linux/drivers/media/pci/pt1/pt1.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * driver for Earthsoft PT1/PT2
   4 *
   5 * Copyright (C) 2009 HIRANO Takahito <hiranotaka@zng.info>
   6 *
   7 * based on pt1dvr - http://pt1dvr.sourceforge.jp/
   8 *      by Tomoaki Ishikawa <tomy@users.sourceforge.jp>
   9 */
  10
  11#include <linux/kernel.h>
  12#include <linux/sched.h>
  13#include <linux/sched/signal.h>
  14#include <linux/hrtimer.h>
  15#include <linux/delay.h>
  16#include <linux/module.h>
  17#include <linux/slab.h>
  18#include <linux/vmalloc.h>
  19#include <linux/pci.h>
  20#include <linux/kthread.h>
  21#include <linux/freezer.h>
  22#include <linux/ratelimit.h>
  23#include <linux/string.h>
  24#include <linux/i2c.h>
  25
  26#include <media/dvbdev.h>
  27#include <media/dvb_demux.h>
  28#include <media/dmxdev.h>
  29#include <media/dvb_net.h>
  30#include <media/dvb_frontend.h>
  31
  32#include "tc90522.h"
  33#include "qm1d1b0004.h"
  34#include "dvb-pll.h"
  35
  36#define DRIVER_NAME "earth-pt1"
  37
  38#define PT1_PAGE_SHIFT 12
  39#define PT1_PAGE_SIZE (1 << PT1_PAGE_SHIFT)
  40#define PT1_NR_UPACKETS 1024
  41#define PT1_NR_BUFS 511
  42
  43struct pt1_buffer_page {
  44        __le32 upackets[PT1_NR_UPACKETS];
  45};
  46
  47struct pt1_table_page {
  48        __le32 next_pfn;
  49        __le32 buf_pfns[PT1_NR_BUFS];
  50};
  51
  52struct pt1_buffer {
  53        struct pt1_buffer_page *page;
  54        dma_addr_t addr;
  55};
  56
  57struct pt1_table {
  58        struct pt1_table_page *page;
  59        dma_addr_t addr;
  60        struct pt1_buffer bufs[PT1_NR_BUFS];
  61};
  62
  63enum pt1_fe_clk {
  64        PT1_FE_CLK_20MHZ,       /* PT1 */
  65        PT1_FE_CLK_25MHZ,       /* PT2 */
  66};
  67
  68#define PT1_NR_ADAPS 4
  69
  70struct pt1_adapter;
  71
  72struct pt1 {
  73        struct pci_dev *pdev;
  74        void __iomem *regs;
  75        struct i2c_adapter i2c_adap;
  76        int i2c_running;
  77        struct pt1_adapter *adaps[PT1_NR_ADAPS];
  78        struct pt1_table *tables;
  79        struct task_struct *kthread;
  80        int table_index;
  81        int buf_index;
  82
  83        struct mutex lock;
  84        int power;
  85        int reset;
  86
  87        enum pt1_fe_clk fe_clk;
  88};
  89
  90struct pt1_adapter {
  91        struct pt1 *pt1;
  92        int index;
  93
  94        u8 *buf;
  95        int upacket_count;
  96        int packet_count;
  97        int st_count;
  98
  99        struct dvb_adapter adap;
 100        struct dvb_demux demux;
 101        int users;
 102        struct dmxdev dmxdev;
 103        struct dvb_frontend *fe;
 104        struct i2c_client *demod_i2c_client;
 105        struct i2c_client *tuner_i2c_client;
 106        int (*orig_set_voltage)(struct dvb_frontend *fe,
 107                                enum fe_sec_voltage voltage);
 108        int (*orig_sleep)(struct dvb_frontend *fe);
 109        int (*orig_init)(struct dvb_frontend *fe);
 110
 111        enum fe_sec_voltage voltage;
 112        int sleep;
 113};
 114
 115union pt1_tuner_config {
 116        struct qm1d1b0004_config qm1d1b0004;
 117        struct dvb_pll_config tda6651;
 118};
 119
 120struct pt1_config {
 121        struct i2c_board_info demod_info;
 122        struct tc90522_config demod_cfg;
 123
 124        struct i2c_board_info tuner_info;
 125        union pt1_tuner_config tuner_cfg;
 126};
 127
 128static const struct pt1_config pt1_configs[PT1_NR_ADAPS] = {
 129        {
 130                .demod_info = {
 131                        I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x1b),
 132                },
 133                .tuner_info = {
 134                        I2C_BOARD_INFO("qm1d1b0004", 0x60),
 135                },
 136        },
 137        {
 138                .demod_info = {
 139                        I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x1a),
 140                },
 141                .tuner_info = {
 142                        I2C_BOARD_INFO("tda665x_earthpt1", 0x61),
 143                },
 144        },
 145        {
 146                .demod_info = {
 147                        I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x19),
 148                },
 149                .tuner_info = {
 150                        I2C_BOARD_INFO("qm1d1b0004", 0x60),
 151                },
 152        },
 153        {
 154                .demod_info = {
 155                        I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x18),
 156                },
 157                .tuner_info = {
 158                        I2C_BOARD_INFO("tda665x_earthpt1", 0x61),
 159                },
 160        },
 161};
 162
 163static const u8 va1j5jf8007s_20mhz_configs[][2] = {
 164        {0x04, 0x02}, {0x0d, 0x55}, {0x11, 0x40}, {0x13, 0x80}, {0x17, 0x01},
 165        {0x1c, 0x0a}, {0x1d, 0xaa}, {0x1e, 0x20}, {0x1f, 0x88}, {0x51, 0xb0},
 166        {0x52, 0x89}, {0x53, 0xb3}, {0x5a, 0x2d}, {0x5b, 0xd3}, {0x85, 0x69},
 167        {0x87, 0x04}, {0x8e, 0x02}, {0xa3, 0xf7}, {0xa5, 0xc0},
 168};
 169
 170static const u8 va1j5jf8007s_25mhz_configs[][2] = {
 171        {0x04, 0x02}, {0x11, 0x40}, {0x13, 0x80}, {0x17, 0x01}, {0x1c, 0x0a},
 172        {0x1d, 0xaa}, {0x1e, 0x20}, {0x1f, 0x88}, {0x51, 0xb0}, {0x52, 0x89},
 173        {0x53, 0xb3}, {0x5a, 0x2d}, {0x5b, 0xd3}, {0x85, 0x69}, {0x87, 0x04},
 174        {0x8e, 0x26}, {0xa3, 0xf7}, {0xa5, 0xc0},
 175};
 176
 177static const u8 va1j5jf8007t_20mhz_configs[][2] = {
 178        {0x03, 0x90}, {0x14, 0x8f}, {0x1c, 0x2a}, {0x1d, 0xa8}, {0x1e, 0xa2},
 179        {0x22, 0x83}, {0x31, 0x0d}, {0x32, 0xe0}, {0x39, 0xd3}, {0x3a, 0x00},
 180        {0x3b, 0x11}, {0x3c, 0x3f},
 181        {0x5c, 0x40}, {0x5f, 0x80}, {0x75, 0x02}, {0x76, 0x4e}, {0x77, 0x03},
 182        {0xef, 0x01}
 183};
 184
 185static const u8 va1j5jf8007t_25mhz_configs[][2] = {
 186        {0x03, 0x90}, {0x1c, 0x2a}, {0x1d, 0xa8}, {0x1e, 0xa2}, {0x22, 0x83},
 187        {0x3a, 0x04}, {0x3b, 0x11}, {0x3c, 0x3f}, {0x5c, 0x40}, {0x5f, 0x80},
 188        {0x75, 0x0a}, {0x76, 0x4c}, {0x77, 0x03}, {0xef, 0x01}
 189};
 190
 191static int config_demod(struct i2c_client *cl, enum pt1_fe_clk clk)
 192{
 193        int ret;
 194        bool is_sat;
 195        const u8 (*cfg_data)[2];
 196        int i, len;
 197
 198        is_sat = !strncmp(cl->name, TC90522_I2C_DEV_SAT,
 199                          strlen(TC90522_I2C_DEV_SAT));
 200        if (is_sat) {
 201                struct i2c_msg msg[2];
 202                u8 wbuf, rbuf;
 203
 204                wbuf = 0x07;
 205                msg[0].addr = cl->addr;
 206                msg[0].flags = 0;
 207                msg[0].len = 1;
 208                msg[0].buf = &wbuf;
 209
 210                msg[1].addr = cl->addr;
 211                msg[1].flags = I2C_M_RD;
 212                msg[1].len = 1;
 213                msg[1].buf = &rbuf;
 214                ret = i2c_transfer(cl->adapter, msg, 2);
 215                if (ret < 0)
 216                        return ret;
 217                if (rbuf != 0x41)
 218                        return -EIO;
 219        }
 220
 221        /* frontend init */
 222        if (clk == PT1_FE_CLK_20MHZ) {
 223                if (is_sat) {
 224                        cfg_data = va1j5jf8007s_20mhz_configs;
 225                        len = ARRAY_SIZE(va1j5jf8007s_20mhz_configs);
 226                } else {
 227                        cfg_data = va1j5jf8007t_20mhz_configs;
 228                        len = ARRAY_SIZE(va1j5jf8007t_20mhz_configs);
 229                }
 230        } else {
 231                if (is_sat) {
 232                        cfg_data = va1j5jf8007s_25mhz_configs;
 233                        len = ARRAY_SIZE(va1j5jf8007s_25mhz_configs);
 234                } else {
 235                        cfg_data = va1j5jf8007t_25mhz_configs;
 236                        len = ARRAY_SIZE(va1j5jf8007t_25mhz_configs);
 237                }
 238        }
 239
 240        for (i = 0; i < len; i++) {
 241                ret = i2c_master_send(cl, cfg_data[i], 2);
 242                if (ret < 0)
 243                        return ret;
 244        }
 245        return 0;
 246}
 247
 248/*
 249 * Init registers for (each pair of) terrestrial/satellite block in demod.
 250 * Note that resetting terr. block also resets its peer sat. block as well.
 251 * This function must be called before configuring any demod block
 252 * (before pt1_wakeup(), fe->ops.init()).
 253 */
 254static int pt1_demod_block_init(struct pt1 *pt1)
 255{
 256        struct i2c_client *cl;
 257        u8 buf[2] = {0x01, 0x80};
 258        int ret;
 259        int i;
 260
 261        /* reset all terr. & sat. pairs first */
 262        for (i = 0; i < PT1_NR_ADAPS; i++) {
 263                cl = pt1->adaps[i]->demod_i2c_client;
 264                if (strncmp(cl->name, TC90522_I2C_DEV_TER,
 265                            strlen(TC90522_I2C_DEV_TER)))
 266                        continue;
 267
 268                ret = i2c_master_send(cl, buf, 2);
 269                if (ret < 0)
 270                        return ret;
 271                usleep_range(30000, 50000);
 272        }
 273
 274        for (i = 0; i < PT1_NR_ADAPS; i++) {
 275                cl = pt1->adaps[i]->demod_i2c_client;
 276                if (strncmp(cl->name, TC90522_I2C_DEV_SAT,
 277                            strlen(TC90522_I2C_DEV_SAT)))
 278                        continue;
 279
 280                ret = i2c_master_send(cl, buf, 2);
 281                if (ret < 0)
 282                        return ret;
 283                usleep_range(30000, 50000);
 284        }
 285        return 0;
 286}
 287
 288static void pt1_write_reg(struct pt1 *pt1, int reg, u32 data)
 289{
 290        writel(data, pt1->regs + reg * 4);
 291}
 292
 293static u32 pt1_read_reg(struct pt1 *pt1, int reg)
 294{
 295        return readl(pt1->regs + reg * 4);
 296}
 297
 298static unsigned int pt1_nr_tables = 8;
 299module_param_named(nr_tables, pt1_nr_tables, uint, 0);
 300
 301static void pt1_increment_table_count(struct pt1 *pt1)
 302{
 303        pt1_write_reg(pt1, 0, 0x00000020);
 304}
 305
 306static void pt1_init_table_count(struct pt1 *pt1)
 307{
 308        pt1_write_reg(pt1, 0, 0x00000010);
 309}
 310
 311static void pt1_register_tables(struct pt1 *pt1, u32 first_pfn)
 312{
 313        pt1_write_reg(pt1, 5, first_pfn);
 314        pt1_write_reg(pt1, 0, 0x0c000040);
 315}
 316
 317static void pt1_unregister_tables(struct pt1 *pt1)
 318{
 319        pt1_write_reg(pt1, 0, 0x08080000);
 320}
 321
 322static int pt1_sync(struct pt1 *pt1)
 323{
 324        int i;
 325        for (i = 0; i < 57; i++) {
 326                if (pt1_read_reg(pt1, 0) & 0x20000000)
 327                        return 0;
 328                pt1_write_reg(pt1, 0, 0x00000008);
 329        }
 330        dev_err(&pt1->pdev->dev, "could not sync\n");
 331        return -EIO;
 332}
 333
 334static u64 pt1_identify(struct pt1 *pt1)
 335{
 336        int i;
 337        u64 id;
 338        id = 0;
 339        for (i = 0; i < 57; i++) {
 340                id |= (u64)(pt1_read_reg(pt1, 0) >> 30 & 1) << i;
 341                pt1_write_reg(pt1, 0, 0x00000008);
 342        }
 343        return id;
 344}
 345
 346static int pt1_unlock(struct pt1 *pt1)
 347{
 348        int i;
 349        pt1_write_reg(pt1, 0, 0x00000008);
 350        for (i = 0; i < 3; i++) {
 351                if (pt1_read_reg(pt1, 0) & 0x80000000)
 352                        return 0;
 353                usleep_range(1000, 2000);
 354        }
 355        dev_err(&pt1->pdev->dev, "could not unlock\n");
 356        return -EIO;
 357}
 358
 359static int pt1_reset_pci(struct pt1 *pt1)
 360{
 361        int i;
 362        pt1_write_reg(pt1, 0, 0x01010000);
 363        pt1_write_reg(pt1, 0, 0x01000000);
 364        for (i = 0; i < 10; i++) {
 365                if (pt1_read_reg(pt1, 0) & 0x00000001)
 366                        return 0;
 367                usleep_range(1000, 2000);
 368        }
 369        dev_err(&pt1->pdev->dev, "could not reset PCI\n");
 370        return -EIO;
 371}
 372
 373static int pt1_reset_ram(struct pt1 *pt1)
 374{
 375        int i;
 376        pt1_write_reg(pt1, 0, 0x02020000);
 377        pt1_write_reg(pt1, 0, 0x02000000);
 378        for (i = 0; i < 10; i++) {
 379                if (pt1_read_reg(pt1, 0) & 0x00000002)
 380                        return 0;
 381                usleep_range(1000, 2000);
 382        }
 383        dev_err(&pt1->pdev->dev, "could not reset RAM\n");
 384        return -EIO;
 385}
 386
 387static int pt1_do_enable_ram(struct pt1 *pt1)
 388{
 389        int i, j;
 390        u32 status;
 391        status = pt1_read_reg(pt1, 0) & 0x00000004;
 392        pt1_write_reg(pt1, 0, 0x00000002);
 393        for (i = 0; i < 10; i++) {
 394                for (j = 0; j < 1024; j++) {
 395                        if ((pt1_read_reg(pt1, 0) & 0x00000004) != status)
 396                                return 0;
 397                }
 398                usleep_range(1000, 2000);
 399        }
 400        dev_err(&pt1->pdev->dev, "could not enable RAM\n");
 401        return -EIO;
 402}
 403
 404static int pt1_enable_ram(struct pt1 *pt1)
 405{
 406        int i, ret;
 407        int phase;
 408        usleep_range(1000, 2000);
 409        phase = pt1->pdev->device == 0x211a ? 128 : 166;
 410        for (i = 0; i < phase; i++) {
 411                ret = pt1_do_enable_ram(pt1);
 412                if (ret < 0)
 413                        return ret;
 414        }
 415        return 0;
 416}
 417
 418static void pt1_disable_ram(struct pt1 *pt1)
 419{
 420        pt1_write_reg(pt1, 0, 0x0b0b0000);
 421}
 422
 423static void pt1_set_stream(struct pt1 *pt1, int index, int enabled)
 424{
 425        pt1_write_reg(pt1, 2, 1 << (index + 8) | enabled << index);
 426}
 427
 428static void pt1_init_streams(struct pt1 *pt1)
 429{
 430        int i;
 431        for (i = 0; i < PT1_NR_ADAPS; i++)
 432                pt1_set_stream(pt1, i, 0);
 433}
 434
 435static int pt1_filter(struct pt1 *pt1, struct pt1_buffer_page *page)
 436{
 437        u32 upacket;
 438        int i;
 439        int index;
 440        struct pt1_adapter *adap;
 441        int offset;
 442        u8 *buf;
 443        int sc;
 444
 445        if (!page->upackets[PT1_NR_UPACKETS - 1])
 446                return 0;
 447
 448        for (i = 0; i < PT1_NR_UPACKETS; i++) {
 449                upacket = le32_to_cpu(page->upackets[i]);
 450                index = (upacket >> 29) - 1;
 451                if (index < 0 || index >=  PT1_NR_ADAPS)
 452                        continue;
 453
 454                adap = pt1->adaps[index];
 455                if (upacket >> 25 & 1)
 456                        adap->upacket_count = 0;
 457                else if (!adap->upacket_count)
 458                        continue;
 459
 460                if (upacket >> 24 & 1)
 461                        printk_ratelimited(KERN_INFO "earth-pt1: device buffer overflowing. table[%d] buf[%d]\n",
 462                                pt1->table_index, pt1->buf_index);
 463                sc = upacket >> 26 & 0x7;
 464                if (adap->st_count != -1 && sc != ((adap->st_count + 1) & 0x7))
 465                        printk_ratelimited(KERN_INFO "earth-pt1: data loss in streamID(adapter)[%d]\n",
 466                                           index);
 467                adap->st_count = sc;
 468
 469                buf = adap->buf;
 470                offset = adap->packet_count * 188 + adap->upacket_count * 3;
 471                buf[offset] = upacket >> 16;
 472                buf[offset + 1] = upacket >> 8;
 473                if (adap->upacket_count != 62)
 474                        buf[offset + 2] = upacket;
 475
 476                if (++adap->upacket_count >= 63) {
 477                        adap->upacket_count = 0;
 478                        if (++adap->packet_count >= 21) {
 479                                dvb_dmx_swfilter_packets(&adap->demux, buf, 21);
 480                                adap->packet_count = 0;
 481                        }
 482                }
 483        }
 484
 485        page->upackets[PT1_NR_UPACKETS - 1] = 0;
 486        return 1;
 487}
 488
 489static int pt1_thread(void *data)
 490{
 491        struct pt1 *pt1;
 492        struct pt1_buffer_page *page;
 493        bool was_frozen;
 494
 495#define PT1_FETCH_DELAY 10
 496#define PT1_FETCH_DELAY_DELTA 2
 497
 498        pt1 = data;
 499        set_freezable();
 500
 501        while (!kthread_freezable_should_stop(&was_frozen)) {
 502                if (was_frozen) {
 503                        int i;
 504
 505                        for (i = 0; i < PT1_NR_ADAPS; i++)
 506                                pt1_set_stream(pt1, i, !!pt1->adaps[i]->users);
 507                }
 508
 509                page = pt1->tables[pt1->table_index].bufs[pt1->buf_index].page;
 510                if (!pt1_filter(pt1, page)) {
 511                        ktime_t delay;
 512
 513                        delay = ktime_set(0, PT1_FETCH_DELAY * NSEC_PER_MSEC);
 514                        set_current_state(TASK_INTERRUPTIBLE);
 515                        schedule_hrtimeout_range(&delay,
 516                                        PT1_FETCH_DELAY_DELTA * NSEC_PER_MSEC,
 517                                        HRTIMER_MODE_REL);
 518                        continue;
 519                }
 520
 521                if (++pt1->buf_index >= PT1_NR_BUFS) {
 522                        pt1_increment_table_count(pt1);
 523                        pt1->buf_index = 0;
 524                        if (++pt1->table_index >= pt1_nr_tables)
 525                                pt1->table_index = 0;
 526                }
 527        }
 528
 529        return 0;
 530}
 531
 532static void pt1_free_page(struct pt1 *pt1, void *page, dma_addr_t addr)
 533{
 534        dma_free_coherent(&pt1->pdev->dev, PT1_PAGE_SIZE, page, addr);
 535}
 536
 537static void *pt1_alloc_page(struct pt1 *pt1, dma_addr_t *addrp, u32 *pfnp)
 538{
 539        void *page;
 540        dma_addr_t addr;
 541
 542        page = dma_alloc_coherent(&pt1->pdev->dev, PT1_PAGE_SIZE, &addr,
 543                                  GFP_KERNEL);
 544        if (page == NULL)
 545                return NULL;
 546
 547        BUG_ON(addr & (PT1_PAGE_SIZE - 1));
 548        BUG_ON(addr >> PT1_PAGE_SHIFT >> 31 >> 1);
 549
 550        *addrp = addr;
 551        *pfnp = addr >> PT1_PAGE_SHIFT;
 552        return page;
 553}
 554
 555static void pt1_cleanup_buffer(struct pt1 *pt1, struct pt1_buffer *buf)
 556{
 557        pt1_free_page(pt1, buf->page, buf->addr);
 558}
 559
 560static int
 561pt1_init_buffer(struct pt1 *pt1, struct pt1_buffer *buf,  u32 *pfnp)
 562{
 563        struct pt1_buffer_page *page;
 564        dma_addr_t addr;
 565
 566        page = pt1_alloc_page(pt1, &addr, pfnp);
 567        if (page == NULL)
 568                return -ENOMEM;
 569
 570        page->upackets[PT1_NR_UPACKETS - 1] = 0;
 571
 572        buf->page = page;
 573        buf->addr = addr;
 574        return 0;
 575}
 576
 577static void pt1_cleanup_table(struct pt1 *pt1, struct pt1_table *table)
 578{
 579        int i;
 580
 581        for (i = 0; i < PT1_NR_BUFS; i++)
 582                pt1_cleanup_buffer(pt1, &table->bufs[i]);
 583
 584        pt1_free_page(pt1, table->page, table->addr);
 585}
 586
 587static int
 588pt1_init_table(struct pt1 *pt1, struct pt1_table *table, u32 *pfnp)
 589{
 590        struct pt1_table_page *page;
 591        dma_addr_t addr;
 592        int i, ret;
 593        u32 buf_pfn;
 594
 595        page = pt1_alloc_page(pt1, &addr, pfnp);
 596        if (page == NULL)
 597                return -ENOMEM;
 598
 599        for (i = 0; i < PT1_NR_BUFS; i++) {
 600                ret = pt1_init_buffer(pt1, &table->bufs[i], &buf_pfn);
 601                if (ret < 0)
 602                        goto err;
 603
 604                page->buf_pfns[i] = cpu_to_le32(buf_pfn);
 605        }
 606
 607        pt1_increment_table_count(pt1);
 608        table->page = page;
 609        table->addr = addr;
 610        return 0;
 611
 612err:
 613        while (i--)
 614                pt1_cleanup_buffer(pt1, &table->bufs[i]);
 615
 616        pt1_free_page(pt1, page, addr);
 617        return ret;
 618}
 619
 620static void pt1_cleanup_tables(struct pt1 *pt1)
 621{
 622        struct pt1_table *tables;
 623        int i;
 624
 625        tables = pt1->tables;
 626        pt1_unregister_tables(pt1);
 627
 628        for (i = 0; i < pt1_nr_tables; i++)
 629                pt1_cleanup_table(pt1, &tables[i]);
 630
 631        vfree(tables);
 632}
 633
 634static int pt1_init_tables(struct pt1 *pt1)
 635{
 636        struct pt1_table *tables;
 637        int i, ret;
 638        u32 first_pfn, pfn;
 639
 640        if (!pt1_nr_tables)
 641                return 0;
 642
 643        tables = vmalloc(array_size(pt1_nr_tables, sizeof(struct pt1_table)));
 644        if (tables == NULL)
 645                return -ENOMEM;
 646
 647        pt1_init_table_count(pt1);
 648
 649        i = 0;
 650        ret = pt1_init_table(pt1, &tables[0], &first_pfn);
 651        if (ret)
 652                goto err;
 653        i++;
 654
 655        while (i < pt1_nr_tables) {
 656                ret = pt1_init_table(pt1, &tables[i], &pfn);
 657                if (ret)
 658                        goto err;
 659                tables[i - 1].page->next_pfn = cpu_to_le32(pfn);
 660                i++;
 661        }
 662
 663        tables[pt1_nr_tables - 1].page->next_pfn = cpu_to_le32(first_pfn);
 664
 665        pt1_register_tables(pt1, first_pfn);
 666        pt1->tables = tables;
 667        return 0;
 668
 669err:
 670        while (i--)
 671                pt1_cleanup_table(pt1, &tables[i]);
 672
 673        vfree(tables);
 674        return ret;
 675}
 676
 677static int pt1_start_polling(struct pt1 *pt1)
 678{
 679        int ret = 0;
 680
 681        mutex_lock(&pt1->lock);
 682        if (!pt1->kthread) {
 683                pt1->kthread = kthread_run(pt1_thread, pt1, "earth-pt1");
 684                if (IS_ERR(pt1->kthread)) {
 685                        ret = PTR_ERR(pt1->kthread);
 686                        pt1->kthread = NULL;
 687                }
 688        }
 689        mutex_unlock(&pt1->lock);
 690        return ret;
 691}
 692
 693static int pt1_start_feed(struct dvb_demux_feed *feed)
 694{
 695        struct pt1_adapter *adap;
 696        adap = container_of(feed->demux, struct pt1_adapter, demux);
 697        if (!adap->users++) {
 698                int ret;
 699
 700                ret = pt1_start_polling(adap->pt1);
 701                if (ret)
 702                        return ret;
 703                pt1_set_stream(adap->pt1, adap->index, 1);
 704        }
 705        return 0;
 706}
 707
 708static void pt1_stop_polling(struct pt1 *pt1)
 709{
 710        int i, count;
 711
 712        mutex_lock(&pt1->lock);
 713        for (i = 0, count = 0; i < PT1_NR_ADAPS; i++)
 714                count += pt1->adaps[i]->users;
 715
 716        if (count == 0 && pt1->kthread) {
 717                kthread_stop(pt1->kthread);
 718                pt1->kthread = NULL;
 719        }
 720        mutex_unlock(&pt1->lock);
 721}
 722
 723static int pt1_stop_feed(struct dvb_demux_feed *feed)
 724{
 725        struct pt1_adapter *adap;
 726        adap = container_of(feed->demux, struct pt1_adapter, demux);
 727        if (!--adap->users) {
 728                pt1_set_stream(adap->pt1, adap->index, 0);
 729                pt1_stop_polling(adap->pt1);
 730        }
 731        return 0;
 732}
 733
 734static void
 735pt1_update_power(struct pt1 *pt1)
 736{
 737        int bits;
 738        int i;
 739        struct pt1_adapter *adap;
 740        static const int sleep_bits[] = {
 741                1 << 4,
 742                1 << 6 | 1 << 7,
 743                1 << 5,
 744                1 << 6 | 1 << 8,
 745        };
 746
 747        bits = pt1->power | !pt1->reset << 3;
 748        mutex_lock(&pt1->lock);
 749        for (i = 0; i < PT1_NR_ADAPS; i++) {
 750                adap = pt1->adaps[i];
 751                switch (adap->voltage) {
 752                case SEC_VOLTAGE_13: /* actually 11V */
 753                        bits |= 1 << 2;
 754                        break;
 755                case SEC_VOLTAGE_18: /* actually 15V */
 756                        bits |= 1 << 1 | 1 << 2;
 757                        break;
 758                default:
 759                        break;
 760                }
 761
 762                /* XXX: The bits should be changed depending on adap->sleep. */
 763                bits |= sleep_bits[i];
 764        }
 765        pt1_write_reg(pt1, 1, bits);
 766        mutex_unlock(&pt1->lock);
 767}
 768
 769static int pt1_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
 770{
 771        struct pt1_adapter *adap;
 772
 773        adap = container_of(fe->dvb, struct pt1_adapter, adap);
 774        adap->voltage = voltage;
 775        pt1_update_power(adap->pt1);
 776
 777        if (adap->orig_set_voltage)
 778                return adap->orig_set_voltage(fe, voltage);
 779        else
 780                return 0;
 781}
 782
 783static int pt1_sleep(struct dvb_frontend *fe)
 784{
 785        struct pt1_adapter *adap;
 786        int ret;
 787
 788        adap = container_of(fe->dvb, struct pt1_adapter, adap);
 789
 790        ret = 0;
 791        if (adap->orig_sleep)
 792                ret = adap->orig_sleep(fe);
 793
 794        adap->sleep = 1;
 795        pt1_update_power(adap->pt1);
 796        return ret;
 797}
 798
 799static int pt1_wakeup(struct dvb_frontend *fe)
 800{
 801        struct pt1_adapter *adap;
 802        int ret;
 803
 804        adap = container_of(fe->dvb, struct pt1_adapter, adap);
 805        adap->sleep = 0;
 806        pt1_update_power(adap->pt1);
 807        usleep_range(1000, 2000);
 808
 809        ret = config_demod(adap->demod_i2c_client, adap->pt1->fe_clk);
 810        if (ret == 0 && adap->orig_init)
 811                ret = adap->orig_init(fe);
 812        return ret;
 813}
 814
 815static void pt1_free_adapter(struct pt1_adapter *adap)
 816{
 817        adap->demux.dmx.close(&adap->demux.dmx);
 818        dvb_dmxdev_release(&adap->dmxdev);
 819        dvb_dmx_release(&adap->demux);
 820        dvb_unregister_adapter(&adap->adap);
 821        free_page((unsigned long)adap->buf);
 822        kfree(adap);
 823}
 824
 825DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 826
 827static struct pt1_adapter *
 828pt1_alloc_adapter(struct pt1 *pt1)
 829{
 830        struct pt1_adapter *adap;
 831        void *buf;
 832        struct dvb_adapter *dvb_adap;
 833        struct dvb_demux *demux;
 834        struct dmxdev *dmxdev;
 835        int ret;
 836
 837        adap = kzalloc(sizeof(struct pt1_adapter), GFP_KERNEL);
 838        if (!adap) {
 839                ret = -ENOMEM;
 840                goto err;
 841        }
 842
 843        adap->pt1 = pt1;
 844
 845        adap->voltage = SEC_VOLTAGE_OFF;
 846        adap->sleep = 1;
 847
 848        buf = (u8 *)__get_free_page(GFP_KERNEL);
 849        if (!buf) {
 850                ret = -ENOMEM;
 851                goto err_kfree;
 852        }
 853
 854        adap->buf = buf;
 855        adap->upacket_count = 0;
 856        adap->packet_count = 0;
 857        adap->st_count = -1;
 858
 859        dvb_adap = &adap->adap;
 860        dvb_adap->priv = adap;
 861        ret = dvb_register_adapter(dvb_adap, DRIVER_NAME, THIS_MODULE,
 862                                   &pt1->pdev->dev, adapter_nr);
 863        if (ret < 0)
 864                goto err_free_page;
 865
 866        demux = &adap->demux;
 867        demux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
 868        demux->priv = adap;
 869        demux->feednum = 256;
 870        demux->filternum = 256;
 871        demux->start_feed = pt1_start_feed;
 872        demux->stop_feed = pt1_stop_feed;
 873        demux->write_to_decoder = NULL;
 874        ret = dvb_dmx_init(demux);
 875        if (ret < 0)
 876                goto err_unregister_adapter;
 877
 878        dmxdev = &adap->dmxdev;
 879        dmxdev->filternum = 256;
 880        dmxdev->demux = &demux->dmx;
 881        dmxdev->capabilities = 0;
 882        ret = dvb_dmxdev_init(dmxdev, dvb_adap);
 883        if (ret < 0)
 884                goto err_dmx_release;
 885
 886        return adap;
 887
 888err_dmx_release:
 889        dvb_dmx_release(demux);
 890err_unregister_adapter:
 891        dvb_unregister_adapter(dvb_adap);
 892err_free_page:
 893        free_page((unsigned long)buf);
 894err_kfree:
 895        kfree(adap);
 896err:
 897        return ERR_PTR(ret);
 898}
 899
 900static void pt1_cleanup_adapters(struct pt1 *pt1)
 901{
 902        int i;
 903        for (i = 0; i < PT1_NR_ADAPS; i++)
 904                pt1_free_adapter(pt1->adaps[i]);
 905}
 906
 907static int pt1_init_adapters(struct pt1 *pt1)
 908{
 909        int i;
 910        struct pt1_adapter *adap;
 911        int ret;
 912
 913        for (i = 0; i < PT1_NR_ADAPS; i++) {
 914                adap = pt1_alloc_adapter(pt1);
 915                if (IS_ERR(adap)) {
 916                        ret = PTR_ERR(adap);
 917                        goto err;
 918                }
 919
 920                adap->index = i;
 921                pt1->adaps[i] = adap;
 922        }
 923        return 0;
 924
 925err:
 926        while (i--)
 927                pt1_free_adapter(pt1->adaps[i]);
 928
 929        return ret;
 930}
 931
 932static void pt1_cleanup_frontend(struct pt1_adapter *adap)
 933{
 934        dvb_unregister_frontend(adap->fe);
 935        dvb_module_release(adap->tuner_i2c_client);
 936        dvb_module_release(adap->demod_i2c_client);
 937}
 938
 939static int pt1_init_frontend(struct pt1_adapter *adap, struct dvb_frontend *fe)
 940{
 941        int ret;
 942
 943        adap->orig_set_voltage = fe->ops.set_voltage;
 944        adap->orig_sleep = fe->ops.sleep;
 945        adap->orig_init = fe->ops.init;
 946        fe->ops.set_voltage = pt1_set_voltage;
 947        fe->ops.sleep = pt1_sleep;
 948        fe->ops.init = pt1_wakeup;
 949
 950        ret = dvb_register_frontend(&adap->adap, fe);
 951        if (ret < 0)
 952                return ret;
 953
 954        adap->fe = fe;
 955        return 0;
 956}
 957
 958static void pt1_cleanup_frontends(struct pt1 *pt1)
 959{
 960        int i;
 961        for (i = 0; i < PT1_NR_ADAPS; i++)
 962                pt1_cleanup_frontend(pt1->adaps[i]);
 963}
 964
 965static int pt1_init_frontends(struct pt1 *pt1)
 966{
 967        int i;
 968        int ret;
 969
 970        for (i = 0; i < ARRAY_SIZE(pt1_configs); i++) {
 971                const struct i2c_board_info *info;
 972                struct tc90522_config dcfg;
 973                struct i2c_client *cl;
 974
 975                info = &pt1_configs[i].demod_info;
 976                dcfg = pt1_configs[i].demod_cfg;
 977                dcfg.tuner_i2c = NULL;
 978
 979                ret = -ENODEV;
 980                cl = dvb_module_probe("tc90522", info->type, &pt1->i2c_adap,
 981                                      info->addr, &dcfg);
 982                if (!cl)
 983                        goto fe_unregister;
 984                pt1->adaps[i]->demod_i2c_client = cl;
 985
 986                if (!strncmp(cl->name, TC90522_I2C_DEV_SAT,
 987                             strlen(TC90522_I2C_DEV_SAT))) {
 988                        struct qm1d1b0004_config tcfg;
 989
 990                        info = &pt1_configs[i].tuner_info;
 991                        tcfg = pt1_configs[i].tuner_cfg.qm1d1b0004;
 992                        tcfg.fe = dcfg.fe;
 993                        cl = dvb_module_probe("qm1d1b0004",
 994                                              info->type, dcfg.tuner_i2c,
 995                                              info->addr, &tcfg);
 996                } else {
 997                        struct dvb_pll_config tcfg;
 998
 999                        info = &pt1_configs[i].tuner_info;
1000                        tcfg = pt1_configs[i].tuner_cfg.tda6651;
1001                        tcfg.fe = dcfg.fe;
1002                        cl = dvb_module_probe("dvb_pll",
1003                                              info->type, dcfg.tuner_i2c,
1004                                              info->addr, &tcfg);
1005                }
1006                if (!cl)
1007                        goto demod_release;
1008                pt1->adaps[i]->tuner_i2c_client = cl;
1009
1010                ret = pt1_init_frontend(pt1->adaps[i], dcfg.fe);
1011                if (ret < 0)
1012                        goto tuner_release;
1013        }
1014
1015        ret = pt1_demod_block_init(pt1);
1016        if (ret < 0)
1017                goto fe_unregister;
1018
1019        return 0;
1020
1021tuner_release:
1022        dvb_module_release(pt1->adaps[i]->tuner_i2c_client);
1023demod_release:
1024        dvb_module_release(pt1->adaps[i]->demod_i2c_client);
1025fe_unregister:
1026        dev_warn(&pt1->pdev->dev, "failed to init FE(%d).\n", i);
1027        i--;
1028        for (; i >= 0; i--) {
1029                dvb_unregister_frontend(pt1->adaps[i]->fe);
1030                dvb_module_release(pt1->adaps[i]->tuner_i2c_client);
1031                dvb_module_release(pt1->adaps[i]->demod_i2c_client);
1032        }
1033        return ret;
1034}
1035
1036static void pt1_i2c_emit(struct pt1 *pt1, int addr, int busy, int read_enable,
1037                         int clock, int data, int next_addr)
1038{
1039        pt1_write_reg(pt1, 4, addr << 18 | busy << 13 | read_enable << 12 |
1040                      !clock << 11 | !data << 10 | next_addr);
1041}
1042
1043static void pt1_i2c_write_bit(struct pt1 *pt1, int addr, int *addrp, int data)
1044{
1045        pt1_i2c_emit(pt1, addr,     1, 0, 0, data, addr + 1);
1046        pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, data, addr + 2);
1047        pt1_i2c_emit(pt1, addr + 2, 1, 0, 0, data, addr + 3);
1048        *addrp = addr + 3;
1049}
1050
1051static void pt1_i2c_read_bit(struct pt1 *pt1, int addr, int *addrp)
1052{
1053        pt1_i2c_emit(pt1, addr,     1, 0, 0, 1, addr + 1);
1054        pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 1, addr + 2);
1055        pt1_i2c_emit(pt1, addr + 2, 1, 1, 1, 1, addr + 3);
1056        pt1_i2c_emit(pt1, addr + 3, 1, 0, 0, 1, addr + 4);
1057        *addrp = addr + 4;
1058}
1059
1060static void pt1_i2c_write_byte(struct pt1 *pt1, int addr, int *addrp, int data)
1061{
1062        int i;
1063        for (i = 0; i < 8; i++)
1064                pt1_i2c_write_bit(pt1, addr, &addr, data >> (7 - i) & 1);
1065        pt1_i2c_write_bit(pt1, addr, &addr, 1);
1066        *addrp = addr;
1067}
1068
1069static void pt1_i2c_read_byte(struct pt1 *pt1, int addr, int *addrp, int last)
1070{
1071        int i;
1072        for (i = 0; i < 8; i++)
1073                pt1_i2c_read_bit(pt1, addr, &addr);
1074        pt1_i2c_write_bit(pt1, addr, &addr, last);
1075        *addrp = addr;
1076}
1077
1078static void pt1_i2c_prepare(struct pt1 *pt1, int addr, int *addrp)
1079{
1080        pt1_i2c_emit(pt1, addr,     1, 0, 1, 1, addr + 1);
1081        pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2);
1082        pt1_i2c_emit(pt1, addr + 2, 1, 0, 0, 0, addr + 3);
1083        *addrp = addr + 3;
1084}
1085
1086static void
1087pt1_i2c_write_msg(struct pt1 *pt1, int addr, int *addrp, struct i2c_msg *msg)
1088{
1089        int i;
1090        pt1_i2c_prepare(pt1, addr, &addr);
1091        pt1_i2c_write_byte(pt1, addr, &addr, msg->addr << 1);
1092        for (i = 0; i < msg->len; i++)
1093                pt1_i2c_write_byte(pt1, addr, &addr, msg->buf[i]);
1094        *addrp = addr;
1095}
1096
1097static void
1098pt1_i2c_read_msg(struct pt1 *pt1, int addr, int *addrp, struct i2c_msg *msg)
1099{
1100        int i;
1101        pt1_i2c_prepare(pt1, addr, &addr);
1102        pt1_i2c_write_byte(pt1, addr, &addr, msg->addr << 1 | 1);
1103        for (i = 0; i < msg->len; i++)
1104                pt1_i2c_read_byte(pt1, addr, &addr, i == msg->len - 1);
1105        *addrp = addr;
1106}
1107
1108static int pt1_i2c_end(struct pt1 *pt1, int addr)
1109{
1110        pt1_i2c_emit(pt1, addr,     1, 0, 0, 0, addr + 1);
1111        pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2);
1112        pt1_i2c_emit(pt1, addr + 2, 1, 0, 1, 1, 0);
1113
1114        pt1_write_reg(pt1, 0, 0x00000004);
1115        do {
1116                if (signal_pending(current))
1117                        return -EINTR;
1118                usleep_range(1000, 2000);
1119        } while (pt1_read_reg(pt1, 0) & 0x00000080);
1120        return 0;
1121}
1122
1123static void pt1_i2c_begin(struct pt1 *pt1, int *addrp)
1124{
1125        int addr;
1126        addr = 0;
1127
1128        pt1_i2c_emit(pt1, addr,     0, 0, 1, 1, addr /* itself */);
1129        addr = addr + 1;
1130
1131        if (!pt1->i2c_running) {
1132                pt1_i2c_emit(pt1, addr,     1, 0, 1, 1, addr + 1);
1133                pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2);
1134                addr = addr + 2;
1135                pt1->i2c_running = 1;
1136        }
1137        *addrp = addr;
1138}
1139
1140static int pt1_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
1141{
1142        struct pt1 *pt1;
1143        int i;
1144        struct i2c_msg *msg, *next_msg;
1145        int addr, ret;
1146        u16 len;
1147        u32 word;
1148
1149        pt1 = i2c_get_adapdata(adap);
1150
1151        for (i = 0; i < num; i++) {
1152                msg = &msgs[i];
1153                if (msg->flags & I2C_M_RD)
1154                        return -ENOTSUPP;
1155
1156                if (i + 1 < num)
1157                        next_msg = &msgs[i + 1];
1158                else
1159                        next_msg = NULL;
1160
1161                if (next_msg && next_msg->flags & I2C_M_RD) {
1162                        i++;
1163
1164                        len = next_msg->len;
1165                        if (len > 4)
1166                                return -ENOTSUPP;
1167
1168                        pt1_i2c_begin(pt1, &addr);
1169                        pt1_i2c_write_msg(pt1, addr, &addr, msg);
1170                        pt1_i2c_read_msg(pt1, addr, &addr, next_msg);
1171                        ret = pt1_i2c_end(pt1, addr);
1172                        if (ret < 0)
1173                                return ret;
1174
1175                        word = pt1_read_reg(pt1, 2);
1176                        while (len--) {
1177                                next_msg->buf[len] = word;
1178                                word >>= 8;
1179                        }
1180                } else {
1181                        pt1_i2c_begin(pt1, &addr);
1182                        pt1_i2c_write_msg(pt1, addr, &addr, msg);
1183                        ret = pt1_i2c_end(pt1, addr);
1184                        if (ret < 0)
1185                                return ret;
1186                }
1187        }
1188
1189        return num;
1190}
1191
1192static u32 pt1_i2c_func(struct i2c_adapter *adap)
1193{
1194        return I2C_FUNC_I2C;
1195}
1196
1197static const struct i2c_algorithm pt1_i2c_algo = {
1198        .master_xfer = pt1_i2c_xfer,
1199        .functionality = pt1_i2c_func,
1200};
1201
1202static void pt1_i2c_wait(struct pt1 *pt1)
1203{
1204        int i;
1205        for (i = 0; i < 128; i++)
1206                pt1_i2c_emit(pt1, 0, 0, 0, 1, 1, 0);
1207}
1208
1209static void pt1_i2c_init(struct pt1 *pt1)
1210{
1211        int i;
1212        for (i = 0; i < 1024; i++)
1213                pt1_i2c_emit(pt1, i, 0, 0, 1, 1, 0);
1214}
1215
1216#ifdef CONFIG_PM_SLEEP
1217
1218static int pt1_suspend(struct device *dev)
1219{
1220        struct pt1 *pt1 = dev_get_drvdata(dev);
1221
1222        pt1_init_streams(pt1);
1223        pt1_disable_ram(pt1);
1224        pt1->power = 0;
1225        pt1->reset = 1;
1226        pt1_update_power(pt1);
1227        return 0;
1228}
1229
1230static int pt1_resume(struct device *dev)
1231{
1232        struct pt1 *pt1 = dev_get_drvdata(dev);
1233        int ret;
1234        int i;
1235
1236        pt1->power = 0;
1237        pt1->reset = 1;
1238        pt1_update_power(pt1);
1239
1240        pt1_i2c_init(pt1);
1241        pt1_i2c_wait(pt1);
1242
1243        ret = pt1_sync(pt1);
1244        if (ret < 0)
1245                goto resume_err;
1246
1247        pt1_identify(pt1);
1248
1249        ret = pt1_unlock(pt1);
1250        if (ret < 0)
1251                goto resume_err;
1252
1253        ret = pt1_reset_pci(pt1);
1254        if (ret < 0)
1255                goto resume_err;
1256
1257        ret = pt1_reset_ram(pt1);
1258        if (ret < 0)
1259                goto resume_err;
1260
1261        ret = pt1_enable_ram(pt1);
1262        if (ret < 0)
1263                goto resume_err;
1264
1265        pt1_init_streams(pt1);
1266
1267        pt1->power = 1;
1268        pt1_update_power(pt1);
1269        msleep(20);
1270
1271        pt1->reset = 0;
1272        pt1_update_power(pt1);
1273        usleep_range(1000, 2000);
1274
1275        ret = pt1_demod_block_init(pt1);
1276        if (ret < 0)
1277                goto resume_err;
1278
1279        for (i = 0; i < PT1_NR_ADAPS; i++)
1280                dvb_frontend_reinitialise(pt1->adaps[i]->fe);
1281
1282        pt1_init_table_count(pt1);
1283        for (i = 0; i < pt1_nr_tables; i++) {
1284                int j;
1285
1286                for (j = 0; j < PT1_NR_BUFS; j++)
1287                        pt1->tables[i].bufs[j].page->upackets[PT1_NR_UPACKETS-1]
1288                                = 0;
1289                pt1_increment_table_count(pt1);
1290        }
1291        pt1_register_tables(pt1, pt1->tables[0].addr >> PT1_PAGE_SHIFT);
1292
1293        pt1->table_index = 0;
1294        pt1->buf_index = 0;
1295        for (i = 0; i < PT1_NR_ADAPS; i++) {
1296                pt1->adaps[i]->upacket_count = 0;
1297                pt1->adaps[i]->packet_count = 0;
1298                pt1->adaps[i]->st_count = -1;
1299        }
1300
1301        return 0;
1302
1303resume_err:
1304        dev_info(&pt1->pdev->dev, "failed to resume PT1/PT2.");
1305        return 0;       /* resume anyway */
1306}
1307
1308#endif /* CONFIG_PM_SLEEP */
1309
1310static void pt1_remove(struct pci_dev *pdev)
1311{
1312        struct pt1 *pt1;
1313        void __iomem *regs;
1314
1315        pt1 = pci_get_drvdata(pdev);
1316        regs = pt1->regs;
1317
1318        if (pt1->kthread)
1319                kthread_stop(pt1->kthread);
1320        pt1_cleanup_tables(pt1);
1321        pt1_cleanup_frontends(pt1);
1322        pt1_disable_ram(pt1);
1323        pt1->power = 0;
1324        pt1->reset = 1;
1325        pt1_update_power(pt1);
1326        pt1_cleanup_adapters(pt1);
1327        i2c_del_adapter(&pt1->i2c_adap);
1328        kfree(pt1);
1329        pci_iounmap(pdev, regs);
1330        pci_release_regions(pdev);
1331        pci_disable_device(pdev);
1332}
1333
1334static int pt1_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1335{
1336        int ret;
1337        void __iomem *regs;
1338        struct pt1 *pt1;
1339        struct i2c_adapter *i2c_adap;
1340
1341        ret = pci_enable_device(pdev);
1342        if (ret < 0)
1343                goto err;
1344
1345        ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1346        if (ret < 0)
1347                goto err_pci_disable_device;
1348
1349        pci_set_master(pdev);
1350
1351        ret = pci_request_regions(pdev, DRIVER_NAME);
1352        if (ret < 0)
1353                goto err_pci_disable_device;
1354
1355        regs = pci_iomap(pdev, 0, 0);
1356        if (!regs) {
1357                ret = -EIO;
1358                goto err_pci_release_regions;
1359        }
1360
1361        pt1 = kzalloc(sizeof(struct pt1), GFP_KERNEL);
1362        if (!pt1) {
1363                ret = -ENOMEM;
1364                goto err_pci_iounmap;
1365        }
1366
1367        mutex_init(&pt1->lock);
1368        pt1->pdev = pdev;
1369        pt1->regs = regs;
1370        pt1->fe_clk = (pdev->device == 0x211a) ?
1371                                PT1_FE_CLK_20MHZ : PT1_FE_CLK_25MHZ;
1372        pci_set_drvdata(pdev, pt1);
1373
1374        ret = pt1_init_adapters(pt1);
1375        if (ret < 0)
1376                goto err_kfree;
1377
1378        mutex_init(&pt1->lock);
1379
1380        pt1->power = 0;
1381        pt1->reset = 1;
1382        pt1_update_power(pt1);
1383
1384        i2c_adap = &pt1->i2c_adap;
1385        i2c_adap->algo = &pt1_i2c_algo;
1386        i2c_adap->algo_data = NULL;
1387        i2c_adap->dev.parent = &pdev->dev;
1388        strscpy(i2c_adap->name, DRIVER_NAME, sizeof(i2c_adap->name));
1389        i2c_set_adapdata(i2c_adap, pt1);
1390        ret = i2c_add_adapter(i2c_adap);
1391        if (ret < 0)
1392                goto err_pt1_cleanup_adapters;
1393
1394        pt1_i2c_init(pt1);
1395        pt1_i2c_wait(pt1);
1396
1397        ret = pt1_sync(pt1);
1398        if (ret < 0)
1399                goto err_i2c_del_adapter;
1400
1401        pt1_identify(pt1);
1402
1403        ret = pt1_unlock(pt1);
1404        if (ret < 0)
1405                goto err_i2c_del_adapter;
1406
1407        ret = pt1_reset_pci(pt1);
1408        if (ret < 0)
1409                goto err_i2c_del_adapter;
1410
1411        ret = pt1_reset_ram(pt1);
1412        if (ret < 0)
1413                goto err_i2c_del_adapter;
1414
1415        ret = pt1_enable_ram(pt1);
1416        if (ret < 0)
1417                goto err_i2c_del_adapter;
1418
1419        pt1_init_streams(pt1);
1420
1421        pt1->power = 1;
1422        pt1_update_power(pt1);
1423        msleep(20);
1424
1425        pt1->reset = 0;
1426        pt1_update_power(pt1);
1427        usleep_range(1000, 2000);
1428
1429        ret = pt1_init_frontends(pt1);
1430        if (ret < 0)
1431                goto err_pt1_disable_ram;
1432
1433        ret = pt1_init_tables(pt1);
1434        if (ret < 0)
1435                goto err_pt1_cleanup_frontends;
1436
1437        return 0;
1438
1439err_pt1_cleanup_frontends:
1440        pt1_cleanup_frontends(pt1);
1441err_pt1_disable_ram:
1442        pt1_disable_ram(pt1);
1443        pt1->power = 0;
1444        pt1->reset = 1;
1445        pt1_update_power(pt1);
1446err_i2c_del_adapter:
1447        i2c_del_adapter(i2c_adap);
1448err_pt1_cleanup_adapters:
1449        pt1_cleanup_adapters(pt1);
1450err_kfree:
1451        kfree(pt1);
1452err_pci_iounmap:
1453        pci_iounmap(pdev, regs);
1454err_pci_release_regions:
1455        pci_release_regions(pdev);
1456err_pci_disable_device:
1457        pci_disable_device(pdev);
1458err:
1459        return ret;
1460
1461}
1462
1463static const struct pci_device_id pt1_id_table[] = {
1464        { PCI_DEVICE(0x10ee, 0x211a) },
1465        { PCI_DEVICE(0x10ee, 0x222a) },
1466        { },
1467};
1468MODULE_DEVICE_TABLE(pci, pt1_id_table);
1469
1470static SIMPLE_DEV_PM_OPS(pt1_pm_ops, pt1_suspend, pt1_resume);
1471
1472static struct pci_driver pt1_driver = {
1473        .name           = DRIVER_NAME,
1474        .probe          = pt1_probe,
1475        .remove         = pt1_remove,
1476        .id_table       = pt1_id_table,
1477        .driver.pm      = &pt1_pm_ops,
1478};
1479
1480module_pci_driver(pt1_driver);
1481
1482MODULE_AUTHOR("Takahito HIRANO <hiranotaka@zng.info>");
1483MODULE_DESCRIPTION("Earthsoft PT1/PT2 Driver");
1484MODULE_LICENSE("GPL");
1485