1 /* 2 * bfin_sport.h - interface to Blackfin SPORTs 3 * 4 * Copyright 2004-2009 Analog Devices Inc. 5 * 6 * Licensed under the GPL-2 or later. 7 */ 8 #ifndef __BFIN_SPORT_H__ 9 #define __BFIN_SPORT_H__ 10 11 12 #include <linux/types.h> 13 #include <uapi/asm/bfin_sport.h> 14 15 /* 16 * All Blackfin system MMRs are padded to 32bits even if the register 17 * itself is only 16bits. So use a helper macro to streamline this. 18 */ 19 #define __BFP(m) u16 m; u16 __pad_##m 20 struct sport_register { 21 __BFP(tcr1); 22 __BFP(tcr2); 23 __BFP(tclkdiv); 24 __BFP(tfsdiv); 25 union { 26 u32 tx32; 27 u16 tx16; 28 }; 29 u32 __pad_tx; 30 union { 31 u32 rx32; /* use the anomaly wrapper below */ 32 u16 rx16; 33 }; 34 u32 __pad_rx; 35 __BFP(rcr1); 36 __BFP(rcr2); 37 __BFP(rclkdiv); 38 __BFP(rfsdiv); 39 __BFP(stat); 40 __BFP(chnl); 41 __BFP(mcmc1); 42 __BFP(mcmc2); 43 u32 mtcs0; 44 u32 mtcs1; 45 u32 mtcs2; 46 u32 mtcs3; 47 u32 mrcs0; 48 u32 mrcs1; 49 u32 mrcs2; 50 u32 mrcs3; 51 }; 52 #undef __BFP 53 54 struct bfin_snd_platform_data { 55 const unsigned short *pin_req; 56 }; 57 58 #define bfin_read_sport_rx32(base) \ 59 ({ \ 60 struct sport_register *__mmrs = (void *)base; \ 61 u32 __ret; \ 62 unsigned long flags; \ 63 if (ANOMALY_05000473) \ 64 local_irq_save(flags); \ 65 __ret = __mmrs->rx32; \ 66 if (ANOMALY_05000473) \ 67 local_irq_restore(flags); \ 68 __ret; \ 69 }) 70 71 #endif 72