drivers/media/pci/mantis/mantis_cards.c

   1 /*
   2         Mantis PCI bridge driver
   3
   4         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   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/module.h>
  22 #include <linux/moduleparam.h>
  23 #include <linux/kernel.h>
  24 #include <linux/pci.h>
  25 #include <linux/slab.h>
  26 #include <asm/irq.h>
  27 #include <linux/interrupt.h>
  28
  29 #include "dmxdev.h"
  30 #include "dvbdev.h"
  31 #include "dvb_demux.h"
  32 #include "dvb_frontend.h"
  33 #include "dvb_net.h"
  34
  35 #include "mantis_common.h"
  36
  37 #include "mantis_vp1033.h"
  38 #include "mantis_vp1034.h"
  39 #include "mantis_vp1041.h"
  40 #include "mantis_vp2033.h"
  41 #include "mantis_vp2040.h"
  42 #include "mantis_vp3030.h"
  43
  44 #include "mantis_dma.h"
  45 #include "mantis_ca.h"
  46 #include "mantis_dvb.h"
  47 #include "mantis_uart.h"
  48 #include "mantis_ioc.h"
  49 #include "mantis_pci.h"
  50 #include "mantis_i2c.h"
  51 #include "mantis_reg.h"
  52
  53 static unsigned int verbose;
  54 module_param(verbose, int, 0644);
  55 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
  56
  57 static int devs;
  58
  59 #define DRIVER_NAME     "Mantis"
  60
  61 static char *label[10] = {
  62         "DMA",
  63         "IRQ-0",
  64         "IRQ-1",
  65         "OCERR",
  66         "PABRT",
  67         "RIPRR",
  68         "PPERR",
  69         "FTRGT",
  70         "RISCI",
  71         "RACK"
  72 };
  73
  74 static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
  75 {
  76         u32 stat = 0, mask = 0;
  77         u32 rst_stat = 0, rst_mask = 0;
  78
  79         struct mantis_pci *mantis;
  80         struct mantis_ca *ca;
  81
  82         mantis = (struct mantis_pci *) dev_id;
  83         if (unlikely(mantis == NULL)) {
  84                 dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
  85                 return IRQ_NONE;
  86         }
  87         ca = mantis->mantis_ca;
  88
  89         stat = mmread(MANTIS_INT_STAT);
  90         mask = mmread(MANTIS_INT_MASK);
  91         if (!(stat & mask))
  92                 return IRQ_NONE;
  93
  94         rst_mask  = MANTIS_GPIF_WRACK  |
  95                     MANTIS_GPIF_OTHERR |
  96                     MANTIS_SBUF_WSTO   |
  97                     MANTIS_GPIF_EXTIRQ;
  98
  99         rst_stat  = mmread(MANTIS_GPIF_STATUS);
 100         rst_stat &= rst_mask;
 101         mmwrite(rst_stat, MANTIS_GPIF_STATUS);
 102
 103         mantis->mantis_int_stat = stat;
 104         mantis->mantis_int_mask = mask;
 105         dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
 106         if (stat & MANTIS_INT_RISCEN) {
 107                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
 108         }
 109         if (stat & MANTIS_INT_IRQ0) {
 110                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
 111                 mantis->gpif_status = rst_stat;
 112                 wake_up(&ca->hif_write_wq);
 113                 schedule_work(&ca->hif_evm_work);
 114         }
 115         if (stat & MANTIS_INT_IRQ1) {
 116                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
 117                 schedule_work(&mantis->uart_work);
 118         }
 119         if (stat & MANTIS_INT_OCERR) {
 120                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
 121         }
 122         if (stat & MANTIS_INT_PABORT) {
 123                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
 124         }
 125         if (stat & MANTIS_INT_RIPERR) {
 126                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
 127         }
 128         if (stat & MANTIS_INT_PPERR) {
 129                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
 130         }
 131         if (stat & MANTIS_INT_FTRGT) {
 132                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
 133         }
 134         if (stat & MANTIS_INT_RISCI) {
 135                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
 136                 mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
 137                 tasklet_schedule(&mantis->tasklet);
 138         }
 139         if (stat & MANTIS_INT_I2CDONE) {
 140                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
 141                 wake_up(&mantis->i2c_wq);
 142         }
 143         mmwrite(stat, MANTIS_INT_STAT);
 144         stat &= ~(MANTIS_INT_RISCEN   | MANTIS_INT_I2CDONE |
 145                   MANTIS_INT_I2CRACK  | MANTIS_INT_PCMCIA7 |
 146                   MANTIS_INT_PCMCIA6  | MANTIS_INT_PCMCIA5 |
 147                   MANTIS_INT_PCMCIA4  | MANTIS_INT_PCMCIA3 |
 148                   MANTIS_INT_PCMCIA2  | MANTIS_INT_PCMCIA1 |
 149                   MANTIS_INT_PCMCIA0  | MANTIS_INT_IRQ1    |
 150                   MANTIS_INT_IRQ0     | MANTIS_INT_OCERR   |
 151                   MANTIS_INT_PABORT   | MANTIS_INT_RIPERR  |
 152                   MANTIS_INT_PPERR    | MANTIS_INT_FTRGT   |
 153                   MANTIS_INT_RISCI);
 154
 155         if (stat)
 156                 dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
 157
 158         dprintk(MANTIS_DEBUG, 0, "\n");
 159         return IRQ_HANDLED;
 160 }
 161
 162 static int mantis_pci_probe(struct pci_dev *pdev,
 163                             const struct pci_device_id *pci_id)
 164 {
 165         struct mantis_pci *mantis;
 166         struct mantis_hwconfig *config;
 167         int err = 0;
 168
 169         mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
 170         if (mantis == NULL) {
 171                 printk(KERN_ERR "%s ERROR: Out of memory\n", __func__);
 172                 err = -ENOMEM;
 173                 goto fail0;
 174         }
 175
 176         mantis->num             = devs;
 177         mantis->verbose         = verbose;
 178         mantis->pdev            = pdev;
 179         config                  = (struct mantis_hwconfig *) pci_id->driver_data;
 180         config->irq_handler     = &mantis_irq_handler;
 181         mantis->hwconfig        = config;
 182
 183         err = mantis_pci_init(mantis);
 184         if (err) {
 185                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
 186                 goto fail1;
 187         }
 188
 189         err = mantis_stream_control(mantis, STREAM_TO_HIF);
 190         if (err < 0) {
 191                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
 192                 goto fail1;
 193         }
 194
 195         err = mantis_i2c_init(mantis);
 196         if (err < 0) {
 197                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
 198                 goto fail2;
 199         }
 200
 201         err = mantis_get_mac(mantis);
 202         if (err < 0) {
 203                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
 204                 goto fail2;
 205         }
 206
 207         err = mantis_dma_init(mantis);
 208         if (err < 0) {
 209                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
 210                 goto fail3;
 211         }
 212
 213         err = mantis_dvb_init(mantis);
 214         if (err < 0) {
 215                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
 216                 goto fail4;
 217         }
 218         err = mantis_uart_init(mantis);
 219         if (err < 0) {
 220                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
 221                 goto fail6;
 222         }
 223
 224         devs++;
 225
 226         return err;
 227
 228
 229         dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART exit! <%d>", err);
 230         mantis_uart_exit(mantis);
 231
 232 fail6:
 233 fail4:
 234         dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA exit! <%d>", err);
 235         mantis_dma_exit(mantis);
 236
 237 fail3:
 238         dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C exit! <%d>", err);
 239         mantis_i2c_exit(mantis);
 240
 241 fail2:
 242         dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI exit! <%d>", err);
 243         mantis_pci_exit(mantis);
 244
 245 fail1:
 246         dprintk(MANTIS_ERROR, 1, "ERROR: Mantis free! <%d>", err);
 247         kfree(mantis);
 248
 249 fail0:
 250         return err;
 251 }
 252
 253 static void mantis_pci_remove(struct pci_dev *pdev)
 254 {
 255         struct mantis_pci *mantis = pci_get_drvdata(pdev);
 256
 257         if (mantis) {
 258
 259                 mantis_uart_exit(mantis);
 260                 mantis_dvb_exit(mantis);
 261                 mantis_dma_exit(mantis);
 262                 mantis_i2c_exit(mantis);
 263                 mantis_pci_exit(mantis);
 264                 kfree(mantis);
 265         }
 266         return;
 267 }
 268
 269 static struct pci_device_id mantis_pci_table[] = {
 270         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config),
 271         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config),
 272         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config),
 273         MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config),
 274         MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config),
 275         MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config),
 276         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config),
 277         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config),
 278         MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config),
 279         MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config),
 280         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config),
 281         { }
 282 };
 283
 284 MODULE_DEVICE_TABLE(pci, mantis_pci_table);
 285
 286 static struct pci_driver mantis_pci_driver = {
 287         .name           = DRIVER_NAME,
 288         .id_table       = mantis_pci_table,
 289         .probe          = mantis_pci_probe,
 290         .remove         = mantis_pci_remove,
 291 };
 292
 293 module_pci_driver(mantis_pci_driver);
 294
 295 MODULE_DESCRIPTION("MANTIS driver");
 296 MODULE_AUTHOR("Manu Abraham");
 297 MODULE_LICENSE("GPL");