llprotocol.c File Reference

implementation of bus level protocol. More...

#include "local.h"
#include <assert.h>
#include "llif.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "acq32busprot.h"
#include "llprotocol.h"

Go to the source code of this file.

Defines
#define	ACQ196_TCR_MASK   0xfff
#define	SERVICE_ROLLOVER(tim, reg, mask, temp)
#define	LLCV2_POISON   0xf0000001
Functions
int	pollAck (struct MU *m)
	polls regular ack from acq32.
static int	enterLLC (struct MU *m, unsigned mode, unsigned a3, int clkpos, int trpos)
int	enterLLCSoftClock (struct MU *m, int clkpos, int trpos, int internal_loopback, u32 command_mods)
int	enterLLCExtClock (struct MU *m, int clkpos, int trpos, unsigned short divisor, int internal_loopback, u32 command_mods)
int	enterLLC_SYNC_ECM (struct MU *m, int clkpos, int trpos, unsigned short divisor, int internal_loopback, u32 command_mods, u32 init_buf_baddr)
	Enter LowLatency Mode for EXTERNAL CLOCK capture.
int	leaveLLC (struct MU *m)
u32	llWaitDmaDone (struct MU *m)
	polls until DMA has completed.
u32	llv2_extend32 (u32 old32, u32 new12)
	return 32 bit count as function of old32, new12.
u32	llv2WaitDmaDone (struct MU *m, volatile u32 *hstats)
	polls until DMA has completed.
u32	llv2WaitDmaDone_2v (struct MU *m, volatile u32 *hstats, unsigned tlatch)
	polls until DMA has completed.
void	llv2InitDmaDone (volatile u32 *hstats)
	polls until DMA has completed.
Variables
sigjmp_buf	G_env

---

Detailed Description

implementation of bus level protocol.

Definition in file llprotocol.c.

---

Define Documentation

#define ACQ196_TCR_MASK   0xfff

Definition at line 269 of file llprotocol.c.

Referenced by llv2_extend32().

#define LLCV2_POISON   0xf0000001

Definition at line 291 of file llprotocol.c.

Referenced by llv2WaitDmaDone(), and llv2WaitDmaDone_2v().

#define SERVICE_ROLLOVER	(		tim,
			reg,
			mask,
			temp
	)

Value:

temp = (reg) & (mask);                                          \
        if (((tim) & (mask)) > (temp)){                                 \
                (tim) = (((tim) & ~(mask)) | (temp)) + ((mask)+1);      \
        }else{                                                          \
                (tim) = (((tim) & ~(mask)) | (temp));                   \
        }

Definition at line 271 of file llprotocol.c.

Referenced by llv2_extend32().

---

Function Documentation

static int enterLLC	(	struct MU *	m,
		unsigned	mode,
		unsigned	a3,
		int	clkpos,
		int	trpos
	)			[static]

Definition at line 149 of file llprotocol.c.

References BP_CI_COMMAND_BIT, BP_CI_DONE_BIT, BP_FC_SET_MODE_LLC, BP_FC_SET_MODE_LLC_CLKPOL_POS, BP_FC_SET_MODE_LLC_TRPOL_POS, BP_MB_A3, BP_MB_COMMAND, BP_SET_A1, BP_SET_FUNCODE, LLC_CSR_READY, MASK, pollAck(), pollMboxBits(), PRINTF, and setMbox().

Referenced by enterLLCExtClock(), and enterLLCSoftClock().

int enterLLC_SYNC_ECM	(	struct MU *	m,
		int	clkpos,
		int	trpos,
		unsigned short	divisor,
		int	internal_loopback,
		u32	command_mods,
		u32	init_buf_baddr
	)

Enter LowLatency Mode for EXTERNAL CLOCK capture.

Definition at line 221 of file llprotocol.c.

References BP_FC_SET_LLCV2_INIT, BP_MB_A4, enterLLCExtClock(), and setMbox().

Referenced by appEnterLLC_SYNC_2V(), appEnterLLC_SYNC_2VAO32(), and appEnterLLC_SYNC_ECM().

int enterLLCExtClock	(	struct MU *	m,
		int	clkpos,
		int	trpos,
		unsigned short	divisor,
		int	internal_loopback,
		u32	command_mods
	)

Definition at line 198 of file llprotocol.c.

References BP_SET_A1, and enterLLC().

Referenced by enterLLC_SYNC_ECM(), and runTest().

int enterLLCSoftClock	(	struct MU *	m,
		int	clkpos,
		int	trpos,
		int	internal_loopback,
		u32	command_mods
	)

Definition at line 178 of file llprotocol.c.

References BP_SET_A1, and enterLLC().

Referenced by runTest().

int leaveLLC

(

struct MU *

m

)

Definition at line 235 of file llprotocol.c.

References LLC_CSR_M_ESC, and llSetCmd().

Referenced by quit_handler(), and runTest().

u32 llv2_extend32	(	u32	old32,
		u32	new12
	)

return 32 bit count as function of old32, new12.

Definition at line 281 of file llprotocol.c.

References ACQ196_TCR_MASK, and SERVICE_ROLLOVER.

Referenced by llv2WaitDmaDone(), llv2WaitDmaDone_2v(), sync_2v_updateTstats(), and v2_updateTstats().

void llv2InitDmaDone

(

volatile u32 *

hstats

)

polls until DMA has completed.

Returns tlatch guaranteed DMA done when tlatch updated V2 method does NOT poll PCI

Definition at line 363 of file llprotocol.c.

Referenced by runSYNC_2V(), runSYNC_2VAO32(), and runSYNC_ECM().

u32 llv2WaitDmaDone	(	struct MU *	m,
		volatile u32 *	hstats
	)

polls until DMA has completed.

Returns tlatch guaranteed DMA done when tlatch updated V2 method does NOT poll PCI

Todo:

old, new looks wrong!

Definition at line 293 of file llprotocol.c.

References BP_MB_LLC_TADC, LLCV2_POISON, LLCV2_STATUS_BDR, LLCV2_STATUS_TLATCH, llv2_extend32(), mask, and setMboxPollcount().

Referenced by card_v2_WaitDmaDone().

u32 llv2WaitDmaDone_2v	(	struct MU *	m,
		volatile u32 *	hstats,
		unsigned	tlatch
	)

polls until DMA has completed.

Returns tlatch guaranteed DMA done when tlatch updated V2 method does NOT poll PCI

Definition at line 331 of file llprotocol.c.

References LLC_SYNC2V_IN_LAST, LLCV2_POISON, LLCV2_STATUS_TLATCH, llv2_extend32(), mask, and setMboxPollcount().

Referenced by card_sync_2v_WaitDmaDone().

u32 llWaitDmaDone

(

struct MU *

m

)

polls until DMA has completed.

Returns tlatch guaranteed DMA done when tlatch updated

Definition at line 243 of file llprotocol.c.

References BP_MB_LLC_TADC, getMboxShadow(), llGetTlatch(), and setMboxPollcount().

Referenced by card_v1_WaitDmaDone().

int pollAck

(

struct MU *

m

)

polls regular ack from acq32.

Definition at line 131 of file llprotocol.c.

References BP_CI_ACK_BIT, BP_MB_COMMAND, getMbox(), MASK, and PRINTF.

Referenced by enterLLC().

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Variable Documentation

sigjmp_buf G_env

Definition at line 129 of file llprotocol.c.

Referenced by llPollSack(), and runTest().