V4L/DVB (7597): em28xx: share the same xc3028 setup for analog and digital modes

Thanks to Devin Heitmueller <devin.heitmueller@gmail.com> and Aidan
Thornton" <makosoft@googlemail.com> for pointing some errors with the
previous scenario.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/em28xx/em28xx-cards.c

@@ -36,7 +36,6 @@
 #include <media/v4l2-common.h>
 
 #include "em28xx.h"
-#include "tuner-xc2028.h"
 
 static int tuner = -1;
 module_param(tuner, int, 0444);
@@ -553,10 +552,25 @@ void em28xx_pre_card_setup(struct em28xx *dev)
 	};
 }
 
+void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
+{
+	memset(ctl, 0, sizeof(*ctl));
+
+	ctl->fname   = XC2028_DEFAULT_FIRMWARE;
+	ctl->max_len = 64;
+	ctl->mts = em28xx_boards[dev->model].mts_firmware;
+
+	switch (dev->model) {
+	/* Add card-specific parameters for xc3028 here */
+	default:
+		ctl->demod = XC3028_FE_OREN538;
+	}
+}
+EXPORT_SYMBOL_GPL(em28xx_setup_xc3028);
+
 static void em28xx_config_tuner(struct em28xx *dev)
 {
 	struct v4l2_priv_tun_config  xc2028_cfg;
-	struct xc2028_ctrl           ctl;
 	struct tuner_setup           tun_setup;
 	struct v4l2_frequency        f;
 
@@ -571,11 +585,9 @@ static void em28xx_config_tuner(struct em28xx *dev)
 	em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
 
 	if (dev->tuner_type == TUNER_XC2028) {
-		memset(&ctl, 0, sizeof(ctl));
+		struct xc2028_ctrl           ctl;
 
-		ctl.fname   = XC2028_DEFAULT_FIRMWARE;
-		ctl.max_len = 64;
-		ctl.mts = em28xx_boards[dev->model].mts_firmware;
+		em28xx_setup_xc3028(dev, &ctl);
 
 		xc2028_cfg.tuner = TUNER_XC2028;
 		xc2028_cfg.priv  = &ctl;

drivers/media/video/em28xx/em28xx-dvb.c

@@ -20,8 +20,6 @@
 #include <media/videobuf-vmalloc.h>
 
 #include "lgdt330x.h"
-#include "tuner-xc2028.h"
-#include "tuner-xc2028-types.h"
 
 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
@@ -69,12 +67,15 @@ static int attach_xc3028(u8 addr, struct em28xx *dev)
 {
 	struct dvb_frontend *fe;
 	struct xc2028_ctrl ctl;
-	struct xc2028_config cfg = {
-		.i2c_adap  = &dev->i2c_adap,
-		.i2c_addr  = addr,
-		.ctrl      = &ctl,
-		.callback  = em28xx_tuner_callback,
-	};
+	struct xc2028_config cfg;
+
+	memset (&cfg, 0, sizeof(cfg));
+	cfg.i2c_adap  = &dev->i2c_adap;
+	cfg.i2c_addr  = addr;
+	cfg.ctrl      = &ctl;
+	cfg.callback  = em28xx_tuner_callback;
+
+	em28xx_setup_xc3028(dev, &ctl);
 
 	if (!dev->dvb.frontend) {
 		printk(KERN_ERR "%s/2: dvb frontend not attached. "

drivers/media/video/em28xx/em28xx.h

@@ -34,6 +34,7 @@
 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
 #include <media/videobuf-dvb.h>
 #endif
+#include "tuner-xc2028.h"
 
 /* Boards supported by driver */
 #define EM2800_BOARD_UNKNOWN			0
@@ -462,6 +463,7 @@ extern struct usb_device_id em28xx_id_table[];
 extern const unsigned int em28xx_bcount;
 void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir);
 int em28xx_tuner_callback(void *ptr, int command, int arg);
+void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
 
 /* Provided by em28xx-input.c */
 /* TODO: Check if the standard get_key handlers on ir-common can be used */