71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
/*
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* bfin_sport.h - interface to Blackfin SPORTs
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*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __BFIN_SPORT_H__
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#define __BFIN_SPORT_H__
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#include <linux/types.h>
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#include <uapi/asm/bfin_sport.h>
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/*
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* All Blackfin system MMRs are padded to 32bits even if the register
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* itself is only 16bits. So use a helper macro to streamline this.
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*/
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#define __BFP(m) u16 m; u16 __pad_##m
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struct sport_register {
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__BFP(tcr1);
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__BFP(tcr2);
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__BFP(tclkdiv);
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__BFP(tfsdiv);
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union {
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u32 tx32;
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u16 tx16;
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};
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u32 __pad_tx;
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union {
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u32 rx32; /* use the anomaly wrapper below */
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u16 rx16;
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};
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u32 __pad_rx;
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__BFP(rcr1);
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__BFP(rcr2);
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__BFP(rclkdiv);
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__BFP(rfsdiv);
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__BFP(stat);
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__BFP(chnl);
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__BFP(mcmc1);
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__BFP(mcmc2);
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u32 mtcs0;
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u32 mtcs1;
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u32 mtcs2;
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u32 mtcs3;
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u32 mrcs0;
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u32 mrcs1;
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u32 mrcs2;
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u32 mrcs3;
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};
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#undef __BFP
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struct bfin_snd_platform_data {
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const unsigned short *pin_req;
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};
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#define bfin_read_sport_rx32(base) \
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({ \
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struct sport_register *__mmrs = (void *)base; \
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u32 __ret; \
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unsigned long flags; \
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if (ANOMALY_05000473) \
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local_irq_save(flags); \
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__ret = __mmrs->rx32; \
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if (ANOMALY_05000473) \
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local_irq_restore(flags); \
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__ret; \
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})
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#endif
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