cregit-Linux how code gets into the kernel

Release 4.11 drivers/input/serio/i8042-io.h

#ifndef _I8042_IO_H

#define _I8042_IO_H

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

/*
 * Names.
 */


#define I8042_KBD_PHYS_DESC "isa0060/serio0"

#define I8042_AUX_PHYS_DESC "isa0060/serio1"

#define I8042_MUX_PHYS_DESC "isa0060/serio%d"

/*
 * IRQs.
 */

#ifdef __alpha__

# define I8042_KBD_IRQ	1

# define I8042_AUX_IRQ	(RTC_PORT(0) == 0x170 ? 9 : 12)	
/* Jensen is special */
#elif defined(__arm__)
/* defined in include/asm-arm/arch-xxx/irqs.h */
#include <asm/irq.h>
#elif defined(CONFIG_SH_CAYMAN)
#include <asm/irq.h>
#elif defined(CONFIG_PPC)
extern int of_i8042_kbd_irq;
extern int of_i8042_aux_irq;

# define I8042_KBD_IRQ  of_i8042_kbd_irq

# define I8042_AUX_IRQ  of_i8042_aux_irq
#else

# define I8042_KBD_IRQ	1

# define I8042_AUX_IRQ	12
#endif


/*
 * Register numbers.
 */


#define I8042_COMMAND_REG	0x64

#define I8042_STATUS_REG	0x64

#define I8042_DATA_REG		0x60


static inline int i8042_read_data(void) { return inb(I8042_DATA_REG); }

Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik15100.00%1100.00%
Total15100.00%1100.00%


static inline int i8042_read_status(void) { return inb(I8042_STATUS_REG); }

Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik15100.00%1100.00%
Total15100.00%1100.00%


static inline void i8042_write_data(int val) { outb(val, I8042_DATA_REG); }

Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik17100.00%1100.00%
Total17100.00%1100.00%


static inline void i8042_write_command(int val) { outb(val, I8042_COMMAND_REG); }

Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik17100.00%1100.00%
Total17100.00%1100.00%


static inline int i8042_platform_init(void) { /* * On some platforms touching the i8042 data register region can do really * bad things. Because of this the region is always reserved on such boxes. */ #if defined(CONFIG_PPC) if (check_legacy_ioport(I8042_DATA_REG)) return -ENODEV; #endif #if !defined(__sh__) && !defined(__alpha__) if (!request_region(I8042_DATA_REG, 16, "i8042")) return -EBUSY; #endif i8042_reset = I8042_RESET_ALWAYS; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt2638.81%112.50%
Vojtech Pavlik2537.31%225.00%
Olaf Hering1217.91%112.50%
Björn Helgaas11.49%112.50%
Marcos Paulo de Souza11.49%112.50%
Dmitry Torokhov11.49%112.50%
Kumar Gala11.49%112.50%
Total67100.00%8100.00%


static inline void i8042_platform_exit(void) { #if !defined(__sh__) && !defined(__alpha__) release_region(I8042_DATA_REG, 16); #endif }

Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik31100.00%1100.00%
Total31100.00%1100.00%

#endif /* _I8042_IO_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Vojtech Pavlik18068.18%321.43%
Benjamin Herrenschmidt269.85%17.14%
Martyn Welch228.33%17.14%
Olaf Hering124.55%17.14%
Paul Mundt93.41%214.29%
Russell King62.27%17.14%
Peter Chubb41.52%17.14%
Björn Helgaas20.76%17.14%
Marcos Paulo de Souza10.38%17.14%
Dmitry Torokhov10.38%17.14%
Kumar Gala10.38%17.14%
Total264100.00%14100.00%
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