enum ams_irq reg)
-{
- if (reg & AMS_IRQ_FREEFALL)
- ams_pmu_set_register(AMS_FF_CLEAR, 0x00);
-
- if (reg & AMS_IRQ_SHOCK)
- ams_pmu_set_register(AMS_SHOCK_CLEAR, 0x00);
-}
-
-static u8 ams_pmu_get_vendor(void)
-{
- return ams_pmu_get_register(AMS_VENDOR);
-}
-
-static void ams_pmu_get_xyz(s8 *x, s8 *y, s8 *z)
-{
- *x = ams_pmu_get_register(AMS_X);
- *y = ams_pmu_get_register(AMS_Y);
- *z = ams_pmu_get_register(AMS_Z);
-}
-
-static void ams_pmu_exit(void)
-{
- ams_sensor_detach();
-
- /* Disable interrupts */
- ams_pmu_set_irq(AMS_IRQ_ALL, 0);
-
- /* Clear interrupts */
- ams_pmu_clear_irq(AMS_IRQ_ALL);
-
- ams_info.has_device = 0;
-
- printk(KERN_INFO "ams: Unloading\n");
-}
-
-int __init ams_pmu_init(struct device_node *np)
-{
- const u32 *prop;
- int result;
-
- /* Set implementation stuff */
- ams_info.of_node = np;
- ams_info.exit = ams_pmu_exit;
- ams_info.get_vendor = ams_pmu_get_vendor;
- ams_info.get_xyz = ams_pmu_get_xyz;
- ams_info.clear_irq = ams_pmu_clear_irq;
- ams_info.bustype = BUS_HOST;
-
- /* Get PMU command, should be 0x4e, but we can never know */
- prop = of_get_property(ams_info.of_node, "reg", NULL);
- if (!prop)
- return -ENODEV;
-
- ams_pmu_cmd = ((*prop) >> 8) & 0xff;
-
- /* Disable interrupts */
- ams_pmu_set_irq(AMS_IRQ_ALL, 0);
-
- /* Clear interrupts */
- ams_pmu_clear_irq(AMS_IRQ_ALL);
-
- result = ams_sensor_attach();
- if (result < 0)
- return result;
-
- /* Set default values */
- ams_pmu_set_register(AMS_FF_LOW_LIMIT, 0x15);
- ams_pmu_set_register(AMS_FF_ENABLE, 0x08);
- ams_pmu_set_register(AMS_FF_DEBOUNCE, 0x14);
-
- ams_pmu_set_register(AMS_SHOCK_HIGH_LIMIT, 0x60);
- ams_pmu_set_register(AMS_SHOCK_ENABLE, 0x0f);
- ams_pmu_set_register(AMS_SHOCK_DEBOUNCE, 0x14);
-
- ams_pmu_set_register(AMS_CONTROL, 0x4f);
-
- /* Clear interrupts */
- ams_pmu_clear_irq(AMS_IRQ_ALL);
-
- ams_info.has_device = 1;
-
- /* Enable interrupts */
- ams_pmu_set_irq(AMS_IRQ_ALL, 1);
-
- printk(KERN_INFO "ams: Found PMU based motion sensor\n");
-
- return 0;
-}