/* * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __linux_pxa2xx_spi_h #define __linux_pxa2xx_spi_h #include #define PXA2XX_CS_ASSERT (0x01) #define PXA2XX_CS_DEASSERT (0x02) /* device.platform_data for SSP controller devices */ struct pxa2xx_spi_master { u32 clock_enable; u16 num_chipselect; u8 enable_dma; /* DMA engine specific config */ int rx_chan_id; int tx_chan_id; int rx_slave_id; int tx_slave_id; /* For non-PXA arches */ struct ssp_device ssp; }; /* spi_board_info.controller_data for SPI slave devices, * copied to spi_device.platform_data ... mostly for dma tuning */ struct pxa2xx_spi_chip { u8 tx_threshold; u8 tx_hi_threshold; u8 rx_threshold; u8 dma_burst_size; u32 timeout; u8 enable_loopback; int gpio_cs; void (*cs_control)(u32 command); }; #if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP) #include #include extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); #endif #endif