/* * Blackfin On-Chip SPI Driver * * Copyright 2004-2008 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef _SPI_CHANNEL_H_ #define _SPI_CHANNEL_H_ #define MIN_SPI_BAUD_VAL 2 #define BIT_CTL_ENABLE 0x4000 #define BIT_CTL_OPENDRAIN 0x2000 #define BIT_CTL_MASTER 0x1000 #define BIT_CTL_CPOL 0x0800 #define BIT_CTL_CPHA 0x0400 #define BIT_CTL_LSBF 0x0200 #define BIT_CTL_WORDSIZE 0x0100 #define BIT_CTL_EMISO 0x0020 #define BIT_CTL_PSSE 0x0010 #define BIT_CTL_GM 0x0008 #define BIT_CTL_SZ 0x0004 #define BIT_CTL_RXMOD 0x0000 #define BIT_CTL_TXMOD 0x0001 #define BIT_CTL_TIMOD_DMA_TX 0x0003 #define BIT_CTL_TIMOD_DMA_RX 0x0002 #define BIT_CTL_SENDOPT 0x0004 #define BIT_CTL_TIMOD 0x0003 #define BIT_STAT_SPIF 0x0001 #define BIT_STAT_MODF 0x0002 #define BIT_STAT_TXE 0x0004 #define BIT_STAT_TXS 0x0008 #define BIT_STAT_RBSY 0x0010 #define BIT_STAT_RXS 0x0020 #define BIT_STAT_TXCOL 0x0040 #define BIT_STAT_CLR 0xFFFF #define BIT_STU_SENDOVER 0x0001 #define BIT_STU_RECVFULL 0x0020 /* * 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 /* * bfin spi registers layout */ struct bfin_spi_regs { __BFP(ctl); __BFP(flg); __BFP(stat); __BFP(tdbr); __BFP(rdbr); __BFP(baud); __BFP(shadow); }; #undef __BFP #define MAX_CTRL_CS 8 /* cs in spi controller */ /* device.platform_data for SSP controller devices */ struct bfin5xx_spi_master { u16 num_chipselect; u8 enable_dma; u16 pin_req[7]; }; /* spi_board_info.controller_data for SPI slave devices, * copied to spi_device.platform_data ... mostly for dma tuning */ struct bfin5xx_spi_chip { u16 ctl_reg; u8 enable_dma; u16 cs_chg_udelay; /* Some devices require 16-bit delays */ /* Value to send if no TX value is supplied, usually 0x0 or 0xFFFF */ u16 idle_tx_val; u8 pio_interrupt; /* Enable spi data irq */ }; #endif /* _SPI_CHANNEL_H_ */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bryan Wu | 134 | 60.63% | 3 | 25.00% |
| Mike Frysinger | 68 | 30.77% | 3 | 25.00% |
| Barry Song | 5 | 2.26% | 1 | 8.33% |
| Yi Li | 4 | 1.81% | 1 | 8.33% |
| Michael Hennerich | 4 | 1.81% | 1 | 8.33% |
| Wolfgang Mües | 4 | 1.81% | 1 | 8.33% |
| Robin Getz | 1 | 0.45% | 1 | 8.33% |
| Cliff Cai | 1 | 0.45% | 1 | 8.33% |
| Total | 221 | 100.00% | 12 | 100.00% |