diff options
Diffstat (limited to 'arch/arm/mach-stmp378x/include/mach/i2c.h')
| -rw-r--r-- | arch/arm/mach-stmp378x/include/mach/i2c.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-stmp378x/include/mach/i2c.h b/arch/arm/mach-stmp378x/include/mach/i2c.h new file mode 100644 index 000000000000..05a57f6351e3 --- /dev/null +++ b/arch/arm/mach-stmp378x/include/mach/i2c.h @@ -0,0 +1,48 @@ +/* + * Freescale STMP378X I2C low-level/dma functions + * + * Author: Dmitrij Frasenyak <sed@embeddedalley.com> + * + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ +#ifndef _ARM_ARCH_I2C_H +#define _ARM_ARCH_I2C_H + +#include <linux/device.h> +#include <linux/module.h> + +#include <linux/completion.h> +#include <linux/i2c.h> + +#define I2C_READ 1 +#define I2C_WRITE 0 + +void hw_i2c_clear_dma_interrupt(void); +int hw_i2c_init(struct device *dev); +void hw_i2c_stop(struct device *dev); +void hw_i2c_setup_write(u8 addr, void *buff, int len, int flags); +void hw_i2c_setup_read(u8 addr, void *buff, int len, int flags); +void hw_i2c_run(int dir); +void hw_i2c_reset_dma(void); +void hw_i2c_finish_read(void *buff, int len); + +struct stmp378x_i2c_dev { + struct device *dev; + int irq_dma; + int irq_err; + struct completion cmd_complete; + u32 cmd_err; + struct i2c_adapter adapter; +}; + +#endif |