diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/sbus/char/bbc_i2c.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/sbus/char/bbc_i2c.h')
| -rw-r--r-- | kernel/drivers/sbus/char/bbc_i2c.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/kernel/drivers/sbus/char/bbc_i2c.h b/kernel/drivers/sbus/char/bbc_i2c.h new file mode 100644 index 000000000..4b4531066 --- /dev/null +++ b/kernel/drivers/sbus/char/bbc_i2c.h @@ -0,0 +1,85 @@ +#ifndef _BBC_I2C_H +#define _BBC_I2C_H + +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/list.h> + +struct bbc_i2c_client { + struct bbc_i2c_bus *bp; + struct platform_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 platform_device *op; + struct { + struct platform_device *device; + int client_claimed; + } devs[NUM_CHILDREN]; +}; + +/* Probing and attachment. */ +extern struct platform_device *bbc_i2c_getdev(struct bbc_i2c_bus *, int); +extern struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct platform_device *); +extern void bbc_i2c_detach(struct bbc_i2c_client *); + +/* Register read/write. NOTE: Blocking! */ +extern int bbc_i2c_writeb(struct bbc_i2c_client *, unsigned char val, int off); +extern int bbc_i2c_readb(struct bbc_i2c_client *, unsigned char *byte, int off); +extern int bbc_i2c_write_buf(struct bbc_i2c_client *, char *buf, int len, int off); +extern int bbc_i2c_read_buf(struct bbc_i2c_client *, char *buf, int len, int off); + +#endif /* _BBC_I2C_H */ |