bfin_rotary.h
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/*
* board initialization should put one of these structures into platform_data
* and place the bfin-rotary onto platform_bus named "bfin-rotary".
*
* Copyright 2008-2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _BFIN_ROTARY_H
#define _BFIN_ROTARY_H
/* mode bitmasks */
#define ROT_QUAD_ENC CNTMODE_QUADENC /* quadrature/grey code encoder mode */
#define ROT_BIN_ENC CNTMODE_BINENC /* binary encoder mode */
#define ROT_UD_CNT CNTMODE_UDCNT /* rotary counter mode */
#define ROT_DIR_CNT CNTMODE_DIRCNT /* direction counter mode */
#define ROT_DEBE DEBE /* Debounce Enable */
#define ROT_CDGINV CDGINV /* CDG Pin Polarity Invert */
#define ROT_CUDINV CUDINV /* CUD Pin Polarity Invert */
#define ROT_CZMINV CZMINV /* CZM Pin Polarity Invert */
struct bfin_rotary_platform_data {
/* set rotary UP KEY_### or BTN_### in case you prefer
* bfin-rotary to send EV_KEY otherwise set 0
*/
unsigned int rotary_up_key;
/* set rotary DOWN KEY_### or BTN_### in case you prefer
* bfin-rotary to send EV_KEY otherwise set 0
*/
unsigned int rotary_down_key;
/* set rotary BUTTON KEY_### or BTN_### */
unsigned int rotary_button_key;
/* set rotary Relative Axis REL_### in case you prefer
* bfin-rotary to send EV_REL otherwise set 0
*/
unsigned int rotary_rel_code;
unsigned short debounce; /* 0..17 */
unsigned short mode;
unsigned short pm_wakeup;
unsigned short *pin_list;
};
/* CNT_CONFIG bitmasks */
#define CNTE (1 << 0) /* Counter Enable */
#define DEBE (1 << 1) /* Debounce Enable */
#define CDGINV (1 << 4) /* CDG Pin Polarity Invert */
#define CUDINV (1 << 5) /* CUD Pin Polarity Invert */
#define CZMINV (1 << 6) /* CZM Pin Polarity Invert */
#define CNTMODE_SHIFT 8
#define CNTMODE (0x7 << CNTMODE_SHIFT) /* Counter Operating Mode */
#define ZMZC (1 << 1) /* CZM Zeroes Counter Enable */
#define BNDMODE_SHIFT 12
#define BNDMODE (0x3 << BNDMODE_SHIFT) /* Boundary register Mode */
#define INPDIS (1 << 15) /* CUG and CDG Input Disable */
#define CNTMODE_QUADENC (0 << CNTMODE_SHIFT) /* quadrature encoder mode */
#define CNTMODE_BINENC (1 << CNTMODE_SHIFT) /* binary encoder mode */
#define CNTMODE_UDCNT (2 << CNTMODE_SHIFT) /* up/down counter mode */
#define CNTMODE_DIRCNT (4 << CNTMODE_SHIFT) /* direction counter mode */
#define CNTMODE_DIRTMR (5 << CNTMODE_SHIFT) /* direction timer mode */
#define BNDMODE_COMP (0 << BNDMODE_SHIFT) /* boundary compare mode */
#define BNDMODE_ZERO (1 << BNDMODE_SHIFT) /* boundary compare and zero mode */
#define BNDMODE_CAPT (2 << BNDMODE_SHIFT) /* boundary capture mode */
#define BNDMODE_AEXT (3 << BNDMODE_SHIFT) /* boundary auto-extend mode */
/* CNT_IMASK bitmasks */
#define ICIE (1 << 0) /* Illegal Gray/Binary Code Interrupt Enable */
#define UCIE (1 << 1) /* Up count Interrupt Enable */
#define DCIE (1 << 2) /* Down count Interrupt Enable */
#define MINCIE (1 << 3) /* Min Count Interrupt Enable */
#define MAXCIE (1 << 4) /* Max Count Interrupt Enable */
#define COV31IE (1 << 5) /* Bit 31 Overflow Interrupt Enable */
#define COV15IE (1 << 6) /* Bit 15 Overflow Interrupt Enable */
#define CZEROIE (1 << 7) /* Count to Zero Interrupt Enable */
#define CZMIE (1 << 8) /* CZM Pin Interrupt Enable */
#define CZMEIE (1 << 9) /* CZM Error Interrupt Enable */
#define CZMZIE (1 << 10) /* CZM Zeroes Counter Interrupt Enable */
/* CNT_STATUS bitmasks */
#define ICII (1 << 0) /* Illegal Gray/Binary Code Interrupt Identifier */
#define UCII (1 << 1) /* Up count Interrupt Identifier */
#define DCII (1 << 2) /* Down count Interrupt Identifier */
#define MINCII (1 << 3) /* Min Count Interrupt Identifier */
#define MAXCII (1 << 4) /* Max Count Interrupt Identifier */
#define COV31II (1 << 5) /* Bit 31 Overflow Interrupt Identifier */
#define COV15II (1 << 6) /* Bit 15 Overflow Interrupt Identifier */
#define CZEROII (1 << 7) /* Count to Zero Interrupt Identifier */
#define CZMII (1 << 8) /* CZM Pin Interrupt Identifier */
#define CZMEII (1 << 9) /* CZM Error Interrupt Identifier */
#define CZMZII (1 << 10) /* CZM Zeroes Counter Interrupt Identifier */
/* CNT_COMMAND bitmasks */
#define W1LCNT 0xf /* Load Counter Register */
#define W1LMIN 0xf0 /* Load Min Register */
#define W1LMAX 0xf00 /* Load Max Register */
#define W1ZMONCE (1 << 12) /* Enable CZM Clear Counter Once */
#define W1LCNT_ZERO (1 << 0) /* write 1 to load CNT_COUNTER with zero */
#define W1LCNT_MIN (1 << 2) /* write 1 to load CNT_COUNTER from CNT_MIN */
#define W1LCNT_MAX (1 << 3) /* write 1 to load CNT_COUNTER from CNT_MAX */
#define W1LMIN_ZERO (1 << 4) /* write 1 to load CNT_MIN with zero */
#define W1LMIN_CNT (1 << 5) /* write 1 to load CNT_MIN from CNT_COUNTER */
#define W1LMIN_MAX (1 << 7) /* write 1 to load CNT_MIN from CNT_MAX */
#define W1LMAX_ZERO (1 << 8) /* write 1 to load CNT_MAX with zero */
#define W1LMAX_CNT (1 << 9) /* write 1 to load CNT_MAX from CNT_COUNTER */
#define W1LMAX_MIN (1 << 10) /* write 1 to load CNT_MAX from CNT_MIN */
/* CNT_DEBOUNCE bitmasks */
#define DPRESCALE 0xf /* Load Counter Register */
#endif