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Commit f283ebd5 authored by Jag Raman's avatar Jag Raman Committed by David S. Miller
Browse files

sparc64: vcc: Add VCC debug message macros 



Add C macros to print debug messages from VCC module

Signed-off-by: default avatarJagannathan Raman <jag.raman@oracle.com>
Reviewed-by: default avatarLiam Merwick <liam.merwick@oracle.com>
Reviewed-by: default avatarShannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 55bd2133

arch/sparc/kernel/ldc.c

+1 −0
Original line number Diff line number Diff line
@@ -1493,6 +1493,7 @@ void __ldc_print(struct ldc_channel *lp, const char *caller) 
		lp->tx_head, lp->tx_tail, lp->tx_num_entries,

		lp->rcv_nxt, lp->snd_nxt);

}

EXPORT_SYMBOL(__ldc_print);



static int write_raw(struct ldc_channel *lp, const void *buf, unsigned int size)

{

drivers/tty/vcc.c

+41 −0
Original line number Diff line number Diff line
@@ -5,6 +5,47 @@ 


#include <linux/module.h>



#define DRV_MODULE_NAME		"vcc"

#define DRV_MODULE_VERSION	"1.1"

#define DRV_MODULE_RELDATE	"July 1, 2017"



MODULE_DESCRIPTION("Sun LDOM virtual console concentrator driver");

MODULE_LICENSE("GPL");

MODULE_VERSION(DRV_MODULE_VERSION);



int vcc_dbg;

int vcc_dbg_ldc;

int vcc_dbg_vio;



module_param(vcc_dbg, uint, 0664);

module_param(vcc_dbg_ldc, uint, 0664);

module_param(vcc_dbg_vio, uint, 0664);



#define VCC_DBG_DRV	0x1

#define VCC_DBG_LDC	0x2

#define VCC_DBG_PKT	0x4



#define vccdbg(f, a...)						\

	do {							\

		if (vcc_dbg & VCC_DBG_DRV)			\

			pr_info(f, ## a);			\

	} while (0)						\



#define vccdbgl(l)						\

	do {							\

		if (vcc_dbg & VCC_DBG_LDC)			\

			ldc_print(l);				\

	} while (0)						\



#define vccdbgp(pkt)						\

	do {							\

		if (vcc_dbg & VCC_DBG_PKT) {			\

			int i;					\

			for (i = 0; i < pkt.tag.stype; i++)	\

				pr_info("[%c]", pkt.data[i]);	\

		}						\

	} while (0)						\



static int __init vcc_init(void)

{

	return 0;