diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:09:32 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:09:32 -0700 |
commit | c634920abaf9c0a93266a57beff6fce9d3852cb2 (patch) | |
tree | 5ac85f54905a8cd3b12b262c66189084cbff54fc /drivers/media/video/tuner-simple.c | |
parent | 6abd2c860e34add677de50e8b134f5af6f4b0893 (diff) | |
parent | a991f44b79fa49b281eb078eed4a76a42101012a (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (310 commits)
V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry
V4L/DVB (6315): pvrusb2: Change list_for_each+list_entry to list_for_each_entry
V4L/DVB (6314): saa7134: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6313): ivtv: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6312): cx88: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6311): dvb: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS
V4L/DVB (6307): V4L: w9968cf, remove bad usage of ERESTARTSYS
V4L/DVB (6306): Few clenups for saa7134 resume code
V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core
V4L/DVB (6301): pvrusb: Update DEBUGIFC sysfs to kernel 2.6.13+
V4L/DVB (6300): CodingStyle cleanup
V4L/DVB (6299): dvb: Add dependencies for VIDEOBUF_DVB
V4L/DVB (6297): cx23885: remove wrong Kconfig selection of VIDEOBUF
V4L/DVB (6296): dib0700: add support for AverMedia DVB-T Express card
V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115
V4L/DVB (6293): V4L: convert struct class_device to struct device
V4L/DVB (6292): videobuf_core init always require callback implementation
V4L/DVB (6291): Fix: avoid oops on some SMP machines
V4L/DVB (6290): remove videobuf_set_pci_ops
...
Diffstat (limited to 'drivers/media/video/tuner-simple.c')
-rw-r--r-- | drivers/media/video/tuner-simple.c | 397 |
1 files changed, 264 insertions, 133 deletions
diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c index 2d57e8bc0db..7b93d3b1f4c 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); @@ -82,59 +90,102 @@ MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner"); #define TUNER_PLL_LOCKED 0x40 #define TUNER_STEREO_MK3 0x04 +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 i2c_client *c) +static int tuner_read_status(struct dvb_frontend *fe) { + struct tuner_simple_priv *priv = fe->tuner_priv; unsigned char byte; - if (1 != i2c_master_recv(c,&byte,1)) + if (1 != tuner_i2c_xfer_recv(&priv->i2c_props,&byte,1)) return 0; return byte; } -static int tuner_signal(struct i2c_client *c) +static inline int tuner_signal(const int status) { - return (tuner_getstatus(c) & TUNER_SIGNAL) << 13; + return (status & TUNER_SIGNAL) << 13; } -static int tuner_stereo(struct i2c_client *c) +static inline int tuner_stereo(const int type, const int status) { - int stereo, status; - struct tuner *t = i2c_get_clientdata(c); - - status = tuner_getstatus (c); - - switch (t->type) { + switch (type) { case TUNER_PHILIPS_FM1216ME_MK3: case TUNER_PHILIPS_FM1236_MK3: case TUNER_PHILIPS_FM1256_IH3: case TUNER_LG_NTSC_TAPE: - stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3); - break; + return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3); default: - stereo = status & TUNER_STEREO; + return status & TUNER_STEREO; } +} + +static inline int tuner_islocked(const int status) +{ + return (status & TUNER_FL); +} - return stereo; +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 = 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 = tuner_signal(tuner_read_status(fe)); + + *strength = signal; + + tuner_dbg("Signal strength: %d\n", signal); + + return 0; +} + /* ---------------------------------------------------------------------- */ -static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) +static int simple_set_tv_freq(struct dvb_frontend *fe, + struct analog_parameters *params) { - struct tuner *t = i2c_get_clientdata(c); + 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) @@ -148,14 +199,14 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) 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 { @@ -168,49 +219,49 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) 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; @@ -219,16 +270,16 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) 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; } @@ -237,13 +288,13 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) 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; } @@ -255,7 +306,7 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) /* 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; @@ -275,23 +326,23 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) 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; } /* set to the correct mode (analog or digital) */ - tuneraddr = c->addr; - c->addr = 0x0a; - if (2 != (rc = i2c_master_send(c,&buffer[0],2))) + tuneraddr = priv->i2c_props.addr; + priv->i2c_props.addr = 0x0a; + if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[0],2))) tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc); - if (2 != (rc = i2c_master_send(c,&buffer[2],2))) + if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[2],2))) tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc); - c->addr = tuneraddr; + priv->i2c_props.addr = tuneraddr; /* FIXME: input */ break; } - if (params->cb_first_if_lower_freq && div < t->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; @@ -302,53 +353,53 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) buffer[2] = config; buffer[3] = cb; } - t->last_div = div; - if (params->has_tda9887) { + priv->last_div = div; + 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(c->adapter, TDA9887_SET_CONFIG, &config); + i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config); } tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", buffer[0],buffer[1],buffer[2],buffer[3]); - if (4 != (rc = i2c_master_send(c,buffer,4))) + 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]; @@ -357,7 +408,7 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) buffer[1] = 0x20; tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]); - if (2 != (rc = i2c_master_send(c,buffer,2))) + if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,2))) tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc); break; case TUNER_MICROTUNE_4042FI5: @@ -369,8 +420,8 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) /* Wait until the PLL locks */ for (;;) { if (time_after(jiffies,timeout)) - return; - if (1 != (rc = i2c_master_recv(c,&status_byte,1))) { + 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; } @@ -388,68 +439,86 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", buffer[0],buffer[1],buffer[2],buffer[3]); - if (4 != (rc = i2c_master_send(c,buffer,4))) + 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); break; } } + return 0; } -static void default_set_radio_freq(struct i2c_client *c, unsigned int freq) +static int simple_set_radio_freq(struct dvb_frontend *fe, + struct analog_parameters *params) { struct tunertype *tun; - struct tuner *t = i2c_get_clientdata(c); + struct tuner_simple_priv *priv = fe->tuner_priv; u8 buffer[4]; u16 div; int rc, j; - enum param_type desired_type = TUNER_PARAM_TYPE_RADIO; - struct tuner_params *params; + struct tuner_params *t_params; + unsigned int freq = params->frequency; - tun = &tuners[t->type]; + tun = priv->tun; - for (j = 0; j < tun->count-1; j++) { - if (desired_type != tun->params[j].type) - continue; + 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; } - /* use default tuner_params if desired_type not available */ - if (desired_type != tun->params[j].type) - j = 0; - - div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */ - params = &tun->params[j]; - buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */ - switch (t->type) { + /* Bandswitch byte */ + switch (priv->type) { case TUNER_TENA_9533_DI: case TUNER_YMEC_TVF_5533MF: - tuner_dbg ("This tuner doesn't have FM. Most cards has 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: case TUNER_LG_NTSC_TAPE: + case TUNER_PHILIPS_FM1256_IH3: buffer[3] = 0x19; break; case TUNER_TNF_5335MF: buffer[3] = 0x11; break; - case TUNER_PHILIPS_FM1256_IH3: - div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */ - buffer[3] = 0x19; - break; case TUNER_LG_PAL_FM: buffer[3] = 0xa5; break; - case TUNER_MICROTUNE_4049FM5: - div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */ - buffer[3] = 0xa4; + case TUNER_THOMSON_DTT761X: + buffer[3] = 0x39; break; + case TUNER_MICROTUNE_4049FM5: default: buffer[3] = 0xa4; break; } - if (params->cb_first_if_lower_freq && div < t->last_div) { + + 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 + 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; @@ -461,46 +530,108 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq) tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n", buffer[0],buffer[1],buffer[2],buffer[3]); - t->last_div = div; + 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; - i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config); + 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 = i2c_master_send(c,buffer,4))) + 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 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, +static int simple_set_params(struct dvb_frontend *fe, + struct analog_parameters *params) +{ + 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 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, + .get_rf_strength = simple_get_rf_strength, }; -int default_tuner_init(struct i2c_client *c) +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 *t = i2c_get_clientdata(c); + struct tuner_simple_priv *priv = NULL; - tuner_info("type set to %d (%s)\n", - t->type, tuners[t->type].name); - strlcpy(c->name, tuners[t->type].name, sizeof(c->name)); + priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL); + if (priv == NULL) + return NULL; + fe->tuner_priv = priv; - memcpy(&t->ops, &simple_tuner_ops, sizeof(struct tuner_operations)); + priv->i2c_props.addr = i2c_addr; + priv->i2c_props.adap = i2c_adap; + priv->type = cfg->type; + priv->tun = cfg->tun; - return 0; + memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, sizeof(struct dvb_tuner_ops)); + + tuner_info("type set to %d (%s)\n", cfg->type, cfg->tun->name); + + 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. * --------------------------------------------------------------------------- |