Commit 6b427116 authored by Damien Le Moal's avatar Damien Le Moal
Browse files

ata: pata_parport: Fix fit3 module code indentation and style 



Fix the header, indentation and coding style in the fit3 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.

No functional changes.

Signed-off-by: default avatarDamien Le Moal <dlemoal@kernel.org>
parent 0d5e8172

drivers/ata/pata_parport/fit3.c

+104 −102
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-or-later

/*

        fit3.c        (c) 1998  Grant R. Guenther <grant@torque.net>

                          Under the terms of the GNU General Public License.



	fit3.c is a low-level protocol driver for newer models 

        of the Fidelity International Technology parallel port adapter.  

	This adapter is used in their TransDisk 3000 portable 

	hard-drives, as well as CD-ROM, PD-CD and other devices.



	The TD-2000 and certain older devices use a different protocol.

	Try the fit2 protocol module with them.



        NB:  The FIT adapters do not appear to support the control 

	registers.  So, we map ALT_STATUS to STATUS and NO-OP writes 

	to the device control register - this means that IDE reset 

	will not work on these devices.



 * (c) 1998  Grant R. Guenther <grant@torque.net>

 *

 * fit3.c is a low-level protocol driver for newer models

 * of the Fidelity International Technology parallel port adapter.

 * This adapter is used in their TransDisk 3000 portable

 * hard-drives, as well as CD-ROM, PD-CD and other devices.

 *

 * The TD-2000 and certain older devices use a different protocol.

 * Try the fit2 protocol module with them.

 *

 * NB:  The FIT adapters do not appear to support the control

 * registers.  So, we map ALT_STATUS to STATUS and NO-OP writes

 * to the device control register - this means that IDE reset

 * will not work on these devices.

 */



#include <linux/module.h>
@@ -28,74 +27,74 @@ 


#define j44(a, b)	(((a >> 3) & 0x0f) | ((b << 1) & 0xf0))



#define w7(byte)                {out_p(7,byte);}

#define w7(byte)	out_p(7, byte)

#define r7()		(in_p(7) & 0xff)



/* cont = 0 - access the IDE register file 

   cont = 1 - access the IDE command set 



/*

 * cont = 0 - access the IDE register file

 * cont = 1 - access the IDE command set

 */



static void fit3_write_regr(struct pi_adapter *pi, int cont, int regr, int val)



{	if (cont == 1) return;

{

	if (cont == 1)

		return;



	switch (pi->mode) {



	case 0:

	case 1: w2(0xc); w0(regr); w2(0x8); w2(0xc); 

	case 1:

		w2(0xc); w0(regr); w2(0x8); w2(0xc);

		w0(val); w2(0xd);

		w0(0);   w2(0xc);

		break;



	case 2: w2(0xc); w0(regr); w2(0x8); w2(0xc);

	case 2:

		w2(0xc); w0(regr); w2(0x8); w2(0xc);

		w4(val); w4(0);

		w2(0xc);

		break;



	}

}



static int fit3_read_regr(struct pi_adapter *pi, int cont, int regr)



{	int  a, b;

{

	int  a, b;



	if (cont) {

	  if (regr != 6) return 0xff;

		if (regr != 6)

			return 0xff;

		regr = 7;

	}



	switch (pi->mode) {



	case 0: w2(0xc); w0(regr + 0x10); w2(0x8); w2(0xc);

	case 0:

		w2(0xc); w0(regr + 0x10); w2(0x8); w2(0xc);

		w2(0xd); a = r1();

		w2(0xf); b = r1();

		w2(0xc);

		return j44(a, b);



	case 1: w2(0xc); w0(regr + 0x90); w2(0x8); w2(0xc);

	case 1:

		w2(0xc); w0(regr + 0x90); w2(0x8); w2(0xc);

		w2(0xec); w2(0xee); w2(0xef); a = r0();

		w2(0xc);

		return a;



	case 2: w2(0xc); w0(regr + 0x90); w2(0x8); w2(0xc); 

	case 2:

		w2(0xc); w0(regr + 0x90); w2(0x8); w2(0xc);

		w2(0xec);

		a = r4(); b = r4();

		w2(0xc);

		return a;



	}

	return -1; 



	return -1;

}



static void fit3_read_block(struct pi_adapter *pi, char *buf, int count)



{	int  k, a, b, c, d;

{

	int  k, a, b, c, d;



	switch (pi->mode) {



	case 0: w2(0xc); w0(0x10); w2(0x8); w2(0xc);

	case 0:

		w2(0xc); w0(0x10); w2(0x8); w2(0xc);

		for (k = 0; k < count / 2; k++) {

			w2(0xd); a = r1();

			w2(0xf); b = r1();
@@ -106,8 +105,8 @@ static void fit3_read_block(struct pi_adapter *pi, char *buf, int count) 
		}

		w2(0xc);

		break;



	case 1: w2(0xc); w0(0x90); w2(0x8); w2(0xc); 

	case 1:

		w2(0xc); w0(0x90); w2(0x8); w2(0xc);

		w2(0xec); w2(0xee);

		for (k = 0; k < count / 2; k++) {

			w2(0xef); a = r0();
@@ -118,59 +117,62 @@ static void fit3_read_block(struct pi_adapter *pi, char *buf, int count) 
		w2(0xec);

		w2(0xc);

		break;



	case 2: w2(0xc); w0(0x90); w2(0x8); w2(0xc); 

	case 2:

		w2(0xc); w0(0x90); w2(0x8); w2(0xc);

		w2(0xec);

		for (k=0;k<count;k++) buf[k] = r4();

		for (k = 0; k < count; k++)

			buf[k] = r4();

		w2(0xc);

		break;



	}

}



static void fit3_write_block(struct pi_adapter *pi, char *buf, int count)



{	int k;

{

	int k;



	switch (pi->mode) {



	case 0:

        case 1: w2(0xc); w0(0); w2(0x8); w2(0xc);

	case 1:

		w2(0xc); w0(0); w2(0x8); w2(0xc);

		for (k = 0; k < count / 2; k++) {

			w0(buf[2 * k]); w2(0xd);

			w0(buf[2 * k + 1]); w2(0xc);

		}

		break;



        case 2: w2(0xc); w0(0); w2(0x8); w2(0xc); 

                for (k=0;k<count;k++) w4(buf[k]);

	case 2:

		w2(0xc); w0(0); w2(0x8); w2(0xc);

		for (k = 0; k < count; k++)

			w4(buf[k]);

		w2(0xc);

		break;

	}

}



static void fit3_connect(struct pi_adapter *pi)



{       pi->saved_r0 = r0();

{

	pi->saved_r0 = r0();

	pi->saved_r2 = r2();

	w2(0xc); w0(0); w2(0xa);

	if (pi->mode == 2) {

		w2(0xc); w0(0x9); w2(0x8); w2(0xc); 

		w2(0xc); w0(0x9);

		w2(0x8); w2(0xc);

	}

}



static void fit3_disconnect(struct pi_adapter *pi)



{       w2(0xc); w0(0xa); w2(0x8); w2(0xc);

{

	w2(0xc); w0(0xa); w2(0x8); w2(0xc);

	w0(pi->saved_r0);

	w2(pi->saved_r2);

}



static void fit3_log_adapter(struct pi_adapter *pi)

{

	char *mode_string[3] = { "4-bit", "8-bit", "EPP"};



{       char    *mode_string[3] = {"4-bit","8-bit","EPP"};



	dev_info(&pi->dev, "FIT 3000 adapter at 0x%x, mode %d (%s), delay %d\n",

	dev_info(&pi->dev,

		 "FIT 3000 adapter at 0x%x, mode %d (%s), delay %d\n",

		 pi->port, pi->mode, mode_string[pi->mode], pi->delay);

}