| |
| /* |
| * Register bits for Wolfson WM97xx series of codecs |
| */ |
| |
| #ifndef _WM97XX_H_ |
| #define _WM97XX_H_ |
| |
| #include <linux/ac97_codec.h> /* AC97 control layer */ |
| |
| /* |
| * WM97xx AC97 Touchscreen registers |
| */ |
| #define AC97_WM97XX_DIGITISER1 0x76 |
| #define AC97_WM97XX_DIGITISER2 0x78 |
| #define AC97_WM97XX_DIGITISER_RD 0x7a |
| |
| /* |
| * WM97xx register bits |
| */ |
| #define WM97XX_POLL 0x8000 /* initiate a polling measurement */ |
| #define WM97XX_ADCSEL_X 0x1000 /* x coord measurement */ |
| #define WM97XX_ADCSEL_Y 0x2000 /* y coord measurement */ |
| #define WM97XX_ADCSEL_PRES 0x3000 /* pressure measurement */ |
| #define WM97XX_COO 0x0800 /* enable coordinate mode */ |
| #define WM97XX_CTC 0x0400 /* enable continuous mode */ |
| #define WM97XX_CM_RATE_93 0x0000 /* 93.75Hz continuous rate */ |
| #define WM97XX_CM_RATE_187 0x0100 /* 187.5Hz continuous rate */ |
| #define WM97XX_CM_RATE_375 0x0200 /* 375Hz continuous rate */ |
| #define WM97XX_CM_RATE_750 0x0300 /* 750Hz continuous rate */ |
| #define WM97XX_CM_RATE_8K 0x00f0 /* 8kHz continuous rate */ |
| #define WM97XX_CM_RATE_12K 0x01f0 /* 12kHz continuous rate */ |
| #define WM97XX_CM_RATE_24K 0x02f0 /* 24kHz continuous rate */ |
| #define WM97XX_CM_RATE_48K 0x03f0 /* 48kHz continuous rate */ |
| #define WM97XX_DELAY(i) ((i << 4) & 0x00f0) /* sample delay times */ |
| #define WM97XX_SLEN 0x0008 /* slot read back enable */ |
| #define WM97XX_SLT(i) ((i - 5) & 0x7) /* touchpanel slot selection (5-11) */ |
| #define WM97XX_PRP_DETW 0x4000 /* pen detect on, digitiser off, wake up */ |
| #define WM97XX_PRP_DET 0x8000 /* pen detect on, digitiser off, no wake up */ |
| #define WM97XX_PRP_DET_DIG 0xc000 /* pen detect on, digitiser on */ |
| #define WM97XX_RPR 0x2000 /* wake up on pen down */ |
| #define WM97XX_PEN_DOWN 0x8000 /* pen is down */ |
| |
| /* WM9712 Bits */ |
| #define WM9712_45W 0x1000 /* set for 5-wire touchscreen */ |
| #define WM9712_PDEN 0x0800 /* measure only when pen down */ |
| #define WM9712_WAIT 0x0200 /* wait until adc is read before next sample */ |
| #define WM9712_PIL 0x0100 /* current used for pressure measurement. set 400uA else 200uA */ |
| #define WM9712_MASK_HI 0x0040 /* hi on mask pin (47) stops conversions */ |
| #define WM9712_MASK_EDGE 0x0080 /* rising/falling edge on pin delays sample */ |
| #define WM9712_MASK_SYNC 0x00c0 /* rising/falling edge on mask initiates sample */ |
| #define WM9712_RPU(i) (i&0x3f) /* internal pull up on pen detect (64k / rpu) */ |
| #define WM9712_ADCSEL_COMP1 0x4000 /* COMP1/AUX1 measurement (pin29) */ |
| #define WM9712_ADCSEL_COMP2 0x5000 /* COMP2/AUX2 measurement (pin30) */ |
| #define WM9712_ADCSEL_BMON 0x6000 /* BMON/AUX3 measurement (pin31) */ |
| #define WM9712_ADCSEL_WIPER 0x7000 /* WIPER/AUX4 measurement (pin12) */ |
| #define WM9712_PD(i) (0x1 << i) /* power management */ |
| |
| /* WM9712 Registers */ |
| #define AC97_WM9712_POWER 0x24 |
| #define AC97_WM9712_REV 0x58 |
| |
| /* WM9705 Bits */ |
| #define WM9705_PDEN 0x1000 /* measure only when pen is down */ |
| #define WM9705_PINV 0x0800 /* inverts sense of pen down output */ |
| #define WM9705_BSEN 0x0400 /* BUSY flag enable, pin47 is 1 when busy */ |
| #define WM9705_BINV 0x0200 /* invert BUSY (pin47) output */ |
| #define WM9705_WAIT 0x0100 /* wait until adc is read before next sample */ |
| #define WM9705_PIL 0x0080 /* current used for pressure measurement. set 400uA else 200uA */ |
| #define WM9705_PHIZ 0x0040 /* set PHONE and PCBEEP inputs to high impedance */ |
| #define WM9705_MASK_HI 0x0010 /* hi on mask stops conversions */ |
| #define WM9705_MASK_EDGE 0x0020 /* rising/falling edge on pin delays sample */ |
| #define WM9705_MASK_SYNC 0x0030 /* rising/falling edge on mask initiates sample */ |
| #define WM9705_PDD(i) (i & 0x000f) /* pen detect comparator threshold */ |
| #define WM9705_ADCSEL_BMON 0x4000 /* BMON measurement */ |
| #define WM9705_ADCSEL_AUX 0x5000 /* AUX measurement */ |
| #define WM9705_ADCSEL_PHONE 0x6000 /* PHONE measurement */ |
| #define WM9705_ADCSEL_PCBEEP 0x7000 /* PCBEEP measurement */ |
| |
| /* AUX ADC ID's */ |
| #define TS_COMP1 0x0 |
| #define TS_COMP2 0x1 |
| #define TS_BMON 0x2 |
| #define TS_WIPER 0x3 |
| |
| /* ID numbers */ |
| #define WM97XX_ID1 0x574d |
| #define WM9712_ID2 0x4c12 |
| #define WM9705_ID2 0x4c05 |
| |
| #define AC97_LINK_FRAME 21 /* time in uS for AC97 link frame */ |
| |
| void register_touchscreen_codec(struct ac97_codec *codec); |
| void unregister_touchscreen_codec(struct ac97_codec *codec); |
| |
| #endif |
