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authorDavid S. Miller <davem@davemloft.net>2008-08-30 07:34:14 +0200
committerDavid S. Miller <davem@davemloft.net>2008-08-30 07:34:14 +0200
commite21e245bcd9d5244735799387d14421789b20557 (patch)
treed8bfe0be5ac850764203b440566ef279cd47c7b5 /drivers/sbus/char/bbc_i2c.h
parentenvctrl: Convert to pure OF driver. (diff)
downloadlinux-e21e245bcd9d5244735799387d14421789b20557.tar.xz
linux-e21e245bcd9d5244735799387d14421789b20557.zip
bbc_i2c: Convert to pure OF driver.
This thing was a mess, who wrote this junk? :) Luckily we'll soon have nice generic I2C layer drivers for this PCF based I2C stuff on sparc64. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/sbus/char/bbc_i2c.h')
-rw-r--r--drivers/sbus/char/bbc_i2c.h75
1 files changed, 70 insertions, 5 deletions
diff --git a/drivers/sbus/char/bbc_i2c.h b/drivers/sbus/char/bbc_i2c.h
index fb01bd17704b..83c4811b7b5e 100644
--- a/drivers/sbus/char/bbc_i2c.h
+++ b/drivers/sbus/char/bbc_i2c.h
@@ -1,14 +1,79 @@
-/* $Id: bbc_i2c.h,v 1.2 2001/04/02 09:59:25 davem Exp $ */
#ifndef _BBC_I2C_H
#define _BBC_I2C_H
-#include <asm/ebus.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/list.h>
-struct bbc_i2c_client;
+struct bbc_i2c_client {
+ struct bbc_i2c_bus *bp;
+ struct of_device *op;
+ int bus;
+ int address;
+};
+
+enum fan_action { FAN_SLOWER, FAN_SAME, FAN_FASTER, FAN_FULLBLAST, FAN_STATE_MAX };
+
+struct bbc_cpu_temperature {
+ struct list_head bp_list;
+ struct list_head glob_list;
+
+ struct bbc_i2c_client *client;
+ int index;
+
+ /* Current readings, and history. */
+ s8 curr_cpu_temp;
+ s8 curr_amb_temp;
+ s8 prev_cpu_temp;
+ s8 prev_amb_temp;
+ s8 avg_cpu_temp;
+ s8 avg_amb_temp;
+
+ int sample_tick;
+
+ enum fan_action fan_todo[2];
+#define FAN_AMBIENT 0
+#define FAN_CPU 1
+};
+
+struct bbc_fan_control {
+ struct list_head bp_list;
+ struct list_head glob_list;
+
+ struct bbc_i2c_client *client;
+ int index;
+
+ int psupply_fan_on;
+ int cpu_fan_speed;
+ int system_fan_speed;
+};
+
+#define NUM_CHILDREN 8
+
+struct bbc_i2c_bus {
+ struct bbc_i2c_bus *next;
+ int index;
+ spinlock_t lock;
+ void __iomem *i2c_bussel_reg;
+ void __iomem *i2c_control_regs;
+ unsigned char own, clock;
+
+ wait_queue_head_t wq;
+ volatile int waiting;
+
+ struct list_head temps;
+ struct list_head fans;
+
+ struct of_device *op;
+ struct {
+ struct of_device *device;
+ int client_claimed;
+ } devs[NUM_CHILDREN];
+};
/* Probing and attachment. */
-extern struct linux_ebus_child *bbc_i2c_getdev(int);
-extern struct bbc_i2c_client *bbc_i2c_attach(struct linux_ebus_child *);
+extern struct of_device *bbc_i2c_getdev(struct bbc_i2c_bus *, int);
+extern struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct of_device *);
extern void bbc_i2c_detach(struct bbc_i2c_client *);
/* Register read/write. NOTE: Blocking! */