linux/drivers/media/pci/smipcie/smipcie-main.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * SMI PCIe driver for DVBSky cards.
   4 *
   5 * Copyright (C) 2014 Max nibble <nibble.max@gmail.com>
   6 */
   7
   8#include "smipcie.h"
   9#include "m88ds3103.h"
  10#include "ts2020.h"
  11#include "m88rs6000t.h"
  12#include "si2168.h"
  13#include "si2157.h"
  14
  15DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  16
  17static int smi_hw_init(struct smi_dev *dev)
  18{
  19        u32 port_mux, port_ctrl, int_stat;
  20
  21        /* set port mux.*/
  22        port_mux = smi_read(MUX_MODE_CTRL);
  23        port_mux &= ~(rbPaMSMask);
  24        port_mux |= rbPaMSDtvNoGpio;
  25        port_mux &= ~(rbPbMSMask);
  26        port_mux |= rbPbMSDtvNoGpio;
  27        port_mux &= ~(0x0f0000);
  28        port_mux |= 0x50000;
  29        smi_write(MUX_MODE_CTRL, port_mux);
  30
  31        /* set DTV register.*/
  32        /* Port A */
  33        port_ctrl = smi_read(VIDEO_CTRL_STATUS_A);
  34        port_ctrl &= ~0x01;
  35        smi_write(VIDEO_CTRL_STATUS_A, port_ctrl);
  36        port_ctrl = smi_read(MPEG2_CTRL_A);
  37        port_ctrl &= ~0x40;
  38        port_ctrl |= 0x80;
  39        smi_write(MPEG2_CTRL_A, port_ctrl);
  40        /* Port B */
  41        port_ctrl = smi_read(VIDEO_CTRL_STATUS_B);
  42        port_ctrl &= ~0x01;
  43        smi_write(VIDEO_CTRL_STATUS_B, port_ctrl);
  44        port_ctrl = smi_read(MPEG2_CTRL_B);
  45        port_ctrl &= ~0x40;
  46        port_ctrl |= 0x80;
  47        smi_write(MPEG2_CTRL_B, port_ctrl);
  48
  49        /* disable and clear interrupt.*/
  50        smi_write(MSI_INT_ENA_CLR, ALL_INT);
  51        int_stat = smi_read(MSI_INT_STATUS);
  52        smi_write(MSI_INT_STATUS_CLR, int_stat);
  53
  54        /* reset demod.*/
  55        smi_clear(PERIPHERAL_CTRL, 0x0303);
  56        msleep(50);
  57        smi_set(PERIPHERAL_CTRL, 0x0101);
  58        return 0;
  59}
  60
  61/* i2c bit bus.*/
  62static void smi_i2c_cfg(struct smi_dev *dev, u32 sw_ctl)
  63{
  64        u32 dwCtrl;
  65
  66        dwCtrl = smi_read(sw_ctl);
  67        dwCtrl &= ~0x18; /* disable output.*/
  68        dwCtrl |= 0x21; /* reset and software mode.*/
  69        dwCtrl &= ~0xff00;
  70        dwCtrl |= 0x6400;
  71        smi_write(sw_ctl, dwCtrl);
  72        msleep(20);
  73        dwCtrl = smi_read(sw_ctl);
  74        dwCtrl &= ~0x20;
  75        smi_write(sw_ctl, dwCtrl);
  76}
  77
  78static void smi_i2c_setsda(struct smi_dev *dev, int state, u32 sw_ctl)
  79{
  80        if (state) {
  81                /* set as input.*/
  82                smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
  83        } else {
  84                smi_clear(sw_ctl, SW_I2C_MSK_DAT_OUT);
  85                /* set as output.*/
  86                smi_set(sw_ctl, SW_I2C_MSK_DAT_EN);
  87        }
  88}
  89
  90static void smi_i2c_setscl(void *data, int state, u32 sw_ctl)
  91{
  92        struct smi_dev *dev = data;
  93
  94        if (state) {
  95                /* set as input.*/
  96                smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
  97        } else {
  98                smi_clear(sw_ctl, SW_I2C_MSK_CLK_OUT);
  99                /* set as output.*/
 100                smi_set(sw_ctl, SW_I2C_MSK_CLK_EN);
 101        }
 102}
 103
 104static int smi_i2c_getsda(void *data, u32 sw_ctl)
 105{
 106        struct smi_dev *dev = data;
 107        /* set as input.*/
 108        smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
 109        udelay(1);
 110        return (smi_read(sw_ctl) & SW_I2C_MSK_DAT_IN) ? 1 : 0;
 111}
 112
 113static int smi_i2c_getscl(void *data, u32 sw_ctl)
 114{
 115        struct smi_dev *dev = data;
 116        /* set as input.*/
 117        smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
 118        udelay(1);
 119        return (smi_read(sw_ctl) & SW_I2C_MSK_CLK_IN) ? 1 : 0;
 120}
 121/* i2c 0.*/
 122static void smi_i2c0_setsda(void *data, int state)
 123{
 124        struct smi_dev *dev = data;
 125
 126        smi_i2c_setsda(dev, state, I2C_A_SW_CTL);
 127}
 128
 129static void smi_i2c0_setscl(void *data, int state)
 130{
 131        struct smi_dev *dev = data;
 132
 133        smi_i2c_setscl(dev, state, I2C_A_SW_CTL);
 134}
 135
 136static int smi_i2c0_getsda(void *data)
 137{
 138        struct smi_dev *dev = data;
 139
 140        return  smi_i2c_getsda(dev, I2C_A_SW_CTL);
 141}
 142
 143static int smi_i2c0_getscl(void *data)
 144{
 145        struct smi_dev *dev = data;
 146
 147        return  smi_i2c_getscl(dev, I2C_A_SW_CTL);
 148}
 149/* i2c 1.*/
 150static void smi_i2c1_setsda(void *data, int state)
 151{
 152        struct smi_dev *dev = data;
 153
 154        smi_i2c_setsda(dev, state, I2C_B_SW_CTL);
 155}
 156
 157static void smi_i2c1_setscl(void *data, int state)
 158{
 159        struct smi_dev *dev = data;
 160
 161        smi_i2c_setscl(dev, state, I2C_B_SW_CTL);
 162}
 163
 164static int smi_i2c1_getsda(void *data)
 165{
 166        struct smi_dev *dev = data;
 167
 168        return  smi_i2c_getsda(dev, I2C_B_SW_CTL);
 169}
 170
 171static int smi_i2c1_getscl(void *data)
 172{
 173        struct smi_dev *dev = data;
 174
 175        return  smi_i2c_getscl(dev, I2C_B_SW_CTL);
 176}
 177
 178static int smi_i2c_init(struct smi_dev *dev)
 179{
 180        int ret;
 181
 182        /* i2c bus 0 */
 183        smi_i2c_cfg(dev, I2C_A_SW_CTL);
 184        i2c_set_adapdata(&dev->i2c_bus[0], dev);
 185        strscpy(dev->i2c_bus[0].name, "SMI-I2C0", sizeof(dev->i2c_bus[0].name));
 186        dev->i2c_bus[0].owner = THIS_MODULE;
 187        dev->i2c_bus[0].dev.parent = &dev->pci_dev->dev;
 188        dev->i2c_bus[0].algo_data = &dev->i2c_bit[0];
 189        dev->i2c_bit[0].data = dev;
 190        dev->i2c_bit[0].setsda = smi_i2c0_setsda;
 191        dev->i2c_bit[0].setscl = smi_i2c0_setscl;
 192        dev->i2c_bit[0].getsda = smi_i2c0_getsda;
 193        dev->i2c_bit[0].getscl = smi_i2c0_getscl;
 194        dev->i2c_bit[0].udelay = 12;
 195        dev->i2c_bit[0].timeout = 10;
 196        /* Raise SCL and SDA */
 197        smi_i2c0_setsda(dev, 1);
 198        smi_i2c0_setscl(dev, 1);
 199
 200        ret = i2c_bit_add_bus(&dev->i2c_bus[0]);
 201        if (ret < 0)
 202                return ret;
 203
 204        /* i2c bus 1 */
 205        smi_i2c_cfg(dev, I2C_B_SW_CTL);
 206        i2c_set_adapdata(&dev->i2c_bus[1], dev);
 207        strscpy(dev->i2c_bus[1].name, "SMI-I2C1", sizeof(dev->i2c_bus[1].name));
 208        dev->i2c_bus[1].owner = THIS_MODULE;
 209        dev->i2c_bus[1].dev.parent = &dev->pci_dev->dev;
 210        dev->i2c_bus[1].algo_data = &dev->i2c_bit[1];
 211        dev->i2c_bit[1].data = dev;
 212        dev->i2c_bit[1].setsda = smi_i2c1_setsda;
 213        dev->i2c_bit[1].setscl = smi_i2c1_setscl;
 214        dev->i2c_bit[1].getsda = smi_i2c1_getsda;
 215        dev->i2c_bit[1].getscl = smi_i2c1_getscl;
 216        dev->i2c_bit[1].udelay = 12;
 217        dev->i2c_bit[1].timeout = 10;
 218        /* Raise SCL and SDA */
 219        smi_i2c1_setsda(dev, 1);
 220        smi_i2c1_setscl(dev, 1);
 221
 222        ret = i2c_bit_add_bus(&dev->i2c_bus[1]);
 223        if (ret < 0)
 224                i2c_del_adapter(&dev->i2c_bus[0]);
 225
 226        return ret;
 227}
 228
 229static void smi_i2c_exit(struct smi_dev *dev)
 230{
 231        i2c_del_adapter(&dev->i2c_bus[0]);
 232        i2c_del_adapter(&dev->i2c_bus[1]);
 233}
 234
 235static int smi_read_eeprom(struct i2c_adapter *i2c, u16 reg, u8 *data, u16 size)
 236{
 237        int ret;
 238        u8 b0[2] = { (reg >> 8) & 0xff, reg & 0xff };
 239
 240        struct i2c_msg msg[] = {
 241                { .addr = 0x50, .flags = 0,
 242                        .buf = b0, .len = 2 },
 243                { .addr = 0x50, .flags = I2C_M_RD,
 244                        .buf = data, .len = size }
 245        };
 246
 247        ret = i2c_transfer(i2c, msg, 2);
 248
 249        if (ret != 2) {
 250                dev_err(&i2c->dev, "%s: reg=0x%x (error=%d)\n",
 251                        __func__, reg, ret);
 252                return ret;
 253        }
 254        return ret;
 255}
 256
 257/* ts port interrupt operations */
 258static void smi_port_disableInterrupt(struct smi_port *port)
 259{
 260        struct smi_dev *dev = port->dev;
 261
 262        smi_write(MSI_INT_ENA_CLR,
 263                (port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
 264}
 265
 266static void smi_port_enableInterrupt(struct smi_port *port)
 267{
 268        struct smi_dev *dev = port->dev;
 269
 270        smi_write(MSI_INT_ENA_SET,
 271                (port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
 272}
 273
 274static void smi_port_clearInterrupt(struct smi_port *port)
 275{
 276        struct smi_dev *dev = port->dev;
 277
 278        smi_write(MSI_INT_STATUS_CLR,
 279                (port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
 280}
 281
 282/* tasklet handler: DMA data to dmx.*/
 283static void smi_dma_xfer(struct tasklet_struct *t)
 284{
 285        struct smi_port *port = from_tasklet(port, t, tasklet);
 286        struct smi_dev *dev = port->dev;
 287        u32 intr_status, finishedData, dmaManagement;
 288        u8 dmaChan0State, dmaChan1State;
 289
 290        intr_status = port->_int_status;
 291        dmaManagement = smi_read(port->DMA_MANAGEMENT);
 292        dmaChan0State = (u8)((dmaManagement & 0x00000030) >> 4);
 293        dmaChan1State = (u8)((dmaManagement & 0x00300000) >> 20);
 294
 295        /* CH-0 DMA interrupt.*/
 296        if ((intr_status & port->_dmaInterruptCH0) && (dmaChan0State == 0x01)) {
 297                dev_dbg(&dev->pci_dev->dev,
 298                        "Port[%d]-DMA CH0 engine complete successful !\n",
 299                        port->idx);
 300                finishedData = smi_read(port->DMA_CHAN0_TRANS_STATE);
 301                finishedData &= 0x003FFFFF;
 302                /* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
 303                 * indicate dma total transfer length and
 304                 * zero of [21:0] indicate dma total transfer length
 305                 * equal to 0x400000 (4MB)*/
 306                if (finishedData == 0)
 307                        finishedData = 0x00400000;
 308                if (finishedData != SMI_TS_DMA_BUF_SIZE) {
 309                        dev_dbg(&dev->pci_dev->dev,
 310                                "DMA CH0 engine complete length mismatched, finish data=%d !\n",
 311                                finishedData);
 312                }
 313                dvb_dmx_swfilter_packets(&port->demux,
 314                        port->cpu_addr[0], (finishedData / 188));
 315                /*dvb_dmx_swfilter(&port->demux,
 316                        port->cpu_addr[0], finishedData);*/
 317        }
 318        /* CH-1 DMA interrupt.*/
 319        if ((intr_status & port->_dmaInterruptCH1) && (dmaChan1State == 0x01)) {
 320                dev_dbg(&dev->pci_dev->dev,
 321                        "Port[%d]-DMA CH1 engine complete successful !\n",
 322                        port->idx);
 323                finishedData = smi_read(port->DMA_CHAN1_TRANS_STATE);
 324                finishedData &= 0x003FFFFF;
 325                /* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
 326                 * indicate dma total transfer length and
 327                 * zero of [21:0] indicate dma total transfer length
 328                 * equal to 0x400000 (4MB)*/
 329                if (finishedData == 0)
 330                        finishedData = 0x00400000;
 331                if (finishedData != SMI_TS_DMA_BUF_SIZE) {
 332                        dev_dbg(&dev->pci_dev->dev,
 333                                "DMA CH1 engine complete length mismatched, finish data=%d !\n",
 334                                finishedData);
 335                }
 336                dvb_dmx_swfilter_packets(&port->demux,
 337                        port->cpu_addr[1], (finishedData / 188));
 338                /*dvb_dmx_swfilter(&port->demux,
 339                        port->cpu_addr[1], finishedData);*/
 340        }
 341        /* restart DMA.*/
 342        if (intr_status & port->_dmaInterruptCH0)
 343                dmaManagement |= 0x00000002;
 344        if (intr_status & port->_dmaInterruptCH1)
 345                dmaManagement |= 0x00020000;
 346        smi_write(port->DMA_MANAGEMENT, dmaManagement);
 347        /* Re-enable interrupts */
 348        smi_port_enableInterrupt(port);
 349}
 350
 351static void smi_port_dma_free(struct smi_port *port)
 352{
 353        if (port->cpu_addr[0]) {
 354                dma_free_coherent(&port->dev->pci_dev->dev,
 355                                  SMI_TS_DMA_BUF_SIZE, port->cpu_addr[0],
 356                                  port->dma_addr[0]);
 357                port->cpu_addr[0] = NULL;
 358        }
 359        if (port->cpu_addr[1]) {
 360                dma_free_coherent(&port->dev->pci_dev->dev,
 361                                  SMI_TS_DMA_BUF_SIZE, port->cpu_addr[1],
 362                                  port->dma_addr[1]);
 363                port->cpu_addr[1] = NULL;
 364        }
 365}
 366
 367static int smi_port_init(struct smi_port *port, int dmaChanUsed)
 368{
 369        dev_dbg(&port->dev->pci_dev->dev,
 370                "%s, port %d, dmaused %d\n", __func__, port->idx, dmaChanUsed);
 371        port->enable = 0;
 372        if (port->idx == 0) {
 373                /* Port A */
 374                port->_dmaInterruptCH0 = dmaChanUsed & 0x01;
 375                port->_dmaInterruptCH1 = dmaChanUsed & 0x02;
 376
 377                port->DMA_CHAN0_ADDR_LOW        = DMA_PORTA_CHAN0_ADDR_LOW;
 378                port->DMA_CHAN0_ADDR_HI         = DMA_PORTA_CHAN0_ADDR_HI;
 379                port->DMA_CHAN0_TRANS_STATE     = DMA_PORTA_CHAN0_TRANS_STATE;
 380                port->DMA_CHAN0_CONTROL         = DMA_PORTA_CHAN0_CONTROL;
 381                port->DMA_CHAN1_ADDR_LOW        = DMA_PORTA_CHAN1_ADDR_LOW;
 382                port->DMA_CHAN1_ADDR_HI         = DMA_PORTA_CHAN1_ADDR_HI;
 383                port->DMA_CHAN1_TRANS_STATE     = DMA_PORTA_CHAN1_TRANS_STATE;
 384                port->DMA_CHAN1_CONTROL         = DMA_PORTA_CHAN1_CONTROL;
 385                port->DMA_MANAGEMENT            = DMA_PORTA_MANAGEMENT;
 386        } else {
 387                /* Port B */
 388                port->_dmaInterruptCH0 = (dmaChanUsed << 2) & 0x04;
 389                port->_dmaInterruptCH1 = (dmaChanUsed << 2) & 0x08;
 390
 391                port->DMA_CHAN0_ADDR_LOW        = DMA_PORTB_CHAN0_ADDR_LOW;
 392                port->DMA_CHAN0_ADDR_HI         = DMA_PORTB_CHAN0_ADDR_HI;
 393                port->DMA_CHAN0_TRANS_STATE     = DMA_PORTB_CHAN0_TRANS_STATE;
 394                port->DMA_CHAN0_CONTROL         = DMA_PORTB_CHAN0_CONTROL;
 395                port->DMA_CHAN1_ADDR_LOW        = DMA_PORTB_CHAN1_ADDR_LOW;
 396                port->DMA_CHAN1_ADDR_HI         = DMA_PORTB_CHAN1_ADDR_HI;
 397                port->DMA_CHAN1_TRANS_STATE     = DMA_PORTB_CHAN1_TRANS_STATE;
 398                port->DMA_CHAN1_CONTROL         = DMA_PORTB_CHAN1_CONTROL;
 399                port->DMA_MANAGEMENT            = DMA_PORTB_MANAGEMENT;
 400        }
 401
 402        if (port->_dmaInterruptCH0) {
 403                port->cpu_addr[0] = dma_alloc_coherent(&port->dev->pci_dev->dev,
 404                                                       SMI_TS_DMA_BUF_SIZE,
 405                                                       &port->dma_addr[0],
 406                                                       GFP_KERNEL);
 407                if (!port->cpu_addr[0]) {
 408                        dev_err(&port->dev->pci_dev->dev,
 409                                "Port[%d] DMA CH0 memory allocation failed!\n",
 410                                port->idx);
 411                        goto err;
 412                }
 413        }
 414
 415        if (port->_dmaInterruptCH1) {
 416                port->cpu_addr[1] = dma_alloc_coherent(&port->dev->pci_dev->dev,
 417                                                       SMI_TS_DMA_BUF_SIZE,
 418                                                       &port->dma_addr[1],
 419                                                       GFP_KERNEL);
 420                if (!port->cpu_addr[1]) {
 421                        dev_err(&port->dev->pci_dev->dev,
 422                                "Port[%d] DMA CH1 memory allocation failed!\n",
 423                                port->idx);
 424                        goto err;
 425                }
 426        }
 427
 428        smi_port_disableInterrupt(port);
 429        tasklet_setup(&port->tasklet, smi_dma_xfer);
 430        tasklet_disable(&port->tasklet);
 431        port->enable = 1;
 432        return 0;
 433err:
 434        smi_port_dma_free(port);
 435        return -ENOMEM;
 436}
 437
 438static void smi_port_exit(struct smi_port *port)
 439{
 440        smi_port_disableInterrupt(port);
 441        tasklet_kill(&port->tasklet);
 442        smi_port_dma_free(port);
 443        port->enable = 0;
 444}
 445
 446static int smi_port_irq(struct smi_port *port, u32 int_status)
 447{
 448        u32 port_req_irq = port->_dmaInterruptCH0 | port->_dmaInterruptCH1;
 449        int handled = 0;
 450
 451        if (int_status & port_req_irq) {
 452                smi_port_disableInterrupt(port);
 453                port->_int_status = int_status;
 454                smi_port_clearInterrupt(port);
 455                tasklet_schedule(&port->tasklet);
 456                handled = 1;
 457        }
 458        return handled;
 459}
 460
 461static irqreturn_t smi_irq_handler(int irq, void *dev_id)
 462{
 463        struct smi_dev *dev = dev_id;
 464        struct smi_port *port0 = &dev->ts_port[0];
 465        struct smi_port *port1 = &dev->ts_port[1];
 466        struct smi_rc *ir = &dev->ir;
 467        int handled = 0;
 468
 469        u32 intr_status = smi_read(MSI_INT_STATUS);
 470
 471        /* ts0 interrupt.*/
 472        if (dev->info->ts_0)
 473                handled += smi_port_irq(port0, intr_status);
 474
 475        /* ts1 interrupt.*/
 476        if (dev->info->ts_1)
 477                handled += smi_port_irq(port1, intr_status);
 478
 479        /* ir interrupt.*/
 480        handled += smi_ir_irq(ir, intr_status);
 481
 482        return IRQ_RETVAL(handled);
 483}
 484
 485static struct i2c_client *smi_add_i2c_client(struct i2c_adapter *adapter,
 486                        struct i2c_board_info *info)
 487{
 488        struct i2c_client *client;
 489
 490        request_module(info->type);
 491        client = i2c_new_client_device(adapter, info);
 492        if (!i2c_client_has_driver(client))
 493                goto err_add_i2c_client;
 494
 495        if (!try_module_get(client->dev.driver->owner)) {
 496                i2c_unregister_device(client);
 497                goto err_add_i2c_client;
 498        }
 499        return client;
 500
 501err_add_i2c_client:
 502        client = NULL;
 503        return client;
 504}
 505
 506static void smi_del_i2c_client(struct i2c_client *client)
 507{
 508        module_put(client->dev.driver->owner);
 509        i2c_unregister_device(client);
 510}
 511
 512static const struct m88ds3103_config smi_dvbsky_m88ds3103_cfg = {
 513        .i2c_addr = 0x68,
 514        .clock = 27000000,
 515        .i2c_wr_max = 33,
 516        .clock_out = 0,
 517        .ts_mode = M88DS3103_TS_PARALLEL,
 518        .ts_clk = 16000,
 519        .ts_clk_pol = 1,
 520        .agc = 0x99,
 521        .lnb_hv_pol = 0,
 522        .lnb_en_pol = 1,
 523};
 524
 525static int smi_dvbsky_m88ds3103_fe_attach(struct smi_port *port)
 526{
 527        int ret = 0;
 528        struct smi_dev *dev = port->dev;
 529        struct i2c_adapter *i2c;
 530        /* tuner I2C module */
 531        struct i2c_adapter *tuner_i2c_adapter;
 532        struct i2c_client *tuner_client;
 533        struct i2c_board_info tuner_info;
 534        struct ts2020_config ts2020_config = {};
 535        memset(&tuner_info, 0, sizeof(struct i2c_board_info));
 536        i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
 537
 538        /* attach demod */
 539        port->fe = dvb_attach(m88ds3103_attach,
 540                        &smi_dvbsky_m88ds3103_cfg, i2c, &tuner_i2c_adapter);
 541        if (!port->fe) {
 542                ret = -ENODEV;
 543                return ret;
 544        }
 545        /* attach tuner */
 546        ts2020_config.fe = port->fe;
 547        strscpy(tuner_info.type, "ts2020", I2C_NAME_SIZE);
 548        tuner_info.addr = 0x60;
 549        tuner_info.platform_data = &ts2020_config;
 550        tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
 551        if (!tuner_client) {
 552                ret = -ENODEV;
 553                goto err_tuner_i2c_device;
 554        }
 555
 556        /* delegate signal strength measurement to tuner */
 557        port->fe->ops.read_signal_strength =
 558                        port->fe->ops.tuner_ops.get_rf_strength;
 559
 560        port->i2c_client_tuner = tuner_client;
 561        return ret;
 562
 563err_tuner_i2c_device:
 564        dvb_frontend_detach(port->fe);
 565        return ret;
 566}
 567
 568static const struct m88ds3103_config smi_dvbsky_m88rs6000_cfg = {
 569        .i2c_addr = 0x69,
 570        .clock = 27000000,
 571        .i2c_wr_max = 33,
 572        .ts_mode = M88DS3103_TS_PARALLEL,
 573        .ts_clk = 16000,
 574        .ts_clk_pol = 1,
 575        .agc = 0x99,
 576        .lnb_hv_pol = 0,
 577        .lnb_en_pol = 1,
 578};
 579
 580static int smi_dvbsky_m88rs6000_fe_attach(struct smi_port *port)
 581{
 582        int ret = 0;
 583        struct smi_dev *dev = port->dev;
 584        struct i2c_adapter *i2c;
 585        /* tuner I2C module */
 586        struct i2c_adapter *tuner_i2c_adapter;
 587        struct i2c_client *tuner_client;
 588        struct i2c_board_info tuner_info;
 589        struct m88rs6000t_config m88rs6000t_config;
 590
 591        memset(&tuner_info, 0, sizeof(struct i2c_board_info));
 592        i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
 593
 594        /* attach demod */
 595        port->fe = dvb_attach(m88ds3103_attach,
 596                        &smi_dvbsky_m88rs6000_cfg, i2c, &tuner_i2c_adapter);
 597        if (!port->fe) {
 598                ret = -ENODEV;
 599                return ret;
 600        }
 601        /* attach tuner */
 602        m88rs6000t_config.fe = port->fe;
 603        strscpy(tuner_info.type, "m88rs6000t", I2C_NAME_SIZE);
 604        tuner_info.addr = 0x21;
 605        tuner_info.platform_data = &m88rs6000t_config;
 606        tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
 607        if (!tuner_client) {
 608                ret = -ENODEV;
 609                goto err_tuner_i2c_device;
 610        }
 611
 612        /* delegate signal strength measurement to tuner */
 613        port->fe->ops.read_signal_strength =
 614                        port->fe->ops.tuner_ops.get_rf_strength;
 615
 616        port->i2c_client_tuner = tuner_client;
 617        return ret;
 618
 619err_tuner_i2c_device:
 620        dvb_frontend_detach(port->fe);
 621        return ret;
 622}
 623
 624static int smi_dvbsky_sit2_fe_attach(struct smi_port *port)
 625{
 626        int ret = 0;
 627        struct smi_dev *dev = port->dev;
 628        struct i2c_adapter *i2c;
 629        struct i2c_adapter *tuner_i2c_adapter;
 630        struct i2c_client *client_tuner, *client_demod;
 631        struct i2c_board_info client_info;
 632        struct si2168_config si2168_config;
 633        struct si2157_config si2157_config;
 634
 635        /* select i2c bus */
 636        i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
 637
 638        /* attach demod */
 639        memset(&si2168_config, 0, sizeof(si2168_config));
 640        si2168_config.i2c_adapter = &tuner_i2c_adapter;
 641        si2168_config.fe = &port->fe;
 642        si2168_config.ts_mode = SI2168_TS_PARALLEL;
 643
 644        memset(&client_info, 0, sizeof(struct i2c_board_info));
 645        strscpy(client_info.type, "si2168", I2C_NAME_SIZE);
 646        client_info.addr = 0x64;
 647        client_info.platform_data = &si2168_config;
 648
 649        client_demod = smi_add_i2c_client(i2c, &client_info);
 650        if (!client_demod) {
 651                ret = -ENODEV;
 652                return ret;
 653        }
 654        port->i2c_client_demod = client_demod;
 655
 656        /* attach tuner */
 657        memset(&si2157_config, 0, sizeof(si2157_config));
 658        si2157_config.fe = port->fe;
 659        si2157_config.if_port = 1;
 660
 661        memset(&client_info, 0, sizeof(struct i2c_board_info));
 662        strscpy(client_info.type, "si2157", I2C_NAME_SIZE);
 663        client_info.addr = 0x60;
 664        client_info.platform_data = &si2157_config;
 665
 666        client_tuner = smi_add_i2c_client(tuner_i2c_adapter, &client_info);
 667        if (!client_tuner) {
 668                smi_del_i2c_client(port->i2c_client_demod);
 669                port->i2c_client_demod = NULL;
 670                ret = -ENODEV;
 671                return ret;
 672        }
 673        port->i2c_client_tuner = client_tuner;
 674        return ret;
 675}
 676
 677static int smi_fe_init(struct smi_port *port)
 678{
 679        int ret = 0;
 680        struct smi_dev *dev = port->dev;
 681        struct dvb_adapter *adap = &port->dvb_adapter;
 682        u8 mac_ee[16];
 683
 684        dev_dbg(&port->dev->pci_dev->dev,
 685                "%s: port %d, fe_type = %d\n",
 686                __func__, port->idx, port->fe_type);
 687        switch (port->fe_type) {
 688        case DVBSKY_FE_M88DS3103:
 689                ret = smi_dvbsky_m88ds3103_fe_attach(port);
 690                break;
 691        case DVBSKY_FE_M88RS6000:
 692                ret = smi_dvbsky_m88rs6000_fe_attach(port);
 693                break;
 694        case DVBSKY_FE_SIT2:
 695                ret = smi_dvbsky_sit2_fe_attach(port);
 696                break;
 697        }
 698        if (ret < 0)
 699                return ret;
 700
 701        /* register dvb frontend */
 702        ret = dvb_register_frontend(adap, port->fe);
 703        if (ret < 0) {
 704                if (port->i2c_client_tuner)
 705                        smi_del_i2c_client(port->i2c_client_tuner);
 706                if (port->i2c_client_demod)
 707                        smi_del_i2c_client(port->i2c_client_demod);
 708                dvb_frontend_detach(port->fe);
 709                return ret;
 710        }
 711        /* init MAC.*/
 712        ret = smi_read_eeprom(&dev->i2c_bus[0], 0xc0, mac_ee, 16);
 713        dev_info(&port->dev->pci_dev->dev,
 714                "%s port %d MAC: %pM\n", dev->info->name,
 715                port->idx, mac_ee + (port->idx)*8);
 716        memcpy(adap->proposed_mac, mac_ee + (port->idx)*8, 6);
 717        return ret;
 718}
 719
 720static void smi_fe_exit(struct smi_port *port)
 721{
 722        dvb_unregister_frontend(port->fe);
 723        /* remove I2C demod and tuner */
 724        if (port->i2c_client_tuner)
 725                smi_del_i2c_client(port->i2c_client_tuner);
 726        if (port->i2c_client_demod)
 727                smi_del_i2c_client(port->i2c_client_demod);
 728        dvb_frontend_detach(port->fe);
 729}
 730
 731static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
 732                            int (*start_feed)(struct dvb_demux_feed *),
 733                            int (*stop_feed)(struct dvb_demux_feed *),
 734                            void *priv)
 735{
 736        dvbdemux->priv = priv;
 737
 738        dvbdemux->filternum = 256;
 739        dvbdemux->feednum = 256;
 740        dvbdemux->start_feed = start_feed;
 741        dvbdemux->stop_feed = stop_feed;
 742        dvbdemux->write_to_decoder = NULL;
 743        dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
 744                                      DMX_SECTION_FILTERING |
 745                                      DMX_MEMORY_BASED_FILTERING);
 746        return dvb_dmx_init(dvbdemux);
 747}
 748
 749static int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
 750                               struct dvb_demux *dvbdemux,
 751                               struct dmx_frontend *hw_frontend,
 752                               struct dmx_frontend *mem_frontend,
 753                               struct dvb_adapter *dvb_adapter)
 754{
 755        int ret;
 756
 757        dmxdev->filternum = 256;
 758        dmxdev->demux = &dvbdemux->dmx;
 759        dmxdev->capabilities = 0;
 760        ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
 761        if (ret < 0)
 762                return ret;
 763
 764        hw_frontend->source = DMX_FRONTEND_0;
 765        dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
 766        mem_frontend->source = DMX_MEMORY_FE;
 767        dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
 768        return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
 769}
 770
 771static u32 smi_config_DMA(struct smi_port *port)
 772{
 773        struct smi_dev *dev = port->dev;
 774        u32 totalLength = 0, dmaMemPtrLow, dmaMemPtrHi, dmaCtlReg;
 775        u8 chanLatencyTimer = 0, dmaChanEnable = 1, dmaTransStart = 1;
 776        u32 dmaManagement = 0, tlpTransUnit = DMA_TRANS_UNIT_188;
 777        u8 tlpTc = 0, tlpTd = 1, tlpEp = 0, tlpAttr = 0;
 778        u64 mem;
 779
 780        dmaManagement = smi_read(port->DMA_MANAGEMENT);
 781        /* Setup Channel-0 */
 782        if (port->_dmaInterruptCH0) {
 783                totalLength = SMI_TS_DMA_BUF_SIZE;
 784                mem = port->dma_addr[0];
 785                dmaMemPtrLow = mem & 0xffffffff;
 786                dmaMemPtrHi = mem >> 32;
 787                dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
 788                        | (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
 789                dmaManagement |= dmaChanEnable | (dmaTransStart << 1)
 790                        | (chanLatencyTimer << 8);
 791                /* write DMA register, start DMA engine */
 792                smi_write(port->DMA_CHAN0_ADDR_LOW, dmaMemPtrLow);
 793                smi_write(port->DMA_CHAN0_ADDR_HI, dmaMemPtrHi);
 794                smi_write(port->DMA_CHAN0_CONTROL, dmaCtlReg);
 795        }
 796        /* Setup Channel-1 */
 797        if (port->_dmaInterruptCH1) {
 798                totalLength = SMI_TS_DMA_BUF_SIZE;
 799                mem = port->dma_addr[1];
 800                dmaMemPtrLow = mem & 0xffffffff;
 801                dmaMemPtrHi = mem >> 32;
 802                dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
 803                        | (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
 804                dmaManagement |= (dmaChanEnable << 16) | (dmaTransStart << 17)
 805                        | (chanLatencyTimer << 24);
 806                /* write DMA register, start DMA engine */
 807                smi_write(port->DMA_CHAN1_ADDR_LOW, dmaMemPtrLow);
 808                smi_write(port->DMA_CHAN1_ADDR_HI, dmaMemPtrHi);
 809                smi_write(port->DMA_CHAN1_CONTROL, dmaCtlReg);
 810        }
 811        return dmaManagement;
 812}
 813
 814static int smi_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 815{
 816        struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 817        struct smi_port *port = dvbdmx->priv;
 818        struct smi_dev *dev = port->dev;
 819        u32 dmaManagement;
 820
 821        if (port->users++ == 0) {
 822                dmaManagement = smi_config_DMA(port);
 823                smi_port_clearInterrupt(port);
 824                smi_port_enableInterrupt(port);
 825                smi_write(port->DMA_MANAGEMENT, dmaManagement);
 826                tasklet_enable(&port->tasklet);
 827        }
 828        return port->users;
 829}
 830
 831static int smi_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 832{
 833        struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 834        struct smi_port *port = dvbdmx->priv;
 835        struct smi_dev *dev = port->dev;
 836
 837        if (--port->users)
 838                return port->users;
 839
 840        tasklet_disable(&port->tasklet);
 841        smi_port_disableInterrupt(port);
 842        smi_clear(port->DMA_MANAGEMENT, 0x30003);
 843        return 0;
 844}
 845
 846static int smi_dvb_init(struct smi_port *port)
 847{
 848        int ret;
 849        struct dvb_adapter *adap = &port->dvb_adapter;
 850        struct dvb_demux *dvbdemux = &port->demux;
 851
 852        dev_dbg(&port->dev->pci_dev->dev,
 853                "%s, port %d\n", __func__, port->idx);
 854
 855        ret = dvb_register_adapter(adap, "SMI_DVB", THIS_MODULE,
 856                                   &port->dev->pci_dev->dev,
 857                                   adapter_nr);
 858        if (ret < 0) {
 859                dev_err(&port->dev->pci_dev->dev, "Fail to register DVB adapter.\n");
 860                return ret;
 861        }
 862        ret = my_dvb_dmx_ts_card_init(dvbdemux, "SW demux",
 863                                      smi_start_feed,
 864                                      smi_stop_feed, port);
 865        if (ret < 0)
 866                goto err_del_dvb_register_adapter;
 867
 868        ret = my_dvb_dmxdev_ts_card_init(&port->dmxdev, &port->demux,
 869                                         &port->hw_frontend,
 870                                         &port->mem_frontend, adap);
 871        if (ret < 0)
 872                goto err_del_dvb_dmx;
 873
 874        ret = dvb_net_init(adap, &port->dvbnet, port->dmxdev.demux);
 875        if (ret < 0)
 876                goto err_del_dvb_dmxdev;
 877        return 0;
 878err_del_dvb_dmxdev:
 879        dvbdemux->dmx.close(&dvbdemux->dmx);
 880        dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
 881        dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
 882        dvb_dmxdev_release(&port->dmxdev);
 883err_del_dvb_dmx:
 884        dvb_dmx_release(&port->demux);
 885err_del_dvb_register_adapter:
 886        dvb_unregister_adapter(&port->dvb_adapter);
 887        return ret;
 888}
 889
 890static void smi_dvb_exit(struct smi_port *port)
 891{
 892        struct dvb_demux *dvbdemux = &port->demux;
 893
 894        dvb_net_release(&port->dvbnet);
 895
 896        dvbdemux->dmx.close(&dvbdemux->dmx);
 897        dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
 898        dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
 899        dvb_dmxdev_release(&port->dmxdev);
 900        dvb_dmx_release(&port->demux);
 901
 902        dvb_unregister_adapter(&port->dvb_adapter);
 903}
 904
 905static int smi_port_attach(struct smi_dev *dev,
 906                struct smi_port *port, int index)
 907{
 908        int ret, dmachs;
 909
 910        port->dev = dev;
 911        port->idx = index;
 912        port->fe_type = (index == 0) ? dev->info->fe_0 : dev->info->fe_1;
 913        dmachs = (index == 0) ? dev->info->ts_0 : dev->info->ts_1;
 914        /* port init.*/
 915        ret = smi_port_init(port, dmachs);
 916        if (ret < 0)
 917                return ret;
 918        /* dvb init.*/
 919        ret = smi_dvb_init(port);
 920        if (ret < 0)
 921                goto err_del_port_init;
 922        /* fe init.*/
 923        ret = smi_fe_init(port);
 924        if (ret < 0)
 925                goto err_del_dvb_init;
 926        return 0;
 927err_del_dvb_init:
 928        smi_dvb_exit(port);
 929err_del_port_init:
 930        smi_port_exit(port);
 931        return ret;
 932}
 933
 934static void smi_port_detach(struct smi_port *port)
 935{
 936        smi_fe_exit(port);
 937        smi_dvb_exit(port);
 938        smi_port_exit(port);
 939}
 940
 941static int smi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 942{
 943        struct smi_dev *dev;
 944        int ret = -ENOMEM;
 945
 946        if (pci_enable_device(pdev) < 0)
 947                return -ENODEV;
 948
 949        dev = kzalloc(sizeof(struct smi_dev), GFP_KERNEL);
 950        if (!dev) {
 951                ret = -ENOMEM;
 952                goto err_pci_disable_device;
 953        }
 954
 955        dev->pci_dev = pdev;
 956        pci_set_drvdata(pdev, dev);
 957        dev->info = (struct smi_cfg_info *) id->driver_data;
 958        dev_info(&dev->pci_dev->dev,
 959                "card detected: %s\n", dev->info->name);
 960
 961        dev->nr = dev->info->type;
 962        dev->lmmio = ioremap(pci_resource_start(dev->pci_dev, 0),
 963                            pci_resource_len(dev->pci_dev, 0));
 964        if (!dev->lmmio) {
 965                ret = -ENOMEM;
 966                goto err_kfree;
 967        }
 968
 969        /* should we set to 32bit DMA? */
 970        ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 971        if (ret < 0)
 972                goto err_pci_iounmap;
 973
 974        pci_set_master(pdev);
 975
 976        ret = smi_hw_init(dev);
 977        if (ret < 0)
 978                goto err_pci_iounmap;
 979
 980        ret = smi_i2c_init(dev);
 981        if (ret < 0)
 982                goto err_pci_iounmap;
 983
 984        if (dev->info->ts_0) {
 985                ret = smi_port_attach(dev, &dev->ts_port[0], 0);
 986                if (ret < 0)
 987                        goto err_del_i2c_adaptor;
 988        }
 989
 990        if (dev->info->ts_1) {
 991                ret = smi_port_attach(dev, &dev->ts_port[1], 1);
 992                if (ret < 0)
 993                        goto err_del_port0_attach;
 994        }
 995
 996        ret = smi_ir_init(dev);
 997        if (ret < 0)
 998                goto err_del_port1_attach;
 999
1000#ifdef CONFIG_PCI_MSI /* to do msi interrupt.???*/
1001        if (pci_msi_enabled())
1002                ret = pci_enable_msi(dev->pci_dev);
1003        if (ret)
1004                dev_info(&dev->pci_dev->dev, "MSI not available.\n");
1005#endif
1006
1007        ret = request_irq(dev->pci_dev->irq, smi_irq_handler,
1008                           IRQF_SHARED, "SMI_PCIE", dev);
1009        if (ret < 0)
1010                goto err_del_ir;
1011
1012        smi_ir_start(&dev->ir);
1013        return 0;
1014
1015err_del_ir:
1016        smi_ir_exit(dev);
1017err_del_port1_attach:
1018        if (dev->info->ts_1)
1019                smi_port_detach(&dev->ts_port[1]);
1020err_del_port0_attach:
1021        if (dev->info->ts_0)
1022                smi_port_detach(&dev->ts_port[0]);
1023err_del_i2c_adaptor:
1024        smi_i2c_exit(dev);
1025err_pci_iounmap:
1026        iounmap(dev->lmmio);
1027err_kfree:
1028        pci_set_drvdata(pdev, NULL);
1029        kfree(dev);
1030err_pci_disable_device:
1031        pci_disable_device(pdev);
1032        return ret;
1033}
1034
1035static void smi_remove(struct pci_dev *pdev)
1036{
1037        struct smi_dev *dev = pci_get_drvdata(pdev);
1038
1039        smi_write(MSI_INT_ENA_CLR, ALL_INT);
1040        free_irq(dev->pci_dev->irq, dev);
1041#ifdef CONFIG_PCI_MSI
1042        pci_disable_msi(dev->pci_dev);
1043#endif
1044        if (dev->info->ts_1)
1045                smi_port_detach(&dev->ts_port[1]);
1046        if (dev->info->ts_0)
1047                smi_port_detach(&dev->ts_port[0]);
1048
1049        smi_ir_exit(dev);
1050        smi_i2c_exit(dev);
1051        iounmap(dev->lmmio);
1052        pci_set_drvdata(pdev, NULL);
1053        pci_disable_device(pdev);
1054        kfree(dev);
1055}
1056
1057/* DVBSky cards */
1058static const struct smi_cfg_info dvbsky_s950_cfg = {
1059        .type = SMI_DVBSKY_S950,
1060        .name = "DVBSky S950 V3",
1061        .ts_0 = SMI_TS_NULL,
1062        .ts_1 = SMI_TS_DMA_BOTH,
1063        .fe_0 = DVBSKY_FE_NULL,
1064        .fe_1 = DVBSKY_FE_M88DS3103,
1065        .rc_map = RC_MAP_DVBSKY,
1066};
1067
1068static const struct smi_cfg_info dvbsky_s952_cfg = {
1069        .type = SMI_DVBSKY_S952,
1070        .name = "DVBSky S952 V3",
1071        .ts_0 = SMI_TS_DMA_BOTH,
1072        .ts_1 = SMI_TS_DMA_BOTH,
1073        .fe_0 = DVBSKY_FE_M88RS6000,
1074        .fe_1 = DVBSKY_FE_M88RS6000,
1075        .rc_map = RC_MAP_DVBSKY,
1076};
1077
1078static const struct smi_cfg_info dvbsky_t9580_cfg = {
1079        .type = SMI_DVBSKY_T9580,
1080        .name = "DVBSky T9580 V3",
1081        .ts_0 = SMI_TS_DMA_BOTH,
1082        .ts_1 = SMI_TS_DMA_BOTH,
1083        .fe_0 = DVBSKY_FE_SIT2,
1084        .fe_1 = DVBSKY_FE_M88DS3103,
1085        .rc_map = RC_MAP_DVBSKY,
1086};
1087
1088static const struct smi_cfg_info technotrend_s2_4200_cfg = {
1089        .type = SMI_TECHNOTREND_S2_4200,
1090        .name = "TechnoTrend TT-budget S2-4200 Twin",
1091        .ts_0 = SMI_TS_DMA_BOTH,
1092        .ts_1 = SMI_TS_DMA_BOTH,
1093        .fe_0 = DVBSKY_FE_M88RS6000,
1094        .fe_1 = DVBSKY_FE_M88RS6000,
1095        .rc_map = RC_MAP_TT_1500,
1096};
1097
1098/* PCI IDs */
1099#define SMI_ID(_subvend, _subdev, _driverdata) {        \
1100        .vendor      = SMI_VID,    .device    = SMI_PID, \
1101        .subvendor   = _subvend, .subdevice = _subdev, \
1102        .driver_data = (unsigned long)&_driverdata }
1103
1104static const struct pci_device_id smi_id_table[] = {
1105        SMI_ID(0x4254, 0x0550, dvbsky_s950_cfg),
1106        SMI_ID(0x4254, 0x0552, dvbsky_s952_cfg),
1107        SMI_ID(0x4254, 0x5580, dvbsky_t9580_cfg),
1108        SMI_ID(0x13c2, 0x3016, technotrend_s2_4200_cfg),
1109        {0}
1110};
1111MODULE_DEVICE_TABLE(pci, smi_id_table);
1112
1113static struct pci_driver smipcie_driver = {
1114        .name = "SMI PCIe driver",
1115        .id_table = smi_id_table,
1116        .probe = smi_probe,
1117        .remove = smi_remove,
1118};
1119
1120module_pci_driver(smipcie_driver);
1121
1122MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
1123MODULE_DESCRIPTION("SMI PCIe driver");
1124MODULE_LICENSE("GPL");
1125