Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0dbb5671 authored by Christoph Egger's avatar Christoph Egger Committed by Greg Kroah-Hartman
Browse files

serial: Tidy REMOTE_DEBUG 



REMOTE_DEBUG does already appear in 2.2 kernel sources but didn't
appear as a config Option in the initial git import 2.6.12-rc. It's
currently just used in one single place of the linux kernel and should
probably be dropped totally

Signed-off-by: default avatarChristoph Egger <siccegge@cs.fau.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 26e1e8d1

drivers/char/serial167.c

+1 −222
Original line number Original line Diff line number Diff line
@@ -176,23 +176,6 @@ static void config_setup(struct cyclades_port *); 
static void show_status(int);

static void show_status(int);

#endif

#endif





#ifdef CONFIG_REMOTE_DEBUG

static void debug_setup(void);

void queueDebugChar(int c);

int getDebugChar(void);



#define DEBUG_PORT	1

#define DEBUG_LEN	256



typedef struct {

	int in;

	int out;

	unsigned char buf[DEBUG_LEN];

} debugq;



debugq debugiq;

#endif



/*

/*

 * I have my own version of udelay(), as it is needed when initialising

 * I have my own version of udelay(), as it is needed when initialising

 * the chip, before the delay loop has been calibrated.  Should probably

 * the chip, before the delay loop has been calibrated.  Should probably
@@ -515,11 +498,6 @@ static irqreturn_t cd2401_tx_interrupt(int irq, void *dev_id) 
	/* determine the channel and change to that context */

	/* determine the channel and change to that context */

	channel = (u_short) (base_addr[CyLICR] >> 2);

	channel = (u_short) (base_addr[CyLICR] >> 2);





#ifdef CONFIG_REMOTE_DEBUG

	if (channel == DEBUG_PORT) {

		panic("TxInt on debug port!!!");

	}

#endif

	/* validate the port number (as configured and open) */

	/* validate the port number (as configured and open) */

	if ((channel < 0) || (NR_PORTS <= channel)) {

	if ((channel < 0) || (NR_PORTS <= channel)) {

		base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);

		base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
@@ -634,14 +612,6 @@ static irqreturn_t cd2401_rx_interrupt(int irq, void *dev_id) 
	info->last_active = jiffies;

	info->last_active = jiffies;

	save_cnt = char_count = base_addr[CyRFOC];

	save_cnt = char_count = base_addr[CyRFOC];





#ifdef CONFIG_REMOTE_DEBUG

	if (channel == DEBUG_PORT) {

		while (char_count--) {

			data = base_addr[CyRDR];

			queueDebugChar(data);

		}

	} else

#endif

		/* if there is nowhere to put the data, discard it */

		/* if there is nowhere to put the data, discard it */

	if (info->tty == 0) {

	if (info->tty == 0) {

		while (char_count--) {

		while (char_count--) {
@@ -2195,9 +2165,7 @@ static int __init serial167_init(void) 
		port_num++;

		port_num++;

		info++;

		info++;

	}

	}

#ifdef CONFIG_REMOTE_DEBUG



	debug_setup();

#endif

	ret = request_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt, 0,

	ret = request_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt, 0,

			  "cd2401_errors", cd2401_rxerr_interrupt);

			  "cd2401_errors", cd2401_rxerr_interrupt);

	if (ret) {

	if (ret) {
@@ -2518,193 +2486,4 @@ static int __init serial167_console_init(void) 




console_initcall(serial167_console_init);

console_initcall(serial167_console_init);





#ifdef CONFIG_REMOTE_DEBUG

void putDebugChar(int c)

{

	volatile unsigned char *base_addr = (u_char *) BASE_ADDR;

	unsigned long flags;

	volatile u_char sink;

	u_char ier;

	int port;



	local_irq_save(flags);



	/* Ensure transmitter is enabled! */



	port = DEBUG_PORT;

	base_addr[CyCAR] = (u_char) port;

	while (base_addr[CyCCR])

		;

	base_addr[CyCCR] = CyENB_XMTR;



	ier = base_addr[CyIER];

	base_addr[CyIER] = CyTxMpty;



	while (1) {

		if (pcc2chip[PccSCCTICR] & 0x20) {

			/* We have a Tx int. Acknowledge it */

			sink = pcc2chip[PccTPIACKR];

			if ((base_addr[CyLICR] >> 2) == port) {

				base_addr[CyTDR] = c;

				base_addr[CyTEOIR] = 0;

				break;

			} else

				base_addr[CyTEOIR] = CyNOTRANS;

		}

	}



	base_addr[CyIER] = ier;



	local_irq_restore(flags);

}



int getDebugChar()

{

	volatile unsigned char *base_addr = (u_char *) BASE_ADDR;

	unsigned long flags;

	volatile u_char sink;

	u_char ier;

	int port;

	int i, c;



	i = debugiq.out;

	if (i != debugiq.in) {

		c = debugiq.buf[i];

		if (++i == DEBUG_LEN)

			i = 0;

		debugiq.out = i;

		return c;

	}

	/* OK, nothing in queue, wait in poll loop */



	local_irq_save(flags);



	/* Ensure receiver is enabled! */



	port = DEBUG_PORT;

	base_addr[CyCAR] = (u_char) port;

#if 0

	while (base_addr[CyCCR])

		;

	base_addr[CyCCR] = CyENB_RCVR;

#endif

	ier = base_addr[CyIER];

	base_addr[CyIER] = CyRxData;



	while (1) {

		if (pcc2chip[PccSCCRICR] & 0x20) {

			/* We have a Rx int. Acknowledge it */

			sink = pcc2chip[PccRPIACKR];

			if ((base_addr[CyLICR] >> 2) == port) {

				int cnt = base_addr[CyRFOC];

				while (cnt-- > 0) {

					c = base_addr[CyRDR];

					if (c == 0)

						printk

						    ("!! debug char is null (cnt=%d) !!",

						     cnt);

					else

						queueDebugChar(c);

				}

				base_addr[CyREOIR] = 0;

				i = debugiq.out;

				if (i == debugiq.in)

					panic("Debug input queue empty!");

				c = debugiq.buf[i];

				if (++i == DEBUG_LEN)

					i = 0;

				debugiq.out = i;

				break;

			} else

				base_addr[CyREOIR] = CyNOTRANS;

		}

	}



	base_addr[CyIER] = ier;



	local_irq_restore(flags);



	return (c);

}



void queueDebugChar(int c)

{

	int i;



	i = debugiq.in;

	debugiq.buf[i] = c;

	if (++i == DEBUG_LEN)

		i = 0;

	if (i != debugiq.out)

		debugiq.in = i;

}



static void debug_setup()

{

	unsigned long flags;

	volatile unsigned char *base_addr = (u_char *) BASE_ADDR;

	int i, cflag;



	cflag = B19200;



	local_irq_save(flags);



	for (i = 0; i < 4; i++) {

		base_addr[CyCAR] = i;

		base_addr[CyLICR] = i << 2;

	}



	debugiq.in = debugiq.out = 0;



	base_addr[CyCAR] = DEBUG_PORT;



	/* baud rate */

	i = cflag & CBAUD;



	base_addr[CyIER] = 0;



	base_addr[CyCMR] = CyASYNC;

	base_addr[CyLICR] = DEBUG_PORT << 2;

	base_addr[CyLIVR] = 0x5c;



	/* tx and rx baud rate */



	base_addr[CyTCOR] = baud_co[i];

	base_addr[CyTBPR] = baud_bpr[i];

	base_addr[CyRCOR] = baud_co[i] >> 5;

	base_addr[CyRBPR] = baud_bpr[i];



	/* set line characteristics  according configuration */



	base_addr[CySCHR1] = 0;

	base_addr[CySCHR2] = 0;

	base_addr[CySCRL] = 0;

	base_addr[CySCRH] = 0;

	base_addr[CyCOR1] = Cy_8_BITS | CyPARITY_NONE;

	base_addr[CyCOR2] = 0;

	base_addr[CyCOR3] = Cy_1_STOP;

	base_addr[CyCOR4] = baud_cor4[i];

	base_addr[CyCOR5] = 0;

	base_addr[CyCOR6] = 0;

	base_addr[CyCOR7] = 0;



	write_cy_cmd(base_addr, CyINIT_CHAN);

	write_cy_cmd(base_addr, CyENB_RCVR);



	base_addr[CyCAR] = DEBUG_PORT;	/* !!! Is this needed? */



	base_addr[CyRTPRL] = 2;

	base_addr[CyRTPRH] = 0;



	base_addr[CyMSVR1] = CyRTS;

	base_addr[CyMSVR2] = CyDTR;



	base_addr[CyIER] = CyRxData;



	local_irq_restore(flags);



}				/* debug_setup */



#endif



MODULE_LICENSE("GPL");
 
MODULE_LICENSE("GPL");