atm: [nicstar] reformatted with Lindent
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
chas williams - CONTRACTOR
David S. Miller
parent
741a00be1f
commit
098fde114b
File diff suppressed because it is too large
Load Diff
@ -1,5 +1,4 @@
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/******************************************************************************
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*
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/*
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* nicstar.h
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*
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* Header file for the nicstar device driver.
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@ -8,15 +7,12 @@
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* PowerPC support by Jay Talbott (jay_talbott@mcg.mot.com) April 1999
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*
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* (C) INESC 1998
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*
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******************************************************************************/
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*/
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#ifndef _LINUX_NICSTAR_H_
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#define _LINUX_NICSTAR_H_
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/* Includes *******************************************************************/
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/* Includes */
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#include <linux/types.h>
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#include <linux/pci.h>
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@ -25,12 +21,11 @@
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#include <linux/atmdev.h>
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#include <linux/atm_nicstar.h>
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/* Options ********************************************************************/
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/* Options */
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#define NS_MAX_CARDS 4 /* Maximum number of NICStAR based cards
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controlled by the device driver. Must
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be <= 5 */
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be <= 5 */
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#undef RCQ_SUPPORT /* Do not define this for now */
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@ -43,7 +38,7 @@
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#define NS_VPIBITS 2 /* 0, 1, 2, or 8 */
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#define NS_MAX_RCTSIZE 4096 /* Number of entries. 4096 or 16384.
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Define 4096 only if (all) your card(s)
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Define 4096 only if (all) your card(s)
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have 32K x 32bit SRAM, in which case
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setting this to 16384 will just waste a
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lot of memory.
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@ -51,33 +46,32 @@
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128K x 32bit SRAM will limit the maximum
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VCI. */
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/*#define NS_PCI_LATENCY 64*/ /* Must be a multiple of 32 */
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/*#define NS_PCI_LATENCY 64*//* Must be a multiple of 32 */
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/* Number of buffers initially allocated */
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#define NUM_SB 32 /* Must be even */
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#define NUM_LB 24 /* Must be even */
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#define NUM_HB 8 /* Pre-allocated huge buffers */
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#define NUM_IOVB 48 /* Iovec buffers */
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#define NUM_SB 32 /* Must be even */
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#define NUM_LB 24 /* Must be even */
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#define NUM_HB 8 /* Pre-allocated huge buffers */
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#define NUM_IOVB 48 /* Iovec buffers */
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/* Lower level for count of buffers */
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#define MIN_SB 8 /* Must be even */
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#define MIN_LB 8 /* Must be even */
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#define MIN_SB 8 /* Must be even */
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#define MIN_LB 8 /* Must be even */
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#define MIN_HB 6
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#define MIN_IOVB 8
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/* Upper level for count of buffers */
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#define MAX_SB 64 /* Must be even, <= 508 */
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#define MAX_LB 48 /* Must be even, <= 508 */
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#define MAX_SB 64 /* Must be even, <= 508 */
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#define MAX_LB 48 /* Must be even, <= 508 */
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#define MAX_HB 10
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#define MAX_IOVB 80
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/* These are the absolute maximum allowed for the ioctl() */
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#define TOP_SB 256 /* Must be even, <= 508 */
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#define TOP_LB 128 /* Must be even, <= 508 */
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#define TOP_SB 256 /* Must be even, <= 508 */
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#define TOP_LB 128 /* Must be even, <= 508 */
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#define TOP_HB 64
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#define TOP_IOVB 256
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#define MAX_TBD_PER_VC 1 /* Number of TBDs before a TSR */
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#define MAX_TBD_PER_SCQ 10 /* Only meaningful for variable rate SCQs */
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@ -89,15 +83,12 @@
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#define PCR_TOLERANCE (1.0001)
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/* ESI stuff ******************************************************************/
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/* ESI stuff */
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#define NICSTAR_EPROM_MAC_ADDR_OFFSET 0x6C
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#define NICSTAR_EPROM_MAC_ADDR_OFFSET_ALT 0xF6
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/* #defines *******************************************************************/
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/* #defines */
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#define NS_IOREMAP_SIZE 4096
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@ -123,22 +114,19 @@
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#define NS_SMSKBSIZE (NS_SMBUFSIZE + NS_AAL0_HEADER)
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#define NS_LGSKBSIZE (NS_SMBUFSIZE + NS_LGBUFSIZE)
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/* NICStAR structures located in host memory */
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/* NICStAR structures located in host memory **********************************/
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/* RSQ - Receive Status Queue
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/*
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* RSQ - Receive Status Queue
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*
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* Written by the NICStAR, read by the device driver.
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*/
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typedef struct ns_rsqe
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{
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u32 word_1;
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u32 buffer_handle;
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u32 final_aal5_crc32;
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u32 word_4;
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typedef struct ns_rsqe {
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u32 word_1;
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u32 buffer_handle;
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u32 final_aal5_crc32;
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u32 word_4;
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} ns_rsqe;
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#define ns_rsqe_vpi(ns_rsqep) \
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@ -175,30 +163,27 @@ typedef struct ns_rsqe
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#define ns_rsqe_cellcount(ns_rsqep) \
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(le32_to_cpu((ns_rsqep)->word_4) & 0x000001FF)
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#define ns_rsqe_init(ns_rsqep) \
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((ns_rsqep)->word_4 = cpu_to_le32(0x00000000))
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((ns_rsqep)->word_4 = cpu_to_le32(0x00000000))
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#define NS_RSQ_NUM_ENTRIES (NS_RSQSIZE / 16)
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#define NS_RSQ_ALIGNMENT NS_RSQSIZE
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/* RCQ - Raw Cell Queue
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/*
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* RCQ - Raw Cell Queue
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*
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* Written by the NICStAR, read by the device driver.
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*/
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typedef struct cell_payload
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{
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u32 word[12];
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typedef struct cell_payload {
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u32 word[12];
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} cell_payload;
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typedef struct ns_rcqe
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{
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u32 word_1;
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u32 word_2;
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u32 word_3;
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u32 word_4;
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cell_payload payload;
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typedef struct ns_rcqe {
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u32 word_1;
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u32 word_2;
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u32 word_3;
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u32 word_4;
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cell_payload payload;
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} ns_rcqe;
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#define NS_RCQE_SIZE 64 /* bytes */
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@ -210,28 +195,25 @@ typedef struct ns_rcqe
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#define ns_rcqe_nextbufhandle(ns_rcqep) \
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(le32_to_cpu((ns_rcqep)->word_2))
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/* SCQ - Segmentation Channel Queue
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/*
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* SCQ - Segmentation Channel Queue
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*
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* Written by the device driver, read by the NICStAR.
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*/
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typedef struct ns_scqe
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{
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u32 word_1;
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u32 word_2;
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u32 word_3;
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u32 word_4;
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typedef struct ns_scqe {
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u32 word_1;
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u32 word_2;
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u32 word_3;
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u32 word_4;
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} ns_scqe;
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/* NOTE: SCQ entries can be either a TBD (Transmit Buffer Descriptors)
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or TSR (Transmit Status Requests) */
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or TSR (Transmit Status Requests) */
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#define NS_SCQE_TYPE_TBD 0x00000000
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#define NS_SCQE_TYPE_TSR 0x80000000
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#define NS_TBD_EOPDU 0x40000000
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#define NS_TBD_AAL0 0x00000000
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#define NS_TBD_AAL34 0x04000000
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@ -253,10 +235,9 @@ typedef struct ns_scqe
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#define ns_tbd_mkword_4(gfc, vpi, vci, pt, clp) \
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(cpu_to_le32((gfc) << 28 | (vpi) << 20 | (vci) << 4 | (pt) << 1 | (clp)))
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#define NS_TSR_INTENABLE 0x20000000
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#define NS_TSR_SCDISVBR 0xFFFF /* Use as scdi for VBR SCD */
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#define NS_TSR_SCDISVBR 0xFFFF /* Use as scdi for VBR SCD */
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#define ns_tsr_mkword_1(flags) \
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(cpu_to_le32(NS_SCQE_TYPE_TSR | (flags)))
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@ -273,22 +254,20 @@ typedef struct ns_scqe
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#define NS_SCQE_SIZE 16
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/* TSQ - Transmit Status Queue
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/*
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* TSQ - Transmit Status Queue
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*
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* Written by the NICStAR, read by the device driver.
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*/
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typedef struct ns_tsi
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{
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u32 word_1;
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u32 word_2;
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typedef struct ns_tsi {
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u32 word_1;
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u32 word_2;
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} ns_tsi;
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/* NOTE: The first word can be a status word copied from the TSR which
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originated the TSI, or a timer overflow indicator. In this last
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case, the value of the first word is all zeroes. */
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originated the TSI, or a timer overflow indicator. In this last
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case, the value of the first word is all zeroes. */
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#define NS_TSI_EMPTY 0x80000000
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#define NS_TSI_TIMESTAMP_MASK 0x00FFFFFF
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@ -301,12 +280,10 @@ typedef struct ns_tsi
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#define ns_tsi_init(ns_tsip) \
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((ns_tsip)->word_2 = cpu_to_le32(NS_TSI_EMPTY))
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#define NS_TSQSIZE 8192
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#define NS_TSQ_NUM_ENTRIES 1024
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#define NS_TSQ_ALIGNMENT 8192
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#define NS_TSI_SCDISVBR NS_TSR_SCDISVBR
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#define ns_tsi_tmrof(ns_tsip) \
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@ -316,26 +293,22 @@ typedef struct ns_tsi
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#define ns_tsi_getscqpos(ns_tsip) \
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(le32_to_cpu((ns_tsip)->word_1) & 0x00007FFF)
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/* NICStAR structures located in local SRAM */
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/* NICStAR structures located in local SRAM ***********************************/
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/* RCT - Receive Connection Table
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/*
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* RCT - Receive Connection Table
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*
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* Written by both the NICStAR and the device driver.
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*/
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typedef struct ns_rcte
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{
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u32 word_1;
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u32 buffer_handle;
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u32 dma_address;
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u32 aal5_crc32;
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typedef struct ns_rcte {
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u32 word_1;
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u32 buffer_handle;
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u32 dma_address;
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u32 aal5_crc32;
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} ns_rcte;
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#define NS_RCTE_BSFB 0x00200000 /* Rev. D only */
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#define NS_RCTE_BSFB 0x00200000 /* Rev. D only */
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#define NS_RCTE_NZGFC 0x00100000
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#define NS_RCTE_CONNECTOPEN 0x00080000
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#define NS_RCTE_AALMASK 0x00070000
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@ -358,25 +331,21 @@ typedef struct ns_rcte
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#define NS_RCT_ENTRY_SIZE 4 /* Number of dwords */
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/* NOTE: We could make macros to contruct the first word of the RCTE,
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but that doesn't seem to make much sense... */
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but that doesn't seem to make much sense... */
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/* FBD - Free Buffer Descriptor
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/*
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* FBD - Free Buffer Descriptor
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*
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* Written by the device driver using via the command register.
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*/
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typedef struct ns_fbd
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{
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u32 buffer_handle;
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u32 dma_address;
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typedef struct ns_fbd {
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u32 buffer_handle;
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u32 dma_address;
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} ns_fbd;
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/* TST - Transmit Schedule Table
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/*
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* TST - Transmit Schedule Table
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*
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* Written by the device driver.
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*/
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@ -385,40 +354,38 @@ typedef u32 ns_tste;
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#define NS_TST_OPCODE_MASK 0x60000000
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#define NS_TST_OPCODE_NULL 0x00000000 /* Insert null cell */
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#define NS_TST_OPCODE_FIXED 0x20000000 /* Cell from a fixed rate channel */
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#define NS_TST_OPCODE_NULL 0x00000000 /* Insert null cell */
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#define NS_TST_OPCODE_FIXED 0x20000000 /* Cell from a fixed rate channel */
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#define NS_TST_OPCODE_VARIABLE 0x40000000
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#define NS_TST_OPCODE_END 0x60000000 /* Jump */
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#define NS_TST_OPCODE_END 0x60000000 /* Jump */
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#define ns_tste_make(opcode, sramad) (opcode | sramad)
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/* NOTE:
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- When the opcode is FIXED, sramad specifies the SRAM address of the
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SCD for that fixed rate channel.
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SCD for that fixed rate channel.
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- When the opcode is END, sramad specifies the SRAM address of the
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location of the next TST entry to read.
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location of the next TST entry to read.
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*/
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/* SCD - Segmentation Channel Descriptor
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/*
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* SCD - Segmentation Channel Descriptor
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*
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* Written by both the device driver and the NICStAR
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*/
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typedef struct ns_scd
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{
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u32 word_1;
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u32 word_2;
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u32 partial_aal5_crc;
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u32 reserved;
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ns_scqe cache_a;
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ns_scqe cache_b;
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typedef struct ns_scd {
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u32 word_1;
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u32 word_2;
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u32 partial_aal5_crc;
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u32 reserved;
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ns_scqe cache_a;
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ns_scqe cache_b;
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} ns_scd;
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#define NS_SCD_BASE_MASK_VAR 0xFFFFE000 /* Variable rate */
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#define NS_SCD_BASE_MASK_FIX 0xFFFFFC00 /* Fixed rate */
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#define NS_SCD_BASE_MASK_VAR 0xFFFFE000 /* Variable rate */
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#define NS_SCD_BASE_MASK_FIX 0xFFFFFC00 /* Fixed rate */
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#define NS_SCD_TAIL_MASK_VAR 0x00001FF0
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#define NS_SCD_TAIL_MASK_FIX 0x000003F0
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#define NS_SCD_HEAD_MASK_VAR 0x00001FF0
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@ -426,13 +393,9 @@ typedef struct ns_scd
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#define NS_SCD_XMITFOREVER 0x02000000
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/* NOTE: There are other fields in word 2 of the SCD, but as they should
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not be needed in the device driver they are not defined here. */
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/* NICStAR local SRAM memory map **********************************************/
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not be needed in the device driver they are not defined here. */
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/* NICStAR local SRAM memory map */
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#define NS_RCT 0x00000
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#define NS_RCT_32_END 0x03FFF
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@ -455,100 +418,93 @@ typedef struct ns_scd
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#define NS_LGFBQ 0x1FC00
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#define NS_LGFBQ_END 0x1FFFF
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/* NISCtAR operation registers ************************************************/
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/* NISCtAR operation registers */
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/* See Section 3.4 of `IDT77211 NICStAR User Manual' from www.idt.com */
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enum ns_regs
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{
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DR0 = 0x00, /* Data Register 0 R/W*/
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DR1 = 0x04, /* Data Register 1 W */
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DR2 = 0x08, /* Data Register 2 W */
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DR3 = 0x0C, /* Data Register 3 W */
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CMD = 0x10, /* Command W */
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CFG = 0x14, /* Configuration R/W */
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STAT = 0x18, /* Status R/W */
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RSQB = 0x1C, /* Receive Status Queue Base W */
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RSQT = 0x20, /* Receive Status Queue Tail R */
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RSQH = 0x24, /* Receive Status Queue Head W */
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CDC = 0x28, /* Cell Drop Counter R/clear */
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VPEC = 0x2C, /* VPI/VCI Lookup Error Count R/clear */
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ICC = 0x30, /* Invalid Cell Count R/clear */
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RAWCT = 0x34, /* Raw Cell Tail R */
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TMR = 0x38, /* Timer R */
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TSTB = 0x3C, /* Transmit Schedule Table Base R/W */
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TSQB = 0x40, /* Transmit Status Queue Base W */
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TSQT = 0x44, /* Transmit Status Queue Tail R */
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TSQH = 0x48, /* Transmit Status Queue Head W */
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GP = 0x4C, /* General Purpose R/W */
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VPM = 0x50 /* VPI/VCI Mask W */
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enum ns_regs {
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DR0 = 0x00, /* Data Register 0 R/W */
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DR1 = 0x04, /* Data Register 1 W */
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DR2 = 0x08, /* Data Register 2 W */
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DR3 = 0x0C, /* Data Register 3 W */
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CMD = 0x10, /* Command W */
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CFG = 0x14, /* Configuration R/W */
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STAT = 0x18, /* Status R/W */
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RSQB = 0x1C, /* Receive Status Queue Base W */
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RSQT = 0x20, /* Receive Status Queue Tail R */
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RSQH = 0x24, /* Receive Status Queue Head W */
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CDC = 0x28, /* Cell Drop Counter R/clear */
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VPEC = 0x2C, /* VPI/VCI Lookup Error Count R/clear */
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ICC = 0x30, /* Invalid Cell Count R/clear */
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RAWCT = 0x34, /* Raw Cell Tail R */
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TMR = 0x38, /* Timer R */
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TSTB = 0x3C, /* Transmit Schedule Table Base R/W */
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TSQB = 0x40, /* Transmit Status Queue Base W */
|
||||
TSQT = 0x44, /* Transmit Status Queue Tail R */
|
||||
TSQH = 0x48, /* Transmit Status Queue Head W */
|
||||
GP = 0x4C, /* General Purpose R/W */
|
||||
VPM = 0x50 /* VPI/VCI Mask W */
|
||||
};
|
||||
|
||||
|
||||
/* NICStAR commands issued to the CMD register ********************************/
|
||||
|
||||
/* NICStAR commands issued to the CMD register */
|
||||
|
||||
/* Top 4 bits are command opcode, lower 28 are parameters. */
|
||||
|
||||
#define NS_CMD_NO_OPERATION 0x00000000
|
||||
/* params always 0 */
|
||||
/* params always 0 */
|
||||
|
||||
#define NS_CMD_OPENCLOSE_CONNECTION 0x20000000
|
||||
/* b19{1=open,0=close} b18-2{SRAM addr} */
|
||||
/* b19{1=open,0=close} b18-2{SRAM addr} */
|
||||
|
||||
#define NS_CMD_WRITE_SRAM 0x40000000
|
||||
/* b18-2{SRAM addr} b1-0{burst size} */
|
||||
/* b18-2{SRAM addr} b1-0{burst size} */
|
||||
|
||||
#define NS_CMD_READ_SRAM 0x50000000
|
||||
/* b18-2{SRAM addr} */
|
||||
/* b18-2{SRAM addr} */
|
||||
|
||||
#define NS_CMD_WRITE_FREEBUFQ 0x60000000
|
||||
/* b0{large buf indicator} */
|
||||
/* b0{large buf indicator} */
|
||||
|
||||
#define NS_CMD_READ_UTILITY 0x80000000
|
||||
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
|
||||
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
|
||||
|
||||
#define NS_CMD_WRITE_UTILITY 0x90000000
|
||||
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
|
||||
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
|
||||
|
||||
#define NS_CMD_OPEN_CONNECTION (NS_CMD_OPENCLOSE_CONNECTION | 0x00080000)
|
||||
#define NS_CMD_CLOSE_CONNECTION NS_CMD_OPENCLOSE_CONNECTION
|
||||
|
||||
/* NICStAR configuration bits */
|
||||
|
||||
/* NICStAR configuration bits *************************************************/
|
||||
|
||||
#define NS_CFG_SWRST 0x80000000 /* Software Reset */
|
||||
#define NS_CFG_RXPATH 0x20000000 /* Receive Path Enable */
|
||||
#define NS_CFG_SMBUFSIZE_MASK 0x18000000 /* Small Receive Buffer Size */
|
||||
#define NS_CFG_LGBUFSIZE_MASK 0x06000000 /* Large Receive Buffer Size */
|
||||
#define NS_CFG_EFBIE 0x01000000 /* Empty Free Buffer Queue
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_RSQSIZE_MASK 0x00C00000 /* Receive Status Queue Size */
|
||||
#define NS_CFG_ICACCEPT 0x00200000 /* Invalid Cell Accept */
|
||||
#define NS_CFG_IGNOREGFC 0x00100000 /* Ignore General Flow Control */
|
||||
#define NS_CFG_VPIBITS_MASK 0x000C0000 /* VPI/VCI Bits Size Select */
|
||||
#define NS_CFG_RCTSIZE_MASK 0x00030000 /* Receive Connection Table Size */
|
||||
#define NS_CFG_VCERRACCEPT 0x00008000 /* VPI/VCI Error Cell Accept */
|
||||
#define NS_CFG_RXINT_MASK 0x00007000 /* End of Receive PDU Interrupt
|
||||
Handling */
|
||||
#define NS_CFG_RAWIE 0x00000800 /* Raw Cell Qu' Interrupt Enable */
|
||||
#define NS_CFG_RSQAFIE 0x00000400 /* Receive Queue Almost Full
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_RXRM 0x00000200 /* Receive RM Cells */
|
||||
#define NS_CFG_TMRROIE 0x00000080 /* Timer Roll Over Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_TXEN 0x00000020 /* Transmit Operation Enable */
|
||||
#define NS_CFG_TXIE 0x00000010 /* Transmit Status Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_TXURIE 0x00000008 /* Transmit Under-run Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_UMODE 0x00000004 /* Utopia Mode (cell/byte) Select */
|
||||
#define NS_CFG_TSQFIE 0x00000002 /* Transmit Status Queue Full
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_PHYIE 0x00000001 /* PHY Interrupt Enable */
|
||||
#define NS_CFG_SWRST 0x80000000 /* Software Reset */
|
||||
#define NS_CFG_RXPATH 0x20000000 /* Receive Path Enable */
|
||||
#define NS_CFG_SMBUFSIZE_MASK 0x18000000 /* Small Receive Buffer Size */
|
||||
#define NS_CFG_LGBUFSIZE_MASK 0x06000000 /* Large Receive Buffer Size */
|
||||
#define NS_CFG_EFBIE 0x01000000 /* Empty Free Buffer Queue
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_RSQSIZE_MASK 0x00C00000 /* Receive Status Queue Size */
|
||||
#define NS_CFG_ICACCEPT 0x00200000 /* Invalid Cell Accept */
|
||||
#define NS_CFG_IGNOREGFC 0x00100000 /* Ignore General Flow Control */
|
||||
#define NS_CFG_VPIBITS_MASK 0x000C0000 /* VPI/VCI Bits Size Select */
|
||||
#define NS_CFG_RCTSIZE_MASK 0x00030000 /* Receive Connection Table Size */
|
||||
#define NS_CFG_VCERRACCEPT 0x00008000 /* VPI/VCI Error Cell Accept */
|
||||
#define NS_CFG_RXINT_MASK 0x00007000 /* End of Receive PDU Interrupt
|
||||
Handling */
|
||||
#define NS_CFG_RAWIE 0x00000800 /* Raw Cell Qu' Interrupt Enable */
|
||||
#define NS_CFG_RSQAFIE 0x00000400 /* Receive Queue Almost Full
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_RXRM 0x00000200 /* Receive RM Cells */
|
||||
#define NS_CFG_TMRROIE 0x00000080 /* Timer Roll Over Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_TXEN 0x00000020 /* Transmit Operation Enable */
|
||||
#define NS_CFG_TXIE 0x00000010 /* Transmit Status Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_TXURIE 0x00000008 /* Transmit Under-run Interrupt
|
||||
Enable */
|
||||
#define NS_CFG_UMODE 0x00000004 /* Utopia Mode (cell/byte) Select */
|
||||
#define NS_CFG_TSQFIE 0x00000002 /* Transmit Status Queue Full
|
||||
Interrupt Enable */
|
||||
#define NS_CFG_PHYIE 0x00000001 /* PHY Interrupt Enable */
|
||||
|
||||
#define NS_CFG_SMBUFSIZE_48 0x00000000
|
||||
#define NS_CFG_SMBUFSIZE_96 0x08000000
|
||||
@ -579,33 +535,29 @@ enum ns_regs
|
||||
#define NS_CFG_RXINT_624US 0x00003000
|
||||
#define NS_CFG_RXINT_899US 0x00004000
|
||||
|
||||
/* NICStAR STATus bits */
|
||||
|
||||
/* NICStAR STATus bits ********************************************************/
|
||||
|
||||
#define NS_STAT_SFBQC_MASK 0xFF000000 /* hi 8 bits Small Buffer Queue Count */
|
||||
#define NS_STAT_LFBQC_MASK 0x00FF0000 /* hi 8 bits Large Buffer Queue Count */
|
||||
#define NS_STAT_TSIF 0x00008000 /* Transmit Status Queue Indicator */
|
||||
#define NS_STAT_TXICP 0x00004000 /* Transmit Incomplete PDU */
|
||||
#define NS_STAT_TSQF 0x00001000 /* Transmit Status Queue Full */
|
||||
#define NS_STAT_TMROF 0x00000800 /* Timer Overflow */
|
||||
#define NS_STAT_PHYI 0x00000400 /* PHY Device Interrupt */
|
||||
#define NS_STAT_CMDBZ 0x00000200 /* Command Busy */
|
||||
#define NS_STAT_SFBQF 0x00000100 /* Small Buffer Queue Full */
|
||||
#define NS_STAT_LFBQF 0x00000080 /* Large Buffer Queue Full */
|
||||
#define NS_STAT_RSQF 0x00000040 /* Receive Status Queue Full */
|
||||
#define NS_STAT_EOPDU 0x00000020 /* End of PDU */
|
||||
#define NS_STAT_RAWCF 0x00000010 /* Raw Cell Flag */
|
||||
#define NS_STAT_SFBQE 0x00000008 /* Small Buffer Queue Empty */
|
||||
#define NS_STAT_LFBQE 0x00000004 /* Large Buffer Queue Empty */
|
||||
#define NS_STAT_RSQAF 0x00000002 /* Receive Status Queue Almost Full */
|
||||
#define NS_STAT_SFBQC_MASK 0xFF000000 /* hi 8 bits Small Buffer Queue Count */
|
||||
#define NS_STAT_LFBQC_MASK 0x00FF0000 /* hi 8 bits Large Buffer Queue Count */
|
||||
#define NS_STAT_TSIF 0x00008000 /* Transmit Status Queue Indicator */
|
||||
#define NS_STAT_TXICP 0x00004000 /* Transmit Incomplete PDU */
|
||||
#define NS_STAT_TSQF 0x00001000 /* Transmit Status Queue Full */
|
||||
#define NS_STAT_TMROF 0x00000800 /* Timer Overflow */
|
||||
#define NS_STAT_PHYI 0x00000400 /* PHY Device Interrupt */
|
||||
#define NS_STAT_CMDBZ 0x00000200 /* Command Busy */
|
||||
#define NS_STAT_SFBQF 0x00000100 /* Small Buffer Queue Full */
|
||||
#define NS_STAT_LFBQF 0x00000080 /* Large Buffer Queue Full */
|
||||
#define NS_STAT_RSQF 0x00000040 /* Receive Status Queue Full */
|
||||
#define NS_STAT_EOPDU 0x00000020 /* End of PDU */
|
||||
#define NS_STAT_RAWCF 0x00000010 /* Raw Cell Flag */
|
||||
#define NS_STAT_SFBQE 0x00000008 /* Small Buffer Queue Empty */
|
||||
#define NS_STAT_LFBQE 0x00000004 /* Large Buffer Queue Empty */
|
||||
#define NS_STAT_RSQAF 0x00000002 /* Receive Status Queue Almost Full */
|
||||
|
||||
#define ns_stat_sfbqc_get(stat) (((stat) & NS_STAT_SFBQC_MASK) >> 23)
|
||||
#define ns_stat_lfbqc_get(stat) (((stat) & NS_STAT_LFBQC_MASK) >> 15)
|
||||
|
||||
|
||||
|
||||
/* #defines which depend on other #defines ************************************/
|
||||
|
||||
/* #defines which depend on other #defines */
|
||||
|
||||
#define NS_TST0 NS_TST_FRSCD
|
||||
#define NS_TST1 (NS_TST_FRSCD + NS_TST_NUM_ENTRIES + 1)
|
||||
@ -672,8 +624,7 @@ enum ns_regs
|
||||
#define NS_CFG_TSQFIE_OPT 0x00000000
|
||||
#endif /* ENABLE_TSQFIE */
|
||||
|
||||
|
||||
/* PCI stuff ******************************************************************/
|
||||
/* PCI stuff */
|
||||
|
||||
#ifndef PCI_VENDOR_ID_IDT
|
||||
#define PCI_VENDOR_ID_IDT 0x111D
|
||||
@ -683,138 +634,119 @@ enum ns_regs
|
||||
#define PCI_DEVICE_ID_IDT_IDT77201 0x0001
|
||||
#endif /* PCI_DEVICE_ID_IDT_IDT77201 */
|
||||
|
||||
|
||||
|
||||
/* Device driver structures ***************************************************/
|
||||
|
||||
/* Device driver structures */
|
||||
|
||||
struct ns_skb_cb {
|
||||
u32 buf_type; /* BUF_SM/BUF_LG/BUF_NONE */
|
||||
u32 buf_type; /* BUF_SM/BUF_LG/BUF_NONE */
|
||||
};
|
||||
|
||||
#define NS_SKB_CB(skb) ((struct ns_skb_cb *)((skb)->cb))
|
||||
|
||||
typedef struct tsq_info
|
||||
{
|
||||
void *org;
|
||||
ns_tsi *base;
|
||||
ns_tsi *next;
|
||||
ns_tsi *last;
|
||||
typedef struct tsq_info {
|
||||
void *org;
|
||||
ns_tsi *base;
|
||||
ns_tsi *next;
|
||||
ns_tsi *last;
|
||||
} tsq_info;
|
||||
|
||||
|
||||
typedef struct scq_info
|
||||
{
|
||||
void *org;
|
||||
ns_scqe *base;
|
||||
ns_scqe *last;
|
||||
ns_scqe *next;
|
||||
volatile ns_scqe *tail; /* Not related to the nicstar register */
|
||||
unsigned num_entries;
|
||||
struct sk_buff **skb; /* Pointer to an array of pointers
|
||||
to the sk_buffs used for tx */
|
||||
u32 scd; /* SRAM address of the corresponding
|
||||
SCD */
|
||||
int tbd_count; /* Only meaningful on variable rate */
|
||||
wait_queue_head_t scqfull_waitq;
|
||||
volatile char full; /* SCQ full indicator */
|
||||
spinlock_t lock; /* SCQ spinlock */
|
||||
typedef struct scq_info {
|
||||
void *org;
|
||||
ns_scqe *base;
|
||||
ns_scqe *last;
|
||||
ns_scqe *next;
|
||||
volatile ns_scqe *tail; /* Not related to the nicstar register */
|
||||
unsigned num_entries;
|
||||
struct sk_buff **skb; /* Pointer to an array of pointers
|
||||
to the sk_buffs used for tx */
|
||||
u32 scd; /* SRAM address of the corresponding
|
||||
SCD */
|
||||
int tbd_count; /* Only meaningful on variable rate */
|
||||
wait_queue_head_t scqfull_waitq;
|
||||
volatile char full; /* SCQ full indicator */
|
||||
spinlock_t lock; /* SCQ spinlock */
|
||||
} scq_info;
|
||||
|
||||
|
||||
|
||||
typedef struct rsq_info
|
||||
{
|
||||
void *org;
|
||||
ns_rsqe *base;
|
||||
ns_rsqe *next;
|
||||
ns_rsqe *last;
|
||||
typedef struct rsq_info {
|
||||
void *org;
|
||||
ns_rsqe *base;
|
||||
ns_rsqe *next;
|
||||
ns_rsqe *last;
|
||||
} rsq_info;
|
||||
|
||||
|
||||
typedef struct skb_pool
|
||||
{
|
||||
volatile int count; /* number of buffers in the queue */
|
||||
struct sk_buff_head queue;
|
||||
typedef struct skb_pool {
|
||||
volatile int count; /* number of buffers in the queue */
|
||||
struct sk_buff_head queue;
|
||||
} skb_pool;
|
||||
|
||||
/* NOTE: for small and large buffer pools, the count is not used, as the
|
||||
actual value used for buffer management is the one read from the
|
||||
card. */
|
||||
|
||||
|
||||
typedef struct vc_map
|
||||
{
|
||||
volatile unsigned int tx:1; /* TX vc? */
|
||||
volatile unsigned int rx:1; /* RX vc? */
|
||||
struct atm_vcc *tx_vcc, *rx_vcc;
|
||||
struct sk_buff *rx_iov; /* RX iovector skb */
|
||||
scq_info *scq; /* To keep track of the SCQ */
|
||||
u32 cbr_scd; /* SRAM address of the corresponding
|
||||
SCD. 0x00000000 for UBR/VBR/ABR */
|
||||
int tbd_count;
|
||||
typedef struct vc_map {
|
||||
volatile unsigned int tx:1; /* TX vc? */
|
||||
volatile unsigned int rx:1; /* RX vc? */
|
||||
struct atm_vcc *tx_vcc, *rx_vcc;
|
||||
struct sk_buff *rx_iov; /* RX iovector skb */
|
||||
scq_info *scq; /* To keep track of the SCQ */
|
||||
u32 cbr_scd; /* SRAM address of the corresponding
|
||||
SCD. 0x00000000 for UBR/VBR/ABR */
|
||||
int tbd_count;
|
||||
} vc_map;
|
||||
|
||||
|
||||
struct ns_skb_data
|
||||
{
|
||||
struct ns_skb_data {
|
||||
struct atm_vcc *vcc;
|
||||
int iovcnt;
|
||||
};
|
||||
|
||||
#define NS_SKB(skb) (((struct ns_skb_data *) (skb)->cb))
|
||||
|
||||
|
||||
typedef struct ns_dev
|
||||
{
|
||||
int index; /* Card ID to the device driver */
|
||||
int sram_size; /* In k x 32bit words. 32 or 128 */
|
||||
void __iomem *membase; /* Card's memory base address */
|
||||
unsigned long max_pcr;
|
||||
int rct_size; /* Number of entries */
|
||||
int vpibits;
|
||||
int vcibits;
|
||||
struct pci_dev *pcidev;
|
||||
struct atm_dev *atmdev;
|
||||
tsq_info tsq;
|
||||
rsq_info rsq;
|
||||
scq_info *scq0, *scq1, *scq2; /* VBR SCQs */
|
||||
skb_pool sbpool; /* Small buffers */
|
||||
skb_pool lbpool; /* Large buffers */
|
||||
skb_pool hbpool; /* Pre-allocated huge buffers */
|
||||
skb_pool iovpool; /* iovector buffers */
|
||||
volatile int efbie; /* Empty free buf. queue int. enabled */
|
||||
volatile u32 tst_addr; /* SRAM address of the TST in use */
|
||||
volatile int tst_free_entries;
|
||||
vc_map vcmap[NS_MAX_RCTSIZE];
|
||||
vc_map *tste2vc[NS_TST_NUM_ENTRIES];
|
||||
vc_map *scd2vc[NS_FRSCD_NUM];
|
||||
buf_nr sbnr;
|
||||
buf_nr lbnr;
|
||||
buf_nr hbnr;
|
||||
buf_nr iovnr;
|
||||
int sbfqc;
|
||||
int lbfqc;
|
||||
u32 sm_handle;
|
||||
u32 sm_addr;
|
||||
u32 lg_handle;
|
||||
u32 lg_addr;
|
||||
struct sk_buff *rcbuf; /* Current raw cell buffer */
|
||||
u32 rawch; /* Raw cell queue head */
|
||||
unsigned intcnt; /* Interrupt counter */
|
||||
spinlock_t int_lock; /* Interrupt lock */
|
||||
spinlock_t res_lock; /* Card resource lock */
|
||||
typedef struct ns_dev {
|
||||
int index; /* Card ID to the device driver */
|
||||
int sram_size; /* In k x 32bit words. 32 or 128 */
|
||||
void __iomem *membase; /* Card's memory base address */
|
||||
unsigned long max_pcr;
|
||||
int rct_size; /* Number of entries */
|
||||
int vpibits;
|
||||
int vcibits;
|
||||
struct pci_dev *pcidev;
|
||||
struct atm_dev *atmdev;
|
||||
tsq_info tsq;
|
||||
rsq_info rsq;
|
||||
scq_info *scq0, *scq1, *scq2; /* VBR SCQs */
|
||||
skb_pool sbpool; /* Small buffers */
|
||||
skb_pool lbpool; /* Large buffers */
|
||||
skb_pool hbpool; /* Pre-allocated huge buffers */
|
||||
skb_pool iovpool; /* iovector buffers */
|
||||
volatile int efbie; /* Empty free buf. queue int. enabled */
|
||||
volatile u32 tst_addr; /* SRAM address of the TST in use */
|
||||
volatile int tst_free_entries;
|
||||
vc_map vcmap[NS_MAX_RCTSIZE];
|
||||
vc_map *tste2vc[NS_TST_NUM_ENTRIES];
|
||||
vc_map *scd2vc[NS_FRSCD_NUM];
|
||||
buf_nr sbnr;
|
||||
buf_nr lbnr;
|
||||
buf_nr hbnr;
|
||||
buf_nr iovnr;
|
||||
int sbfqc;
|
||||
int lbfqc;
|
||||
u32 sm_handle;
|
||||
u32 sm_addr;
|
||||
u32 lg_handle;
|
||||
u32 lg_addr;
|
||||
struct sk_buff *rcbuf; /* Current raw cell buffer */
|
||||
u32 rawch; /* Raw cell queue head */
|
||||
unsigned intcnt; /* Interrupt counter */
|
||||
spinlock_t int_lock; /* Interrupt lock */
|
||||
spinlock_t res_lock; /* Card resource lock */
|
||||
} ns_dev;
|
||||
|
||||
|
||||
/* NOTE: Each tste2vc entry relates a given TST entry to the corresponding
|
||||
CBR vc. If the entry is not allocated, it must be NULL.
|
||||
|
||||
There are two TSTs so the driver can modify them on the fly
|
||||
without stopping the transmission.
|
||||
|
||||
scd2vc allows us to find out unused fixed rate SCDs, because
|
||||
they must have a NULL pointer here. */
|
||||
CBR vc. If the entry is not allocated, it must be NULL.
|
||||
|
||||
There are two TSTs so the driver can modify them on the fly
|
||||
without stopping the transmission.
|
||||
|
||||
scd2vc allows us to find out unused fixed rate SCDs, because
|
||||
they must have a NULL pointer here. */
|
||||
|
||||
#endif /* _LINUX_NICSTAR_H_ */
|
||||
|
||||
@ -13,15 +13,15 @@ typedef void __iomem *virt_addr_t;
|
||||
|
||||
#define CYCLE_DELAY 5
|
||||
|
||||
/* This was the original definition
|
||||
/*
|
||||
This was the original definition
|
||||
#define osp_MicroDelay(microsec) \
|
||||
do { int _i = 4*microsec; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
|
||||
*/
|
||||
#define osp_MicroDelay(microsec) {unsigned long useconds = (microsec); \
|
||||
udelay((useconds));}
|
||||
|
||||
|
||||
/* The following tables represent the timing diagrams found in
|
||||
/*
|
||||
* The following tables represent the timing diagrams found in
|
||||
* the Data Sheet for the Xicor X25020 EEProm. The #defines below
|
||||
* represent the bits in the NICStAR's General Purpose register
|
||||
* that must be toggled for the corresponding actions on the EEProm
|
||||
@ -31,86 +31,80 @@ typedef void __iomem *virt_addr_t;
|
||||
/* Write Data To EEProm from SI line on rising edge of CLK */
|
||||
/* Read Data From EEProm on falling edge of CLK */
|
||||
|
||||
#define CS_HIGH 0x0002 /* Chip select high */
|
||||
#define CS_LOW 0x0000 /* Chip select low (active low)*/
|
||||
#define CLK_HIGH 0x0004 /* Clock high */
|
||||
#define CLK_LOW 0x0000 /* Clock low */
|
||||
#define SI_HIGH 0x0001 /* Serial input data high */
|
||||
#define SI_LOW 0x0000 /* Serial input data low */
|
||||
#define CS_HIGH 0x0002 /* Chip select high */
|
||||
#define CS_LOW 0x0000 /* Chip select low (active low) */
|
||||
#define CLK_HIGH 0x0004 /* Clock high */
|
||||
#define CLK_LOW 0x0000 /* Clock low */
|
||||
#define SI_HIGH 0x0001 /* Serial input data high */
|
||||
#define SI_LOW 0x0000 /* Serial input data low */
|
||||
|
||||
/* Read Status Register = 0000 0101b */
|
||||
#if 0
|
||||
static u_int32_t rdsrtab[] =
|
||||
{
|
||||
CS_HIGH | CLK_HIGH,
|
||||
CS_LOW | CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH, /* 1 */
|
||||
CLK_LOW | SI_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH /* 1 */
|
||||
static u_int32_t rdsrtab[] = {
|
||||
CS_HIGH | CLK_HIGH,
|
||||
CS_LOW | CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH, /* 1 */
|
||||
CLK_LOW | SI_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH /* 1 */
|
||||
};
|
||||
#endif /* 0 */
|
||||
|
||||
#endif /* 0 */
|
||||
|
||||
/* Read from EEPROM = 0000 0011b */
|
||||
static u_int32_t readtab[] =
|
||||
{
|
||||
/*
|
||||
CS_HIGH | CLK_HIGH,
|
||||
*/
|
||||
CS_LOW | CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH, /* 1 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH /* 1 */
|
||||
static u_int32_t readtab[] = {
|
||||
/*
|
||||
CS_HIGH | CLK_HIGH,
|
||||
*/
|
||||
CS_LOW | CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW,
|
||||
CLK_HIGH, /* 0 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH, /* 1 */
|
||||
CLK_LOW | SI_HIGH,
|
||||
CLK_HIGH | SI_HIGH /* 1 */
|
||||
};
|
||||
|
||||
|
||||
/* Clock to read from/write to the eeprom */
|
||||
static u_int32_t clocktab[] =
|
||||
{
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW
|
||||
static u_int32_t clocktab[] = {
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW,
|
||||
CLK_HIGH,
|
||||
CLK_LOW
|
||||
};
|
||||
|
||||
|
||||
#define NICSTAR_REG_WRITE(bs, reg, val) \
|
||||
while ( readl(bs + STAT) & 0x0200 ) ; \
|
||||
writel((val),(base)+(reg))
|
||||
@ -124,153 +118,131 @@ static u_int32_t clocktab[] =
|
||||
* register.
|
||||
*/
|
||||
#if 0
|
||||
u_int32_t
|
||||
nicstar_read_eprom_status( virt_addr_t base )
|
||||
u_int32_t nicstar_read_eprom_status(virt_addr_t base)
|
||||
{
|
||||
u_int32_t val;
|
||||
u_int32_t rbyte;
|
||||
int32_t i, j;
|
||||
u_int32_t val;
|
||||
u_int32_t rbyte;
|
||||
int32_t i, j;
|
||||
|
||||
/* Send read instruction */
|
||||
val = NICSTAR_REG_READ( base, NICSTAR_REG_GENERAL_PURPOSE ) & 0xFFFFFFF0;
|
||||
/* Send read instruction */
|
||||
val = NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE) & 0xFFFFFFF0;
|
||||
|
||||
for (i=0; i<ARRAY_SIZE(rdsrtab); i++)
|
||||
{
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | rdsrtab[i]) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
for (i = 0; i < ARRAY_SIZE(rdsrtab); i++) {
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | rdsrtab[i]));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
|
||||
/* Done sending instruction - now pull data off of bit 16, MSB first */
|
||||
/* Data clocked out of eeprom on falling edge of clock */
|
||||
/* Done sending instruction - now pull data off of bit 16, MSB first */
|
||||
/* Data clocked out of eeprom on falling edge of clock */
|
||||
|
||||
rbyte = 0;
|
||||
for (i=7, j=0; i>=0; i--)
|
||||
{
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]) );
|
||||
rbyte |= (((NICSTAR_REG_READ( base, NICSTAR_REG_GENERAL_PURPOSE)
|
||||
& 0x00010000) >> 16) << i);
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE, 2 );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
return rbyte;
|
||||
rbyte = 0;
|
||||
for (i = 7, j = 0; i >= 0; i--) {
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]));
|
||||
rbyte |= (((NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE)
|
||||
& 0x00010000) >> 16) << i);
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE, 2);
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
return rbyte;
|
||||
}
|
||||
#endif /* 0 */
|
||||
|
||||
#endif /* 0 */
|
||||
|
||||
/*
|
||||
* This routine will clock the Read_data function into the X2520
|
||||
* eeprom, followed by the address to read from, through the NicSTaR's General
|
||||
* Purpose register.
|
||||
*/
|
||||
|
||||
static u_int8_t
|
||||
read_eprom_byte(virt_addr_t base, u_int8_t offset)
|
||||
|
||||
static u_int8_t read_eprom_byte(virt_addr_t base, u_int8_t offset)
|
||||
{
|
||||
u_int32_t val = 0;
|
||||
int i,j=0;
|
||||
u_int8_t tempread = 0;
|
||||
u_int32_t val = 0;
|
||||
int i, j = 0;
|
||||
u_int8_t tempread = 0;
|
||||
|
||||
val = NICSTAR_REG_READ( base, NICSTAR_REG_GENERAL_PURPOSE ) & 0xFFFFFFF0;
|
||||
val = NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE) & 0xFFFFFFF0;
|
||||
|
||||
/* Send READ instruction */
|
||||
for (i=0; i<ARRAY_SIZE(readtab); i++)
|
||||
{
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | readtab[i]) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
/* Send READ instruction */
|
||||
for (i = 0; i < ARRAY_SIZE(readtab); i++) {
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | readtab[i]));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
|
||||
/* Next, we need to send the byte address to read from */
|
||||
for (i=7; i>=0; i--)
|
||||
{
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++] | ((offset >> i) & 1) ) );
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++] | ((offset >> i) & 1) ) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
/* Next, we need to send the byte address to read from */
|
||||
for (i = 7; i >= 0; i--) {
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++] | ((offset >> i) & 1)));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++] | ((offset >> i) & 1)));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
|
||||
j = 0;
|
||||
|
||||
/* Now, we can read data from the eeprom by clocking it in */
|
||||
for (i=7; i>=0; i--)
|
||||
{
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
tempread |= (((NICSTAR_REG_READ( base, NICSTAR_REG_GENERAL_PURPOSE )
|
||||
& 0x00010000) >> 16) << i);
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]) );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
j = 0;
|
||||
|
||||
NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE, 2 );
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
return tempread;
|
||||
/* Now, we can read data from the eeprom by clocking it in */
|
||||
for (i = 7; i >= 0; i--) {
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
tempread |=
|
||||
(((NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE)
|
||||
& 0x00010000) >> 16) << i);
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | clocktab[j++]));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE, 2);
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
return tempread;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
nicstar_init_eprom( virt_addr_t base )
|
||||
static void nicstar_init_eprom(virt_addr_t base)
|
||||
{
|
||||
u_int32_t val;
|
||||
u_int32_t val;
|
||||
|
||||
/*
|
||||
* turn chip select off
|
||||
*/
|
||||
val = NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE) & 0xFFFFFFF0;
|
||||
/*
|
||||
* turn chip select off
|
||||
*/
|
||||
val = NICSTAR_REG_READ(base, NICSTAR_REG_GENERAL_PURPOSE) & 0xFFFFFFF0;
|
||||
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_HIGH));
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_HIGH));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_LOW));
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_LOW));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_HIGH));
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_HIGH));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_LOW));
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
NICSTAR_REG_WRITE(base, NICSTAR_REG_GENERAL_PURPOSE,
|
||||
(val | CS_HIGH | CLK_LOW));
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* This routine will be the interface to the ReadPromByte function
|
||||
* above.
|
||||
*/
|
||||
*/
|
||||
|
||||
static void
|
||||
nicstar_read_eprom(
|
||||
virt_addr_t base,
|
||||
u_int8_t prom_offset,
|
||||
u_int8_t *buffer,
|
||||
u_int32_t nbytes )
|
||||
nicstar_read_eprom(virt_addr_t base,
|
||||
u_int8_t prom_offset, u_int8_t * buffer, u_int32_t nbytes)
|
||||
{
|
||||
u_int i;
|
||||
|
||||
for (i=0; i<nbytes; i++)
|
||||
{
|
||||
buffer[i] = read_eprom_byte( base, prom_offset );
|
||||
++prom_offset;
|
||||
osp_MicroDelay( CYCLE_DELAY );
|
||||
}
|
||||
u_int i;
|
||||
|
||||
for (i = 0; i < nbytes; i++) {
|
||||
buffer[i] = read_eprom_byte(base, prom_offset);
|
||||
++prom_offset;
|
||||
osp_MicroDelay(CYCLE_DELAY);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
void osp_MicroDelay(int x) {
|
||||
|
||||
}
|
||||
*/
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user