linux/drivers/media/dvb-frontends/dib9000.c
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   1/*
   2 * Linux-DVB Driver for DiBcom's DiB9000 and demodulator-family.
   3 *
   4 * Copyright (C) 2005-10 DiBcom (http://www.dibcom.fr/)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 *      modify it under the terms of the GNU General Public License as
   8 *      published by the Free Software Foundation, version 2.
   9 */
  10
  11#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  12
  13#include <linux/kernel.h>
  14#include <linux/i2c.h>
  15#include <linux/mutex.h>
  16
  17#include <media/dvb_math.h>
  18#include <media/dvb_frontend.h>
  19
  20#include "dib9000.h"
  21#include "dibx000_common.h"
  22
  23static int debug;
  24module_param(debug, int, 0644);
  25MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
  26
  27#define dprintk(fmt, arg...) do {                                       \
  28        if (debug)                                                      \
  29                printk(KERN_DEBUG pr_fmt("%s: " fmt),                   \
  30                       __func__, ##arg);                                \
  31} while (0)
  32
  33#define MAX_NUMBER_OF_FRONTENDS 6
  34
  35struct i2c_device {
  36        struct i2c_adapter *i2c_adap;
  37        u8 i2c_addr;
  38        u8 *i2c_read_buffer;
  39        u8 *i2c_write_buffer;
  40};
  41
  42struct dib9000_pid_ctrl {
  43#define DIB9000_PID_FILTER_CTRL 0
  44#define DIB9000_PID_FILTER      1
  45        u8 cmd;
  46        u8 id;
  47        u16 pid;
  48        u8 onoff;
  49};
  50
  51struct dib9000_state {
  52        struct i2c_device i2c;
  53
  54        struct dibx000_i2c_master i2c_master;
  55        struct i2c_adapter tuner_adap;
  56        struct i2c_adapter component_bus;
  57
  58        u16 revision;
  59        u8 reg_offs;
  60
  61        enum frontend_tune_state tune_state;
  62        u32 status;
  63        struct dvb_frontend_parametersContext channel_status;
  64
  65        u8 fe_id;
  66
  67#define DIB9000_GPIO_DEFAULT_DIRECTIONS 0xffff
  68        u16 gpio_dir;
  69#define DIB9000_GPIO_DEFAULT_VALUES     0x0000
  70        u16 gpio_val;
  71#define DIB9000_GPIO_DEFAULT_PWM_POS    0xffff
  72        u16 gpio_pwm_pos;
  73
  74        union {                 /* common for all chips */
  75                struct {
  76                        u8 mobile_mode:1;
  77                } host;
  78
  79                struct {
  80                        struct dib9000_fe_memory_map {
  81                                u16 addr;
  82                                u16 size;
  83                        } fe_mm[18];
  84                        u8 memcmd;
  85
  86                        struct mutex mbx_if_lock;       /* to protect read/write operations */
  87                        struct mutex mbx_lock;  /* to protect the whole mailbox handling */
  88
  89                        struct mutex mem_lock;  /* to protect the memory accesses */
  90                        struct mutex mem_mbx_lock;      /* to protect the memory-based mailbox */
  91
  92#define MBX_MAX_WORDS (256 - 200 - 2)
  93#define DIB9000_MSG_CACHE_SIZE 2
  94                        u16 message_cache[DIB9000_MSG_CACHE_SIZE][MBX_MAX_WORDS];
  95                        u8 fw_is_running;
  96                } risc;
  97        } platform;
  98
  99        union {                 /* common for all platforms */
 100                struct {
 101                        struct dib9000_config cfg;
 102                } d9;
 103        } chip;
 104
 105        struct dvb_frontend *fe[MAX_NUMBER_OF_FRONTENDS];
 106        u16 component_bus_speed;
 107
 108        /* for the I2C transfer */
 109        struct i2c_msg msg[2];
 110        u8 i2c_write_buffer[255];
 111        u8 i2c_read_buffer[255];
 112        struct mutex demod_lock;
 113        u8 get_frontend_internal;
 114        struct dib9000_pid_ctrl pid_ctrl[10];
 115        s8 pid_ctrl_index; /* -1: empty list; -2: do not use the list */
 116};
 117
 118static const u32 fe_info[44] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 119        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 120        0, 0, 0, 0, 0, 0, 0, 0
 121};
 122
 123enum dib9000_power_mode {
 124        DIB9000_POWER_ALL = 0,
 125
 126        DIB9000_POWER_NO,
 127        DIB9000_POWER_INTERF_ANALOG_AGC,
 128        DIB9000_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD,
 129        DIB9000_POWER_COR4_CRY_ESRAM_MOUT_NUD,
 130        DIB9000_POWER_INTERFACE_ONLY,
 131};
 132
 133enum dib9000_out_messages {
 134        OUT_MSG_HBM_ACK,
 135        OUT_MSG_HOST_BUF_FAIL,
 136        OUT_MSG_REQ_VERSION,
 137        OUT_MSG_BRIDGE_I2C_W,
 138        OUT_MSG_BRIDGE_I2C_R,
 139        OUT_MSG_BRIDGE_APB_W,
 140        OUT_MSG_BRIDGE_APB_R,
 141        OUT_MSG_SCAN_CHANNEL,
 142        OUT_MSG_MONIT_DEMOD,
 143        OUT_MSG_CONF_GPIO,
 144        OUT_MSG_DEBUG_HELP,
 145        OUT_MSG_SUBBAND_SEL,
 146        OUT_MSG_ENABLE_TIME_SLICE,
 147        OUT_MSG_FE_FW_DL,
 148        OUT_MSG_FE_CHANNEL_SEARCH,
 149        OUT_MSG_FE_CHANNEL_TUNE,
 150        OUT_MSG_FE_SLEEP,
 151        OUT_MSG_FE_SYNC,
 152        OUT_MSG_CTL_MONIT,
 153
 154        OUT_MSG_CONF_SVC,
 155        OUT_MSG_SET_HBM,
 156        OUT_MSG_INIT_DEMOD,
 157        OUT_MSG_ENABLE_DIVERSITY,
 158        OUT_MSG_SET_OUTPUT_MODE,
 159        OUT_MSG_SET_PRIORITARY_CHANNEL,
 160        OUT_MSG_ACK_FRG,
 161        OUT_MSG_INIT_PMU,
 162};
 163
 164enum dib9000_in_messages {
 165        IN_MSG_DATA,
 166        IN_MSG_FRAME_INFO,
 167        IN_MSG_CTL_MONIT,
 168        IN_MSG_ACK_FREE_ITEM,
 169        IN_MSG_DEBUG_BUF,
 170        IN_MSG_MPE_MONITOR,
 171        IN_MSG_RAWTS_MONITOR,
 172        IN_MSG_END_BRIDGE_I2C_RW,
 173        IN_MSG_END_BRIDGE_APB_RW,
 174        IN_MSG_VERSION,
 175        IN_MSG_END_OF_SCAN,
 176        IN_MSG_MONIT_DEMOD,
 177        IN_MSG_ERROR,
 178        IN_MSG_FE_FW_DL_DONE,
 179        IN_MSG_EVENT,
 180        IN_MSG_ACK_CHANGE_SVC,
 181        IN_MSG_HBM_PROF,
 182};
 183
 184/* memory_access requests */
 185#define FE_MM_W_CHANNEL                   0
 186#define FE_MM_W_FE_INFO                   1
 187#define FE_MM_RW_SYNC                     2
 188
 189#define FE_SYNC_CHANNEL          1
 190#define FE_SYNC_W_GENERIC_MONIT  2
 191#define FE_SYNC_COMPONENT_ACCESS 3
 192
 193#define FE_MM_R_CHANNEL_SEARCH_STATE      3
 194#define FE_MM_R_CHANNEL_UNION_CONTEXT     4
 195#define FE_MM_R_FE_INFO                   5
 196#define FE_MM_R_FE_MONITOR                6
 197
 198#define FE_MM_W_CHANNEL_HEAD              7
 199#define FE_MM_W_CHANNEL_UNION             8
 200#define FE_MM_W_CHANNEL_CONTEXT           9
 201#define FE_MM_R_CHANNEL_UNION            10
 202#define FE_MM_R_CHANNEL_CONTEXT          11
 203#define FE_MM_R_CHANNEL_TUNE_STATE       12
 204
 205#define FE_MM_R_GENERIC_MONITORING_SIZE  13
 206#define FE_MM_W_GENERIC_MONITORING           14
 207#define FE_MM_R_GENERIC_MONITORING           15
 208
 209#define FE_MM_W_COMPONENT_ACCESS         16
 210#define FE_MM_RW_COMPONENT_ACCESS_BUFFER 17
 211static int dib9000_risc_apb_access_read(struct dib9000_state *state, u32 address, u16 attribute, const u8 * tx, u32 txlen, u8 * b, u32 len);
 212static int dib9000_risc_apb_access_write(struct dib9000_state *state, u32 address, u16 attribute, const u8 * b, u32 len);
 213
 214static u16 to_fw_output_mode(u16 mode)
 215{
 216        switch (mode) {
 217        case OUTMODE_HIGH_Z:
 218                return 0;
 219        case OUTMODE_MPEG2_PAR_GATED_CLK:
 220                return 4;
 221        case OUTMODE_MPEG2_PAR_CONT_CLK:
 222                return 8;
 223        case OUTMODE_MPEG2_SERIAL:
 224                return 16;
 225        case OUTMODE_DIVERSITY:
 226                return 128;
 227        case OUTMODE_MPEG2_FIFO:
 228                return 2;
 229        case OUTMODE_ANALOG_ADC:
 230                return 1;
 231        default:
 232                return 0;
 233        }
 234}
 235
 236static int dib9000_read16_attr(struct dib9000_state *state, u16 reg, u8 *b, u32 len, u16 attribute)
 237{
 238        u32 chunk_size = 126;
 239        u32 l;
 240        int ret;
 241
 242        if (state->platform.risc.fw_is_running && (reg < 1024))
 243                return dib9000_risc_apb_access_read(state, reg, attribute, NULL, 0, b, len);
 244
 245        memset(state->msg, 0, 2 * sizeof(struct i2c_msg));
 246        state->msg[0].addr = state->i2c.i2c_addr >> 1;
 247        state->msg[0].flags = 0;
 248        state->msg[0].buf = state->i2c_write_buffer;
 249        state->msg[0].len = 2;
 250        state->msg[1].addr = state->i2c.i2c_addr >> 1;
 251        state->msg[1].flags = I2C_M_RD;
 252        state->msg[1].buf = b;
 253        state->msg[1].len = len;
 254
 255        state->i2c_write_buffer[0] = reg >> 8;
 256        state->i2c_write_buffer[1] = reg & 0xff;
 257
 258        if (attribute & DATA_BUS_ACCESS_MODE_8BIT)
 259                state->i2c_write_buffer[0] |= (1 << 5);
 260        if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 261                state->i2c_write_buffer[0] |= (1 << 4);
 262
 263        do {
 264                l = len < chunk_size ? len : chunk_size;
 265                state->msg[1].len = l;
 266                state->msg[1].buf = b;
 267                ret = i2c_transfer(state->i2c.i2c_adap, state->msg, 2) != 2 ? -EREMOTEIO : 0;
 268                if (ret != 0) {
 269                        dprintk("i2c read error on %d\n", reg);
 270                        return -EREMOTEIO;
 271                }
 272
 273                b += l;
 274                len -= l;
 275
 276                if (!(attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT))
 277                        reg += l / 2;
 278        } while ((ret == 0) && len);
 279
 280        return 0;
 281}
 282
 283static u16 dib9000_i2c_read16(struct i2c_device *i2c, u16 reg)
 284{
 285        struct i2c_msg msg[2] = {
 286                {.addr = i2c->i2c_addr >> 1, .flags = 0,
 287                        .buf = i2c->i2c_write_buffer, .len = 2},
 288                {.addr = i2c->i2c_addr >> 1, .flags = I2C_M_RD,
 289                        .buf = i2c->i2c_read_buffer, .len = 2},
 290        };
 291
 292        i2c->i2c_write_buffer[0] = reg >> 8;
 293        i2c->i2c_write_buffer[1] = reg & 0xff;
 294
 295        if (i2c_transfer(i2c->i2c_adap, msg, 2) != 2) {
 296                dprintk("read register %x error\n", reg);
 297                return 0;
 298        }
 299
 300        return (i2c->i2c_read_buffer[0] << 8) | i2c->i2c_read_buffer[1];
 301}
 302
 303static inline u16 dib9000_read_word(struct dib9000_state *state, u16 reg)
 304{
 305        if (dib9000_read16_attr(state, reg, state->i2c_read_buffer, 2, 0) != 0)
 306                return 0;
 307        return (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
 308}
 309
 310static inline u16 dib9000_read_word_attr(struct dib9000_state *state, u16 reg, u16 attribute)
 311{
 312        if (dib9000_read16_attr(state, reg, state->i2c_read_buffer, 2,
 313                                attribute) != 0)
 314                return 0;
 315        return (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
 316}
 317
 318#define dib9000_read16_noinc_attr(state, reg, b, len, attribute) dib9000_read16_attr(state, reg, b, len, (attribute) | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 319
 320static int dib9000_write16_attr(struct dib9000_state *state, u16 reg, const u8 *buf, u32 len, u16 attribute)
 321{
 322        u32 chunk_size = 126;
 323        u32 l;
 324        int ret;
 325
 326        if (state->platform.risc.fw_is_running && (reg < 1024)) {
 327                if (dib9000_risc_apb_access_write
 328                    (state, reg, DATA_BUS_ACCESS_MODE_16BIT | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT | attribute, buf, len) != 0)
 329                        return -EINVAL;
 330                return 0;
 331        }
 332
 333        memset(&state->msg[0], 0, sizeof(struct i2c_msg));
 334        state->msg[0].addr = state->i2c.i2c_addr >> 1;
 335        state->msg[0].flags = 0;
 336        state->msg[0].buf = state->i2c_write_buffer;
 337        state->msg[0].len = len + 2;
 338
 339        state->i2c_write_buffer[0] = (reg >> 8) & 0xff;
 340        state->i2c_write_buffer[1] = (reg) & 0xff;
 341
 342        if (attribute & DATA_BUS_ACCESS_MODE_8BIT)
 343                state->i2c_write_buffer[0] |= (1 << 5);
 344        if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 345                state->i2c_write_buffer[0] |= (1 << 4);
 346
 347        do {
 348                l = len < chunk_size ? len : chunk_size;
 349                state->msg[0].len = l + 2;
 350                memcpy(&state->i2c_write_buffer[2], buf, l);
 351
 352                ret = i2c_transfer(state->i2c.i2c_adap, state->msg, 1) != 1 ? -EREMOTEIO : 0;
 353
 354                buf += l;
 355                len -= l;
 356
 357                if (!(attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT))
 358                        reg += l / 2;
 359        } while ((ret == 0) && len);
 360
 361        return ret;
 362}
 363
 364static int dib9000_i2c_write16(struct i2c_device *i2c, u16 reg, u16 val)
 365{
 366        struct i2c_msg msg = {
 367                .addr = i2c->i2c_addr >> 1, .flags = 0,
 368                .buf = i2c->i2c_write_buffer, .len = 4
 369        };
 370
 371        i2c->i2c_write_buffer[0] = (reg >> 8) & 0xff;
 372        i2c->i2c_write_buffer[1] = reg & 0xff;
 373        i2c->i2c_write_buffer[2] = (val >> 8) & 0xff;
 374        i2c->i2c_write_buffer[3] = val & 0xff;
 375
 376        return i2c_transfer(i2c->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
 377}
 378
 379static inline int dib9000_write_word(struct dib9000_state *state, u16 reg, u16 val)
 380{
 381        u8 b[2] = { val >> 8, val & 0xff };
 382        return dib9000_write16_attr(state, reg, b, 2, 0);
 383}
 384
 385static inline int dib9000_write_word_attr(struct dib9000_state *state, u16 reg, u16 val, u16 attribute)
 386{
 387        u8 b[2] = { val >> 8, val & 0xff };
 388        return dib9000_write16_attr(state, reg, b, 2, attribute);
 389}
 390
 391#define dib9000_write(state, reg, buf, len) dib9000_write16_attr(state, reg, buf, len, 0)
 392#define dib9000_write16_noinc(state, reg, buf, len) dib9000_write16_attr(state, reg, buf, len, DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 393#define dib9000_write16_noinc_attr(state, reg, buf, len, attribute) dib9000_write16_attr(state, reg, buf, len, DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT | (attribute))
 394
 395#define dib9000_mbx_send(state, id, data, len) dib9000_mbx_send_attr(state, id, data, len, 0)
 396#define dib9000_mbx_get_message(state, id, msg, len) dib9000_mbx_get_message_attr(state, id, msg, len, 0)
 397
 398#define MAC_IRQ      (1 << 1)
 399#define IRQ_POL_MSK  (1 << 4)
 400
 401#define dib9000_risc_mem_read_chunks(state, b, len) dib9000_read16_attr(state, 1063, b, len, DATA_BUS_ACCESS_MODE_8BIT | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 402#define dib9000_risc_mem_write_chunks(state, buf, len) dib9000_write16_attr(state, 1063, buf, len, DATA_BUS_ACCESS_MODE_8BIT | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
 403
 404static void dib9000_risc_mem_setup_cmd(struct dib9000_state *state, u32 addr, u32 len, u8 reading)
 405{
 406        u8 b[14] = { 0 };
 407
 408/*      dprintk("%d memcmd: %d %d %d\n", state->fe_id, addr, addr+len, len); */
 409/*      b[0] = 0 << 7; */
 410        b[1] = 1;
 411
 412/*      b[2] = 0; */
 413/*      b[3] = 0; */
 414        b[4] = (u8) (addr >> 8);
 415        b[5] = (u8) (addr & 0xff);
 416
 417/*      b[10] = 0; */
 418/*      b[11] = 0; */
 419        b[12] = (u8) (addr >> 8);
 420        b[13] = (u8) (addr & 0xff);
 421
 422        addr += len;
 423/*      b[6] = 0; */
 424/*      b[7] = 0; */
 425        b[8] = (u8) (addr >> 8);
 426        b[9] = (u8) (addr & 0xff);
 427
 428        dib9000_write(state, 1056, b, 14);
 429        if (reading)
 430                dib9000_write_word(state, 1056, (1 << 15) | 1);
 431        state->platform.risc.memcmd = -1;       /* if it was called directly reset it - to force a future setup-call to set it */
 432}
 433
 434static void dib9000_risc_mem_setup(struct dib9000_state *state, u8 cmd)
 435{
 436        struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[cmd & 0x7f];
 437        /* decide whether we need to "refresh" the memory controller */
 438        if (state->platform.risc.memcmd == cmd &&       /* same command */
 439            !(cmd & 0x80 && m->size < 67))      /* and we do not want to read something with less than 67 bytes looping - working around a bug in the memory controller */
 440                return;
 441        dib9000_risc_mem_setup_cmd(state, m->addr, m->size, cmd & 0x80);
 442        state->platform.risc.memcmd = cmd;
 443}
 444
 445static int dib9000_risc_mem_read(struct dib9000_state *state, u8 cmd, u8 * b, u16 len)
 446{
 447        if (!state->platform.risc.fw_is_running)
 448                return -EIO;
 449
 450        if (mutex_lock_interruptible(&state->platform.risc.mem_lock) < 0) {
 451                dprintk("could not get the lock\n");
 452                return -EINTR;
 453        }
 454        dib9000_risc_mem_setup(state, cmd | 0x80);
 455        dib9000_risc_mem_read_chunks(state, b, len);
 456        mutex_unlock(&state->platform.risc.mem_lock);
 457        return 0;
 458}
 459
 460static int dib9000_risc_mem_write(struct dib9000_state *state, u8 cmd, const u8 * b)
 461{
 462        struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[cmd];
 463        if (!state->platform.risc.fw_is_running)
 464                return -EIO;
 465
 466        if (mutex_lock_interruptible(&state->platform.risc.mem_lock) < 0) {
 467                dprintk("could not get the lock\n");
 468                return -EINTR;
 469        }
 470        dib9000_risc_mem_setup(state, cmd);
 471        dib9000_risc_mem_write_chunks(state, b, m->size);
 472        mutex_unlock(&state->platform.risc.mem_lock);
 473        return 0;
 474}
 475
 476static int dib9000_firmware_download(struct dib9000_state *state, u8 risc_id, u16 key, const u8 * code, u32 len)
 477{
 478        u16 offs;
 479
 480        if (risc_id == 1)
 481                offs = 16;
 482        else
 483                offs = 0;
 484
 485        /* config crtl reg */
 486        dib9000_write_word(state, 1024 + offs, 0x000f);
 487        dib9000_write_word(state, 1025 + offs, 0);
 488        dib9000_write_word(state, 1031 + offs, key);
 489
 490        dprintk("going to download %dB of microcode\n", len);
 491        if (dib9000_write16_noinc(state, 1026 + offs, (u8 *) code, (u16) len) != 0) {
 492                dprintk("error while downloading microcode for RISC %c\n", 'A' + risc_id);
 493                return -EIO;
 494        }
 495
 496        dprintk("Microcode for RISC %c loaded\n", 'A' + risc_id);
 497
 498        return 0;
 499}
 500
 501static int dib9000_mbx_host_init(struct dib9000_state *state, u8 risc_id)
 502{
 503        u16 mbox_offs;
 504        u16 reset_reg;
 505        u16 tries = 1000;
 506
 507        if (risc_id == 1)
 508                mbox_offs = 16;
 509        else
 510                mbox_offs = 0;
 511
 512        /* Reset mailbox  */
 513        dib9000_write_word(state, 1027 + mbox_offs, 0x8000);
 514
 515        /* Read reset status */
 516        do {
 517                reset_reg = dib9000_read_word(state, 1027 + mbox_offs);
 518                msleep(100);
 519        } while ((reset_reg & 0x8000) && --tries);
 520
 521        if (reset_reg & 0x8000) {
 522                dprintk("MBX: init ERROR, no response from RISC %c\n", 'A' + risc_id);
 523                return -EIO;
 524        }
 525        dprintk("MBX: initialized\n");
 526        return 0;
 527}
 528
 529#define MAX_MAILBOX_TRY 100
 530static int dib9000_mbx_send_attr(struct dib9000_state *state, u8 id, u16 * data, u8 len, u16 attr)
 531{
 532        u8 *d, b[2];
 533        u16 tmp;
 534        u16 size;
 535        u32 i;
 536        int ret = 0;
 537
 538        if (!state->platform.risc.fw_is_running)
 539                return -EINVAL;
 540
 541        if (mutex_lock_interruptible(&state->platform.risc.mbx_if_lock) < 0) {
 542                dprintk("could not get the lock\n");
 543                return -EINTR;
 544        }
 545        tmp = MAX_MAILBOX_TRY;
 546        do {
 547                size = dib9000_read_word_attr(state, 1043, attr) & 0xff;
 548                if ((size + len + 1) > MBX_MAX_WORDS && --tmp) {
 549                        dprintk("MBX: RISC mbx full, retrying\n");
 550                        msleep(100);
 551                } else
 552                        break;
 553        } while (1);
 554
 555        /*dprintk( "MBX: size: %d\n", size); */
 556
 557        if (tmp == 0) {
 558                ret = -EINVAL;
 559                goto out;
 560        }
 561#ifdef DUMP_MSG
 562        dprintk("--> %02x %d %*ph\n", id, len + 1, len, data);
 563#endif
 564
 565        /* byte-order conversion - works on big (where it is not necessary) or little endian */
 566        d = (u8 *) data;
 567        for (i = 0; i < len; i++) {
 568                tmp = data[i];
 569                *d++ = tmp >> 8;
 570                *d++ = tmp & 0xff;
 571        }
 572
 573        /* write msg */
 574        b[0] = id;
 575        b[1] = len + 1;
 576        if (dib9000_write16_noinc_attr(state, 1045, b, 2, attr) != 0 || dib9000_write16_noinc_attr(state, 1045, (u8 *) data, len * 2, attr) != 0) {
 577                ret = -EIO;
 578                goto out;
 579        }
 580
 581        /* update register nb_mes_in_RX */
 582        ret = (u8) dib9000_write_word_attr(state, 1043, 1 << 14, attr);
 583
 584out:
 585        mutex_unlock(&state->platform.risc.mbx_if_lock);
 586
 587        return ret;
 588}
 589
 590static u8 dib9000_mbx_read(struct dib9000_state *state, u16 * data, u8 risc_id, u16 attr)
 591{
 592#ifdef DUMP_MSG
 593        u16 *d = data;
 594#endif
 595
 596        u16 tmp, i;
 597        u8 size;
 598        u8 mc_base;
 599
 600        if (!state->platform.risc.fw_is_running)
 601                return 0;
 602
 603        if (mutex_lock_interruptible(&state->platform.risc.mbx_if_lock) < 0) {
 604                dprintk("could not get the lock\n");
 605                return 0;
 606        }
 607        if (risc_id == 1)
 608                mc_base = 16;
 609        else
 610                mc_base = 0;
 611
 612        /* Length and type in the first word */
 613        *data = dib9000_read_word_attr(state, 1029 + mc_base, attr);
 614
 615        size = *data & 0xff;
 616        if (size <= MBX_MAX_WORDS) {
 617                data++;
 618                size--;         /* Initial word already read */
 619
 620                dib9000_read16_noinc_attr(state, 1029 + mc_base, (u8 *) data, size * 2, attr);
 621
 622                /* to word conversion */
 623                for (i = 0; i < size; i++) {
 624                        tmp = *data;
 625                        *data = (tmp >> 8) | (tmp << 8);
 626                        data++;
 627                }
 628
 629#ifdef DUMP_MSG
 630                dprintk("<--\n");
 631                for (i = 0; i < size + 1; i++)
 632                        dprintk("%04x\n", d[i]);
 633                dprintk("\n");
 634#endif
 635        } else {
 636                dprintk("MBX: message is too big for message cache (%d), flushing message\n", size);
 637                size--;         /* Initial word already read */
 638                while (size--)
 639                        dib9000_read16_noinc_attr(state, 1029 + mc_base, (u8 *) data, 2, attr);
 640        }
 641        /* Update register nb_mes_in_TX */
 642        dib9000_write_word_attr(state, 1028 + mc_base, 1 << 14, attr);
 643
 644        mutex_unlock(&state->platform.risc.mbx_if_lock);
 645
 646        return size + 1;
 647}
 648
 649static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 size)
 650{
 651        u32 ts = data[1] << 16 | data[0];
 652        char *b = (char *)&data[2];
 653
 654        b[2 * (size - 2) - 1] = '\0';   /* Bullet proof the buffer */
 655        if (*b == '~') {
 656                b++;
 657                dprintk("%s\n", b);
 658        } else
 659                dprintk("RISC%d: %d.%04d %s\n",
 660                        state->fe_id,
 661                        ts / 10000, ts % 10000, *b ? b : "<empty>");
 662        return 1;
 663}
 664
 665static int dib9000_mbx_fetch_to_cache(struct dib9000_state *state, u16 attr)
 666{
 667        int i;
 668        u8 size;
 669        u16 *block;
 670        /* find a free slot */
 671        for (i = 0; i < DIB9000_MSG_CACHE_SIZE; i++) {
 672                block = state->platform.risc.message_cache[i];
 673                if (*block == 0) {
 674                        size = dib9000_mbx_read(state, block, 1, attr);
 675
 676/*                      dprintk( "MBX: fetched %04x message to cache\n", *block); */
 677
 678                        switch (*block >> 8) {
 679                        case IN_MSG_DEBUG_BUF:
 680                                dib9000_risc_debug_buf(state, block + 1, size); /* debug-messages are going to be printed right away */
 681                                *block = 0;     /* free the block */
 682                                break;
 683#if 0
 684                        case IN_MSG_DATA:       /* FE-TRACE */
 685                                dib9000_risc_data_process(state, block + 1, size);
 686                                *block = 0;
 687                                break;
 688#endif
 689                        default:
 690                                break;
 691                        }
 692
 693                        return 1;
 694                }
 695        }
 696        dprintk("MBX: no free cache-slot found for new message...\n");
 697        return -1;
 698}
 699
 700static u8 dib9000_mbx_count(struct dib9000_state *state, u8 risc_id, u16 attr)
 701{
 702        if (risc_id == 0)
 703                return (u8) (dib9000_read_word_attr(state, 1028, attr) >> 10) & 0x1f;   /* 5 bit field */
 704        else
 705                return (u8) (dib9000_read_word_attr(state, 1044, attr) >> 8) & 0x7f;    /* 7 bit field */
 706}
 707
 708static int dib9000_mbx_process(struct dib9000_state *state, u16 attr)
 709{
 710        int ret = 0;
 711
 712        if (!state->platform.risc.fw_is_running)
 713                return -1;
 714
 715        if (mutex_lock_interruptible(&state->platform.risc.mbx_lock) < 0) {
 716                dprintk("could not get the lock\n");
 717                return -1;
 718        }
 719
 720        if (dib9000_mbx_count(state, 1, attr))  /* 1=RiscB */
 721                ret = dib9000_mbx_fetch_to_cache(state, attr);
 722
 723        dib9000_read_word_attr(state, 1229, attr);      /* Clear the IRQ */
 724/*      if (tmp) */
 725/*              dprintk( "cleared IRQ: %x\n", tmp); */
 726        mutex_unlock(&state->platform.risc.mbx_lock);
 727
 728        return ret;
 729}
 730
 731static int dib9000_mbx_get_message_attr(struct dib9000_state *state, u16 id, u16 * msg, u8 * size, u16 attr)
 732{
 733        u8 i;
 734        u16 *block;
 735        u16 timeout = 30;
 736
 737        *msg = 0;
 738        do {
 739                /* dib9000_mbx_get_from_cache(); */
 740                for (i = 0; i < DIB9000_MSG_CACHE_SIZE; i++) {
 741                        block = state->platform.risc.message_cache[i];
 742                        if ((*block >> 8) == id) {
 743                                *size = (*block & 0xff) - 1;
 744                                memcpy(msg, block + 1, (*size) * 2);
 745                                *block = 0;     /* free the block */
 746                                i = 0;  /* signal that we found a message */
 747                                break;
 748                        }
 749                }
 750
 751                if (i == 0)
 752                        break;
 753
 754                if (dib9000_mbx_process(state, attr) == -1)     /* try to fetch one message - if any */
 755                        return -1;
 756
 757        } while (--timeout);
 758
 759        if (timeout == 0) {
 760                dprintk("waiting for message %d timed out\n", id);
 761                return -1;
 762        }
 763
 764        return i == 0;
 765}
 766
 767static int dib9000_risc_check_version(struct dib9000_state *state)
 768{
 769        u8 r[4];
 770        u8 size;
 771        u16 fw_version = 0;
 772
 773        if (dib9000_mbx_send(state, OUT_MSG_REQ_VERSION, &fw_version, 1) != 0)
 774                return -EIO;
 775
 776        if (dib9000_mbx_get_message(state, IN_MSG_VERSION, (u16 *) r, &size) < 0)
 777                return -EIO;
 778
 779        fw_version = (r[0] << 8) | r[1];
 780        dprintk("RISC: ver: %d.%02d (IC: %d)\n", fw_version >> 10, fw_version & 0x3ff, (r[2] << 8) | r[3]);
 781
 782        if ((fw_version >> 10) != 7)
 783                return -EINVAL;
 784
 785        switch (fw_version & 0x3ff) {
 786        case 11:
 787        case 12:
 788        case 14:
 789        case 15:
 790        case 16:
 791        case 17:
 792                break;
 793        default:
 794                dprintk("RISC: invalid firmware version");
 795                return -EINVAL;
 796        }
 797
 798        dprintk("RISC: valid firmware version");
 799        return 0;
 800}
 801
 802static int dib9000_fw_boot(struct dib9000_state *state, const u8 * codeA, u32 lenA, const u8 * codeB, u32 lenB)
 803{
 804        /* Reconfig pool mac ram */
 805        dib9000_write_word(state, 1225, 0x02);  /* A: 8k C, 4 k D - B: 32k C 6 k D - IRAM 96k */
 806        dib9000_write_word(state, 1226, 0x05);
 807
 808        /* Toggles IP crypto to Host APB interface. */
 809        dib9000_write_word(state, 1542, 1);
 810
 811        /* Set jump and no jump in the dma box */
 812        dib9000_write_word(state, 1074, 0);
 813        dib9000_write_word(state, 1075, 0);
 814
 815        /* Set MAC as APB Master. */
 816        dib9000_write_word(state, 1237, 0);
 817
 818        /* Reset the RISCs */
 819        if (codeA != NULL)
 820                dib9000_write_word(state, 1024, 2);
 821        else
 822                dib9000_write_word(state, 1024, 15);
 823        if (codeB != NULL)
 824                dib9000_write_word(state, 1040, 2);
 825
 826        if (codeA != NULL)
 827                dib9000_firmware_download(state, 0, 0x1234, codeA, lenA);
 828        if (codeB != NULL)
 829                dib9000_firmware_download(state, 1, 0x1234, codeB, lenB);
 830
 831        /* Run the RISCs */
 832        if (codeA != NULL)
 833                dib9000_write_word(state, 1024, 0);
 834        if (codeB != NULL)
 835                dib9000_write_word(state, 1040, 0);
 836
 837        if (codeA != NULL)
 838                if (dib9000_mbx_host_init(state, 0) != 0)
 839                        return -EIO;
 840        if (codeB != NULL)
 841                if (dib9000_mbx_host_init(state, 1) != 0)
 842                        return -EIO;
 843
 844        msleep(100);
 845        state->platform.risc.fw_is_running = 1;
 846
 847        if (dib9000_risc_check_version(state) != 0)
 848                return -EINVAL;
 849
 850        state->platform.risc.memcmd = 0xff;
 851        return 0;
 852}
 853
 854static u16 dib9000_identify(struct i2c_device *client)
 855{
 856        u16 value;
 857
 858        value = dib9000_i2c_read16(client, 896);
 859        if (value != 0x01b3) {
 860                dprintk("wrong Vendor ID (0x%x)\n", value);
 861                return 0;
 862        }
 863
 864        value = dib9000_i2c_read16(client, 897);
 865        if (value != 0x4000 && value != 0x4001 && value != 0x4002 && value != 0x4003 && value != 0x4004 && value != 0x4005) {
 866                dprintk("wrong Device ID (0x%x)\n", value);
 867                return 0;
 868        }
 869
 870        /* protect this driver to be used with 7000PC */
 871        if (value == 0x4000 && dib9000_i2c_read16(client, 769) == 0x4000) {
 872                dprintk("this driver does not work with DiB7000PC\n");
 873                return 0;
 874        }
 875
 876        switch (value) {
 877        case 0x4000:
 878                dprintk("found DiB7000MA/PA/MB/PB\n");
 879                break;
 880        case 0x4001:
 881                dprintk("found DiB7000HC\n");
 882                break;
 883        case 0x4002:
 884                dprintk("found DiB7000MC\n");
 885                break;
 886        case 0x4003:
 887                dprintk("found DiB9000A\n");
 888                break;
 889        case 0x4004:
 890                dprintk("found DiB9000H\n");
 891                break;
 892        case 0x4005:
 893                dprintk("found DiB9000M\n");
 894                break;
 895        }
 896
 897        return value;
 898}
 899
 900static void dib9000_set_power_mode(struct dib9000_state *state, enum dib9000_power_mode mode)
 901{
 902        /* by default everything is going to be powered off */
 903        u16 reg_903 = 0x3fff, reg_904 = 0xffff, reg_905 = 0xffff, reg_906;
 904        u8 offset;
 905
 906        if (state->revision == 0x4003 || state->revision == 0x4004 || state->revision == 0x4005)
 907                offset = 1;
 908        else
 909                offset = 0;
 910
 911        reg_906 = dib9000_read_word(state, 906 + offset) | 0x3; /* keep settings for RISC */
 912
 913        /* now, depending on the requested mode, we power on */
 914        switch (mode) {
 915                /* power up everything in the demod */
 916        case DIB9000_POWER_ALL:
 917                reg_903 = 0x0000;
 918                reg_904 = 0x0000;
 919                reg_905 = 0x0000;
 920                reg_906 = 0x0000;
 921                break;
 922
 923                /* just leave power on the control-interfaces: GPIO and (I2C or SDIO or SRAM) */
 924        case DIB9000_POWER_INTERFACE_ONLY:      /* TODO power up either SDIO or I2C or SRAM */
 925                reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 2));
 926                break;
 927
 928        case DIB9000_POWER_INTERF_ANALOG_AGC:
 929                reg_903 &= ~((1 << 15) | (1 << 14) | (1 << 11) | (1 << 10));
 930                reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 2));
 931                reg_906 &= ~((1 << 0));
 932                break;
 933
 934        case DIB9000_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD:
 935                reg_903 = 0x0000;
 936                reg_904 = 0x801f;
 937                reg_905 = 0x0000;
 938                reg_906 &= ~((1 << 0));
 939                break;
 940
 941        case DIB9000_POWER_COR4_CRY_ESRAM_MOUT_NUD:
 942                reg_903 = 0x0000;
 943                reg_904 = 0x8000;
 944                reg_905 = 0x010b;
 945                reg_906 &= ~((1 << 0));
 946                break;
 947        default:
 948        case DIB9000_POWER_NO:
 949                break;
 950        }
 951
 952        /* always power down unused parts */
 953        if (!state->platform.host.mobile_mode)
 954                reg_904 |= (1 << 7) | (1 << 6) | (1 << 4) | (1 << 2) | (1 << 1);
 955
 956        /* P_sdio_select_clk = 0 on MC and after */
 957        if (state->revision != 0x4000)
 958                reg_906 <<= 1;
 959
 960        dib9000_write_word(state, 903 + offset, reg_903);
 961        dib9000_write_word(state, 904 + offset, reg_904);
 962        dib9000_write_word(state, 905 + offset, reg_905);
 963        dib9000_write_word(state, 906 + offset, reg_906);
 964}
 965
 966static int dib9000_fw_reset(struct dvb_frontend *fe)
 967{
 968        struct dib9000_state *state = fe->demodulator_priv;
 969
 970        dib9000_write_word(state, 1817, 0x0003);
 971
 972        dib9000_write_word(state, 1227, 1);
 973        dib9000_write_word(state, 1227, 0);
 974
 975        switch ((state->revision = dib9000_identify(&state->i2c))) {
 976        case 0x4003:
 977        case 0x4004:
 978        case 0x4005:
 979                state->reg_offs = 1;
 980                break;
 981        default:
 982                return -EINVAL;
 983        }
 984
 985        /* reset the i2c-master to use the host interface */
 986        dibx000_reset_i2c_master(&state->i2c_master);
 987
 988        dib9000_set_power_mode(state, DIB9000_POWER_ALL);
 989
 990        /* unforce divstr regardless whether i2c enumeration was done or not */
 991        dib9000_write_word(state, 1794, dib9000_read_word(state, 1794) & ~(1 << 1));
 992        dib9000_write_word(state, 1796, 0);
 993        dib9000_write_word(state, 1805, 0x805);
 994
 995        /* restart all parts */
 996        dib9000_write_word(state, 898, 0xffff);
 997        dib9000_write_word(state, 899, 0xffff);
 998        dib9000_write_word(state, 900, 0x0001);
 999        dib9000_write_word(state, 901, 0xff19);
1000        dib9000_write_word(state, 902, 0x003c);
1001
1002        dib9000_write_word(state, 898, 0);
1003        dib9000_write_word(state, 899, 0);
1004        dib9000_write_word(state, 900, 0);
1005        dib9000_write_word(state, 901, 0);
1006        dib9000_write_word(state, 902, 0);
1007
1008        dib9000_write_word(state, 911, state->chip.d9.cfg.if_drives);
1009
1010        dib9000_set_power_mode(state, DIB9000_POWER_INTERFACE_ONLY);
1011
1012        return 0;
1013}
1014
1015static int dib9000_risc_apb_access_read(struct dib9000_state *state, u32 address, u16 attribute, const u8 * tx, u32 txlen, u8 * b, u32 len)
1016{
1017        u16 mb[10];
1018        u8 i, s;
1019
1020        if (address >= 1024 || !state->platform.risc.fw_is_running)
1021                return -EINVAL;
1022
1023        /* dprintk( "APB access thru rd fw %d %x\n", address, attribute); */
1024
1025        mb[0] = (u16) address;
1026        mb[1] = len / 2;
1027        dib9000_mbx_send_attr(state, OUT_MSG_BRIDGE_APB_R, mb, 2, attribute);
1028        switch (dib9000_mbx_get_message_attr(state, IN_MSG_END_BRIDGE_APB_RW, mb, &s, attribute)) {
1029        case 1:
1030                s--;
1031                for (i = 0; i < s; i++) {
1032                        b[i * 2] = (mb[i + 1] >> 8) & 0xff;
1033                        b[i * 2 + 1] = (mb[i + 1]) & 0xff;
1034                }
1035                return 0;
1036        default:
1037                return -EIO;
1038        }
1039        return -EIO;
1040}
1041
1042static int dib9000_risc_apb_access_write(struct dib9000_state *state, u32 address, u16 attribute, const u8 * b, u32 len)
1043{
1044        u16 mb[10];
1045        u8 s, i;
1046
1047        if (address >= 1024 || !state->platform.risc.fw_is_running)
1048                return -EINVAL;
1049
1050        if (len > 18)
1051                return -EINVAL;
1052
1053        /* dprintk( "APB access thru wr fw %d %x\n", address, attribute); */
1054
1055        mb[0] = (u16)address;
1056        for (i = 0; i + 1 < len; i += 2)
1057                mb[1 + i / 2] = b[i] << 8 | b[i + 1];
1058        if (len & 1)
1059                mb[1 + len / 2] = b[len - 1] << 8;
1060
1061        dib9000_mbx_send_attr(state, OUT_MSG_BRIDGE_APB_W, mb, (3 + len) / 2, attribute);
1062        return dib9000_mbx_get_message_attr(state, IN_MSG_END_BRIDGE_APB_RW, mb, &s, attribute) == 1 ? 0 : -EINVAL;
1063}
1064
1065static int dib9000_fw_memmbx_sync(struct dib9000_state *state, u8 i)
1066{
1067        u8 index_loop = 10;
1068
1069        if (!state->platform.risc.fw_is_running)
1070                return 0;
1071        dib9000_risc_mem_write(state, FE_MM_RW_SYNC, &i);
1072        do {
1073                dib9000_risc_mem_read(state, FE_MM_RW_SYNC, state->i2c_read_buffer, 1);
1074        } while (state->i2c_read_buffer[0] && index_loop--);
1075
1076        if (index_loop > 0)
1077                return 0;
1078        return -EIO;
1079}
1080
1081static int dib9000_fw_init(struct dib9000_state *state)
1082{
1083        struct dibGPIOFunction *f;
1084        u16 b[40] = { 0 };
1085        u8 i;
1086        u8 size;
1087
1088        if (dib9000_fw_boot(state, NULL, 0, state->chip.d9.cfg.microcode_B_fe_buffer, state->chip.d9.cfg.microcode_B_fe_size) != 0)
1089                return -EIO;
1090
1091        /* initialize the firmware */
1092        for (i = 0; i < ARRAY_SIZE(state->chip.d9.cfg.gpio_function); i++) {
1093                f = &state->chip.d9.cfg.gpio_function[i];
1094                if (f->mask) {
1095                        switch (f->function) {
1096                        case BOARD_GPIO_FUNCTION_COMPONENT_ON:
1097                                b[0] = (u16) f->mask;
1098                                b[1] = (u16) f->direction;
1099                                b[2] = (u16) f->value;
1100                                break;
1101                        case BOARD_GPIO_FUNCTION_COMPONENT_OFF:
1102                                b[3] = (u16) f->mask;
1103                                b[4] = (u16) f->direction;
1104                                b[5] = (u16) f->value;
1105                                break;
1106                        }
1107                }
1108        }
1109        if (dib9000_mbx_send(state, OUT_MSG_CONF_GPIO, b, 15) != 0)
1110                return -EIO;
1111
1112        /* subband */
1113        b[0] = state->chip.d9.cfg.subband.size; /* type == 0 -> GPIO - PWM not yet supported */
1114        for (i = 0; i < state->chip.d9.cfg.subband.size; i++) {
1115                b[1 + i * 4] = state->chip.d9.cfg.subband.subband[i].f_mhz;
1116                b[2 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.mask;
1117                b[3 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.direction;
1118                b[4 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.value;
1119        }
1120        b[1 + i * 4] = 0;       /* fe_id */
1121        if (dib9000_mbx_send(state, OUT_MSG_SUBBAND_SEL, b, 2 + 4 * i) != 0)
1122                return -EIO;
1123
1124        /* 0 - id, 1 - no_of_frontends */
1125        b[0] = (0 << 8) | 1;
1126        /* 0 = i2c-address demod, 0 = tuner */
1127        b[1] = (0 << 8) | (0);
1128        b[2] = (u16) (((state->chip.d9.cfg.xtal_clock_khz * 1000) >> 16) & 0xffff);
1129        b[3] = (u16) (((state->chip.d9.cfg.xtal_clock_khz * 1000)) & 0xffff);
1130        b[4] = (u16) ((state->chip.d9.cfg.vcxo_timer >> 16) & 0xffff);
1131        b[5] = (u16) ((state->chip.d9.cfg.vcxo_timer) & 0xffff);
1132        b[6] = (u16) ((state->chip.d9.cfg.timing_frequency >> 16) & 0xffff);
1133        b[7] = (u16) ((state->chip.d9.cfg.timing_frequency) & 0xffff);
1134        b[29] = state->chip.d9.cfg.if_drives;
1135        if (dib9000_mbx_send(state, OUT_MSG_INIT_DEMOD, b, ARRAY_SIZE(b)) != 0)
1136                return -EIO;
1137
1138        if (dib9000_mbx_send(state, OUT_MSG_FE_FW_DL, NULL, 0) != 0)
1139                return -EIO;
1140
1141        if (dib9000_mbx_get_message(state, IN_MSG_FE_FW_DL_DONE, b, &size) < 0)
1142                return -EIO;
1143
1144        if (size > ARRAY_SIZE(b)) {
1145                dprintk("error : firmware returned %dbytes needed but the used buffer has only %dbytes\n Firmware init ABORTED", size,
1146                        (int)ARRAY_SIZE(b));
1147                return -EINVAL;
1148        }
1149
1150        for (i = 0; i < size; i += 2) {
1151                state->platform.risc.fe_mm[i / 2].addr = b[i + 0];
1152                state->platform.risc.fe_mm[i / 2].size = b[i + 1];
1153        }
1154
1155        return 0;
1156}
1157
1158static void dib9000_fw_set_channel_head(struct dib9000_state *state)
1159{
1160        u8 b[9];
1161        u32 freq = state->fe[0]->dtv_property_cache.frequency / 1000;
1162        if (state->fe_id % 2)
1163                freq += 101;
1164
1165        b[0] = (u8) ((freq >> 0) & 0xff);
1166        b[1] = (u8) ((freq >> 8) & 0xff);
1167        b[2] = (u8) ((freq >> 16) & 0xff);
1168        b[3] = (u8) ((freq >> 24) & 0xff);
1169        b[4] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 0) & 0xff);
1170        b[5] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 8) & 0xff);
1171        b[6] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 16) & 0xff);
1172        b[7] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 24) & 0xff);
1173        b[8] = 0x80;            /* do not wait for CELL ID when doing autosearch */
1174        if (state->fe[0]->dtv_property_cache.delivery_system == SYS_DVBT)
1175                b[8] |= 1;
1176        dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_HEAD, b);
1177}
1178
1179static int dib9000_fw_get_channel(struct dvb_frontend *fe)
1180{
1181        struct dib9000_state *state = fe->demodulator_priv;
1182        struct dibDVBTChannel {
1183                s8 spectrum_inversion;
1184
1185                s8 nfft;
1186                s8 guard;
1187                s8 constellation;
1188
1189                s8 hrch;
1190                s8 alpha;
1191                s8 code_rate_hp;
1192                s8 code_rate_lp;
1193                s8 select_hp;
1194
1195                s8 intlv_native;
1196        };
1197        struct dibDVBTChannel *ch;
1198        int ret = 0;
1199
1200        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
1201                dprintk("could not get the lock\n");
1202                return -EINTR;
1203        }
1204        if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
1205                ret = -EIO;
1206                goto error;
1207        }
1208
1209        dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_UNION,
1210                        state->i2c_read_buffer, sizeof(struct dibDVBTChannel));
1211        ch = (struct dibDVBTChannel *)state->i2c_read_buffer;
1212
1213
1214        switch (ch->spectrum_inversion & 0x7) {
1215        case 1:
1216                state->fe[0]->dtv_property_cache.inversion = INVERSION_ON;
1217                break;
1218        case 0:
1219                state->fe[0]->dtv_property_cache.inversion = INVERSION_OFF;
1220                break;
1221        default:
1222        case -1:
1223                state->fe[0]->dtv_property_cache.inversion = INVERSION_AUTO;
1224                break;
1225        }
1226        switch (ch->nfft) {
1227        case 0:
1228                state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_2K;
1229                break;
1230        case 2:
1231                state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_4K;
1232                break;
1233        case 1:
1234                state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
1235                break;
1236        default:
1237        case -1:
1238                state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO;
1239                break;
1240        }
1241        switch (ch->guard) {
1242        case 0:
1243                state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_32;
1244                break;
1245        case 1:
1246                state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_16;
1247                break;
1248        case 2:
1249                state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
1250                break;
1251        case 3:
1252                state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_4;
1253                break;
1254        default:
1255        case -1:
1256                state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO;
1257                break;
1258        }
1259        switch (ch->constellation) {
1260        case 2:
1261                state->fe[0]->dtv_property_cache.modulation = QAM_64;
1262                break;
1263        case 1:
1264                state->fe[0]->dtv_property_cache.modulation = QAM_16;
1265                break;
1266        case 0:
1267                state->fe[0]->dtv_property_cache.modulation = QPSK;
1268                break;
1269        default:
1270        case -1:
1271                state->fe[0]->dtv_property_cache.modulation = QAM_AUTO;
1272                break;
1273        }
1274        switch (ch->hrch) {
1275        case 0:
1276                state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_NONE;
1277                break;
1278        case 1:
1279                state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_1;
1280                break;
1281        default:
1282        case -1:
1283                state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_AUTO;
1284                break;
1285        }
1286        switch (ch->code_rate_hp) {
1287        case 1:
1288                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_1_2;
1289                break;
1290        case 2:
1291                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_2_3;
1292                break;
1293        case 3:
1294                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_3_4;
1295                break;
1296        case 5:
1297                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_5_6;
1298                break;
1299        case 7:
1300                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_7_8;
1301                break;
1302        default:
1303        case -1:
1304                state->fe[0]->dtv_property_cache.code_rate_HP = FEC_AUTO;
1305                break;
1306        }
1307        switch (ch->code_rate_lp) {
1308        case 1:
1309                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_1_2;
1310                break;
1311        case 2:
1312                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_2_3;
1313                break;
1314        case 3:
1315                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_3_4;
1316                break;
1317        case 5:
1318                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_5_6;
1319                break;
1320        case 7:
1321                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_7_8;
1322                break;
1323        default:
1324        case -1:
1325                state->fe[0]->dtv_property_cache.code_rate_LP = FEC_AUTO;
1326                break;
1327        }
1328
1329error:
1330        mutex_unlock(&state->platform.risc.mem_mbx_lock);
1331        return ret;
1332}
1333
1334static int dib9000_fw_set_channel_union(struct dvb_frontend *fe)
1335{
1336        struct dib9000_state *state = fe->demodulator_priv;
1337        struct dibDVBTChannel {
1338                s8 spectrum_inversion;
1339
1340                s8 nfft;
1341                s8 guard;
1342                s8 constellation;
1343
1344                s8 hrch;
1345                s8 alpha;
1346                s8 code_rate_hp;
1347                s8 code_rate_lp;
1348                s8 select_hp;
1349
1350                s8 intlv_native;
1351        };
1352        struct dibDVBTChannel ch;
1353
1354        switch (state->fe[0]->dtv_property_cache.inversion) {
1355        case INVERSION_ON:
1356                ch.spectrum_inversion = 1;
1357                break;
1358        case INVERSION_OFF:
1359                ch.spectrum_inversion = 0;
1360                break;
1361        default:
1362        case INVERSION_AUTO:
1363                ch.spectrum_inversion = -1;
1364                break;
1365        }
1366        switch (state->fe[0]->dtv_property_cache.transmission_mode) {
1367        case TRANSMISSION_MODE_2K:
1368                ch.nfft = 0;
1369                break;
1370        case TRANSMISSION_MODE_4K:
1371                ch.nfft = 2;
1372                break;
1373        case TRANSMISSION_MODE_8K:
1374                ch.nfft = 1;
1375                break;
1376        default:
1377        case TRANSMISSION_MODE_AUTO:
1378                ch.nfft = 1;
1379                break;
1380        }
1381        switch (state->fe[0]->dtv_property_cache.guard_interval) {
1382        case GUARD_INTERVAL_1_32:
1383                ch.guard = 0;
1384                break;
1385        case GUARD_INTERVAL_1_16:
1386                ch.guard = 1;
1387                break;
1388        case GUARD_INTERVAL_1_8:
1389                ch.guard = 2;
1390                break;
1391        case GUARD_INTERVAL_1_4:
1392                ch.guard = 3;
1393                break;
1394        default:
1395        case GUARD_INTERVAL_AUTO:
1396                ch.guard = -1;
1397                break;
1398        }
1399        switch (state->fe[0]->dtv_property_cache.modulation) {
1400        case QAM_64:
1401                ch.constellation = 2;
1402                break;
1403        case QAM_16:
1404                ch.constellation = 1;
1405                break;
1406        case QPSK:
1407                ch.constellation = 0;
1408                break;
1409        default:
1410        case QAM_AUTO:
1411                ch.constellation = -1;
1412                break;
1413        }
1414        switch (state->fe[0]->dtv_property_cache.hierarchy) {
1415        case HIERARCHY_NONE:
1416                ch.hrch = 0;
1417                break;
1418        case HIERARCHY_1:
1419        case HIERARCHY_2:
1420        case HIERARCHY_4:
1421                ch.hrch = 1;
1422                break;
1423        default:
1424        case HIERARCHY_AUTO:
1425                ch.hrch = -1;
1426                break;
1427        }
1428        ch.alpha = 1;
1429        switch (state->fe[0]->dtv_property_cache.code_rate_HP) {
1430        case FEC_1_2:
1431                ch.code_rate_hp = 1;
1432                break;
1433        case FEC_2_3:
1434                ch.code_rate_hp = 2;
1435                break;
1436        case FEC_3_4:
1437                ch.code_rate_hp = 3;
1438                break;
1439        case FEC_5_6:
1440                ch.code_rate_hp = 5;
1441                break;
1442        case FEC_7_8:
1443                ch.code_rate_hp = 7;
1444                break;
1445        default:
1446        case FEC_AUTO:
1447                ch.code_rate_hp = -1;
1448                break;
1449        }
1450        switch (state->fe[0]->dtv_property_cache.code_rate_LP) {
1451        case FEC_1_2:
1452                ch.code_rate_lp = 1;
1453                break;
1454        case FEC_2_3:
1455                ch.code_rate_lp = 2;
1456                break;
1457        case FEC_3_4:
1458                ch.code_rate_lp = 3;
1459                break;
1460        case FEC_5_6:
1461                ch.code_rate_lp = 5;
1462                break;
1463        case FEC_7_8:
1464                ch.code_rate_lp = 7;
1465                break;
1466        default:
1467        case FEC_AUTO:
1468                ch.code_rate_lp = -1;
1469                break;
1470        }
1471        ch.select_hp = 1;
1472        ch.intlv_native = 1;
1473
1474        dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_UNION, (u8 *) &ch);
1475
1476        return 0;
1477}
1478
1479static int dib9000_fw_tune(struct dvb_frontend *fe)
1480{
1481        struct dib9000_state *state = fe->demodulator_priv;
1482        int ret = 10, search = state->channel_status.status == CHANNEL_STATUS_PARAMETERS_UNKNOWN;
1483        s8 i;
1484
1485        switch (state->tune_state) {
1486        case CT_DEMOD_START:
1487                dib9000_fw_set_channel_head(state);
1488
1489                /* write the channel context - a channel is initialized to 0, so it is OK */
1490                dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_CONTEXT, (u8 *) fe_info);
1491                dib9000_risc_mem_write(state, FE_MM_W_FE_INFO, (u8 *) fe_info);
1492
1493                if (search)
1494                        dib9000_mbx_send(state, OUT_MSG_FE_CHANNEL_SEARCH, NULL, 0);
1495                else {
1496                        dib9000_fw_set_channel_union(fe);
1497                        dib9000_mbx_send(state, OUT_MSG_FE_CHANNEL_TUNE, NULL, 0);
1498                }
1499                state->tune_state = CT_DEMOD_STEP_1;
1500                break;
1501        case CT_DEMOD_STEP_1:
1502                if (search)
1503                        dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_SEARCH_STATE, state->i2c_read_buffer, 1);
1504                else
1505                        dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_TUNE_STATE, state->i2c_read_buffer, 1);
1506                i = (s8)state->i2c_read_buffer[0];
1507                switch (i) {    /* something happened */
1508                case 0:
1509                        break;
1510                case -2:        /* tps locks are "slower" than MPEG locks -> even in autosearch data is OK here */
1511                        if (search)
1512                                state->status = FE_STATUS_DEMOD_SUCCESS;
1513                        else {
1514                                state->tune_state = CT_DEMOD_STOP;
1515                                state->status = FE_STATUS_LOCKED;
1516                        }
1517                        break;
1518                default:
1519                        state->status = FE_STATUS_TUNE_FAILED;
1520                        state->tune_state = CT_DEMOD_STOP;
1521                        break;
1522                }
1523                break;
1524        default:
1525                ret = FE_CALLBACK_TIME_NEVER;
1526                break;
1527        }
1528
1529        return ret;
1530}
1531
1532static int dib9000_fw_set_diversity_in(struct dvb_frontend *fe, int onoff)
1533{
1534        struct dib9000_state *state = fe->demodulator_priv;
1535        u16 mode = (u16) onoff;
1536        return dib9000_mbx_send(state, OUT_MSG_ENABLE_DIVERSITY, &mode, 1);
1537}
1538
1539static int dib9000_fw_set_output_mode(struct dvb_frontend *fe, int mode)
1540{
1541        struct dib9000_state *state = fe->demodulator_priv;
1542        u16 outreg, smo_mode;
1543
1544        dprintk("setting output mode for demod %p to %d\n", fe, mode);
1545
1546        switch (mode) {
1547        case OUTMODE_MPEG2_PAR_GATED_CLK:
1548                outreg = (1 << 10);     /* 0x0400 */
1549                break;
1550        case OUTMODE_MPEG2_PAR_CONT_CLK:
1551                outreg = (1 << 10) | (1 << 6);  /* 0x0440 */
1552                break;
1553        case OUTMODE_MPEG2_SERIAL:
1554                outreg = (1 << 10) | (2 << 6) | (0 << 1);       /* 0x0482 */
1555                break;
1556        case OUTMODE_DIVERSITY:
1557                outreg = (1 << 10) | (4 << 6);  /* 0x0500 */
1558                break;
1559        case OUTMODE_MPEG2_FIFO:
1560                outreg = (1 << 10) | (5 << 6);
1561                break;
1562        case OUTMODE_HIGH_Z:
1563                outreg = 0;
1564                break;
1565        default:
1566                dprintk("Unhandled output_mode passed to be set for demod %p\n", &state->fe[0]);
1567                return -EINVAL;
1568        }
1569
1570        dib9000_write_word(state, 1795, outreg);
1571
1572        switch (mode) {
1573        case OUTMODE_MPEG2_PAR_GATED_CLK:
1574        case OUTMODE_MPEG2_PAR_CONT_CLK:
1575        case OUTMODE_MPEG2_SERIAL:
1576        case OUTMODE_MPEG2_FIFO:
1577                smo_mode = (dib9000_read_word(state, 295) & 0x0010) | (1 << 1);
1578                if (state->chip.d9.cfg.output_mpeg2_in_188_bytes)
1579                        smo_mode |= (1 << 5);
1580                dib9000_write_word(state, 295, smo_mode);
1581                break;
1582        }
1583
1584        outreg = to_fw_output_mode(mode);
1585        return dib9000_mbx_send(state, OUT_MSG_SET_OUTPUT_MODE, &outreg, 1);
1586}
1587
1588static int dib9000_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
1589{
1590        struct dib9000_state *state = i2c_get_adapdata(i2c_adap);
1591        u16 i, len, t, index_msg;
1592
1593        for (index_msg = 0; index_msg < num; index_msg++) {
1594                if (msg[index_msg].flags & I2C_M_RD) {  /* read */
1595                        len = msg[index_msg].len;
1596                        if (len > 16)
1597                                len = 16;
1598
1599                        if (dib9000_read_word(state, 790) != 0)
1600                                dprintk("TunerITF: read busy\n");
1601
1602                        dib9000_write_word(state, 784, (u16) (msg[index_msg].addr));
1603                        dib9000_write_word(state, 787, (len / 2) - 1);
1604                        dib9000_write_word(state, 786, 1);      /* start read */
1605
1606                        i = 1000;
1607                        while (dib9000_read_word(state, 790) != (len / 2) && i)
1608                                i--;
1609
1610                        if (i == 0)
1611                                dprintk("TunerITF: read failed\n");
1612
1613                        for (i = 0; i < len; i += 2) {
1614                                t = dib9000_read_word(state, 785);
1615                                msg[index_msg].buf[i] = (t >> 8) & 0xff;
1616                                msg[index_msg].buf[i + 1] = (t) & 0xff;
1617                        }
1618                        if (dib9000_read_word(state, 790) != 0)
1619                                dprintk("TunerITF: read more data than expected\n");
1620                } else {
1621                        i = 1000;
1622                        while (dib9000_read_word(state, 789) && i)
1623                                i--;
1624                        if (i == 0)
1625                                dprintk("TunerITF: write busy\n");
1626
1627                        len = msg[index_msg].len;
1628                        if (len > 16)
1629                                len = 16;
1630
1631                        for (i = 0; i < len; i += 2)
1632                                dib9000_write_word(state, 785, (msg[index_msg].buf[i] << 8) | msg[index_msg].buf[i + 1]);
1633                        dib9000_write_word(state, 784, (u16) msg[index_msg].addr);
1634                        dib9000_write_word(state, 787, (len / 2) - 1);
1635                        dib9000_write_word(state, 786, 0);      /* start write */
1636
1637                        i = 1000;
1638                        while (dib9000_read_word(state, 791) > 0 && i)
1639                                i--;
1640                        if (i == 0)
1641                                dprintk("TunerITF: write failed\n");
1642                }
1643        }
1644        return num;
1645}
1646
1647int dib9000_fw_set_component_bus_speed(struct dvb_frontend *fe, u16 speed)
1648{
1649        struct dib9000_state *state = fe->demodulator_priv;
1650
1651        state->component_bus_speed = speed;
1652        return 0;
1653}
1654EXPORT_SYMBOL(dib9000_fw_set_component_bus_speed);
1655
1656static int dib9000_fw_component_bus_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
1657{
1658        struct dib9000_state *state = i2c_get_adapdata(i2c_adap);
1659        u8 type = 0;            /* I2C */
1660        u8 port = DIBX000_I2C_INTERFACE_GPIO_3_4;
1661        u16 scl = state->component_bus_speed;   /* SCL frequency */
1662        struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[FE_MM_RW_COMPONENT_ACCESS_BUFFER];
1663        u8 p[13] = { 0 };
1664
1665        p[0] = type;
1666        p[1] = port;
1667        p[2] = msg[0].addr << 1;
1668
1669        p[3] = (u8) scl & 0xff; /* scl */
1670        p[4] = (u8) (scl >> 8);
1671
1672        p[7] = 0;
1673        p[8] = 0;
1674
1675        p[9] = (u8) (msg[0].len);
1676        p[10] = (u8) (msg[0].len >> 8);
1677        if ((num > 1) && (msg[1].flags & I2C_M_RD)) {
1678                p[11] = (u8) (msg[1].len);
1679                p[12] = (u8) (msg[1].len >> 8);
1680        } else {
1681                p[11] = 0;
1682                p[12] = 0;
1683        }
1684
1685        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
1686                dprintk("could not get the lock\n");
1687                return 0;
1688        }
1689
1690        dib9000_risc_mem_write(state, FE_MM_W_COMPONENT_ACCESS, p);
1691
1692        {                       /* write-part */
1693                dib9000_risc_mem_setup_cmd(state, m->addr, msg[0].len, 0);
1694                dib9000_risc_mem_write_chunks(state, msg[0].buf, msg[0].len);
1695        }
1696
1697        /* do the transaction */
1698        if (dib9000_fw_memmbx_sync(state, FE_SYNC_COMPONENT_ACCESS) < 0) {
1699                mutex_unlock(&state->platform.risc.mem_mbx_lock);
1700                return 0;
1701        }
1702
1703        /* read back any possible result */
1704        if ((num > 1) && (msg[1].flags & I2C_M_RD))
1705                dib9000_risc_mem_read(state, FE_MM_RW_COMPONENT_ACCESS_BUFFER, msg[1].buf, msg[1].len);
1706
1707        mutex_unlock(&state->platform.risc.mem_mbx_lock);
1708
1709        return num;
1710}
1711
1712static u32 dib9000_i2c_func(struct i2c_adapter *adapter)
1713{
1714        return I2C_FUNC_I2C;
1715}
1716
1717static const struct i2c_algorithm dib9000_tuner_algo = {
1718        .master_xfer = dib9000_tuner_xfer,
1719        .functionality = dib9000_i2c_func,
1720};
1721
1722static const struct i2c_algorithm dib9000_component_bus_algo = {
1723        .master_xfer = dib9000_fw_component_bus_xfer,
1724        .functionality = dib9000_i2c_func,
1725};
1726
1727struct i2c_adapter *dib9000_get_tuner_interface(struct dvb_frontend *fe)
1728{
1729        struct dib9000_state *st = fe->demodulator_priv;
1730        return &st->tuner_adap;
1731}
1732EXPORT_SYMBOL(dib9000_get_tuner_interface);
1733
1734struct i2c_adapter *dib9000_get_component_bus_interface(struct dvb_frontend *fe)
1735{
1736        struct dib9000_state *st = fe->demodulator_priv;
1737        return &st->component_bus;
1738}
1739EXPORT_SYMBOL(dib9000_get_component_bus_interface);
1740
1741struct i2c_adapter *dib9000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating)
1742{
1743        struct dib9000_state *st = fe->demodulator_priv;
1744        return dibx000_get_i2c_adapter(&st->i2c_master, intf, gating);
1745}
1746EXPORT_SYMBOL(dib9000_get_i2c_master);
1747
1748int dib9000_set_i2c_adapter(struct dvb_frontend *fe, struct i2c_adapter *i2c)
1749{
1750        struct dib9000_state *st = fe->demodulator_priv;
1751
1752        st->i2c.i2c_adap = i2c;
1753        return 0;
1754}
1755EXPORT_SYMBOL(dib9000_set_i2c_adapter);
1756
1757static int dib9000_cfg_gpio(struct dib9000_state *st, u8 num, u8 dir, u8 val)
1758{
1759        st->gpio_dir = dib9000_read_word(st, 773);
1760        st->gpio_dir &= ~(1 << num);    /* reset the direction bit */
1761        st->gpio_dir |= (dir & 0x1) << num;     /* set the new direction */
1762        dib9000_write_word(st, 773, st->gpio_dir);
1763
1764        st->gpio_val = dib9000_read_word(st, 774);
1765        st->gpio_val &= ~(1 << num);    /* reset the direction bit */
1766        st->gpio_val |= (val & 0x01) << num;    /* set the new value */
1767        dib9000_write_word(st, 774, st->gpio_val);
1768
1769        dprintk("gpio dir: %04x: gpio val: %04x\n", st->gpio_dir, st->gpio_val);
1770
1771        return 0;
1772}
1773
1774int dib9000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val)
1775{
1776        struct dib9000_state *state = fe->demodulator_priv;
1777        return dib9000_cfg_gpio(state, num, dir, val);
1778}
1779EXPORT_SYMBOL(dib9000_set_gpio);
1780
1781int dib9000_fw_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
1782{
1783        struct dib9000_state *state = fe->demodulator_priv;
1784        u16 val;
1785        int ret;
1786
1787        if ((state->pid_ctrl_index != -2) && (state->pid_ctrl_index < 9)) {
1788                /* postpone the pid filtering cmd */
1789                dprintk("pid filter cmd postpone\n");
1790                state->pid_ctrl_index++;
1791                state->pid_ctrl[state->pid_ctrl_index].cmd = DIB9000_PID_FILTER_CTRL;
1792                state->pid_ctrl[state->pid_ctrl_index].onoff = onoff;
1793                return 0;
1794        }
1795
1796        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
1797                dprintk("could not get the lock\n");
1798                return -EINTR;
1799        }
1800
1801        val = dib9000_read_word(state, 294 + 1) & 0xffef;
1802        val |= (onoff & 0x1) << 4;
1803
1804        dprintk("PID filter enabled %d\n", onoff);
1805        ret = dib9000_write_word(state, 294 + 1, val);
1806        mutex_unlock(&state->demod_lock);
1807        return ret;
1808
1809}
1810EXPORT_SYMBOL(dib9000_fw_pid_filter_ctrl);
1811
1812int dib9000_fw_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
1813{
1814        struct dib9000_state *state = fe->demodulator_priv;
1815        int ret;
1816
1817        if (state->pid_ctrl_index != -2) {
1818                /* postpone the pid filtering cmd */
1819                dprintk("pid filter postpone\n");
1820                if (state->pid_ctrl_index < 9) {
1821                        state->pid_ctrl_index++;
1822                        state->pid_ctrl[state->pid_ctrl_index].cmd = DIB9000_PID_FILTER;
1823                        state->pid_ctrl[state->pid_ctrl_index].id = id;
1824                        state->pid_ctrl[state->pid_ctrl_index].pid = pid;
1825                        state->pid_ctrl[state->pid_ctrl_index].onoff = onoff;
1826                } else
1827                        dprintk("can not add any more pid ctrl cmd\n");
1828                return 0;
1829        }
1830
1831        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
1832                dprintk("could not get the lock\n");
1833                return -EINTR;
1834        }
1835        dprintk("Index %x, PID %d, OnOff %d\n", id, pid, onoff);
1836        ret = dib9000_write_word(state, 300 + 1 + id,
1837                        onoff ? (1 << 13) | pid : 0);
1838        mutex_unlock(&state->demod_lock);
1839        return ret;
1840}
1841EXPORT_SYMBOL(dib9000_fw_pid_filter);
1842
1843int dib9000_firmware_post_pll_init(struct dvb_frontend *fe)
1844{
1845        struct dib9000_state *state = fe->demodulator_priv;
1846        return dib9000_fw_init(state);
1847}
1848EXPORT_SYMBOL(dib9000_firmware_post_pll_init);
1849
1850static void dib9000_release(struct dvb_frontend *demod)
1851{
1852        struct dib9000_state *st = demod->demodulator_priv;
1853        u8 index_frontend;
1854
1855        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (st->fe[index_frontend] != NULL); index_frontend++)
1856                dvb_frontend_detach(st->fe[index_frontend]);
1857
1858        dibx000_exit_i2c_master(&st->i2c_master);
1859
1860        i2c_del_adapter(&st->tuner_adap);
1861        i2c_del_adapter(&st->component_bus);
1862        kfree(st->fe[0]);
1863        kfree(st);
1864}
1865
1866static int dib9000_wakeup(struct dvb_frontend *fe)
1867{
1868        return 0;
1869}
1870
1871static int dib9000_sleep(struct dvb_frontend *fe)
1872{
1873        struct dib9000_state *state = fe->demodulator_priv;
1874        u8 index_frontend;
1875        int ret = 0;
1876
1877        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
1878                dprintk("could not get the lock\n");
1879                return -EINTR;
1880        }
1881        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
1882                ret = state->fe[index_frontend]->ops.sleep(state->fe[index_frontend]);
1883                if (ret < 0)
1884                        goto error;
1885        }
1886        ret = dib9000_mbx_send(state, OUT_MSG_FE_SLEEP, NULL, 0);
1887
1888error:
1889        mutex_unlock(&state->demod_lock);
1890        return ret;
1891}
1892
1893static int dib9000_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune)
1894{
1895        tune->min_delay_ms = 1000;
1896        return 0;
1897}
1898
1899static int dib9000_get_frontend(struct dvb_frontend *fe,
1900                                struct dtv_frontend_properties *c)
1901{
1902        struct dib9000_state *state = fe->demodulator_priv;
1903        u8 index_frontend, sub_index_frontend;
1904        enum fe_status stat;
1905        int ret = 0;
1906
1907        if (state->get_frontend_internal == 0) {
1908                if (mutex_lock_interruptible(&state->demod_lock) < 0) {
1909                        dprintk("could not get the lock\n");
1910                        return -EINTR;
1911                }
1912        }
1913
1914        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
1915                state->fe[index_frontend]->ops.read_status(state->fe[index_frontend], &stat);
1916                if (stat & FE_HAS_SYNC) {
1917                        dprintk("TPS lock on the slave%i\n", index_frontend);
1918
1919                        /* synchronize the cache with the other frontends */
1920                        state->fe[index_frontend]->ops.get_frontend(state->fe[index_frontend], c);
1921                        for (sub_index_frontend = 0; (sub_index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[sub_index_frontend] != NULL);
1922                             sub_index_frontend++) {
1923                                if (sub_index_frontend != index_frontend) {
1924                                        state->fe[sub_index_frontend]->dtv_property_cache.modulation =
1925                                            state->fe[index_frontend]->dtv_property_cache.modulation;
1926                                        state->fe[sub_index_frontend]->dtv_property_cache.inversion =
1927                                            state->fe[index_frontend]->dtv_property_cache.inversion;
1928                                        state->fe[sub_index_frontend]->dtv_property_cache.transmission_mode =
1929                                            state->fe[index_frontend]->dtv_property_cache.transmission_mode;
1930                                        state->fe[sub_index_frontend]->dtv_property_cache.guard_interval =
1931                                            state->fe[index_frontend]->dtv_property_cache.guard_interval;
1932                                        state->fe[sub_index_frontend]->dtv_property_cache.hierarchy =
1933                                            state->fe[index_frontend]->dtv_property_cache.hierarchy;
1934                                        state->fe[sub_index_frontend]->dtv_property_cache.code_rate_HP =
1935                                            state->fe[index_frontend]->dtv_property_cache.code_rate_HP;
1936                                        state->fe[sub_index_frontend]->dtv_property_cache.code_rate_LP =
1937                                            state->fe[index_frontend]->dtv_property_cache.code_rate_LP;
1938                                        state->fe[sub_index_frontend]->dtv_property_cache.rolloff =
1939                                            state->fe[index_frontend]->dtv_property_cache.rolloff;
1940                                }
1941                        }
1942                        ret = 0;
1943                        goto return_value;
1944                }
1945        }
1946
1947        /* get the channel from master chip */
1948        ret = dib9000_fw_get_channel(fe);
1949        if (ret != 0)
1950                goto return_value;
1951
1952        /* synchronize the cache with the other frontends */
1953        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
1954                state->fe[index_frontend]->dtv_property_cache.inversion = c->inversion;
1955                state->fe[index_frontend]->dtv_property_cache.transmission_mode = c->transmission_mode;
1956                state->fe[index_frontend]->dtv_property_cache.guard_interval = c->guard_interval;
1957                state->fe[index_frontend]->dtv_property_cache.modulation = c->modulation;
1958                state->fe[index_frontend]->dtv_property_cache.hierarchy = c->hierarchy;
1959                state->fe[index_frontend]->dtv_property_cache.code_rate_HP = c->code_rate_HP;
1960                state->fe[index_frontend]->dtv_property_cache.code_rate_LP = c->code_rate_LP;
1961                state->fe[index_frontend]->dtv_property_cache.rolloff = c->rolloff;
1962        }
1963        ret = 0;
1964
1965return_value:
1966        if (state->get_frontend_internal == 0)
1967                mutex_unlock(&state->demod_lock);
1968        return ret;
1969}
1970
1971static int dib9000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state)
1972{
1973        struct dib9000_state *state = fe->demodulator_priv;
1974        state->tune_state = tune_state;
1975        if (tune_state == CT_DEMOD_START)
1976                state->status = FE_STATUS_TUNE_PENDING;
1977
1978        return 0;
1979}
1980
1981static u32 dib9000_get_status(struct dvb_frontend *fe)
1982{
1983        struct dib9000_state *state = fe->demodulator_priv;
1984        return state->status;
1985}
1986
1987static int dib9000_set_channel_status(struct dvb_frontend *fe, struct dvb_frontend_parametersContext *channel_status)
1988{
1989        struct dib9000_state *state = fe->demodulator_priv;
1990
1991        memcpy(&state->channel_status, channel_status, sizeof(struct dvb_frontend_parametersContext));
1992        return 0;
1993}
1994
1995static int dib9000_set_frontend(struct dvb_frontend *fe)
1996{
1997        struct dib9000_state *state = fe->demodulator_priv;
1998        int sleep_time, sleep_time_slave;
1999        u32 frontend_status;
2000        u8 nbr_pending, exit_condition, index_frontend, index_frontend_success;
2001        struct dvb_frontend_parametersContext channel_status;
2002
2003        /* check that the correct parameters are set */
2004        if (state->fe[0]->dtv_property_cache.frequency == 0) {
2005                dprintk("dib9000: must specify frequency\n");
2006                return 0;
2007        }
2008
2009        if (state->fe[0]->dtv_property_cache.bandwidth_hz == 0) {
2010                dprintk("dib9000: must specify bandwidth\n");
2011                return 0;
2012        }
2013
2014        state->pid_ctrl_index = -1; /* postpone the pid filtering cmd */
2015        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2016                dprintk("could not get the lock\n");
2017                return 0;
2018        }
2019
2020        fe->dtv_property_cache.delivery_system = SYS_DVBT;
2021
2022        /* set the master status */
2023        if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO ||
2024            state->fe[0]->dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO ||
2025            state->fe[0]->dtv_property_cache.modulation == QAM_AUTO ||
2026            state->fe[0]->dtv_property_cache.code_rate_HP == FEC_AUTO) {
2027                /* no channel specified, autosearch the channel */
2028                state->channel_status.status = CHANNEL_STATUS_PARAMETERS_UNKNOWN;
2029        } else
2030                state->channel_status.status = CHANNEL_STATUS_PARAMETERS_SET;
2031
2032        /* set mode and status for the different frontends */
2033        for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2034                dib9000_fw_set_diversity_in(state->fe[index_frontend], 1);
2035
2036                /* synchronization of the cache */
2037                memcpy(&state->fe[index_frontend]->dtv_property_cache, &fe->dtv_property_cache, sizeof(struct dtv_frontend_properties));
2038
2039                state->fe[index_frontend]->dtv_property_cache.delivery_system = SYS_DVBT;
2040                dib9000_fw_set_output_mode(state->fe[index_frontend], OUTMODE_HIGH_Z);
2041
2042                dib9000_set_channel_status(state->fe[index_frontend], &state->channel_status);
2043                dib9000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
2044        }
2045
2046        /* actual tune */
2047        exit_condition = 0;     /* 0: tune pending; 1: tune failed; 2:tune success */
2048        index_frontend_success = 0;
2049        do {
2050                sleep_time = dib9000_fw_tune(state->fe[0]);
2051                for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2052                        sleep_time_slave = dib9000_fw_tune(state->fe[index_frontend]);
2053                        if (sleep_time == FE_CALLBACK_TIME_NEVER)
2054                                sleep_time = sleep_time_slave;
2055                        else if ((sleep_time_slave != FE_CALLBACK_TIME_NEVER) && (sleep_time_slave > sleep_time))
2056                                sleep_time = sleep_time_slave;
2057                }
2058                if (sleep_time != FE_CALLBACK_TIME_NEVER)
2059                        msleep(sleep_time / 10);
2060                else
2061                        break;
2062
2063                nbr_pending = 0;
2064                exit_condition = 0;
2065                index_frontend_success = 0;
2066                for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2067                        frontend_status = -dib9000_get_status(state->fe[index_frontend]);
2068                        if (frontend_status > -FE_STATUS_TUNE_PENDING) {
2069                                exit_condition = 2;     /* tune success */
2070                                index_frontend_success = index_frontend;
2071                                break;
2072                        }
2073                        if (frontend_status == -FE_STATUS_TUNE_PENDING)
2074                                nbr_pending++;  /* some frontends are still tuning */
2075                }
2076                if ((exit_condition != 2) && (nbr_pending == 0))
2077                        exit_condition = 1;     /* if all tune are done and no success, exit: tune failed */
2078
2079        } while (exit_condition == 0);
2080
2081        /* check the tune result */
2082        if (exit_condition == 1) {      /* tune failed */
2083                dprintk("tune failed\n");
2084                mutex_unlock(&state->demod_lock);
2085                /* tune failed; put all the pid filtering cmd to junk */
2086                state->pid_ctrl_index = -1;
2087                return 0;
2088        }
2089
2090        dprintk("tune success on frontend%i\n", index_frontend_success);
2091
2092        /* synchronize all the channel cache */
2093        state->get_frontend_internal = 1;
2094        dib9000_get_frontend(state->fe[0], &state->fe[0]->dtv_property_cache);
2095        state->get_frontend_internal = 0;
2096
2097        /* retune the other frontends with the found channel */
2098        channel_status.status = CHANNEL_STATUS_PARAMETERS_SET;
2099        for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2100                /* only retune the frontends which was not tuned success */
2101                if (index_frontend != index_frontend_success) {
2102                        dib9000_set_channel_status(state->fe[index_frontend], &channel_status);
2103                        dib9000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
2104                }
2105        }
2106        do {
2107                sleep_time = FE_CALLBACK_TIME_NEVER;
2108                for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2109                        if (index_frontend != index_frontend_success) {
2110                                sleep_time_slave = dib9000_fw_tune(state->fe[index_frontend]);
2111                                if (sleep_time == FE_CALLBACK_TIME_NEVER)
2112                                        sleep_time = sleep_time_slave;
2113                                else if ((sleep_time_slave != FE_CALLBACK_TIME_NEVER) && (sleep_time_slave > sleep_time))
2114                                        sleep_time = sleep_time_slave;
2115                        }
2116                }
2117                if (sleep_time != FE_CALLBACK_TIME_NEVER)
2118                        msleep(sleep_time / 10);
2119                else
2120                        break;
2121
2122                nbr_pending = 0;
2123                for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2124                        if (index_frontend != index_frontend_success) {
2125                                frontend_status = -dib9000_get_status(state->fe[index_frontend]);
2126                                if ((index_frontend != index_frontend_success) && (frontend_status == -FE_STATUS_TUNE_PENDING))
2127                                        nbr_pending++;  /* some frontends are still tuning */
2128                        }
2129                }
2130        } while (nbr_pending != 0);
2131
2132        /* set the output mode */
2133        dib9000_fw_set_output_mode(state->fe[0], state->chip.d9.cfg.output_mode);
2134        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
2135                dib9000_fw_set_output_mode(state->fe[index_frontend], OUTMODE_DIVERSITY);
2136
2137        /* turn off the diversity for the last frontend */
2138        dib9000_fw_set_diversity_in(state->fe[index_frontend - 1], 0);
2139
2140        mutex_unlock(&state->demod_lock);
2141        if (state->pid_ctrl_index >= 0) {
2142                u8 index_pid_filter_cmd;
2143                u8 pid_ctrl_index = state->pid_ctrl_index;
2144
2145                state->pid_ctrl_index = -2;
2146                for (index_pid_filter_cmd = 0;
2147                                index_pid_filter_cmd <= pid_ctrl_index;
2148                                index_pid_filter_cmd++) {
2149                        if (state->pid_ctrl[index_pid_filter_cmd].cmd == DIB9000_PID_FILTER_CTRL)
2150                                dib9000_fw_pid_filter_ctrl(state->fe[0],
2151                                                state->pid_ctrl[index_pid_filter_cmd].onoff);
2152                        else if (state->pid_ctrl[index_pid_filter_cmd].cmd == DIB9000_PID_FILTER)
2153                                dib9000_fw_pid_filter(state->fe[0],
2154                                                state->pid_ctrl[index_pid_filter_cmd].id,
2155                                                state->pid_ctrl[index_pid_filter_cmd].pid,
2156                                                state->pid_ctrl[index_pid_filter_cmd].onoff);
2157                }
2158        }
2159        /* do not postpone any more the pid filtering */
2160        state->pid_ctrl_index = -2;
2161
2162        return 0;
2163}
2164
2165static u16 dib9000_read_lock(struct dvb_frontend *fe)
2166{
2167        struct dib9000_state *state = fe->demodulator_priv;
2168
2169        return dib9000_read_word(state, 535);
2170}
2171
2172static int dib9000_read_status(struct dvb_frontend *fe, enum fe_status *stat)
2173{
2174        struct dib9000_state *state = fe->demodulator_priv;
2175        u8 index_frontend;
2176        u16 lock = 0, lock_slave = 0;
2177
2178        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2179                dprintk("could not get the lock\n");
2180                return -EINTR;
2181        }
2182        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
2183                lock_slave |= dib9000_read_lock(state->fe[index_frontend]);
2184
2185        lock = dib9000_read_word(state, 535);
2186
2187        *stat = 0;
2188
2189        if ((lock & 0x8000) || (lock_slave & 0x8000))
2190                *stat |= FE_HAS_SIGNAL;
2191        if ((lock & 0x3000) || (lock_slave & 0x3000))
2192                *stat |= FE_HAS_CARRIER;
2193        if ((lock & 0x0100) || (lock_slave & 0x0100))
2194                *stat |= FE_HAS_VITERBI;
2195        if (((lock & 0x0038) == 0x38) || ((lock_slave & 0x0038) == 0x38))
2196                *stat |= FE_HAS_SYNC;
2197        if ((lock & 0x0008) || (lock_slave & 0x0008))
2198                *stat |= FE_HAS_LOCK;
2199
2200        mutex_unlock(&state->demod_lock);
2201
2202        return 0;
2203}
2204
2205static int dib9000_read_ber(struct dvb_frontend *fe, u32 * ber)
2206{
2207        struct dib9000_state *state = fe->demodulator_priv;
2208        u16 *c;
2209        int ret = 0;
2210
2211        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2212                dprintk("could not get the lock\n");
2213                return -EINTR;
2214        }
2215        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
2216                dprintk("could not get the lock\n");
2217                ret = -EINTR;
2218                goto error;
2219        }
2220        if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
2221                mutex_unlock(&state->platform.risc.mem_mbx_lock);
2222                ret = -EIO;
2223                goto error;
2224        }
2225        dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR,
2226                        state->i2c_read_buffer, 16 * 2);
2227        mutex_unlock(&state->platform.risc.mem_mbx_lock);
2228
2229        c = (u16 *)state->i2c_read_buffer;
2230
2231        *ber = c[10] << 16 | c[11];
2232
2233error:
2234        mutex_unlock(&state->demod_lock);
2235        return ret;
2236}
2237
2238static int dib9000_read_signal_strength(struct dvb_frontend *fe, u16 * strength)
2239{
2240        struct dib9000_state *state = fe->demodulator_priv;
2241        u8 index_frontend;
2242        u16 *c = (u16 *)state->i2c_read_buffer;
2243        u16 val;
2244        int ret = 0;
2245
2246        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2247                dprintk("could not get the lock\n");
2248                return -EINTR;
2249        }
2250        *strength = 0;
2251        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
2252                state->fe[index_frontend]->ops.read_signal_strength(state->fe[index_frontend], &val);
2253                if (val > 65535 - *strength)
2254                        *strength = 65535;
2255                else
2256                        *strength += val;
2257        }
2258
2259        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
2260                dprintk("could not get the lock\n");
2261                ret = -EINTR;
2262                goto error;
2263        }
2264        if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
2265                mutex_unlock(&state->platform.risc.mem_mbx_lock);
2266                ret = -EIO;
2267                goto error;
2268        }
2269        dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2);
2270        mutex_unlock(&state->platform.risc.mem_mbx_lock);
2271
2272        val = 65535 - c[4];
2273        if (val > 65535 - *strength)
2274                *strength = 65535;
2275        else
2276                *strength += val;
2277
2278error:
2279        mutex_unlock(&state->demod_lock);
2280        return ret;
2281}
2282
2283static u32 dib9000_get_snr(struct dvb_frontend *fe)
2284{
2285        struct dib9000_state *state = fe->demodulator_priv;
2286        u16 *c = (u16 *)state->i2c_read_buffer;
2287        u32 n, s, exp;
2288        u16 val;
2289
2290        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
2291                dprintk("could not get the lock\n");
2292                return 0;
2293        }
2294        if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
2295                mutex_unlock(&state->platform.risc.mem_mbx_lock);
2296                return 0;
2297        }
2298        dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2);
2299        mutex_unlock(&state->platform.risc.mem_mbx_lock);
2300
2301        val = c[7];
2302        n = (val >> 4) & 0xff;
2303        exp = ((val & 0xf) << 2);
2304        val = c[8];
2305        exp += ((val >> 14) & 0x3);
2306        if ((exp & 0x20) != 0)
2307                exp -= 0x40;
2308        n <<= exp + 16;
2309
2310        s = (val >> 6) & 0xFF;
2311        exp = (val & 0x3F);
2312        if ((exp & 0x20) != 0)
2313                exp -= 0x40;
2314        s <<= exp + 16;
2315
2316        if (n > 0) {
2317                u32 t = (s / n) << 16;
2318                return t + ((s << 16) - n * t) / n;
2319        }
2320        return 0xffffffff;
2321}
2322
2323static int dib9000_read_snr(struct dvb_frontend *fe, u16 * snr)
2324{
2325        struct dib9000_state *state = fe->demodulator_priv;
2326        u8 index_frontend;
2327        u32 snr_master;
2328
2329        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2330                dprintk("could not get the lock\n");
2331                return -EINTR;
2332        }
2333        snr_master = dib9000_get_snr(fe);
2334        for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
2335                snr_master += dib9000_get_snr(state->fe[index_frontend]);
2336
2337        if ((snr_master >> 16) != 0) {
2338                snr_master = 10 * intlog10(snr_master >> 16);
2339                *snr = snr_master / ((1 << 24) / 10);
2340        } else
2341                *snr = 0;
2342
2343        mutex_unlock(&state->demod_lock);
2344
2345        return 0;
2346}
2347
2348static int dib9000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
2349{
2350        struct dib9000_state *state = fe->demodulator_priv;
2351        u16 *c = (u16 *)state->i2c_read_buffer;
2352        int ret = 0;
2353
2354        if (mutex_lock_interruptible(&state->demod_lock) < 0) {
2355                dprintk("could not get the lock\n");
2356                return -EINTR;
2357        }
2358        if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) {
2359                dprintk("could not get the lock\n");
2360                ret = -EINTR;
2361                goto error;
2362        }
2363        if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
2364                mutex_unlock(&state->platform.risc.mem_mbx_lock);
2365                ret = -EIO;
2366                goto error;
2367        }
2368        dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2);
2369        mutex_unlock(&state->platform.risc.mem_mbx_lock);
2370
2371        *unc = c[12];
2372
2373error:
2374        mutex_unlock(&state->demod_lock);
2375        return ret;
2376}
2377
2378int dib9000_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, u8 first_addr)
2379{
2380        int k = 0, ret = 0;
2381        u8 new_addr = 0;
2382        struct i2c_device client = {.i2c_adap = i2c };
2383
2384        client.i2c_write_buffer = kzalloc(4, GFP_KERNEL);
2385        if (!client.i2c_write_buffer) {
2386                dprintk("%s: not enough memory\n", __func__);
2387                return -ENOMEM;
2388        }
2389        client.i2c_read_buffer = kzalloc(4, GFP_KERNEL);
2390        if (!client.i2c_read_buffer) {
2391                dprintk("%s: not enough memory\n", __func__);
2392                ret = -ENOMEM;
2393                goto error_memory;
2394        }
2395
2396        client.i2c_addr = default_addr + 16;
2397        dib9000_i2c_write16(&client, 1796, 0x0);
2398
2399        for (k = no_of_demods - 1; k >= 0; k--) {
2400                /* designated i2c address */
2401                new_addr = first_addr + (k << 1);
2402                client.i2c_addr = default_addr;
2403
2404                dib9000_i2c_write16(&client, 1817, 3);
2405                dib9000_i2c_write16(&client, 1796, 0);
2406                dib9000_i2c_write16(&client, 1227, 1);
2407                dib9000_i2c_write16(&client, 1227, 0);
2408
2409                client.i2c_addr = new_addr;
2410                dib9000_i2c_write16(&client, 1817, 3);
2411                dib9000_i2c_write16(&client, 1796, 0);
2412                dib9000_i2c_write16(&client, 1227, 1);
2413                dib9000_i2c_write16(&client, 1227, 0);
2414
2415                if (dib9000_identify(&client) == 0) {
2416                        client.i2c_addr = default_addr;
2417                        if (dib9000_identify(&client) == 0) {
2418                                dprintk("DiB9000 #%d: not identified\n", k);
2419                                ret = -EIO;
2420                                goto error;
2421                        }
2422                }
2423
2424                dib9000_i2c_write16(&client, 1795, (1 << 10) | (4 << 6));
2425                dib9000_i2c_write16(&client, 1794, (new_addr << 2) | 2);
2426
2427                dprintk("IC %d initialized (to i2c_address 0x%x)\n", k, new_addr);
2428        }
2429
2430        for (k = 0; k < no_of_demods; k++) {
2431                new_addr = first_addr | (k << 1);
2432                client.i2c_addr = new_addr;
2433
2434                dib9000_i2c_write16(&client, 1794, (new_addr << 2));
2435                dib9000_i2c_write16(&client, 1795, 0);
2436        }
2437
2438error:
2439        kfree(client.i2c_read_buffer);
2440error_memory:
2441        kfree(client.i2c_write_buffer);
2442
2443        return ret;
2444}
2445EXPORT_SYMBOL(dib9000_i2c_enumeration);
2446
2447int dib9000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave)
2448{
2449        struct dib9000_state *state = fe->demodulator_priv;
2450        u8 index_frontend = 1;
2451
2452        while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
2453                index_frontend++;
2454        if (index_frontend < MAX_NUMBER_OF_FRONTENDS) {
2455                dprintk("set slave fe %p to index %i\n", fe_slave, index_frontend);
2456                state->fe[index_frontend] = fe_slave;
2457                return 0;
2458        }
2459
2460        dprintk("too many slave frontend\n");
2461        return -ENOMEM;
2462}
2463EXPORT_SYMBOL(dib9000_set_slave_frontend);
2464
2465struct dvb_frontend *dib9000_get_slave_frontend(struct dvb_frontend *fe, int slave_index)
2466{
2467        struct dib9000_state *state = fe->demodulator_priv;
2468
2469        if (slave_index >= MAX_NUMBER_OF_FRONTENDS)
2470                return NULL;
2471        return state->fe[slave_index];
2472}
2473EXPORT_SYMBOL(dib9000_get_slave_frontend);
2474
2475static const struct dvb_frontend_ops dib9000_ops;
2476struct dvb_frontend *dib9000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, const struct dib9000_config *cfg)
2477{
2478        struct dvb_frontend *fe;
2479        struct dib9000_state *st;
2480        st = kzalloc(sizeof(struct dib9000_state), GFP_KERNEL);
2481        if (st == NULL)
2482                return NULL;
2483        fe = kzalloc(sizeof(struct dvb_frontend), GFP_KERNEL);
2484        if (fe == NULL) {
2485                kfree(st);
2486                return NULL;
2487        }
2488
2489        memcpy(&st->chip.d9.cfg, cfg, sizeof(struct dib9000_config));
2490        st->i2c.i2c_adap = i2c_adap;
2491        st->i2c.i2c_addr = i2c_addr;
2492        st->i2c.i2c_write_buffer = st->i2c_write_buffer;
2493        st->i2c.i2c_read_buffer = st->i2c_read_buffer;
2494
2495        st->gpio_dir = DIB9000_GPIO_DEFAULT_DIRECTIONS;
2496        st->gpio_val = DIB9000_GPIO_DEFAULT_VALUES;
2497        st->gpio_pwm_pos = DIB9000_GPIO_DEFAULT_PWM_POS;
2498
2499        mutex_init(&st->platform.risc.mbx_if_lock);
2500        mutex_init(&st->platform.risc.mbx_lock);
2501        mutex_init(&st->platform.risc.mem_lock);
2502        mutex_init(&st->platform.risc.mem_mbx_lock);
2503        mutex_init(&st->demod_lock);
2504        st->get_frontend_internal = 0;
2505
2506        st->pid_ctrl_index = -2;
2507
2508        st->fe[0] = fe;
2509        fe->demodulator_priv = st;
2510        memcpy(&st->fe[0]->ops, &dib9000_ops, sizeof(struct dvb_frontend_ops));
2511
2512        /* Ensure the output mode remains at the previous default if it's
2513         * not specifically set by the caller.
2514         */
2515        if ((st->chip.d9.cfg.output_mode != OUTMODE_MPEG2_SERIAL) && (st->chip.d9.cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
2516                st->chip.d9.cfg.output_mode = OUTMODE_MPEG2_FIFO;
2517
2518        if (dib9000_identify(&st->i2c) == 0)
2519                goto error;
2520
2521        dibx000_init_i2c_master(&st->i2c_master, DIB7000MC, st->i2c.i2c_adap, st->i2c.i2c_addr);
2522
2523        st->tuner_adap.dev.parent = i2c_adap->dev.parent;
2524        strncpy(st->tuner_adap.name, "DIB9000_FW TUNER ACCESS", sizeof(st->tuner_adap.name));
2525        st->tuner_adap.algo = &dib9000_tuner_algo;
2526        st->tuner_adap.algo_data = NULL;
2527        i2c_set_adapdata(&st->tuner_adap, st);
2528        if (i2c_add_adapter(&st->tuner_adap) < 0)
2529                goto error;
2530
2531        st->component_bus.dev.parent = i2c_adap->dev.parent;
2532        strncpy(st->component_bus.name, "DIB9000_FW COMPONENT BUS ACCESS", sizeof(st->component_bus.name));
2533        st->component_bus.algo = &dib9000_component_bus_algo;
2534        st->component_bus.algo_data = NULL;
2535        st->component_bus_speed = 340;
2536        i2c_set_adapdata(&st->component_bus, st);
2537        if (i2c_add_adapter(&st->component_bus) < 0)
2538                goto component_bus_add_error;
2539
2540        dib9000_fw_reset(fe);
2541
2542        return fe;
2543
2544component_bus_add_error:
2545        i2c_del_adapter(&st->tuner_adap);
2546error:
2547        kfree(st);
2548        return NULL;
2549}
2550EXPORT_SYMBOL(dib9000_attach);
2551
2552static const struct dvb_frontend_ops dib9000_ops = {
2553        .delsys = { SYS_DVBT },
2554        .info = {
2555                 .name = "DiBcom 9000",
2556                 .frequency_min = 44250000,
2557                 .frequency_max = 867250000,
2558                 .frequency_stepsize = 62500,
2559                 .caps = FE_CAN_INVERSION_AUTO |
2560                 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
2561                 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
2562                 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
2563                 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | FE_CAN_HIERARCHY_AUTO,
2564                 },
2565
2566        .release = dib9000_release,
2567
2568        .init = dib9000_wakeup,
2569        .sleep = dib9000_sleep,
2570
2571        .set_frontend = dib9000_set_frontend,
2572        .get_tune_settings = dib9000_fe_get_tune_settings,
2573        .get_frontend = dib9000_get_frontend,
2574
2575        .read_status = dib9000_read_status,
2576        .read_ber = dib9000_read_ber,
2577        .read_signal_strength = dib9000_read_signal_strength,
2578        .read_snr = dib9000_read_snr,
2579        .read_ucblocks = dib9000_read_unc_blocks,
2580};
2581
2582MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
2583MODULE_AUTHOR("Olivier Grenie <olivier.grenie@parrot.com>");
2584MODULE_DESCRIPTION("Driver for the DiBcom 9000 COFDM demodulator");
2585MODULE_LICENSE("GPL");
2586