drivers/media/video/cx88/cx88-dvb.c

   1 /*
   2  * $Id: cx88-dvb.c,v 1.19 2004/11/07 14:44:59 kraxel Exp $
   3  *
   4  * device driver for Conexant 2388x based TV cards
   5  * MPEG Transport Stream (DVB) routines
   6  *
   7  * (c) 2004 Chris Pascoe <c.pascoe@itee.uq.edu.au>
   8  * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  */
  24
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/device.h>
  28 #include <linux/fs.h>
  29 #include <linux/kthread.h>
  30 #include <linux/file.h>
  31 #include <linux/suspend.h>
  32
  33 #include "cx88.h"
  34 #include "cx22702.h"
  35 #include "mt352.h"
  36 #include "mt352_priv.h" /* FIXME */
  37
  38 MODULE_DESCRIPTION("driver for cx2388x based DVB cards");
  39 MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
  40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  41 MODULE_LICENSE("GPL");
  42
  43 static unsigned int debug = 0;
  44 module_param(debug, int, 0644);
  45 MODULE_PARM_DESC(debug,"enable debug messages [dvb]");
  46
  47 #define dprintk(level,fmt, arg...)      if (debug >= level) \
  48         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->core->name , ## arg)
  49
  50 /* ------------------------------------------------------------------ */
  51
  52 static int dvb_buf_setup(struct videobuf_queue *q,
  53                          unsigned int *count, unsigned int *size)
  54 {
  55         struct cx8802_dev *dev = q->priv_data;
  56
  57         dev->ts_packet_size  = 188 * 4;
  58         dev->ts_packet_count = 32;
  59
  60         *size  = dev->ts_packet_size * dev->ts_packet_count;
  61         *count = 32;
  62         return 0;
  63 }
  64
  65 static int dvb_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
  66                            enum v4l2_field field)
  67 {
  68         struct cx8802_dev *dev = q->priv_data;
  69         return cx8802_buf_prepare(dev, (struct cx88_buffer*)vb);
  70 }
  71
  72 static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
  73 {
  74         struct cx8802_dev *dev = q->priv_data;
  75         cx8802_buf_queue(dev, (struct cx88_buffer*)vb);
  76 }
  77
  78 static void dvb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
  79 {
  80         struct cx8802_dev *dev = q->priv_data;
  81         cx88_free_buffer(dev->pci, (struct cx88_buffer*)vb);
  82 }
  83
  84 struct videobuf_queue_ops dvb_qops = {
  85         .buf_setup    = dvb_buf_setup,
  86         .buf_prepare  = dvb_buf_prepare,
  87         .buf_queue    = dvb_buf_queue,
  88         .buf_release  = dvb_buf_release,
  89 };
  90
  91 /* ------------------------------------------------------------------ */
  92
  93 static int dvico_fusionhdtv_demod_init(struct dvb_frontend* fe)
  94 {
  95         static u8 clock_config []  = { CLOCK_CTL,  0x38, 0x39 };
  96         static u8 reset []         = { RESET,      0x80 };
  97         static u8 adc_ctl_1_cfg [] = { ADC_CTL_1,  0x40 };
  98         static u8 agc_cfg []       = { AGC_TARGET, 0x24, 0x20 };
  99         static u8 gpp_ctl_cfg []   = { GPP_CTL,    0x33 };
 100         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 101
 102         mt352_write(fe, clock_config,   sizeof(clock_config));
 103         udelay(200);
 104         mt352_write(fe, reset,          sizeof(reset));
 105         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 106
 107         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 108         mt352_write(fe, gpp_ctl_cfg,    sizeof(gpp_ctl_cfg));
 109         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 110         return 0;
 111 }
 112
 113 #define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
 114
 115 static int lg_z201_pll_set(struct dvb_frontend* fe,
 116                            struct dvb_frontend_parameters* params, u8* pllbuf)
 117 {
 118         u32 div;
 119         unsigned char cp = 0;
 120         unsigned char bs = 0;
 121
 122         div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
 123
 124         if (params->frequency < 542000000) cp = 0xbc;
 125         else if (params->frequency < 830000000) cp = 0xf4;
 126         else cp = 0xfc;
 127
 128         if (params->frequency == 0) bs = 0x03;
 129         else if (params->frequency < 157500000) bs = 0x01;
 130         else if (params->frequency < 443250000) bs = 0x02;
 131         else bs = 0x04;
 132
 133         pllbuf[0] = 0xC2; /* Note: non-linux standard PLL I2C address */
 134         pllbuf[1] = div >> 8;
 135         pllbuf[2] = div & 0xff;
 136         pllbuf[3] = cp;
 137         pllbuf[4] = bs;
 138
 139         return 0;
 140 }
 141
 142 static int thomson_dtt7579_pll_set(struct dvb_frontend* fe,
 143                                    struct dvb_frontend_parameters* params,
 144                                    u8* pllbuf)
 145 {
 146         u32 div;
 147         unsigned char cp = 0;
 148         unsigned char bs = 0;
 149
 150         div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
 151
 152         if (params->frequency < 542000000) cp = 0xb4;
 153         else if (params->frequency < 771000000) cp = 0xbc;
 154         else cp = 0xf4;
 155
 156         if (params->frequency == 0) bs = 0x03;
 157         else if (params->frequency < 443250000) bs = 0x02;
 158         else bs = 0x08;
 159
 160         pllbuf[0] = 0xc0; // Note: non-linux standard PLL i2c address
 161         pllbuf[1] = div >> 8;
 162         pllbuf[2] = div & 0xff;
 163         pllbuf[3] = cp;
 164         pllbuf[4] = bs;
 165
 166         return 0;
 167 }
 168
 169 struct mt352_config dvico_fusionhdtv_dvbt1 = {
 170         .demod_address = 0x0F,
 171         .demod_init    = dvico_fusionhdtv_demod_init,
 172         .pll_set       = lg_z201_pll_set,
 173 };
 174
 175 struct mt352_config dvico_fusionhdtv_dvbt_plus = {
 176         .demod_address = 0x0F,
 177         .demod_init    = dvico_fusionhdtv_demod_init,
 178         .pll_set       = thomson_dtt7579_pll_set,
 179 };
 180
 181 static int dvb_register(struct cx8802_dev *dev)
 182 {
 183         /* init struct videobuf_dvb */
 184         dev->dvb.name = dev->core->name;
 185
 186         /* init frontend */
 187         switch (dev->core->board) {
 188         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 189         case CX88_BOARD_CONEXANT_DVB_T1:
 190                 dev->dvb.frontend = cx22702_create(&dev->core->i2c_adap,
 191                                                    dev->core->pll_addr,
 192                                                    dev->core->pll_type,
 193                                                    dev->core->demod_addr);
 194                 break;
 195         case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1:
 196                 dev->dvb.frontend = mt352_attach(&dvico_fusionhdtv_dvbt1,
 197                                                  &dev->core->i2c_adap);
 198                 if (dev->dvb.frontend) {
 199                         dev->dvb.frontend->ops->info.frequency_min = 174000000;
 200                         dev->dvb.frontend->ops->info.frequency_max = 862000000;
 201                 }
 202                 break;
 203         case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS:
 204                 dev->dvb.frontend = mt352_attach(&dvico_fusionhdtv_dvbt_plus,
 205                                                  &dev->core->i2c_adap);
 206                 if (dev->dvb.frontend) {
 207                         dev->dvb.frontend->ops->info.frequency_min = 174000000;
 208                         dev->dvb.frontend->ops->info.frequency_max = 862000000;
 209                 }
 210                 break;
 211         default:
 212                 printk("%s: FIXME: frontend handling not here yet ...\n",
 213                        dev->core->name);
 214                 break;
 215         }
 216         if (NULL == dev->dvb.frontend)
 217                 return -1;
 218
 219         /* Copy the board name into the DVB structure */
 220         strlcpy(dev->dvb.frontend->ops->info.name,
 221                 cx88_boards[dev->core->board].name,
 222                 sizeof(dev->dvb.frontend->ops->info.name));
 223
 224         /* register everything */
 225         return videobuf_dvb_register(&dev->dvb);
 226 }
 227
 228 /* ----------------------------------------------------------- */
 229
 230 static int __devinit dvb_probe(struct pci_dev *pci_dev,
 231                                const struct pci_device_id *pci_id)
 232 {
 233         struct cx8802_dev *dev;
 234         struct cx88_core  *core;
 235         int err;
 236
 237         /* general setup */
 238         core = cx88_core_get(pci_dev);
 239         if (NULL == core)
 240                 return -EINVAL;
 241
 242         err = -ENODEV;
 243         if (!cx88_boards[core->board].dvb)
 244                 goto fail_core;
 245
 246         err = -ENOMEM;
 247         dev = kmalloc(sizeof(*dev),GFP_KERNEL);
 248         if (NULL == dev)
 249                 goto fail_core;
 250         memset(dev,0,sizeof(*dev));
 251         dev->pci = pci_dev;
 252         dev->core = core;
 253
 254         err = cx8802_init_common(dev);
 255         if (0 != err)
 256                 goto fail_free;
 257
 258         /* dvb stuff */
 259         printk("%s/2: cx2388x based dvb card\n", core->name);
 260         videobuf_queue_init(&dev->dvb.dvbq, &dvb_qops,
 261                             dev->pci, &dev->slock,
 262                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 263                             V4L2_FIELD_TOP,
 264                             sizeof(struct cx88_buffer),
 265                             dev);
 266         err = dvb_register(dev);
 267         if (0 != err)
 268                 goto fail_free;
 269         return 0;
 270
 271  fail_free:
 272         kfree(dev);
 273  fail_core:
 274         cx88_core_put(core,pci_dev);
 275         return err;
 276 }
 277
 278 static void __devexit dvb_remove(struct pci_dev *pci_dev)
 279 {
 280         struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
 281
 282         /* dvb */
 283         videobuf_dvb_unregister(&dev->dvb);
 284
 285         /* common */
 286         cx8802_fini_common(dev);
 287         cx88_core_put(dev->core,dev->pci);
 288         kfree(dev);
 289 }
 290
 291 static struct pci_device_id cx8802_pci_tbl[] = {
 292         {
 293                 .vendor       = 0x14f1,
 294                 .device       = 0x8802,
 295                 .subvendor    = PCI_ANY_ID,
 296                 .subdevice    = PCI_ANY_ID,
 297         },{
 298                 /* --- end of list --- */
 299         }
 300 };
 301 MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
 302
 303 static struct pci_driver dvb_pci_driver = {
 304         .name     = "cx88-dvb",
 305         .id_table = cx8802_pci_tbl,
 306         .probe    = dvb_probe,
 307         .remove   = __devexit_p(dvb_remove),
 308         .suspend  = cx8802_suspend_common,
 309         .resume   = cx8802_resume_common,
 310 };
 311
 312 static int dvb_init(void)
 313 {
 314         printk(KERN_INFO "cx2388x dvb driver version %d.%d.%d loaded\n",
 315                (CX88_VERSION_CODE >> 16) & 0xff,
 316                (CX88_VERSION_CODE >>  8) & 0xff,
 317                CX88_VERSION_CODE & 0xff);
 318 #ifdef SNAPSHOT
 319         printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
 320                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
 321 #endif
 322         return pci_module_init(&dvb_pci_driver);
 323 }
 324
 325 static void dvb_fini(void)
 326 {
 327         pci_unregister_driver(&dvb_pci_driver);
 328 }
 329
 330 module_init(dvb_init);
 331 module_exit(dvb_fini);
 332
 333 /*
 334  * Local variables:
 335  * c-basic-offset: 8
 336  * compile-command: "make DVB=1"
 337  * End:
 338  */