diff options
Diffstat (limited to 'drivers/input/touchscreen/rmi4/rmi_driver.h')
| -rw-r--r-- | drivers/input/touchscreen/rmi4/rmi_driver.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/rmi4/rmi_driver.h b/drivers/input/touchscreen/rmi4/rmi_driver.h new file mode 100644 index 000000000000..9e9f2c098225 --- /dev/null +++ b/drivers/input/touchscreen/rmi4/rmi_driver.h @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2011 Synaptics Incorporated + * Copyright (c) 2011 Unixphere + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#ifndef _RMI_DRIVER_H +#define _RMI_DRIVER_H + +#define RMI_DRIVER_MAJOR_VERSION 1 +#define RMI_DRIVER_MINOR_VERSION 3 +#define RMI_DRIVER_SUB_MINOR_VERSION 0 + +/* TODO: Figure out some way to construct this string in the define macro + * using the values defined above. + */ +#define RMI_DRIVER_VERSION_STRING "1.3.0" + + +#define RMI_PRODUCT_ID_LENGTH 10 +#define RMI_PRODUCT_INFO_LENGTH 2 +#define RMI_DATE_CODE_LENGTH 3 + +struct rmi_driver_data { + struct rmi_function_container rmi_functions; + + struct rmi_function_container *f01_container; + + int num_of_irq_regs; + u8 *current_irq_mask; + u8 *irq_mask_store; + bool irq_stored; + struct mutex irq_mutex; + struct lock_class_key irq_key; + + unsigned char pdt_props; + unsigned char bsr; + bool enabled; + + u8 manufacturer_id; + /* product id + null termination */ + u8 product_id[RMI_PRODUCT_ID_LENGTH + 1]; + +#ifdef CONFIG_PM + bool suspended; + struct mutex suspend_mutex; + + void *pm_data; + int (*pre_suspend) (const void *pm_data); + int (*post_resume) (const void *pm_data); +#endif + + void *data; +}; + +struct pdt_entry { + u8 query_base_addr:8; + u8 command_base_addr:8; + u8 control_base_addr:8; + u8 data_base_addr:8; + u8 interrupt_source_count:3; + u8 bits3and4:2; + u8 function_version:2; + u8 bit7:1; + u8 function_number:8; +}; + +int rmi_driver_f01_init(struct rmi_device *rmi_dev); + +static inline void copy_pdt_entry_to_fd(struct pdt_entry *pdt, + struct rmi_function_descriptor *fd, + u16 page_start) +{ + fd->query_base_addr = pdt->query_base_addr + page_start; + fd->command_base_addr = pdt->command_base_addr + page_start; + fd->control_base_addr = pdt->control_base_addr + page_start; + fd->data_base_addr = pdt->data_base_addr + page_start; + fd->function_number = pdt->function_number; + fd->interrupt_source_count = pdt->interrupt_source_count; + fd->function_version = pdt->function_version; +} + +/* Helper function to convert a short (in host processor endianess) to + * a byte array in the RMI endianess for shorts. See above comment for + * why we dont us htons or something like that. + */ +void hstoba(u8 *dest, u16 src); + +/* Helper fn to convert a byte array representing a short in the RMI + * endian-ness to a short in the native processor's specific endianness. + * We don't use ntohs/htons here because, well, we're not dealing with + * a pair of shorts. And casting dest to short* wouldn't work, because + * that would imply knowing the byte order of short in the first place. + */ +void batohs(u16 *dest, u8 *src); + +#endif |