root/drivers/media/pci/mantis/mantis_core.c

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DEFINITIONS

This source file includes following definitions.
  1. read_eeprom_byte
  2. get_mac_address
  3. mantis_load_config
  4. mantis_core_init
  5. mantis_core_exit
  6. gpio_set_bits
  7. mantis_set_direction

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3         Mantis PCI bridge driver
   4 
   5         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   6 
   7 */
   8 
   9 #include "mantis_common.h"
  10 #include "mantis_core.h"
  11 #include "mantis_vp1033.h"
  12 #include "mantis_vp1034.h"
  13 #include "mantis_vp1041.h"
  14 #include "mantis_vp2033.h"
  15 #include "mantis_vp2040.h"
  16 #include "mantis_vp3030.h"
  17 
  18 static int read_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
  19 {
  20         int err;
  21         struct i2c_msg msg[] = {
  22                 {
  23                         .addr = 0x50,
  24                         .flags = 0,
  25                         .buf = data,
  26                         .len = 1
  27                 }, {
  28                         .addr = 0x50,
  29                         .flags = I2C_M_RD,
  30                         .buf = data,
  31                         .len = length
  32                 },
  33         };
  34 
  35         err = i2c_transfer(&mantis->adapter, msg, 2);
  36         if (err < 0) {
  37                 dprintk(verbose, MANTIS_ERROR, 1,
  38                         "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
  39                         err, data[0], data[1]);
  40 
  41                 return err;
  42         }
  43 
  44         return 0;
  45 }
  46 
  47 static int get_mac_address(struct mantis_pci *mantis)
  48 {
  49         int err;
  50 
  51         mantis->mac_address[0] = 0x08;
  52         err = read_eeprom_byte(mantis, &mantis->mac_address[0], 6);
  53         if (err < 0) {
  54                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis EEPROM read error");
  55 
  56                 return err;
  57         }
  58         dprintk(verbose, MANTIS_ERROR, 0,
  59                 "    MAC Address=[%pM]\n", mantis->mac_address);
  60 
  61         return 0;
  62 }
  63 
  64 #define MANTIS_MODEL_UNKNOWN    "UNKNOWN"
  65 #define MANTIS_DEV_UNKNOWN      "UNKNOWN"
  66 
  67 struct mantis_hwconfig unknown_device = {
  68         .model_name     = MANTIS_MODEL_UNKNOWN,
  69         .dev_type       = MANTIS_DEV_UNKNOWN,
  70 };
  71 
  72 static void mantis_load_config(struct mantis_pci *mantis)
  73 {
  74         switch (mantis->subsystem_device) {
  75         case MANTIS_VP_1033_DVB_S:      /* VP-1033 */
  76                 mantis->hwconfig = &vp1033_mantis_config;
  77                 break;
  78         case MANTIS_VP_1034_DVB_S:      /* VP-1034 */
  79                 mantis->hwconfig = &vp1034_mantis_config;
  80                 break;
  81         case MANTIS_VP_1041_DVB_S2:     /* VP-1041 */
  82         case TECHNISAT_SKYSTAR_HD2:
  83                 mantis->hwconfig = &vp1041_mantis_config;
  84                 break;
  85         case MANTIS_VP_2033_DVB_C:      /* VP-2033 */
  86                 mantis->hwconfig = &vp2033_mantis_config;
  87                 break;
  88         case MANTIS_VP_2040_DVB_C:      /* VP-2040 */
  89         case CINERGY_C: /* VP-2040 clone */
  90         case TECHNISAT_CABLESTAR_HD2:
  91                 mantis->hwconfig = &vp2040_mantis_config;
  92                 break;
  93         case MANTIS_VP_3030_DVB_T:      /* VP-3030 */
  94                 mantis->hwconfig = &vp3030_mantis_config;
  95                 break;
  96         default:
  97                 mantis->hwconfig = &unknown_device;
  98                 break;
  99         }
 100 }
 101 
 102 int mantis_core_init(struct mantis_pci *mantis)
 103 {
 104         int err = 0;
 105 
 106         mantis_load_config(mantis);
 107         dprintk(verbose, MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
 108                 mantis->hwconfig->model_name, mantis->hwconfig->dev_type,
 109                 mantis->pdev->bus->number, PCI_SLOT(mantis->pdev->devfn), PCI_FUNC(mantis->pdev->devfn));
 110         dprintk(verbose, MANTIS_ERROR, 0, "    Mantis Rev %d [%04x:%04x], ",
 111                 mantis->revision,
 112                 mantis->subsystem_vendor, mantis->subsystem_device);
 113         dprintk(verbose, MANTIS_ERROR, 0,
 114                 "irq: %d, latency: %d\n    memory: 0x%lx, mmio: 0x%p\n",
 115                 mantis->pdev->irq, mantis->latency,
 116                 mantis->mantis_addr, mantis->mantis_mmio);
 117 
 118         err = mantis_i2c_init(mantis);
 119         if (err < 0) {
 120                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis I2C init failed");
 121                 return err;
 122         }
 123         err = get_mac_address(mantis);
 124         if (err < 0) {
 125                 dprintk(verbose, MANTIS_ERROR, 1, "get MAC address failed");
 126                 return err;
 127         }
 128         err = mantis_dma_init(mantis);
 129         if (err < 0) {
 130                 dprintk(verbose, MANTIS_ERROR, 1, "Mantis DMA init failed");
 131                 return err;
 132         }
 133         err = mantis_dvb_init(mantis);
 134         if (err < 0) {
 135                 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis DVB init failed");
 136                 return err;
 137         }
 138         err = mantis_uart_init(mantis);
 139         if (err < 0) {
 140                 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis UART init failed");
 141                 return err;
 142         }
 143 
 144         return 0;
 145 }
 146 
 147 int mantis_core_exit(struct mantis_pci *mantis)
 148 {
 149         mantis_dma_stop(mantis);
 150         dprintk(verbose, MANTIS_ERROR, 1, "DMA engine stopping");
 151 
 152         mantis_uart_exit(mantis);
 153         dprintk(verbose, MANTIS_ERROR, 1, "UART exit failed");
 154 
 155         if (mantis_dma_exit(mantis) < 0)
 156                 dprintk(verbose, MANTIS_ERROR, 1, "DMA exit failed");
 157         if (mantis_dvb_exit(mantis) < 0)
 158                 dprintk(verbose, MANTIS_ERROR, 1, "DVB exit failed");
 159         if (mantis_i2c_exit(mantis) < 0)
 160                 dprintk(verbose, MANTIS_ERROR, 1, "I2C adapter delete.. failed");
 161 
 162         return 0;
 163 }
 164 
 165 /* Turn the given bit on or off. */
 166 void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
 167 {
 168         u32 cur;
 169 
 170         cur = mmread(MANTIS_GPIF_ADDR);
 171         if (value)
 172                 mantis->gpio_status = cur | (1 << bitpos);
 173         else
 174                 mantis->gpio_status = cur & (~(1 << bitpos));
 175 
 176         mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
 177         mmwrite(0x00, MANTIS_GPIF_DOUT);
 178         udelay(100);
 179 }
 180 
 181 /* direction = 0 , no CI passthrough ; 1 , CI passthrough */
 182 void mantis_set_direction(struct mantis_pci *mantis, int direction)
 183 {
 184         u32 reg;
 185 
 186         reg = mmread(0x28);
 187         dprintk(verbose, MANTIS_DEBUG, 1, "TS direction setup");
 188         if (direction == 0x01) {
 189                 /* to CI */
 190                 reg |= 0x04;
 191                 mmwrite(reg, 0x28);
 192                 reg &= 0xff - 0x04;
 193                 mmwrite(reg, 0x28);
 194         } else {
 195                 reg &= 0xff - 0x04;
 196                 mmwrite(reg, 0x28);
 197                 reg |= 0x04;
 198                 mmwrite(reg, 0x28);
 199         }
 200 }

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