V4L/DVB (6133): tuner-simple: convert from tuner sub-driver into dvb_frontend module
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Mike Isely <isely@pobox.com>
Acked-by: Steven Toth <stoth@hauppauge.com>
Acked-by: Patrick Boettcher <pb@linuxtv.org>
Acked-by: Jarod Wilson <jwilson@redhat.com>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 9598a3d..8ee0be2 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -17,12 +17,14 @@
#include <linux/init.h>
#include <linux/videodev.h>
#include <media/tuner.h>
+#include <media/tuner-types.h>
#include <media/v4l2-common.h>
#include "tuner-driver.h"
#include "mt20xx.h"
#include "tda8290.h"
#include "tea5761.h"
#include "tea5767.h"
+#include "tuner-simple.h"
#define UNSET (-1U)
@@ -213,6 +215,15 @@
tda8290_attach(&t->fe, t->i2c.adapter, t->i2c.addr, &cfg);
}
+static void attach_simple_tuner(struct tuner *t)
+{
+ struct simple_tuner_config cfg = {
+ .type = t->type,
+ .tun = &tuners[t->type]
+ };
+ simple_tuner_attach(&t->fe, t->i2c.adapter, t->i2c.addr, &cfg);
+}
+
static void set_type(struct i2c_client *c, unsigned int type,
unsigned int new_mode_mask, unsigned int new_config,
int (*tuner_callback) (void *dev, int command,int arg))
@@ -290,7 +301,7 @@
buffer[2] = 0x86;
buffer[3] = 0x54;
i2c_master_send(c, buffer, 4);
- default_tuner_init(t);
+ attach_simple_tuner(t);
break;
case TUNER_PHILIPS_TD1316:
buffer[0] = 0x0b;
@@ -298,13 +309,13 @@
buffer[2] = 0x86;
buffer[3] = 0xa4;
i2c_master_send(c,buffer,4);
- default_tuner_init(t);
+ attach_simple_tuner(t);
break;
case TUNER_TDA9887:
tda9887_tuner_init(t);
break;
default:
- default_tuner_init(t);
+ attach_simple_tuner(t);
break;
}
diff --git a/drivers/media/video/tuner-driver.h b/drivers/media/video/tuner-driver.h
index 664f346..28a10da 100644
--- a/drivers/media/video/tuner-driver.h
+++ b/drivers/media/video/tuner-driver.h
@@ -72,8 +72,6 @@
/* ------------------------------------------------------------------------ */
-extern int default_tuner_init(struct tuner *t);
-
extern int tda9887_tuner_init(struct tuner *t);
/* ------------------------------------------------------------------------ */
diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c
index eca2ff2..2dbd91c 100644
--- a/drivers/media/video/tuner-simple.c
+++ b/drivers/media/video/tuner-simple.c
@@ -1,7 +1,8 @@
/*
- *
* i2c tv tuner chip device driver
* controls all those simple 4-control-bytes style tuners.
+ *
+ * This "tuner-simple" module was split apart from the original "tuner" module.
*/
#include <linux/delay.h>
#include <linux/i2c.h>
@@ -9,7 +10,14 @@
#include <media/tuner.h>
#include <media/v4l2-common.h>
#include <media/tuner-types.h>
-#include "tuner-driver.h"
+#include "tuner-i2c.h"
+#include "tuner-simple.h"
+
+static int debug = 0;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+#define PREFIX "tuner-simple "
static int offset = 0;
module_param(offset, int, 0664);
@@ -85,13 +93,18 @@
struct tuner_simple_priv {
u16 last_div;
struct tuner_i2c_props i2c_props;
+
+ unsigned int type;
+ struct tunertype *tun;
+
+ u32 frequency;
};
/* ---------------------------------------------------------------------- */
-static int tuner_getstatus(struct tuner *t)
+static int tuner_getstatus(struct dvb_frontend *fe)
{
- struct tuner_simple_priv *priv = t->priv;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
unsigned char byte;
if (1 != tuner_i2c_xfer_recv(&priv->i2c_props,&byte,1))
@@ -100,18 +113,20 @@
return byte;
}
-static int tuner_signal(struct tuner *t)
+static int tuner_signal(struct dvb_frontend *fe)
{
- return (tuner_getstatus(t) & TUNER_SIGNAL) << 13;
+ return (tuner_getstatus(fe) & TUNER_SIGNAL) << 13;
}
-static int tuner_stereo(struct tuner *t)
+static int tuner_stereo(struct dvb_frontend *fe)
{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
int stereo, status;
- status = tuner_getstatus(t);
+ status = tuner_getstatus(fe);
- switch (t->type) {
+ switch (priv->type) {
case TUNER_PHILIPS_FM1216ME_MK3:
case TUNER_PHILIPS_FM1236_MK3:
case TUNER_PHILIPS_FM1256_IH3:
@@ -126,20 +141,38 @@
}
+static int simple_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int signal = tuner_signal(fe);
+
+ *status = 0;
+
+ if (signal)
+ *status = TUNER_STATUS_LOCKED;
+ if (tuner_stereo(fe))
+ *status |= TUNER_STATUS_STEREO;
+
+ tuner_dbg("tuner-simple: Signal strength: %d\n", signal);
+
+ return 0;
+}
+
/* ---------------------------------------------------------------------- */
-static void default_set_tv_freq(struct tuner *t, unsigned int freq)
+static int simple_set_tv_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
- struct tuner_simple_priv *priv = t->priv;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
u8 config, cb, tuneraddr;
u16 div;
struct tunertype *tun;
u8 buffer[4];
int rc, IFPCoff, i, j;
enum param_type desired_type;
- struct tuner_params *params;
+ struct tuner_params *t_params;
- tun = &tuners[t->type];
+ tun = priv->tun;
/* IFPCoff = Video Intermediate Frequency - Vif:
940 =16*58.75 NTSC/J (Japan)
@@ -153,14 +186,14 @@
171.2=16*10.70 FM Radio (at set_radio_freq)
*/
- if (t->std == V4L2_STD_NTSC_M_JP) {
+ if (params->std == V4L2_STD_NTSC_M_JP) {
IFPCoff = 940;
desired_type = TUNER_PARAM_TYPE_NTSC;
- } else if ((t->std & V4L2_STD_MN) &&
- !(t->std & ~V4L2_STD_MN)) {
+ } else if ((params->std & V4L2_STD_MN) &&
+ !(params->std & ~V4L2_STD_MN)) {
IFPCoff = 732;
desired_type = TUNER_PARAM_TYPE_NTSC;
- } else if (t->std == V4L2_STD_SECAM_LC) {
+ } else if (params->std == V4L2_STD_SECAM_LC) {
IFPCoff = 543;
desired_type = TUNER_PARAM_TYPE_SECAM;
} else {
@@ -173,49 +206,49 @@
continue;
break;
}
- /* use default tuner_params if desired_type not available */
+ /* use default tuner_t_params if desired_type not available */
if (desired_type != tun->params[j].type) {
- tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
- IFPCoff,t->type);
+ tuner_dbg("IFPCoff = %d: tuner_t_params undefined for tuner %d\n",
+ IFPCoff, priv->type);
j = 0;
}
- params = &tun->params[j];
+ t_params = &tun->params[j];
- for (i = 0; i < params->count; i++) {
- if (freq > params->ranges[i].limit)
+ for (i = 0; i < t_params->count; i++) {
+ if (params->frequency > t_params->ranges[i].limit)
continue;
break;
}
- if (i == params->count) {
+ if (i == t_params->count) {
tuner_dbg("TV frequency out of range (%d > %d)",
- freq, params->ranges[i - 1].limit);
- freq = params->ranges[--i].limit;
+ params->frequency, t_params->ranges[i - 1].limit);
+ params->frequency = t_params->ranges[--i].limit;
}
- config = params->ranges[i].config;
- cb = params->ranges[i].cb;
+ config = t_params->ranges[i].config;
+ cb = t_params->ranges[i].cb;
/* i == 0 -> VHF_LO
* i == 1 -> VHF_HI
* i == 2 -> UHF */
tuner_dbg("tv: param %d, range %d\n",j,i);
- div=freq + IFPCoff + offset;
+ div=params->frequency + IFPCoff + offset;
tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
- freq / 16, freq % 16 * 100 / 16,
+ params->frequency / 16, params->frequency % 16 * 100 / 16,
IFPCoff / 16, IFPCoff % 16 * 100 / 16,
offset / 16, offset % 16 * 100 / 16,
div);
/* tv norm specific stuff for multi-norm tuners */
- switch (t->type) {
+ switch (priv->type) {
case TUNER_PHILIPS_SECAM: // FI1216MF
/* 0x01 -> ??? no change ??? */
/* 0x02 -> PAL BDGHI / SECAM L */
/* 0x04 -> ??? PAL others / SECAM others ??? */
cb &= ~0x03;
- if (t->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM
+ if (params->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM
cb |= PHILIPS_MF_SET_STD_L;
- else if (t->std & V4L2_STD_SECAM_LC)
+ else if (params->std & V4L2_STD_SECAM_LC)
cb |= PHILIPS_MF_SET_STD_LC;
else /* V4L2_STD_B|V4L2_STD_GH */
cb |= PHILIPS_MF_SET_STD_BG;
@@ -224,16 +257,16 @@
case TUNER_TEMIC_4046FM5:
cb &= ~0x0f;
- if (t->std & V4L2_STD_PAL_BG) {
+ if (params->std & V4L2_STD_PAL_BG) {
cb |= TEMIC_SET_PAL_BG;
- } else if (t->std & V4L2_STD_PAL_I) {
+ } else if (params->std & V4L2_STD_PAL_I) {
cb |= TEMIC_SET_PAL_I;
- } else if (t->std & V4L2_STD_PAL_DK) {
+ } else if (params->std & V4L2_STD_PAL_DK) {
cb |= TEMIC_SET_PAL_DK;
- } else if (t->std & V4L2_STD_SECAM_L) {
+ } else if (params->std & V4L2_STD_SECAM_L) {
cb |= TEMIC_SET_PAL_L;
}
@@ -242,13 +275,13 @@
case TUNER_PHILIPS_FQ1216ME:
cb &= ~0x0f;
- if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
+ if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
cb |= PHILIPS_SET_PAL_BGDK;
- } else if (t->std & V4L2_STD_PAL_I) {
+ } else if (params->std & V4L2_STD_PAL_I) {
cb |= PHILIPS_SET_PAL_I;
- } else if (t->std & V4L2_STD_SECAM_L) {
+ } else if (params->std & V4L2_STD_SECAM_L) {
cb |= PHILIPS_SET_PAL_L;
}
@@ -260,7 +293,7 @@
/* 0x02 -> NTSC antenna input 1 */
/* 0x03 -> NTSC antenna input 2 */
cb &= ~0x03;
- if (!(t->std & V4L2_STD_ATSC))
+ if (!(params->std & V4L2_STD_ATSC))
cb |= 2;
/* FIXME: input */
break;
@@ -280,7 +313,7 @@
buffer[2] = 0x17;
buffer[3] = 0x00;
cb &= ~0x40;
- if (t->std & V4L2_STD_ATSC) {
+ if (params->std & V4L2_STD_ATSC) {
cb |= 0x40;
buffer[1] = 0x04;
}
@@ -296,7 +329,7 @@
break;
}
- if (params->cb_first_if_lower_freq && div < priv->last_div) {
+ if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
buffer[0] = config;
buffer[1] = cb;
buffer[2] = (div>>8) & 0x7f;
@@ -308,42 +341,42 @@
buffer[3] = cb;
}
priv->last_div = div;
- if (params->has_tda9887) {
+ if (t_params->has_tda9887) {
int config = 0;
- int is_secam_l = (t->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
- !(t->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
+ int is_secam_l = (params->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
+ !(params->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
- if (t->std == V4L2_STD_SECAM_LC) {
- if (params->port1_active ^ params->port1_invert_for_secam_lc)
+ if (params->std == V4L2_STD_SECAM_LC) {
+ if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
config |= TDA9887_PORT1_ACTIVE;
- if (params->port2_active ^ params->port2_invert_for_secam_lc)
+ if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
config |= TDA9887_PORT2_ACTIVE;
}
else {
- if (params->port1_active)
+ if (t_params->port1_active)
config |= TDA9887_PORT1_ACTIVE;
- if (params->port2_active)
+ if (t_params->port2_active)
config |= TDA9887_PORT2_ACTIVE;
}
- if (params->intercarrier_mode)
+ if (t_params->intercarrier_mode)
config |= TDA9887_INTERCARRIER;
if (is_secam_l) {
- if (i == 0 && params->default_top_secam_low)
- config |= TDA9887_TOP(params->default_top_secam_low);
- else if (i == 1 && params->default_top_secam_mid)
- config |= TDA9887_TOP(params->default_top_secam_mid);
- else if (params->default_top_secam_high)
- config |= TDA9887_TOP(params->default_top_secam_high);
+ if (i == 0 && t_params->default_top_secam_low)
+ config |= TDA9887_TOP(t_params->default_top_secam_low);
+ else if (i == 1 && t_params->default_top_secam_mid)
+ config |= TDA9887_TOP(t_params->default_top_secam_mid);
+ else if (t_params->default_top_secam_high)
+ config |= TDA9887_TOP(t_params->default_top_secam_high);
}
else {
- if (i == 0 && params->default_top_low)
- config |= TDA9887_TOP(params->default_top_low);
- else if (i == 1 && params->default_top_mid)
- config |= TDA9887_TOP(params->default_top_mid);
- else if (params->default_top_high)
- config |= TDA9887_TOP(params->default_top_high);
+ if (i == 0 && t_params->default_top_low)
+ config |= TDA9887_TOP(t_params->default_top_low);
+ else if (i == 1 && t_params->default_top_mid)
+ config |= TDA9887_TOP(t_params->default_top_mid);
+ else if (t_params->default_top_high)
+ config |= TDA9887_TOP(t_params->default_top_high);
}
- if (params->default_pll_gating_18)
+ if (t_params->default_pll_gating_18)
config |= TDA9887_GATING_18;
i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
}
@@ -353,7 +386,7 @@
if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
- switch (t->type) {
+ switch (priv->type) {
case TUNER_LG_TDVS_H06XF:
/* Set the Auxiliary Byte. */
buffer[0] = buffer[2];
@@ -374,7 +407,7 @@
/* Wait until the PLL locks */
for (;;) {
if (time_after(jiffies,timeout))
- return;
+ return 0;
if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,&status_byte,1))) {
tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
break;
@@ -398,27 +431,30 @@
break;
}
}
+ return 0;
}
-static void default_set_radio_freq(struct tuner *t, unsigned int freq)
+static int simple_set_radio_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
struct tunertype *tun;
- struct tuner_simple_priv *priv = t->priv;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
u8 buffer[4];
u16 div;
int rc, j;
- struct tuner_params *params;
+ struct tuner_params *t_params;
+ unsigned int freq = params->frequency;
- tun = &tuners[t->type];
+ tun = priv->tun;
for (j = tun->count-1; j > 0; j--)
if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
break;
- /* default params (j=0) will be used if desired type wasn't found */
- params = &tun->params[j];
+ /* default t_params (j=0) will be used if desired type wasn't found */
+ t_params = &tun->params[j];
/* Select Radio 1st IF used */
- switch (params->radio_if) {
+ switch (t_params->radio_if) {
case 0: /* 10.7 MHz */
freq += (unsigned int)(10.7*16000);
break;
@@ -429,16 +465,16 @@
freq += (unsigned int)(41.3*16000);
break;
default:
- tuner_warn("Unsupported radio_if value %d\n", params->radio_if);
- return;
+ tuner_warn("Unsupported radio_if value %d\n", t_params->radio_if);
+ return 0;
}
/* Bandswitch byte */
- switch (t->type) {
+ switch (priv->type) {
case TUNER_TENA_9533_DI:
case TUNER_YMEC_TVF_5533MF:
- tuner_dbg ("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
- return;
+ tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
+ return 0;
case TUNER_PHILIPS_FM1216ME_MK3:
case TUNER_PHILIPS_FM1236_MK3:
case TUNER_PHILIPS_FMD1216ME_MK3:
@@ -461,7 +497,7 @@
break;
}
- buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) |
+ buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
TUNER_RATIO_SELECT_50; /* 50 kHz step */
/* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
@@ -469,7 +505,7 @@
freq * (1/800) */
div = (freq + 400) / 800;
- if (params->cb_first_if_lower_freq && div < priv->last_div) {
+ if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
buffer[0] = buffer[2];
buffer[1] = buffer[3];
buffer[2] = (div>>8) & 0x7f;
@@ -483,61 +519,105 @@
buffer[0],buffer[1],buffer[2],buffer[3]);
priv->last_div = div;
- if (params->has_tda9887) {
+ if (t_params->has_tda9887) {
int config = 0;
- if (params->port1_active && !params->port1_fm_high_sensitivity)
+ if (t_params->port1_active && !t_params->port1_fm_high_sensitivity)
config |= TDA9887_PORT1_ACTIVE;
- if (params->port2_active && !params->port2_fm_high_sensitivity)
+ if (t_params->port2_active && !t_params->port2_fm_high_sensitivity)
config |= TDA9887_PORT2_ACTIVE;
- if (params->intercarrier_mode)
+ if (t_params->intercarrier_mode)
config |= TDA9887_INTERCARRIER;
-/* if (params->port1_set_for_fm_mono)
+/* if (t_params->port1_set_for_fm_mono)
config &= ~TDA9887_PORT1_ACTIVE;*/
- if (params->fm_gain_normal)
+ if (t_params->fm_gain_normal)
config |= TDA9887_GAIN_NORMAL;
- if (params->radio_if == 2)
+ if (t_params->radio_if == 2)
config |= TDA9887_RIF_41_3;
i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
}
if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
+
+ return 0;
}
-static void tuner_release(struct tuner *t)
+static int simple_set_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
- kfree(t->priv);
- t->priv = NULL;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int ret = -EINVAL;
+
+ switch (params->mode) {
+ case V4L2_TUNER_RADIO:
+ ret = simple_set_radio_freq(fe, params);
+ priv->frequency = params->frequency * 125 / 2;
+ break;
+ case V4L2_TUNER_ANALOG_TV:
+ case V4L2_TUNER_DIGITAL_TV:
+ ret = simple_set_tv_freq(fe, params);
+ priv->frequency = params->frequency * 62500;
+ break;
+ }
+
+ return ret;
}
-static struct tuner_operations simple_tuner_ops = {
- .set_tv_freq = default_set_tv_freq,
- .set_radio_freq = default_set_radio_freq,
- .has_signal = tuner_signal,
- .is_stereo = tuner_stereo,
- .release = tuner_release,
+
+static int simple_release(struct dvb_frontend *fe)
+{
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ *frequency = priv->frequency;
+ return 0;
+}
+
+static struct dvb_tuner_ops simple_tuner_ops = {
+ .set_analog_params = simple_set_params,
+ .release = simple_release,
+ .get_frequency = simple_get_frequency,
+ .get_status = simple_get_status,
};
-int default_tuner_init(struct tuner *t)
+struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c_adap,
+ u8 i2c_addr,
+ struct simple_tuner_config *cfg)
{
struct tuner_simple_priv *priv = NULL;
priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL);
if (priv == NULL)
- return -ENOMEM;
- t->priv = priv;
+ return NULL;
+ fe->tuner_priv = priv;
- priv->i2c_props.addr = t->i2c.addr;
- priv->i2c_props.adap = t->i2c.adapter;
+ priv->i2c_props.addr = i2c_addr;
+ priv->i2c_props.adap = i2c_adap;
+ priv->type = cfg->type;
+ priv->tun = cfg->tun;
- tuner_info("type set to %d (%s)\n",
- t->type, tuners[t->type].name);
- strlcpy(t->i2c.name, tuners[t->type].name, sizeof(t->i2c.name));
+ memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, sizeof(struct dvb_tuner_ops));
- memcpy(&t->ops, &simple_tuner_ops, sizeof(struct tuner_operations));
+ tuner_info("type set to %d (%s)\n", cfg->type, cfg->tun->name);
- return 0;
+ strlcpy(fe->ops.tuner_ops.info.name, cfg->tun->name, sizeof(fe->ops.tuner_ops.info.name));
+
+ return fe;
}
+
+EXPORT_SYMBOL_GPL(simple_tuner_attach);
+
+MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
+MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
+MODULE_LICENSE("GPL");
+
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
diff --git a/drivers/media/video/tuner-simple.h b/drivers/media/video/tuner-simple.h
new file mode 100644
index 0000000..75cd45b
--- /dev/null
+++ b/drivers/media/video/tuner-simple.h
@@ -0,0 +1,35 @@
+/*
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __TUNER_SIMPLE_H__
+#define __TUNER_SIMPLE_H__
+
+#include <linux/i2c.h>
+#include "dvb_frontend.h"
+
+struct simple_tuner_config
+{
+ /* chip type */
+ unsigned int type;
+ struct tunertype *tun;
+};
+
+extern struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c_adap,
+ u8 i2c_addr,
+ struct simple_tuner_config *cfg);
+
+#endif /* __TUNER_SIMPLE_H__ */