cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/intersil/prism54/isl_38xx.h

/*
 *  Copyright (C) 2002 Intersil Americas Inc.
 *
 *  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
 *
 *  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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef _ISL_38XX_H

#define _ISL_38XX_H

#include <asm/io.h>
#include <asm/byteorder.h>


#define ISL38XX_CB_RX_QSIZE                     8

#define ISL38XX_CB_TX_QSIZE                     32

/* ISL38XX Access Point Specific definitions */

#define ISL38XX_MAX_WDS_LINKS                   8

/* ISL38xx Client Specific definitions */

#define ISL38XX_PSM_ACTIVE_STATE                0

#define ISL38XX_PSM_POWERSAVE_STATE             1

/* ISL38XX Host Interface Definitions */

#define ISL38XX_PCI_MEM_SIZE                    0x02000

#define ISL38XX_MEMORY_WINDOW_SIZE              0x01000

#define ISL38XX_DEV_FIRMWARE_ADDRES             0x20000

#define ISL38XX_WRITEIO_DELAY                   10	
/* in us */

#define ISL38XX_RESET_DELAY                     50	
/* in ms */

#define ISL38XX_WAIT_CYCLE                      10	
/* in 10ms */

#define ISL38XX_MAX_WAIT_CYCLES                 10

/* PCI Memory Area */

#define ISL38XX_HARDWARE_REG                    0x0000

#define ISL38XX_CARDBUS_CIS                     0x0800

#define ISL38XX_DIRECT_MEM_WIN                  0x1000

/* Hardware registers */

#define ISL38XX_DEV_INT_REG                     0x0000

#define ISL38XX_INT_IDENT_REG                   0x0010

#define ISL38XX_INT_ACK_REG                     0x0014

#define ISL38XX_INT_EN_REG                      0x0018

#define ISL38XX_GEN_PURP_COM_REG_1              0x0020

#define ISL38XX_GEN_PURP_COM_REG_2              0x0024

#define ISL38XX_CTRL_BLK_BASE_REG               ISL38XX_GEN_PURP_COM_REG_1

#define ISL38XX_DIR_MEM_BASE_REG                0x0030

#define ISL38XX_CTRL_STAT_REG                   0x0078

/* High end mobos queue up pci writes, the following
 * is used to "read" from after a write to force flush */

#define ISL38XX_PCI_POSTING_FLUSH		ISL38XX_INT_EN_REG

/**
 * isl38xx_w32_flush - PCI iomem write helper
 * @base: (host) memory base address of the device
 * @val: 32bit value (host order) to write
 * @offset: byte offset into @base to write value to
 *
 *  This helper takes care of writing a 32bit datum to the
 *  specified offset into the device's pci memory space, and making sure
 *  the pci memory buffers get flushed by performing one harmless read
 *  from the %ISL38XX_PCI_POSTING_FLUSH offset.
 */

static inline void isl38xx_w32_flush(void __iomem *base, u32 val, unsigned long offset) { writel(val, base + offset); (void) readl(base + ISL38XX_PCI_POSTING_FLUSH); }

Contributors

PersonTokensPropCommitsCommitProp
Jeff Garzik3797.37%150.00%
Linus Torvalds12.63%150.00%
Total38100.00%2100.00%

/* Device Interrupt register bits */ #define ISL38XX_DEV_INT_RESET 0x0001 #define ISL38XX_DEV_INT_UPDATE 0x0002 #define ISL38XX_DEV_INT_WAKEUP 0x0008 #define ISL38XX_DEV_INT_SLEEP 0x0010 /* Interrupt Identification/Acknowledge/Enable register bits */ #define ISL38XX_INT_IDENT_UPDATE 0x0002 #define ISL38XX_INT_IDENT_INIT 0x0004 #define ISL38XX_INT_IDENT_WAKEUP 0x0008 #define ISL38XX_INT_IDENT_SLEEP 0x0010 #define ISL38XX_INT_SOURCES 0x001E /* Control/Status register bits */ /* Looks like there are other meaningful bits 0x20004400 seen in normal operation, 0x200044db at 'timeout waiting for mgmt response' */ #define ISL38XX_CTRL_STAT_SLEEPMODE 0x00000200 #define ISL38XX_CTRL_STAT_CLKRUN 0x00800000 #define ISL38XX_CTRL_STAT_RESET 0x10000000 #define ISL38XX_CTRL_STAT_RAMBOOT 0x20000000 #define ISL38XX_CTRL_STAT_STARTHALTED 0x40000000 #define ISL38XX_CTRL_STAT_HOST_OVERRIDE 0x80000000 /* Control Block definitions */ #define ISL38XX_CB_RX_DATA_LQ 0 #define ISL38XX_CB_TX_DATA_LQ 1 #define ISL38XX_CB_RX_DATA_HQ 2 #define ISL38XX_CB_TX_DATA_HQ 3 #define ISL38XX_CB_RX_MGMTQ 4 #define ISL38XX_CB_TX_MGMTQ 5 #define ISL38XX_CB_QCOUNT 6 #define ISL38XX_CB_MGMT_QSIZE 4 #define ISL38XX_MIN_QTHRESHOLD 4 /* fragments */ /* Memory Manager definitions */ #define MGMT_FRAME_SIZE 1500 /* >= size struct obj_bsslist */ #define MGMT_TX_FRAME_COUNT 24 /* max 4 + spare 4 + 8 init */ #define MGMT_RX_FRAME_COUNT 24 /* 4*4 + spare 8 */ #define MGMT_FRAME_COUNT (MGMT_TX_FRAME_COUNT + MGMT_RX_FRAME_COUNT) #define CONTROL_BLOCK_SIZE 1024 /* should be enough */ #define PSM_FRAME_SIZE 1536 #define PSM_MINIMAL_STATION_COUNT 64 #define PSM_FRAME_COUNT PSM_MINIMAL_STATION_COUNT #define PSM_BUFFER_SIZE PSM_FRAME_SIZE * PSM_FRAME_COUNT #define MAX_TRAP_RX_QUEUE 4 #define HOST_MEM_BLOCK CONTROL_BLOCK_SIZE + PSM_BUFFER_SIZE /* Fragment package definitions */ #define FRAGMENT_FLAG_MF 0x0001 #define MAX_FRAGMENT_SIZE 1536 /* In monitor mode frames have a header. I don't know exactly how big those * frame can be but I've never seen any frame bigger than 1584... : */ #define MAX_FRAGMENT_SIZE_RX 1600 typedef struct { __le32 address; /* physical address on host */ __le16 size; /* packet size */ __le16 flags; /* set of bit-wise flags */ } isl38xx_fragment; struct isl38xx_cb { __le32 driver_curr_frag[ISL38XX_CB_QCOUNT]; __le32 device_curr_frag[ISL38XX_CB_QCOUNT]; isl38xx_fragment rx_data_low[ISL38XX_CB_RX_QSIZE]; isl38xx_fragment tx_data_low[ISL38XX_CB_TX_QSIZE]; isl38xx_fragment rx_data_high[ISL38XX_CB_RX_QSIZE]; isl38xx_fragment tx_data_high[ISL38XX_CB_TX_QSIZE]; isl38xx_fragment rx_data_mgmt[ISL38XX_CB_MGMT_QSIZE]; isl38xx_fragment tx_data_mgmt[ISL38XX_CB_MGMT_QSIZE]; }; typedef struct isl38xx_cb isl38xx_control_block; /* determine number of entries currently in queue */ int isl38xx_in_queue(isl38xx_control_block *cb, int queue); void isl38xx_disable_interrupts(void __iomem *); void isl38xx_enable_common_interrupts(void __iomem *); void isl38xx_handle_sleep_request(isl38xx_control_block *, int *, void __iomem *); void isl38xx_handle_wakeup(isl38xx_control_block *, int *, void __iomem *); void isl38xx_trigger_device(int, void __iomem *); void isl38xx_interface_reset(void __iomem *, dma_addr_t); #endif /* _ISL_38XX_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Jeff Garzik46696.88%116.67%
Linus Torvalds71.46%116.67%
Al Viro51.04%116.67%
Margit Schubert-While10.21%116.67%
Dmitry Torokhov10.21%116.67%
Jeff Kirsher10.21%116.67%
Total481100.00%6100.00%
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