drivers/media/dvb/mantis/mantis_core.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 "mantis_common.h"
  22 #include "mantis_core.h"
  23 #include "mantis_vp1033.h"
  24 #include "mantis_vp1034.h"
  25 #include "mantis_vp1041.h"
  26 #include "mantis_vp2033.h"
  27 #include "mantis_vp2040.h"
  28 #include "mantis_vp3030.h"
  29
  30 static int read_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
  31 {
  32         int err;
  33         struct i2c_msg msg[] = {
  34                 {
  35                         .addr = 0x50,
  36                         .flags = 0,
  37                         .buf = data,
  38                         .len = 1
  39                 }, {
  40                         .addr = 0x50,
  41                         .flags = I2C_M_RD,
  42                         .buf = data,
  43                         .len = length
  44                 },
  45         };
  46
  47         err = i2c_transfer(&mantis->adapter, msg, 2);
  48         if (err < 0) {
  49                 dprintk(verbose, MANTIS_ERROR, 1,
  50                         "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
  51                         err, data[0], data[1]);
  52
  53                 return err;
  54         }
  55
  56         return 0;
  57 }
  58
  59 static int write_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
  60 {
  61         int err;
  62
  63         struct i2c_msg msg = {
  64                 .addr = 0x50,
  65                 .flags = 0,
  66                 .buf = data,
  67                 .len = length
  68         };
  69
  70         err = i2c_transfer(&mantis->adapter, &msg, 1);
  71         if (err < 0) {
  72                 dprintk(verbose, MANTIS_ERROR, 1,
  73                         "ERROR: i2c write: < err=%i length=0x%02x d0=0x%02x, d1=0x%02x >",
  74                         err, length, data[0], data[1]);
  75
  76                 return err;
  77         }
  78
  79         return 0;
  80 }
  81
  82 static int get_mac_address(struct mantis_pci *mantis)
  83 {
  84         int err;
  85
  86         mantis->mac_address[0] = 0x08;
  87         err = read_eeprom_byte(mantis, &mantis->mac_address[0], 6);
  88         if (err < 0) {
  89                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis EEPROM read error");
  90
  91                 return err;
  92         }
  93         dprintk(verbose, MANTIS_ERROR, 0,
  94                 "    MAC Address=[%02x:%02x:%02x:%02x:%02x:%02x]\n",
  95                 mantis->mac_address[0], mantis->mac_address[1],
  96                 mantis->mac_address[2], mantis->mac_address[3],
  97                 mantis->mac_address[4], mantis->mac_address[5]);
  98
  99         return 0;
 100 }
 101
 102 #define MANTIS_MODEL_UNKNOWN    "UNKNOWN"
 103 #define MANTIS_DEV_UNKNOWN      "UNKNOWN"
 104
 105 struct mantis_hwconfig unknown_device = {
 106         .model_name     = MANTIS_MODEL_UNKNOWN,
 107         .dev_type       = MANTIS_DEV_UNKNOWN,
 108 };
 109
 110 static void mantis_load_config(struct mantis_pci *mantis)
 111 {
 112         switch (mantis->subsystem_device) {
 113         case MANTIS_VP_1033_DVB_S:      /* VP-1033 */
 114                 mantis->hwconfig = &vp1033_mantis_config;
 115                 break;
 116         case MANTIS_VP_1034_DVB_S:      /* VP-1034 */
 117                 mantis->hwconfig = &vp1034_mantis_config;
 118                 break;
 119         case MANTIS_VP_1041_DVB_S2:     /* VP-1041 */
 120         case TECHNISAT_SKYSTAR_HD2:
 121                 mantis->hwconfig = &vp1041_mantis_config;
 122                 break;
 123         case MANTIS_VP_2033_DVB_C:      /* VP-2033 */
 124                 mantis->hwconfig = &vp2033_mantis_config;
 125                 break;
 126         case MANTIS_VP_2040_DVB_C:      /* VP-2040 */
 127         case TERRATEC_CINERGY_C_PCI:    /* VP-2040 clone */
 128         case TECHNISAT_CABLESTAR_HD2:
 129                 mantis->hwconfig = &vp2040_mantis_config;
 130                 break;
 131         case MANTIS_VP_3030_DVB_T:      /* VP-3030 */
 132                 mantis->hwconfig = &vp3030_mantis_config;
 133                 break;
 134         default:
 135                 mantis->hwconfig = &unknown_device;
 136                 break;
 137         }
 138 }
 139
 140 int mantis_core_init(struct mantis_pci *mantis)
 141 {
 142         int err = 0;
 143
 144         mantis_load_config(mantis);
 145         dprintk(verbose, MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
 146                 mantis->hwconfig->model_name, mantis->hwconfig->dev_type,
 147                 mantis->pdev->bus->number, PCI_SLOT(mantis->pdev->devfn), PCI_FUNC(mantis->pdev->devfn));
 148         dprintk(verbose, MANTIS_ERROR, 0, "    Mantis Rev %d [%04x:%04x], ",
 149                 mantis->revision,
 150                 mantis->subsystem_vendor, mantis->subsystem_device);
 151         dprintk(verbose, MANTIS_ERROR, 0,
 152                 "irq: %d, latency: %d\n    memory: 0x%lx, mmio: 0x%p\n",
 153                 mantis->pdev->irq, mantis->latency,
 154                 mantis->mantis_addr, mantis->mantis_mmio);
 155
 156         err = mantis_i2c_init(mantis);
 157         if (err < 0) {
 158                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis I2C init failed");
 159                 return err;
 160         }
 161         err = get_mac_address(mantis);
 162         if (err < 0) {
 163                 dprintk(verbose, MANTIS_ERROR, 1, "get MAC address failed");
 164                 return err;
 165         }
 166         err = mantis_dma_init(mantis);
 167         if (err < 0) {
 168                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis DMA init failed");
 169                 return err;
 170         }
 171         err = mantis_dvb_init(mantis);
 172         if (err < 0) {
 173                 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis DVB init failed");
 174                 return err;
 175         }
 176         err = mantis_uart_init(mantis);
 177         if (err < 0) {
 178                 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis UART init failed");
 179                 return err;
 180         }
 181
 182         return 0;
 183 }
 184
 185 int mantis_core_exit(struct mantis_pci *mantis)
 186 {
 187         mantis_dma_stop(mantis);
 188         dprintk(verbose, MANTIS_ERROR, 1, "DMA engine stopping");
 189
 190         mantis_uart_exit(mantis);
 191         dprintk(verbose, MANTIS_ERROR, 1, "UART exit failed");
 192
 193         if (mantis_dma_exit(mantis) < 0)
 194                 dprintk(verbose, MANTIS_ERROR, 1, "DMA exit failed");
 195         if (mantis_dvb_exit(mantis) < 0)
 196                 dprintk(verbose, MANTIS_ERROR, 1, "DVB exit failed");
 197         if (mantis_i2c_exit(mantis) < 0)
 198                 dprintk(verbose, MANTIS_ERROR, 1, "I2C adapter delete.. failed");
 199
 200         return 0;
 201 }
 202
 203 /* Turn the given bit on or off. */
 204 void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
 205 {
 206         u32 cur;
 207
 208         cur = mmread(MANTIS_GPIF_ADDR);
 209         if (value)
 210                 mantis->gpio_status = cur | (1 << bitpos);
 211         else
 212                 mantis->gpio_status = cur & (~(1 << bitpos));
 213
 214         mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
 215         mmwrite(0x00, MANTIS_GPIF_DOUT);
 216         udelay(100);
 217 }
 218
 219 /* direction = 0 , no CI passthrough ; 1 , CI passthrough */
 220 void mantis_set_direction(struct mantis_pci *mantis, int direction)
 221 {
 222         u32 reg;
 223
 224         reg = mmread(0x28);
 225         dprintk(verbose, MANTIS_DEBUG, 1, "TS direction setup");
 226         if (direction == 0x01) {
 227                 /* to CI */
 228                 reg |= 0x04;
 229                 mmwrite(reg, 0x28);
 230                 reg &= 0xff - 0x04;
 231                 mmwrite(reg, 0x28);
 232         } else {
 233                 reg &= 0xff - 0x04;
 234                 mmwrite(reg, 0x28);
 235                 reg |= 0x04;
 236                 mmwrite(reg, 0x28);
 237         }
 238 }