From f283ebd5642d837d372f5e580d550c34dd6eef3d Mon Sep 17 00:00:00 2001 From: Jag Raman Date: Tue, 15 Aug 2017 17:02:58 -0400 Subject: [PATCH] sparc64: vcc: Add VCC debug message macros Add C macros to print debug messages from VCC module Signed-off-by: Jagannathan Raman Reviewed-by: Liam Merwick Reviewed-by: Shannon Nelson Signed-off-by: David S. Miller --- arch/sparc/kernel/ldc.c | 1 + drivers/tty/vcc.c | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index 840e0b2..1169915 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -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) { diff --git a/drivers/tty/vcc.c b/drivers/tty/vcc.c index e1b8099..4fd8dd0 100644 --- a/drivers/tty/vcc.c +++ b/drivers/tty/vcc.c @@ -5,6 +5,47 @@ #include +#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; -- 2.7.4