| /* |
| * 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; |
| }; |
| |
| /* 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 |
