diff options
Diffstat (limited to 'arch/blackfin/include/asm/bfin_sport.h')
| -rw-r--r-- | arch/blackfin/include/asm/bfin_sport.h | 192 |
1 files changed, 54 insertions, 138 deletions
diff --git a/arch/blackfin/include/asm/bfin_sport.h b/arch/blackfin/include/asm/bfin_sport.h index 65a651db5b0..50b9dfd4839 100644 --- a/arch/blackfin/include/asm/bfin_sport.h +++ b/arch/blackfin/include/asm/bfin_sport.h @@ -1,155 +1,71 @@ /* - * bfin_sport.h - userspace header for bfin sport driver + * bfin_sport.h - interface to Blackfin SPORTs * - * Copyright 2004-2008 Analog Devices Inc. + * Copyright 2004-2009 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ - #ifndef __BFIN_SPORT_H__ #define __BFIN_SPORT_H__ -#define SPORT_MAJOR 237 -#define SPORT_NR_DEVS 2 - -/* Sport mode: it can be set to TDM, i2s or others */ -#define NORM_MODE 0x0 -#define TDM_MODE 0x1 -#define I2S_MODE 0x2 - -/* Data format, normal, a-law or u-law */ -#define NORM_FORMAT 0x0 -#define ALAW_FORMAT 0x2 -#define ULAW_FORMAT 0x3 - -/* Function driver which use sport must initialize the structure */ -struct sport_config { - /* TDM (multichannels), I2S or other mode */ - unsigned int mode:3; - - /* if TDM mode is selected, channels must be set */ - int channels; /* Must be in 8 units */ - unsigned int frame_delay:4; /* Delay between frame sync pulse and first bit */ - - /* I2S mode */ - unsigned int right_first:1; /* Right stereo channel first */ - - /* In mormal mode, the following item need to be set */ - unsigned int lsb_first:1; /* order of transmit or receive data */ - unsigned int fsync:1; /* Frame sync required */ - unsigned int data_indep:1; /* data independent frame sync generated */ - unsigned int act_low:1; /* Active low TFS */ - unsigned int late_fsync:1; /* Late frame sync */ - unsigned int tckfe:1; - unsigned int sec_en:1; /* Secondary side enabled */ - - /* Choose clock source */ - unsigned int int_clk:1; /* Internal or external clock */ - - /* If external clock is used, the following fields are ignored */ - int serial_clk; - int fsync_clk; - - unsigned int data_format:2; /* Normal, u-law or a-law */ - - int word_len; /* How length of the word in bits, 3-32 bits */ - int dma_enabled; -}; - -/* Userspace interface */ -#define SPORT_IOC_MAGIC 'P' -#define SPORT_IOC_CONFIG _IOWR('P', 0x01, struct sport_config) -#ifdef __KERNEL__ +#include <linux/types.h> +#include <uapi/asm/bfin_sport.h> +/* + * All Blackfin system MMRs are padded to 32bits even if the register + * itself is only 16bits. So use a helper macro to streamline this. + */ +#define __BFP(m) u16 m; u16 __pad_##m struct sport_register { - unsigned short tcr1; - unsigned short reserved0; - unsigned short tcr2; - unsigned short reserved1; - unsigned short tclkdiv; - unsigned short reserved2; - unsigned short tfsdiv; - unsigned short reserved3; - unsigned long tx; - unsigned long reserved_l0; - unsigned long rx; - unsigned long reserved_l1; - unsigned short rcr1; - unsigned short reserved4; - unsigned short rcr2; - unsigned short reserved5; - unsigned short rclkdiv; - unsigned short reserved6; - unsigned short rfsdiv; - unsigned short reserved7; - unsigned short stat; - unsigned short reserved8; - unsigned short chnl; - unsigned short reserved9; - unsigned short mcmc1; - unsigned short reserved10; - unsigned short mcmc2; - unsigned short reserved11; - unsigned long mtcs0; - unsigned long mtcs1; - unsigned long mtcs2; - unsigned long mtcs3; - unsigned long mrcs0; - unsigned long mrcs1; - unsigned long mrcs2; - unsigned long mrcs3; + __BFP(tcr1); + __BFP(tcr2); + __BFP(tclkdiv); + __BFP(tfsdiv); + union { + u32 tx32; + u16 tx16; + }; + u32 __pad_tx; + union { + u32 rx32; /* use the anomaly wrapper below */ + u16 rx16; + }; + u32 __pad_rx; + __BFP(rcr1); + __BFP(rcr2); + __BFP(rclkdiv); + __BFP(rfsdiv); + __BFP(stat); + __BFP(chnl); + __BFP(mcmc1); + __BFP(mcmc2); + u32 mtcs0; + u32 mtcs1; + u32 mtcs2; + u32 mtcs3; + u32 mrcs0; + u32 mrcs1; + u32 mrcs2; + u32 mrcs3; }; +#undef __BFP -struct sport_dev { - struct cdev cdev; /* Char device structure */ - - int sport_num; - - int dma_rx_chan; - int dma_tx_chan; - - int rx_irq; - unsigned char *rx_buf; /* Buffer store the received data */ - int rx_len; /* How many bytes will be received */ - int rx_received; /* How many bytes has been received */ - - int tx_irq; - const unsigned char *tx_buf; - int tx_len; - int tx_sent; - - int sport_err_irq; - - struct mutex mutex; /* mutual exclusion semaphore */ - struct task_struct *task; - - wait_queue_head_t waitq; - int wait_con; - struct sport_register *regs; - struct sport_config config; +struct bfin_snd_platform_data { + const unsigned short *pin_req; }; -#endif - -#define SPORT_TCR1 0 -#define SPORT_TCR2 1 -#define SPORT_TCLKDIV 2 -#define SPORT_TFSDIV 3 -#define SPORT_RCR1 8 -#define SPORT_RCR2 9 -#define SPORT_RCLKDIV 10 -#define SPORT_RFSDIV 11 -#define SPORT_CHANNEL 13 -#define SPORT_MCMC1 14 -#define SPORT_MCMC2 15 -#define SPORT_MTCS0 16 -#define SPORT_MTCS1 17 -#define SPORT_MTCS2 18 -#define SPORT_MTCS3 19 -#define SPORT_MRCS0 20 -#define SPORT_MRCS1 21 -#define SPORT_MRCS2 22 -#define SPORT_MRCS3 23 +#define bfin_read_sport_rx32(base) \ +({ \ + struct sport_register *__mmrs = (void *)base; \ + u32 __ret; \ + unsigned long flags; \ + if (ANOMALY_05000473) \ + local_irq_save(flags); \ + __ret = __mmrs->rx32; \ + if (ANOMALY_05000473) \ + local_irq_restore(flags); \ + __ret; \ +}) #endif |