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Diffstat (limited to 'include/linux/cfag12864b.h')
| -rw-r--r-- | include/linux/cfag12864b.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/linux/cfag12864b.h b/include/linux/cfag12864b.h new file mode 100644 index 000000000..6617d9c68 --- /dev/null +++ b/include/linux/cfag12864b.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Filename: cfag12864b.h + * Version: 0.1.0 + * Description: cfag12864b LCD driver header + * + * Author: Copyright (C) Miguel Ojeda <ojeda@kernel.org> + * Date: 2006-10-12 + */ + +#ifndef _CFAG12864B_H_ +#define _CFAG12864B_H_ + +#define CFAG12864B_WIDTH (128) +#define CFAG12864B_HEIGHT (64) +#define CFAG12864B_CONTROLLERS (2) +#define CFAG12864B_PAGES (8) +#define CFAG12864B_ADDRESSES (64) +#define CFAG12864B_SIZE ((CFAG12864B_CONTROLLERS) * \ + (CFAG12864B_PAGES) * \ + (CFAG12864B_ADDRESSES)) + +/* + * The driver will blit this buffer to the LCD + * + * Its size is CFAG12864B_SIZE. + */ +extern unsigned char * cfag12864b_buffer; + +/* + * Get the refresh rate of the LCD + * + * Returns the refresh rate (hertz). + */ +extern unsigned int cfag12864b_getrate(void); + +/* + * Enable refreshing + * + * Returns 0 if successful (anyone was using it), + * or != 0 if failed (someone is using it). + */ +extern unsigned char cfag12864b_enable(void); + +/* + * Disable refreshing + * + * You should call this only when you finish using the LCD. + */ +extern void cfag12864b_disable(void); + +/* + * Is enabled refreshing? (is anyone using the module?) + * + * Returns 0 if refreshing is not enabled (anyone is using it), + * or != 0 if refreshing is enabled (someone is using it). + * + * Useful for buffer read-only modules. + */ +extern unsigned char cfag12864b_isenabled(void); + +/* + * Is the module inited? + */ +extern unsigned char cfag12864b_isinited(void); + +#endif /* _CFAG12864B_H_ */ + |