drivers/media/video/saa7134/saa7134-dvb.c

   1 /*
   2  * $Id: saa7134-dvb.c,v 1.12 2005/02/18 12:28:29 kraxel Exp $
   3  *
   4  * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include <linux/init.h>
  22 #include <linux/list.h>
  23 #include <linux/module.h>
  24 #include <linux/kernel.h>
  25 #include <linux/slab.h>
  26 #include <linux/delay.h>
  27 #include <linux/kthread.h>
  28 #include <linux/suspend.h>
  29
  30 #include "saa7134-reg.h"
  31 #include "saa7134.h"
  32
  33 #include "dvb-pll.h"
  34 #include "mt352.h"
  35 #include "mt352_priv.h" /* FIXME */
  36 #include "tda1004x.h"
  37
  38 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  39 MODULE_LICENSE("GPL");
  40
  41 static unsigned int antenna_pwr = 0;
  42 module_param(antenna_pwr, int, 0444);
  43 MODULE_PARM_DESC(antenna_pwr,"enable antenna power (Pinnacle 300i)");
  44
  45 /* ------------------------------------------------------------------ */
  46
  47 static int pinnacle_antenna_pwr(struct saa7134_dev *dev, int on)
  48 {
  49         u32 ok;
  50
  51         if (!on) {
  52                 saa_setl(SAA7134_GPIO_GPMODE0 >> 2,     (1 << 26));
  53                 saa_clearl(SAA7134_GPIO_GPSTATUS0 >> 2, (1 << 26));
  54                 return 0;
  55         }
  56
  57         saa_setl(SAA7134_GPIO_GPMODE0 >> 2,     (1 << 26));
  58         saa_setl(SAA7134_GPIO_GPSTATUS0 >> 2,   (1 << 26));
  59         udelay(10);
  60
  61         saa_setl(SAA7134_GPIO_GPMODE0 >> 2,     (1 << 28));
  62         saa_clearl(SAA7134_GPIO_GPSTATUS0 >> 2, (1 << 28));
  63         udelay(10);
  64         saa_setl(SAA7134_GPIO_GPSTATUS0 >> 2,   (1 << 28));
  65         udelay(10);
  66         ok = saa_readl(SAA7134_GPIO_GPSTATUS0) & (1 << 27);
  67         printk("%s: %s %s\n", dev->name, __FUNCTION__,
  68                ok ? "on" : "off");
  69
  70         if (!ok)
  71                 saa_clearl(SAA7134_GPIO_GPSTATUS0 >> 2,   (1 << 26));
  72         return ok;
  73 }
  74
  75 static int mt352_pinnacle_init(struct dvb_frontend* fe)
  76 {
  77         static u8 clock_config []  = { CLOCK_CTL,  0x3d, 0x28 };
  78         static u8 reset []         = { RESET,      0x80 };
  79         static u8 adc_ctl_1_cfg [] = { ADC_CTL_1,  0x40 };
  80         static u8 agc_cfg []       = { AGC_TARGET, 0x28, 0xa0 };
  81         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x31 };
  82         static u8 fsm_ctl_cfg[]    = { 0x7b,       0x04 };
  83         static u8 gpp_ctl_cfg []   = { GPP_CTL,    0x0f };
  84         static u8 scan_ctl_cfg []  = { SCAN_CTL,   0x0d };
  85         static u8 irq_cfg []       = { INTERRUPT_EN_0, 0x00, 0x00, 0x00, 0x00 };
  86         struct saa7134_dev *dev= fe->dvb->priv;
  87
  88         printk("%s: %s called\n",dev->name,__FUNCTION__);
  89
  90         mt352_write(fe, clock_config,   sizeof(clock_config));
  91         udelay(200);
  92         mt352_write(fe, reset,          sizeof(reset));
  93         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
  94         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
  95         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
  96         mt352_write(fe, gpp_ctl_cfg,    sizeof(gpp_ctl_cfg));
  97
  98         mt352_write(fe, fsm_ctl_cfg,    sizeof(fsm_ctl_cfg));
  99         mt352_write(fe, scan_ctl_cfg,   sizeof(scan_ctl_cfg));
 100         mt352_write(fe, irq_cfg,        sizeof(irq_cfg));
 101         return 0;
 102 }
 103
 104 static int mt352_pinnacle_pll_set(struct dvb_frontend* fe,
 105                                   struct dvb_frontend_parameters* params,
 106                                   u8* pllbuf)
 107 {
 108         static int on  = TDA9887_PRESENT | TDA9887_PORT2_INACTIVE;
 109         static int off = TDA9887_PRESENT | TDA9887_PORT2_ACTIVE;
 110         struct saa7134_dev *dev = fe->dvb->priv;
 111         struct v4l2_frequency f;
 112
 113         /* set frequency (mt2050) */
 114         f.tuner     = 0;
 115         f.type      = V4L2_TUNER_DIGITAL_TV;
 116         f.frequency = params->frequency / 1000 * 16 / 1000;
 117         saa7134_i2c_call_clients(dev,TDA9887_SET_CONFIG,&on);
 118         saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,&f);
 119         saa7134_i2c_call_clients(dev,TDA9887_SET_CONFIG,&off);
 120
 121         pinnacle_antenna_pwr(dev, antenna_pwr);
 122
 123         /* mt352 setup */
 124         mt352_pinnacle_init(fe);
 125         pllbuf[0] = 0xc2;
 126         pllbuf[1] = 0x00;
 127         pllbuf[2] = 0x00;
 128         pllbuf[3] = 0x80;
 129         pllbuf[4] = 0x00;
 130         return 0;
 131 }
 132
 133 static struct mt352_config pinnacle_300i = {
 134         .demod_address = 0x3c >> 1,
 135         .adc_clock     = 20333,
 136         .if2           = 36150,
 137         .no_tuner      = 1,
 138         .demod_init    = mt352_pinnacle_init,
 139         .pll_set       = mt352_pinnacle_pll_set,
 140 };
 141
 142 /* ------------------------------------------------------------------ */
 143
 144 static int medion_cardbus_init(struct dvb_frontend* fe)
 145 {
 146         /* anything to do here ??? */
 147         return 0;
 148 }
 149
 150 static int medion_cardbus_pll_set(struct dvb_frontend* fe,
 151                                   struct dvb_frontend_parameters* params)
 152 {
 153         struct saa7134_dev *dev = fe->dvb->priv;
 154         struct v4l2_frequency f;
 155
 156         /*
 157          * this instructs tuner.o to set the frequency, the call will
 158          * end up in tuner_command(), VIDIOC_S_FREQUENCY switch.
 159          * tda9887.o will see that as well.
 160          */
 161         f.tuner     = 0;
 162         f.type      = V4L2_TUNER_DIGITAL_TV;
 163         f.frequency = params->frequency / 1000 * 16 / 1000;
 164         saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,&f);
 165         return 0;
 166 }
 167
 168 static int fe_request_firmware(struct dvb_frontend* fe,
 169                                const struct firmware **fw, char* name)
 170 {
 171         struct saa7134_dev *dev = fe->dvb->priv;
 172         return request_firmware(fw, name, &dev->pci->dev);
 173 }
 174
 175 static struct tda1004x_config medion_cardbus = {
 176         .demod_address = 0x08,  /* not sure this is correct */
 177         .invert        = 0,
 178         .invert_oclk   = 0,
 179         .pll_init      = medion_cardbus_init,
 180         .pll_set       = medion_cardbus_pll_set,
 181         .request_firmware = fe_request_firmware,
 182 };
 183
 184 /* ------------------------------------------------------------------ */
 185
 186 static int dvb_init(struct saa7134_dev *dev)
 187 {
 188         /* init struct videobuf_dvb */
 189         dev->ts.nr_bufs    = 32;
 190         dev->ts.nr_packets = 32*4;
 191         dev->dvb.name = dev->name;
 192         videobuf_queue_init(&dev->dvb.dvbq, &saa7134_ts_qops,
 193                             dev->pci, &dev->slock,
 194                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 195                             V4L2_FIELD_ALTERNATE,
 196                             sizeof(struct saa7134_buf),
 197                             dev);
 198
 199         switch (dev->board) {
 200         case SAA7134_BOARD_PINNACLE_300I_DVBT_PAL:
 201                 printk("%s: pinnacle 300i dvb setup\n",dev->name);
 202                 dev->dvb.frontend = mt352_attach(&pinnacle_300i,
 203                                                  &dev->i2c_adap);
 204                 break;
 205         case SAA7134_BOARD_MD7134:
 206                 dev->dvb.frontend = tda10046_attach(&medion_cardbus,
 207                                                     &dev->i2c_adap);
 208                 if (NULL == dev->dvb.frontend)
 209                         printk("%s: Hmm, looks like this is the old MD7134 "
 210                                "version without DVB-T support\n",dev->name);
 211                 break;
 212         default:
 213                 printk("%s: Huh? unknown DVB card?\n",dev->name);
 214                 break;
 215         }
 216
 217         if (NULL == dev->dvb.frontend) {
 218                 printk("%s: frontend initialization failed\n",dev->name);
 219                 return -1;
 220         }
 221
 222         /* register everything else */
 223         return videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev);
 224 }
 225
 226 static int dvb_fini(struct saa7134_dev *dev)
 227 {
 228         static int on  = TDA9887_PRESENT | TDA9887_PORT2_INACTIVE;
 229
 230         printk("%s: %s\n",dev->name,__FUNCTION__);
 231
 232         switch (dev->board) {
 233         case SAA7134_BOARD_PINNACLE_300I_DVBT_PAL:
 234                 /* otherwise we don't detect the tuner on next insmod */
 235                 saa7134_i2c_call_clients(dev,TDA9887_SET_CONFIG,&on);
 236                 break;
 237         };
 238         videobuf_dvb_unregister(&dev->dvb);
 239         return 0;
 240 }
 241
 242 static struct saa7134_mpeg_ops dvb_ops = {
 243         .type          = SAA7134_MPEG_DVB,
 244         .init          = dvb_init,
 245         .fini          = dvb_fini,
 246 };
 247
 248 static int __init dvb_register(void)
 249 {
 250         return saa7134_ts_register(&dvb_ops);
 251 }
 252
 253 static void __exit dvb_unregister(void)
 254 {
 255         saa7134_ts_unregister(&dvb_ops);
 256 }
 257
 258 module_init(dvb_register);
 259 module_exit(dvb_unregister);
 260
 261 /* ------------------------------------------------------------------ */
 262 /*
 263  * Local variables:
 264  * c-basic-offset: 8
 265  * End:
 266  */