From 12855cac87218d0c92ffdebb7270cec040cf5a6a Mon Sep 17 00:00:00 2001
From: Manu Abraham <abraham.manu@gmail.com>
Date: Fri, 4 Dec 2009 05:09:04 -0300
Subject: [PATCH] V4L/DVB (13740): [Mantis] Schedule the work instead of
 handling the task directly

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/dvb/mantis/mantis_common.h |  4 ++++
 drivers/media/dvb/mantis/mantis_evm.c    | 17 +++++++----------
 drivers/media/dvb/mantis/mantis_link.h   |  4 +++-
 drivers/media/dvb/mantis/mantis_pci.c    |  2 +-
 4 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/media/dvb/mantis/mantis_common.h b/drivers/media/dvb/mantis/mantis_common.h
index f9891ebcfb0d..7f1cfad74883 100644
--- a/drivers/media/dvb/mantis/mantis_common.h
+++ b/drivers/media/dvb/mantis/mantis_common.h
@@ -151,4 +151,8 @@ extern int mantis_dvb_exit(struct mantis_pci *mantis);
 extern void mantis_dma_xfer(unsigned long data);
 extern void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value);
 
+extern struct dvb_device *mantis_ca_init(struct mantis_pci *mantis);
+extern void mantis_ca_exit(struct mantis_pci *mantis);
+
+
 #endif //__MANTIS_COMMON_H
diff --git a/drivers/media/dvb/mantis/mantis_evm.c b/drivers/media/dvb/mantis/mantis_evm.c
index c35ddd868f89..745148399981 100644
--- a/drivers/media/dvb/mantis/mantis_evm.c
+++ b/drivers/media/dvb/mantis/mantis_evm.c
@@ -22,9 +22,9 @@
 #include "mantis_link.h"
 #include "mantis_hif.h"
 
-void mantis_hifevm_tasklet(unsigned long data)
+static void mantis_hifevm_work(struct work_struct *work)
 {
-	struct mantis_ca *ca = (struct mantis_ca *) data;
+	struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
 	struct mantis_pci *mantis = ca->ca_priv;
 
 	u32 gpif_stat, gpif_mask;
@@ -38,15 +38,13 @@ void mantis_hifevm_tasklet(unsigned long data)
 		if (gpif_stat & MANTIS_CARD_PLUGIN) {
 			dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
 			mmwrite(0xdada0000, MANTIS_CARD_RESET);
-			// Plugin call here
-			gpif_stat = 0; // crude !
+			mantis_event_cam_plugin(ca);
 		}
 	} else {
 		if (gpif_stat & MANTIS_CARD_PLUGOUT) {
 			dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
 			mmwrite(0xdada0000, MANTIS_CARD_RESET);
-			// Unplug call here
-			gpif_stat = 0; // crude !
+			mantis_event_cam_unplug(ca);
 		}
 	}
 
@@ -91,9 +89,9 @@ int mantis_evmgr_init(struct mantis_ca *ca)
 	struct mantis_pci *mantis = ca->ca_priv;
 
 	dprintk(verbose, MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
-	tasklet_init(&ca->hif_evm_tasklet, mantis_hifevm_tasklet, (unsigned long) ca);
-
+	INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
 	mantis_pcmcia_init(ca);
+	schedule_work(&ca->hif_evm_work);
 
 	return 0;
 }
@@ -103,7 +101,6 @@ void mantis_evmgr_exit(struct mantis_ca *ca)
 	struct mantis_pci *mantis = ca->ca_priv;
 
 	dprintk(verbose, MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
-	tasklet_kill(&ca->hif_evm_tasklet);
-
+	flush_scheduled_work();
 	mantis_pcmcia_exit(ca);
 }
diff --git a/drivers/media/dvb/mantis/mantis_link.h b/drivers/media/dvb/mantis/mantis_link.h
index a45dd7185e06..33b39b781d2e 100644
--- a/drivers/media/dvb/mantis/mantis_link.h
+++ b/drivers/media/dvb/mantis/mantis_link.h
@@ -21,6 +21,8 @@
 #ifndef __MANTIS_LINK_H
 #define __MANTIS_LINK_H
 
+#include <linux/workqueue.h>
+
 enum mantis_sbuf_status {
 	MANTIS_SBUF_DATA_AVAIL		= 1,
 	MANTIS_SBUF_DATA_EMPTY		= 2,
@@ -40,7 +42,7 @@ enum mantis_slot_state {
 struct mantis_ca {
 	struct mantis_slot		slot;
 
-	struct tasklet_struct		hif_evm_tasklet;
+	struct work_struct		hif_evm_work;
 
 	u32				hif_event;
 	wait_queue_head_t		hif_opdone_wq;
diff --git a/drivers/media/dvb/mantis/mantis_pci.c b/drivers/media/dvb/mantis/mantis_pci.c
index 814c6ace3d37..6eecd54a4457 100644
--- a/drivers/media/dvb/mantis/mantis_pci.c
+++ b/drivers/media/dvb/mantis/mantis_pci.c
@@ -77,7 +77,7 @@ static irqreturn_t mantis_pci_irq(int irq, void *dev_id)
 	}
 	if (stat & MANTIS_INT_IRQ0) {
 		dprintk(verbose, MANTIS_DEBUG, 0, "* INT IRQ-0 *");
-		tasklet_schedule(&ca->hif_evm_tasklet);
+		schedule_work(&ca->hif_evm_work);
 	}
 	if (stat & MANTIS_INT_IRQ1) {
 		dprintk(verbose, MANTIS_DEBUG, 0, "* INT IRQ-1 *");
-- 
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