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path: root/drivers/media/tuners/tuner-simple.c
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Diffstat (limited to 'drivers/media/tuners/tuner-simple.c')
-rw-r--r--drivers/media/tuners/tuner-simple.c1155
1 files changed, 1155 insertions, 0 deletions
diff --git a/drivers/media/tuners/tuner-simple.c b/drivers/media/tuners/tuner-simple.c
new file mode 100644
index 000000000000..39e7e583c8c0
--- /dev/null
+++ b/drivers/media/tuners/tuner-simple.c
@@ -0,0 +1,1155 @@
+/*
+ * 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>
+#include <linux/videodev2.h>
+#include <media/tuner.h>
+#include <media/v4l2-common.h>
+#include <media/tuner-types.h>
+#include "tuner-i2c.h"
+#include "tuner-simple.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+#define TUNER_SIMPLE_MAX 64
+static unsigned int simple_devcount;
+
+static int offset;
+module_param(offset, int, 0664);
+MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
+
+static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
+ { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
+static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
+ { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
+module_param_array(atv_input, int, NULL, 0644);
+module_param_array(dtv_input, int, NULL, 0644);
+MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
+MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
+
+/* ---------------------------------------------------------------------- */
+
+/* tv standard selection for Temic 4046 FM5
+ this value takes the low bits of control byte 2
+ from datasheet Rev.01, Feb.00
+ standard BG I L L2 D
+ picture IF 38.9 38.9 38.9 33.95 38.9
+ sound 1 33.4 32.9 32.4 40.45 32.4
+ sound 2 33.16
+ NICAM 33.05 32.348 33.05 33.05
+ */
+#define TEMIC_SET_PAL_I 0x05
+#define TEMIC_SET_PAL_DK 0x09
+#define TEMIC_SET_PAL_L 0x0a /* SECAM ? */
+#define TEMIC_SET_PAL_L2 0x0b /* change IF ! */
+#define TEMIC_SET_PAL_BG 0x0c
+
+/* tv tuner system standard selection for Philips FQ1216ME
+ this value takes the low bits of control byte 2
+ from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
+ standard BG DK I L L`
+ picture carrier 38.90 38.90 38.90 38.90 33.95
+ colour 34.47 34.47 34.47 34.47 38.38
+ sound 1 33.40 32.40 32.90 32.40 40.45
+ sound 2 33.16 - - - -
+ NICAM 33.05 33.05 32.35 33.05 39.80
+ */
+#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
+#define PHILIPS_SET_PAL_BGDK 0x09
+#define PHILIPS_SET_PAL_L2 0x0a
+#define PHILIPS_SET_PAL_L 0x0b
+
+/* system switching for Philips FI1216MF MK2
+ from datasheet "1996 Jul 09",
+ standard BG L L'
+ picture carrier 38.90 38.90 33.95
+ colour 34.47 34.37 38.38
+ sound 1 33.40 32.40 40.45
+ sound 2 33.16 - -
+ NICAM 33.05 33.05 39.80
+ */
+#define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
+#define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */
+#define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */
+
+/* Control byte */
+
+#define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
+#define TUNER_RATIO_SELECT_50 0x00
+#define TUNER_RATIO_SELECT_32 0x02
+#define TUNER_RATIO_SELECT_166 0x04
+#define TUNER_RATIO_SELECT_62 0x06
+
+#define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
+
+/* Status byte */
+
+#define TUNER_POR 0x80
+#define TUNER_FL 0x40
+#define TUNER_MODE 0x38
+#define TUNER_AFC 0x07
+#define TUNER_SIGNAL 0x07
+#define TUNER_STEREO 0x10
+
+#define TUNER_PLL_LOCKED 0x40
+#define TUNER_STEREO_MK3 0x04
+
+static DEFINE_MUTEX(tuner_simple_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+struct tuner_simple_priv {
+ unsigned int nr;
+ u16 last_div;
+
+ struct tuner_i2c_props i2c_props;
+ struct list_head hybrid_tuner_instance_list;
+
+ unsigned int type;
+ struct tunertype *tun;
+
+ u32 frequency;
+ u32 bandwidth;
+};
+
+/* ---------------------------------------------------------------------- */
+
+static int tuner_read_status(struct dvb_frontend *fe)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ unsigned char byte;
+
+ if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
+ return 0;
+
+ return byte;
+}
+
+static inline int tuner_signal(const int status)
+{
+ return (status & TUNER_SIGNAL) << 13;
+}
+
+static inline int tuner_stereo(const int type, const int status)
+{
+ switch (type) {
+ case TUNER_PHILIPS_FM1216ME_MK3:
+ case TUNER_PHILIPS_FM1236_MK3:
+ case TUNER_PHILIPS_FM1256_IH3:
+ case TUNER_LG_NTSC_TAPE:
+ case TUNER_TCL_MF02GIP_5N:
+ return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
+ case TUNER_PHILIPS_FM1216MK5:
+ return status | TUNER_STEREO;
+ default:
+ return status & TUNER_STEREO;
+ }
+}
+
+static inline int tuner_islocked(const int status)
+{
+ return (status & TUNER_FL);
+}
+
+static inline int tuner_afcstatus(const int status)
+{
+ return (status & TUNER_AFC) - 2;
+}
+
+
+static int simple_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int tuner_status;
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
+ tuner_status = tuner_read_status(fe);
+
+ *status = 0;
+
+ if (tuner_islocked(tuner_status))
+ *status = TUNER_STATUS_LOCKED;
+ if (tuner_stereo(priv->type, tuner_status))
+ *status |= TUNER_STATUS_STEREO;
+
+ tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
+
+ return 0;
+}
+
+static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int signal;
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
+ signal = tuner_signal(tuner_read_status(fe));
+
+ *strength = signal;
+
+ tuner_dbg("Signal strength: %d\n", signal);
+
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static inline char *tuner_param_name(enum param_type type)
+{
+ char *name;
+
+ switch (type) {
+ case TUNER_PARAM_TYPE_RADIO:
+ name = "radio";
+ break;
+ case TUNER_PARAM_TYPE_PAL:
+ name = "pal";
+ break;
+ case TUNER_PARAM_TYPE_SECAM:
+ name = "secam";
+ break;
+ case TUNER_PARAM_TYPE_NTSC:
+ name = "ntsc";
+ break;
+ case TUNER_PARAM_TYPE_DIGITAL:
+ name = "digital";
+ break;
+ default:
+ name = "unknown";
+ break;
+ }
+ return name;
+}
+
+static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
+ enum param_type desired_type)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ struct tunertype *tun = priv->tun;
+ int i;
+
+ for (i = 0; i < tun->count; i++)
+ if (desired_type == tun->params[i].type)
+ break;
+
+ /* use default tuner params if desired_type not available */
+ if (i == tun->count) {
+ tuner_dbg("desired params (%s) undefined for tuner %d\n",
+ tuner_param_name(desired_type), priv->type);
+ i = 0;
+ }
+
+ tuner_dbg("using tuner params #%d (%s)\n", i,
+ tuner_param_name(tun->params[i].type));
+
+ return &tun->params[i];
+}
+
+static int simple_config_lookup(struct dvb_frontend *fe,
+ struct tuner_params *t_params,
+ unsigned *frequency, u8 *config, u8 *cb)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int i;
+
+ for (i = 0; i < t_params->count; i++) {
+ if (*frequency > t_params->ranges[i].limit)
+ continue;
+ break;
+ }
+ if (i == t_params->count) {
+ tuner_dbg("frequency out of range (%d > %d)\n",
+ *frequency, t_params->ranges[i - 1].limit);
+ *frequency = t_params->ranges[--i].limit;
+ }
+ *config = t_params->ranges[i].config;
+ *cb = t_params->ranges[i].cb;
+
+ tuner_dbg("freq = %d.%02d (%d), range = %d, "
+ "config = 0x%02x, cb = 0x%02x\n",
+ *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
+ i, *config, *cb);
+
+ return i;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static void simple_set_rf_input(struct dvb_frontend *fe,
+ u8 *config, u8 *cb, unsigned int rf)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ switch (priv->type) {
+ case TUNER_PHILIPS_TUV1236D:
+ switch (rf) {
+ case 1:
+ *cb |= 0x08;
+ break;
+ default:
+ *cb &= ~0x08;
+ break;
+ }
+ break;
+ case TUNER_PHILIPS_FCV1236D:
+ switch (rf) {
+ case 1:
+ *cb |= 0x01;
+ break;
+ default:
+ *cb &= ~0x01;
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static int simple_std_setup(struct dvb_frontend *fe,
+ struct analog_parameters *params,
+ u8 *config, u8 *cb)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int rc;
+
+ /* tv norm specific stuff for multi-norm tuners */
+ switch (priv->type) {
+ case TUNER_PHILIPS_SECAM: /* FI1216MF */
+ /* 0x01 -> ??? no change ??? */
+ /* 0x02 -> PAL BDGHI / SECAM L */
+ /* 0x04 -> ??? PAL others / SECAM others ??? */
+ *cb &= ~0x03;
+ if (params->std & V4L2_STD_SECAM_L)
+ /* also valid for V4L2_STD_SECAM */
+ *cb |= PHILIPS_MF_SET_STD_L;
+ 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;
+ break;
+
+ case TUNER_TEMIC_4046FM5:
+ *cb &= ~0x0f;
+
+ if (params->std & V4L2_STD_PAL_BG) {
+ *cb |= TEMIC_SET_PAL_BG;
+
+ } else if (params->std & V4L2_STD_PAL_I) {
+ *cb |= TEMIC_SET_PAL_I;
+
+ } else if (params->std & V4L2_STD_PAL_DK) {
+ *cb |= TEMIC_SET_PAL_DK;
+
+ } else if (params->std & V4L2_STD_SECAM_L) {
+ *cb |= TEMIC_SET_PAL_L;
+
+ }
+ break;
+
+ case TUNER_PHILIPS_FQ1216ME:
+ *cb &= ~0x0f;
+
+ if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
+ *cb |= PHILIPS_SET_PAL_BGDK;
+
+ } else if (params->std & V4L2_STD_PAL_I) {
+ *cb |= PHILIPS_SET_PAL_I;
+
+ } else if (params->std & V4L2_STD_SECAM_L) {
+ *cb |= PHILIPS_SET_PAL_L;
+
+ }
+ break;
+
+ case TUNER_PHILIPS_FCV1236D:
+ /* 0x00 -> ATSC antenna input 1 */
+ /* 0x01 -> ATSC antenna input 2 */
+ /* 0x02 -> NTSC antenna input 1 */
+ /* 0x03 -> NTSC antenna input 2 */
+ *cb &= ~0x03;
+ if (!(params->std & V4L2_STD_ATSC))
+ *cb |= 2;
+ break;
+
+ case TUNER_MICROTUNE_4042FI5:
+ /* Set the charge pump for fast tuning */
+ *config |= TUNER_CHARGE_PUMP;
+ break;
+
+ case TUNER_PHILIPS_TUV1236D:
+ {
+ struct tuner_i2c_props i2c = priv->i2c_props;
+ /* 0x40 -> ATSC antenna input 1 */
+ /* 0x48 -> ATSC antenna input 2 */
+ /* 0x00 -> NTSC antenna input 1 */
+ /* 0x08 -> NTSC antenna input 2 */
+ u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
+ *cb &= ~0x40;
+ if (params->std & V4L2_STD_ATSC) {
+ *cb |= 0x40;
+ buffer[1] = 0x04;
+ }
+ /* set to the correct mode (analog or digital) */
+ i2c.addr = 0x0a;
+ rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
+ if (2 != rc)
+ tuner_warn("i2c i/o error: rc == %d "
+ "(should be 2)\n", rc);
+ rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
+ if (2 != rc)
+ tuner_warn("i2c i/o error: rc == %d "
+ "(should be 2)\n", rc);
+ break;
+ }
+ }
+ if (atv_input[priv->nr])
+ simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
+
+ return 0;
+}
+
+static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int rc;
+ u8 buffer[2];
+
+ buffer[0] = (config & ~0x38) | 0x18;
+ buffer[1] = aux;
+
+ tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
+
+ rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
+ if (2 != rc)
+ tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
+
+ return rc == 2 ? 0 : rc;
+}
+
+static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
+ u16 div, u8 config, u8 cb)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int rc;
+
+ switch (priv->type) {
+ case TUNER_LG_TDVS_H06XF:
+ simple_set_aux_byte(fe, config, 0x20);
+ break;
+ case TUNER_PHILIPS_FQ1216LME_MK3:
+ simple_set_aux_byte(fe, config, 0x60); /* External AGC */
+ break;
+ case TUNER_MICROTUNE_4042FI5:
+ {
+ /* FIXME - this may also work for other tuners */
+ unsigned long timeout = jiffies + msecs_to_jiffies(1);
+ u8 status_byte = 0;
+
+ /* Wait until the PLL locks */
+ for (;;) {
+ if (time_after(jiffies, timeout))
+ return 0;
+ rc = tuner_i2c_xfer_recv(&priv->i2c_props,
+ &status_byte, 1);
+ if (1 != rc) {
+ tuner_warn("i2c i/o read error: rc == %d "
+ "(should be 1)\n", rc);
+ break;
+ }
+ if (status_byte & TUNER_PLL_LOCKED)
+ break;
+ udelay(10);
+ }
+
+ /* Set the charge pump for optimized phase noise figure */
+ config &= ~TUNER_CHARGE_PUMP;
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+ buffer[2] = config;
+ buffer[3] = cb;
+ tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0], buffer[1], buffer[2], buffer[3]);
+
+ rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
+ if (4 != rc)
+ tuner_warn("i2c i/o error: rc == %d "
+ "(should be 4)\n", rc);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ 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 0;
+ case TUNER_PHILIPS_FM1216ME_MK3:
+ case TUNER_PHILIPS_FM1236_MK3:
+ case TUNER_PHILIPS_FMD1216ME_MK3:
+ case TUNER_PHILIPS_FMD1216MEX_MK3:
+ case TUNER_LG_NTSC_TAPE:
+ case TUNER_PHILIPS_FM1256_IH3:
+ case TUNER_TCL_MF02GIP_5N:
+ buffer[3] = 0x19;
+ break;
+ case TUNER_PHILIPS_FM1216MK5:
+ buffer[2] = 0x88;
+ buffer[3] = 0x09;
+ break;
+ case TUNER_TNF_5335MF:
+ buffer[3] = 0x11;
+ break;
+ case TUNER_LG_PAL_FM:
+ buffer[3] = 0xa5;
+ break;
+ case TUNER_THOMSON_DTT761X:
+ buffer[3] = 0x39;
+ break;
+ case TUNER_PHILIPS_FQ1216LME_MK3:
+ case TUNER_PHILIPS_FQ1236_MK5:
+ tuner_err("This tuner doesn't have FM\n");
+ /* Set the low band for sanity, since it covers 88-108 MHz */
+ buffer[3] = 0x01;
+ break;
+ case TUNER_MICROTUNE_4049FM5:
+ default:
+ buffer[3] = 0xa4;
+ break;
+ }
+
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int simple_set_tv_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ u8 config, cb;
+ u16 div;
+ u8 buffer[4];
+ int rc, IFPCoff, i;
+ enum param_type desired_type;
+ struct tuner_params *t_params;
+
+ /* IFPCoff = Video Intermediate Frequency - Vif:
+ 940 =16*58.75 NTSC/J (Japan)
+ 732 =16*45.75 M/N STD
+ 704 =16*44 ATSC (at DVB code)
+ 632 =16*39.50 I U.K.
+ 622.4=16*38.90 B/G D/K I, L STD
+ 592 =16*37.00 D China
+ 590 =16.36.875 B Australia
+ 543.2=16*33.95 L' STD
+ 171.2=16*10.70 FM Radio (at set_radio_freq)
+ */
+
+ if (params->std == V4L2_STD_NTSC_M_JP) {
+ IFPCoff = 940;
+ desired_type = TUNER_PARAM_TYPE_NTSC;
+ } else if ((params->std & V4L2_STD_MN) &&
+ !(params->std & ~V4L2_STD_MN)) {
+ IFPCoff = 732;
+ desired_type = TUNER_PARAM_TYPE_NTSC;
+ } else if (params->std == V4L2_STD_SECAM_LC) {
+ IFPCoff = 543;
+ desired_type = TUNER_PARAM_TYPE_SECAM;
+ } else {
+ IFPCoff = 623;
+ desired_type = TUNER_PARAM_TYPE_PAL;
+ }
+
+ t_params = simple_tuner_params(fe, desired_type);
+
+ i = simple_config_lookup(fe, t_params, &params->frequency,
+ &config, &cb);
+
+ div = params->frequency + IFPCoff + offset;
+
+ tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
+ "Offset=%d.%02d MHz, div=%0d\n",
+ 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 */
+ simple_std_setup(fe, params, &config, &cb);
+
+ if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
+ buffer[0] = config;
+ buffer[1] = cb;
+ buffer[2] = (div>>8) & 0x7f;
+ buffer[3] = div & 0xff;
+ } else {
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+ buffer[2] = config;
+ buffer[3] = cb;
+ }
+ priv->last_div = div;
+ if (t_params->has_tda9887) {
+ struct v4l2_priv_tun_config tda9887_cfg;
+ int tda_config = 0;
+ int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
+ V4L2_STD_SECAM_LC)) &&
+ !(params->std & ~(V4L2_STD_SECAM_L |
+ V4L2_STD_SECAM_LC));
+
+ tda9887_cfg.tuner = TUNER_TDA9887;
+ tda9887_cfg.priv = &tda_config;
+
+ if (params->std == V4L2_STD_SECAM_LC) {
+ if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
+ tda_config |= TDA9887_PORT1_ACTIVE;
+ if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
+ tda_config |= TDA9887_PORT2_ACTIVE;
+ } else {
+ if (t_params->port1_active)
+ tda_config |= TDA9887_PORT1_ACTIVE;
+ if (t_params->port2_active)
+ tda_config |= TDA9887_PORT2_ACTIVE;
+ }
+ if (t_params->intercarrier_mode)
+ tda_config |= TDA9887_INTERCARRIER;
+ if (is_secam_l) {
+ if (i == 0 && t_params->default_top_secam_low)
+ tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
+ else if (i == 1 && t_params->default_top_secam_mid)
+ tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
+ else if (t_params->default_top_secam_high)
+ tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
+ } else {
+ if (i == 0 && t_params->default_top_low)
+ tda_config |= TDA9887_TOP(t_params->default_top_low);
+ else if (i == 1 && t_params->default_top_mid)
+ tda_config |= TDA9887_TOP(t_params->default_top_mid);
+ else if (t_params->default_top_high)
+ tda_config |= TDA9887_TOP(t_params->default_top_high);
+ }
+ if (t_params->default_pll_gating_18)
+ tda_config |= TDA9887_GATING_18;
+ i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
+ &tda9887_cfg);
+ }
+ tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0], buffer[1], buffer[2], buffer[3]);
+
+ rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
+ if (4 != rc)
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
+
+ simple_post_tune(fe, &buffer[0], div, config, cb);
+
+ return 0;
+}
+
+static int simple_set_radio_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct tunertype *tun;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ u8 buffer[4];
+ u16 div;
+ int rc, j;
+ struct tuner_params *t_params;
+ unsigned int freq = params->frequency;
+
+ tun = priv->tun;
+
+ for (j = tun->count-1; j > 0; j--)
+ if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
+ break;
+ /* 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 (t_params->radio_if) {
+ case 0: /* 10.7 MHz */
+ freq += (unsigned int)(10.7*16000);
+ break;
+ case 1: /* 33.3 MHz */
+ freq += (unsigned int)(33.3*16000);
+ break;
+ case 2: /* 41.3 MHz */
+ freq += (unsigned int)(41.3*16000);
+ break;
+ default:
+ tuner_warn("Unsupported radio_if value %d\n",
+ t_params->radio_if);
+ return 0;
+ }
+
+ buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
+ TUNER_RATIO_SELECT_50; /* 50 kHz step */
+
+ /* Bandswitch byte */
+ simple_radio_bandswitch(fe, &buffer[0]);
+
+ /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
+ freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
+ freq * (1/800) */
+ div = (freq + 400) / 800;
+
+ 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;
+ buffer[3] = div & 0xff;
+ } else {
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+ }
+
+ tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0], buffer[1], buffer[2], buffer[3]);
+ priv->last_div = div;
+
+ if (t_params->has_tda9887) {
+ int config = 0;
+ struct v4l2_priv_tun_config tda9887_cfg;
+
+ tda9887_cfg.tuner = TUNER_TDA9887;
+ tda9887_cfg.priv = &config;
+
+ if (t_params->port1_active &&
+ !t_params->port1_fm_high_sensitivity)
+ config |= TDA9887_PORT1_ACTIVE;
+ if (t_params->port2_active &&
+ !t_params->port2_fm_high_sensitivity)
+ config |= TDA9887_PORT2_ACTIVE;
+ if (t_params->intercarrier_mode)
+ config |= TDA9887_INTERCARRIER;
+/* if (t_params->port1_set_for_fm_mono)
+ config &= ~TDA9887_PORT1_ACTIVE;*/
+ if (t_params->fm_gain_normal)
+ config |= TDA9887_GAIN_NORMAL;
+ if (t_params->radio_if == 2)
+ config |= TDA9887_RIF_41_3;
+ i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
+ &tda9887_cfg);
+ }
+ rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
+ if (4 != rc)
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
+
+ /* Write AUX byte */
+ switch (priv->type) {
+ case TUNER_PHILIPS_FM1216ME_MK3:
+ buffer[2] = 0x98;
+ buffer[3] = 0x20; /* set TOP AGC */
+ rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
+ if (4 != rc)
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
+ break;
+ }
+
+ return 0;
+}
+
+static int simple_set_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ int ret = -EINVAL;
+
+ if (priv->i2c_props.adap == NULL)
+ return -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;
+ }
+ priv->bandwidth = 0;
+
+ return ret;
+}
+
+static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
+ const u32 delsys,
+ const u32 frequency,
+ const u32 bandwidth)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ switch (priv->type) {
+ case TUNER_PHILIPS_FMD1216ME_MK3:
+ case TUNER_PHILIPS_FMD1216MEX_MK3:
+ if (bandwidth == 8000000 &&
+ frequency >= 158870000)
+ buf[3] |= 0x08;
+ break;
+ case TUNER_PHILIPS_TD1316:
+ /* determine band */
+ buf[3] |= (frequency < 161000000) ? 1 :
+ (frequency < 444000000) ? 2 : 4;
+
+ /* setup PLL filter */
+ if (bandwidth == 8000000)
+ buf[3] |= 1 << 3;
+ break;
+ case TUNER_PHILIPS_TUV1236D:
+ case TUNER_PHILIPS_FCV1236D:
+ {
+ unsigned int new_rf;
+
+ if (dtv_input[priv->nr])
+ new_rf = dtv_input[priv->nr];
+ else
+ switch (delsys) {
+ case SYS_DVBC_ANNEX_B:
+ new_rf = 1;
+ break;
+ case SYS_ATSC:
+ default:
+ new_rf = 0;
+ break;
+ }
+ simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
+ const u32 delsys,
+ const u32 freq,
+ const u32 bw)
+{
+ /* This function returns the tuned frequency on success, 0 on error */
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ struct tunertype *tun = priv->tun;
+ static struct tuner_params *t_params;
+ u8 config, cb;
+ u32 div;
+ int ret;
+ u32 frequency = freq / 62500;
+
+ if (!tun->stepsize) {
+ /* tuner-core was loaded before the digital tuner was
+ * configured and somehow picked the wrong tuner type */
+ tuner_err("attempt to treat tuner %d (%s) as digital tuner "
+ "without stepsize defined.\n",
+ priv->type, priv->tun->name);
+ return 0; /* failure */
+ }
+
+ t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
+ ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
+ if (ret < 0)
+ return 0; /* failure */
+
+ div = ((frequency + t_params->iffreq) * 62500 + offset +
+ tun->stepsize/2) / tun->stepsize;
+
+ buf[0] = div >> 8;
+ buf[1] = div & 0xff;
+ buf[2] = config;
+ buf[3] = cb;
+
+ simple_set_dvb(fe, buf, delsys, freq, bw);
+
+ tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
+ tun->name, div, buf[0], buf[1], buf[2], buf[3]);
+
+ /* calculate the frequency we set it to */
+ return (div * tun->stepsize) - t_params->iffreq;
+}
+
+static int simple_dvb_calc_regs(struct dvb_frontend *fe,
+ u8 *buf, int buf_len)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ u32 bw = c->bandwidth_hz;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ u32 frequency;
+
+ if (buf_len < 5)
+ return -EINVAL;
+
+ frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
+ if (frequency == 0)
+ return -EINVAL;
+
+ buf[0] = priv->i2c_props.addr;
+
+ priv->frequency = frequency;
+ priv->bandwidth = c->bandwidth_hz;
+
+ return 5;
+}
+
+static int simple_dvb_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ u32 bw = c->bandwidth_hz;
+ u32 freq = c->frequency;
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ u32 frequency;
+ u32 prev_freq, prev_bw;
+ int ret;
+ u8 buf[5];
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
+ prev_freq = priv->frequency;
+ prev_bw = priv->bandwidth;
+
+ frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
+ if (frequency == 0)
+ return -EINVAL;
+
+ buf[0] = priv->i2c_props.addr;
+
+ priv->frequency = frequency;
+ priv->bandwidth = bw;
+
+ /* put analog demod in standby when tuning digital */
+ if (fe->ops.analog_ops.standby)
+ fe->ops.analog_ops.standby(fe);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ /* buf[0] contains the i2c address, but *
+ * we already have it in i2c_props.addr */
+ ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
+ if (ret != 4)
+ goto fail;
+
+ return 0;
+fail:
+ /* calc_regs sets frequency and bandwidth. if we failed, unset them */
+ priv->frequency = prev_freq;
+ priv->bandwidth = prev_bw;
+
+ return ret;
+}
+
+static int simple_init(struct dvb_frontend *fe)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
+ if (priv->tun->initdata) {
+ int ret;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = tuner_i2c_xfer_send(&priv->i2c_props,
+ priv->tun->initdata + 1,
+ priv->tun->initdata[0]);
+ if (ret != priv->tun->initdata[0])
+ return ret;
+ }
+
+ return 0;
+}
+
+static int simple_sleep(struct dvb_frontend *fe)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
+ if (priv->tun->sleepdata) {
+ int ret;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = tuner_i2c_xfer_send(&priv->i2c_props,
+ priv->tun->sleepdata + 1,
+ priv->tun->sleepdata[0]);
+ if (ret != priv->tun->sleepdata[0])
+ return ret;
+ }
+
+ return 0;
+}
+
+static int simple_release(struct dvb_frontend *fe)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+
+ mutex_lock(&tuner_simple_list_mutex);
+
+ if (priv)
+ hybrid_tuner_release_state(priv);
+
+ mutex_unlock(&tuner_simple_list_mutex);
+
+ 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 int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
+{
+ struct tuner_simple_priv *priv = fe->tuner_priv;
+ *bandwidth = priv->bandwidth;
+ return 0;
+}
+
+static struct dvb_tuner_ops simple_tuner_ops = {
+ .init = simple_init,
+ .sleep = simple_sleep,
+ .set_analog_params = simple_set_params,
+ .set_params = simple_dvb_set_params,
+ .calc_regs = simple_dvb_calc_regs,
+ .release = simple_release,
+ .get_frequency = simple_get_frequency,
+ .get_bandwidth = simple_get_bandwidth,
+ .get_status = simple_get_status,
+ .get_rf_strength = simple_get_rf_strength,
+};
+
+struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c_adap,
+ u8 i2c_addr,
+ unsigned int type)
+{
+ struct tuner_simple_priv *priv = NULL;
+ int instance;
+
+ if (type >= tuner_count) {
+ printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
+ __func__, type, tuner_count-1);
+ return NULL;
+ }
+
+ /* If i2c_adap is set, check that the tuner is at the correct address.
+ * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
+ * by the digital demod via calc_regs.
+ */
+ if (i2c_adap != NULL) {
+ u8 b[1];
+ struct i2c_msg msg = {
+ .addr = i2c_addr, .flags = I2C_M_RD,
+ .buf = b, .len = 1,
+ };
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ if (1 != i2c_transfer(i2c_adap, &msg, 1))
+ printk(KERN_WARNING "tuner-simple %d-%04x: "
+ "unable to probe %s, proceeding anyway.",
+ i2c_adapter_id(i2c_adap), i2c_addr,
+ tuners[type].name);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+ }
+
+ mutex_lock(&tuner_simple_list_mutex);
+
+ instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
+ hybrid_tuner_instance_list,
+ i2c_adap, i2c_addr,
+ "tuner-simple");
+ switch (instance) {
+ case 0:
+ mutex_unlock(&tuner_simple_list_mutex);
+ return NULL;
+ case 1:
+ fe->tuner_priv = priv;
+
+ priv->type = type;
+ priv->tun = &tuners[type];
+ priv->nr = simple_devcount++;
+ break;
+ default:
+ fe->tuner_priv = priv;
+ break;
+ }
+
+ mutex_unlock(&tuner_simple_list_mutex);
+
+ memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ if (type != priv->type)
+ tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
+ type, priv->type, priv->tun->name);
+ else
+ tuner_info("type set to %d (%s)\n",
+ priv->type, priv->tun->name);
+
+ if ((debug) || ((atv_input[priv->nr] > 0) ||
+ (dtv_input[priv->nr] > 0))) {
+ if (0 == atv_input[priv->nr])
+ tuner_info("tuner %d atv rf input will be "
+ "autoselected\n", priv->nr);
+ else
+ tuner_info("tuner %d atv rf input will be "
+ "set to input %d (insmod option)\n",
+ priv->nr, atv_input[priv->nr]);
+ if (0 == dtv_input[priv->nr])
+ tuner_info("tuner %d dtv rf input will be "
+ "autoselected\n", priv->nr);
+ else
+ tuner_info("tuner %d dtv rf input will be "
+ "set to input %d (insmod option)\n",
+ priv->nr, dtv_input[priv->nr]);
+ }
+
+ strlcpy(fe->ops.tuner_ops.info.name, priv->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.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 07:43:25 +0300