/* * linux/net/driver/wireless/cx3110x/sm_drv_spi.h * * Copyright (C) 2003 Conexant Americas Inc. All Rights Reserved. * Copyright (C) 2004, 2005 Nokia Corporation * Author: Samuel Ortiz * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #ifndef _SM_DRV_SPI_H #define _SM_DRV_SPI_H /* * INCLUDES */ #include #include #include #include #include #include /* omap_get_config etc */ #include "islspi_io.h" /* * FUNCTION PROTOTYPES */ /* * DEFINES */ #define SPI_ADRS_ARM_INTERRUPTS 0x00 #define SPI_ADRS_ARM_INT_EN 0x04 #define SPI_ADRS_HOST_INTERRUPTS 0x08 #define SPI_ADRS_HOST_INT_EN 0x0c #define SPI_ADRS_HOST_INT_ACK 0x10 #define SPI_ADRS_GEN_PURP_1 0x14 #define SPI_ADRS_GEN_PURP_2 0x18 #define SPI_ADRS_DEV_CTRL_STAT 0x26 // high word #define SPI_ADRS_DMA_DATA 0x28 #define SPI_ADRS_DMA_WRITE_CTRL 0x2c #define SPI_ADRS_DMA_WRITE_LEN 0x2e #define SPI_ADRS_DMA_WRITE_BASE 0x30 #define SPI_ADRS_DMA_READ_CTRL 0x34 #define SPI_ADRS_DMA_READ_LEN 0x36 #define SPI_ADRS_DMA_READ_BASE 0x38 #define SPI_CTRL_STAT_HOST_OVERRIDE 0x8000 #define SPI_CTRL_STAT_START_HALTED 0x4000 #define SPI_CTRL_STAT_RAM_BOOT 0x2000 #define SPI_CTRL_STAT_HOST_RESET 0x1000 #define SPI_CTRL_STAT_HOST_CPU_EN 0x0800 #define SPI_DMA_WRITE_CTRL_ENABLE 0x0001 #define SPI_DMA_READ_CTRL_ENABLE 0x0001 #define HOST_ALLOWED (1 << 7) #define UMAC_FIRMWARE_FILE "3825.arm" #define MTUM_FIRMWARE_FILE "mtlm3825.arm" #define FIRMWARE_ADDRESS 0x20000 #define SPI_TIMEOUT 100 /* msec */ #define SPI_MAX_RX_PACKETS 32 #define SPI_MAX_TX_PACKETS 32 #define SPI_MAX_PACKET_SIZE 32767 #define SPI_TARGET_INT_WAKEUP 0x00000001 #define SPI_TARGET_INT_SLEEP 0x00000002 #define SPI_TARGET_INT_RDDONE 0x00000004 #define SPI_TARGET_INT_CTS 0x00004000 #define SPI_TARGET_INT_DR 0x00008000 #define SPI_HOST_INT_READY 0x00000001 #define SPI_HOST_INT_SW_UPDATE 0x00000004 #define SPI_HOST_INT_UPDATE 0x10000000 #define SPI_HOST_INT_CTS 0x00004000 // clear to send #define SPI_HOST_INT_DR 0x00008000 // data ready #define SPI_HOST_INTS_DEFAULT SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE #define UPLOAD_STATE_BOOTING 0 #define UPLOAD_STATE_RUNNING 1 /* * Structure definitions */ struct s_dma_regs{ unsigned short cmd; unsigned short len; unsigned long addr; }; struct s_txinfo { uint32_t p; uint32_t c; uint32_t f; /* in islsm the skb contains everything */ struct sk_buff *txdata[SPI_MAX_TX_PACKETS]; }; #define SPI_DELAY_THRESHOLD 6 struct spi_hif_local_data { spinlock_t lock; /* lock */ struct net_device *netdev; /* Basically RX and TX queues. only the TX queue is used */ /* TODO: replace this with a simple skb_queue */ struct s_txinfo txinfo; /* TX info */ const struct omap_wlan_config * nokia_wlan_config; struct clk *mcbsp2_ck; uint32_t fast_mode; uint32_t upload_state; uint32_t max_packet_size; uint32_t initial_packets; uint32_t spi_packets; struct timer_list spi_timer; /* SPI timer */ /* from lp data structure */ uint32_t device_state; /* Powersave/Active */ uint32_t link_state; /* Assciated * or not */ struct tasklet_struct tasklet; /* Our bottom * halve (BH) * handler */ struct work_struct stats_work; /* Wireless stats work queue */ unsigned long stats_timestamp; /* Last stats update */ }; #define HIF_LP(__lp) ((struct spi_hif_local_data *)__lp->hif_local_data) #define HIF_CLK(hif_data) (hif_data)->mcbsp2_ck #define HIF_CLK_USE(hif_data) clk_use((hif_data)->mcbsp2_ck) #define HIF_CLK_UNUSE(hif_data) clk_unuse((hif_data)->mcbsp2_ck) #define HIF_OF_ISLSM(islsm) ((struct spi_hif_local_data *) islsm->priv) #define HIF_OF_NETDEV(ndev) ((struct spi_hif_local_data *) islsm_priv(ndev)) /* struct s_pda * sm_drv_spi_get_pda(struct device *dev); */ /* int sm_drv_spi_request_irq( struct net_device *dev ); */ /* void sm_drv_spi_free_irq( struct net_device *dev ); */ /****************************************************************************** * Queue Support Functions ******************************************************************************/ /* Get txdata struct at the produce pointer */ static inline void txdata_get_p(struct spi_hif_local_data *hif_lp, struct sk_buff **txdata) { struct s_txinfo *txinfo; txinfo = &(hif_lp->txinfo); *txdata = txinfo->txdata[txinfo->p & (SPI_MAX_RX_PACKETS - 1)]; } /* Set txdata struct at the produce pointer */ static inline void txdata_set_p(struct spi_hif_local_data *hif_lp, struct sk_buff *txdata) { struct s_txinfo *txinfo; txinfo = &(hif_lp->txinfo); txinfo->txdata[txinfo->p & (SPI_MAX_RX_PACKETS - 1)] = txdata; } /* Get txdata struct at the consume pointer */ static inline void txdata_get_c(struct spi_hif_local_data *hif_lp, struct sk_buff **txdata) { struct s_txinfo *txinfo; txinfo = &(hif_lp->txinfo); *txdata = txinfo->txdata[txinfo->c & (SPI_MAX_RX_PACKETS - 1)]; } /* Increase TX produce pointer */ static inline void tx_produce(struct spi_hif_local_data *hif_lp) { hif_lp->txinfo.p++; } /* Increase TX consume pointer */ static inline void tx_consume(struct spi_hif_local_data *hif_lp) { hif_lp->txinfo.c++; } /* Returns number of TX frames that can be produced */ static inline int tx_pspace(struct spi_hif_local_data *hif_lp) { struct s_txinfo *txinfo; int space; unsigned long flags; txinfo = &(hif_lp->txinfo); spin_lock_irqsave(&hif_lp->lock, flags); space = SPI_MAX_TX_PACKETS - (txinfo->p - txinfo->c); spin_unlock_irqrestore(&hif_lp->lock, flags); return space; } /* Returns number of TX frames that can be consumed */ static inline int tx_cspace(struct spi_hif_local_data *hif_lp) { struct s_txinfo *txinfo; int space; unsigned long flags; txinfo = &(hif_lp->txinfo); spin_lock_irqsave(&hif_lp->lock, flags); space = (txinfo->p - txinfo->c); spin_unlock_irqrestore(&hif_lp->lock, flags); return space; } #endif /* _SM_DRV_SPI_H */