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budget-ci.c

/*
 * budget-ci.c: driver for the SAA7146 based Budget DVB cards
 *
 * Compiled from various sources by Michael Hunold <michael@mihu.de>
 *
 *     msp430 IR support contributed by Jack Thomasson <jkt@Helius.COM>
 *     partially based on the Siemens DVB driver by Ralph+Marcus Metzler
 *
 * CI interface support (c) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.      See the
 * GNU General Public License for more details.
 *
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 *
 *
 * the project's page is at http://www.linuxtv.org/dvb/
 */

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <media/ir-common.h>

#include "budget.h"

#include "dvb_ca_en50221.h"
#include "stv0299.h"
#include "stv0297.h"
#include "tda1004x.h"
#include "lnbp21.h"
#include "bsbe1.h"
#include "bsru6.h"

/*
 * Regarding DEBIADDR_IR:
 * Some CI modules hang if random addresses are read.
 * Using address 0x4000 for the IR read means that we
 * use the same address as for CI version, which should
 * be a safe default.
 */
#define DEBIADDR_IR           0x4000
#define DEBIADDR_CICONTROL    0x0000
#define DEBIADDR_CIVERSION    0x4000
#define DEBIADDR_IO           0x1000
#define DEBIADDR_ATTR         0x3000

#define CICONTROL_RESET       0x01
#define CICONTROL_ENABLETS    0x02
#define CICONTROL_CAMDETECT   0x08

#define DEBICICTL       0x00420000
#define DEBICICAM       0x02420000

#define SLOTSTATUS_NONE       1
#define SLOTSTATUS_PRESENT    2
#define SLOTSTATUS_RESET      4
#define SLOTSTATUS_READY      8
#define SLOTSTATUS_OCCUPIED   (SLOTSTATUS_PRESENT|SLOTSTATUS_RESET|SLOTSTATUS_READY)

/*
 * Milliseconds during which a key is regarded as pressed.
 * If an identical command arrives within this time, the timer will start over.
 */
#define IR_KEYPRESS_TIMEOUT   250

/* RC5 device wildcard */
#define IR_DEVICE_ANY         255

static int rc5_device = -1;
module_param(rc5_device, int, 0644);
MODULE_PARM_DESC(rc5_device, "only IR commands to given RC5 device (device = 0 - 31, any device = 255, default: autodetect)");

static int ir_debug = 0;
module_param(ir_debug, int, 0644);
MODULE_PARM_DESC(ir_debug, "enable debugging information for IR decoding");

struct budget_ci_ir {
      struct input_dev *dev;
      struct tasklet_struct msp430_irq_tasklet;
      struct timer_list timer_keyup;
      char name[72]; /* 40 + 32 for (struct saa7146_dev).name */
      char phys[32];
      struct ir_input_state state;
      int rc5_device;
      u32 last_raw;
      u32 ir_key;
      bool have_command;
};

struct budget_ci {
      struct budget budget;
      struct tasklet_struct ciintf_irq_tasklet;
      int slot_status;
      int ci_irq;
      struct dvb_ca_en50221 ca;
      struct budget_ci_ir ir;
      u8 tuner_pll_address; /* used for philips_tdm1316l configs */
};

static void msp430_ir_keyup(unsigned long data)
{
      struct budget_ci_ir *ir = (struct budget_ci_ir *) data;
      ir_input_nokey(ir->dev, &ir->state);
}

static void msp430_ir_interrupt(unsigned long data)
{
      struct budget_ci *budget_ci = (struct budget_ci *) data;
      struct input_dev *dev = budget_ci->ir.dev;
      u32 command = ttpci_budget_debiread(&budget_ci->budget, DEBINOSWAP, DEBIADDR_IR, 2, 1, 0) >> 8;
      u32 raw;

      /*
       * The msp430 chip can generate two different bytes, command and device
       *
       * type1: X1CCCCCC, C = command bits (0 - 63)
       * type2: X0TDDDDD, D = device bits (0 - 31), T = RC5 toggle bit
       *
       * Each signal from the remote control can generate one or more command
       * bytes and one or more device bytes. For the repeated bytes, the
       * highest bit (X) is set. The first command byte is always generated
       * before the first device byte. Other than that, no specific order
       * seems to apply. To make life interesting, bytes can also be lost.
       *
       * Only when we have a command and device byte, a keypress is
       * generated.
       */

      if (ir_debug)
            printk("budget_ci: received byte 0x%02x\n", command);

      /* Remove repeat bit, we use every command */
      command = command & 0x7f;

      /* Is this a RC5 command byte? */
      if (command & 0x40) {
            budget_ci->ir.have_command = true;
            budget_ci->ir.ir_key = command & 0x3f;
            return;
      }

      /* It's a RC5 device byte */
      if (!budget_ci->ir.have_command)
            return;
      budget_ci->ir.have_command = false;

      if (budget_ci->ir.rc5_device != IR_DEVICE_ANY &&
          budget_ci->ir.rc5_device != (command & 0x1f))
            return;

      /* Is this a repeated key sequence? (same device, command, toggle) */
      raw = budget_ci->ir.ir_key | (command << 8);
      if (budget_ci->ir.last_raw != raw || !timer_pending(&budget_ci->ir.timer_keyup)) {
            ir_input_nokey(dev, &budget_ci->ir.state);
            ir_input_keydown(dev, &budget_ci->ir.state,
                         budget_ci->ir.ir_key, raw);
            budget_ci->ir.last_raw = raw;
      }

      mod_timer(&budget_ci->ir.timer_keyup, jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT));
}

static int msp430_ir_init(struct budget_ci *budget_ci)
{
      struct saa7146_dev *saa = budget_ci->budget.dev;
      struct input_dev *input_dev = budget_ci->ir.dev;
      int error;

      budget_ci->ir.dev = input_dev = input_allocate_device();
      if (!input_dev) {
            printk(KERN_ERR "budget_ci: IR interface initialisation failed\n");
            error = -ENOMEM;
            goto out1;
      }

      snprintf(budget_ci->ir.name, sizeof(budget_ci->ir.name),
             "Budget-CI dvb ir receiver %s", saa->name);
      snprintf(budget_ci->ir.phys, sizeof(budget_ci->ir.phys),
             "pci-%s/ir0", pci_name(saa->pci));

      input_dev->name = budget_ci->ir.name;

      input_dev->phys = budget_ci->ir.phys;
      input_dev->id.bustype = BUS_PCI;
      input_dev->id.version = 1;
      if (saa->pci->subsystem_vendor) {
            input_dev->id.vendor = saa->pci->subsystem_vendor;
            input_dev->id.product = saa->pci->subsystem_device;
      } else {
            input_dev->id.vendor = saa->pci->vendor;
            input_dev->id.product = saa->pci->device;
      }
      input_dev->dev.parent = &saa->pci->dev;

      /* Select keymap and address */
      switch (budget_ci->budget.dev->pci->subsystem_device) {
      case 0x100c:
      case 0x100f:
      case 0x1011:
      case 0x1012:
            /* The hauppauge keymap is a superset of these remotes */
            ir_input_init(input_dev, &budget_ci->ir.state,
                        IR_TYPE_RC5, ir_codes_hauppauge_new);

            if (rc5_device < 0)
                  budget_ci->ir.rc5_device = 0x1f;
            else
                  budget_ci->ir.rc5_device = rc5_device;
            break;
      case 0x1010:
      case 0x1017:
            /* for the Technotrend 1500 bundled remote */
            ir_input_init(input_dev, &budget_ci->ir.state,
                        IR_TYPE_RC5, ir_codes_tt_1500);

            if (rc5_device < 0)
                  budget_ci->ir.rc5_device = IR_DEVICE_ANY;
            else
                  budget_ci->ir.rc5_device = rc5_device;
            break;
      default:
            /* unknown remote */
            ir_input_init(input_dev, &budget_ci->ir.state,
                        IR_TYPE_RC5, ir_codes_budget_ci_old);

            if (rc5_device < 0)
                  budget_ci->ir.rc5_device = IR_DEVICE_ANY;
            else
                  budget_ci->ir.rc5_device = rc5_device;
            break;
      }

      /* initialise the key-up timeout handler */
      init_timer(&budget_ci->ir.timer_keyup);
      budget_ci->ir.timer_keyup.function = msp430_ir_keyup;
      budget_ci->ir.timer_keyup.data = (unsigned long) &budget_ci->ir;
      budget_ci->ir.last_raw = 0xffff; /* An impossible value */
      error = input_register_device(input_dev);
      if (error) {
            printk(KERN_ERR "budget_ci: could not init driver for IR device (code %d)\n", error);
            goto out2;
      }

      /* note: these must be after input_register_device */
      input_dev->rep[REP_DELAY] = 400;
      input_dev->rep[REP_PERIOD] = 250;

      tasklet_init(&budget_ci->ir.msp430_irq_tasklet, msp430_ir_interrupt,
                 (unsigned long) budget_ci);

      SAA7146_IER_ENABLE(saa, MASK_06);
      saa7146_setgpio(saa, 3, SAA7146_GPIO_IRQHI);

      return 0;

out2:
      input_free_device(input_dev);
out1:
      return error;
}

static void msp430_ir_deinit(struct budget_ci *budget_ci)
{
      struct saa7146_dev *saa = budget_ci->budget.dev;
      struct input_dev *dev = budget_ci->ir.dev;

      SAA7146_IER_DISABLE(saa, MASK_06);
      saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);
      tasklet_kill(&budget_ci->ir.msp430_irq_tasklet);

      del_timer_sync(&dev->timer);
      ir_input_nokey(dev, &budget_ci->ir.state);

      input_unregister_device(dev);
}

static int ciintf_read_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;

      if (slot != 0)
            return -EINVAL;

      return ttpci_budget_debiread(&budget_ci->budget, DEBICICAM,
                             DEBIADDR_ATTR | (address & 0xfff), 1, 1, 0);
}

static int ciintf_write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address, u8 value)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;

      if (slot != 0)
            return -EINVAL;

      return ttpci_budget_debiwrite(&budget_ci->budget, DEBICICAM,
                              DEBIADDR_ATTR | (address & 0xfff), 1, value, 1, 0);
}

static int ciintf_read_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;

      if (slot != 0)
            return -EINVAL;

      return ttpci_budget_debiread(&budget_ci->budget, DEBICICAM,
                             DEBIADDR_IO | (address & 3), 1, 1, 0);
}

static int ciintf_write_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address, u8 value)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;

      if (slot != 0)
            return -EINVAL;

      return ttpci_budget_debiwrite(&budget_ci->budget, DEBICICAM,
                              DEBIADDR_IO | (address & 3), 1, value, 1, 0);
}

static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;
      struct saa7146_dev *saa = budget_ci->budget.dev;

      if (slot != 0)
            return -EINVAL;

      if (budget_ci->ci_irq) {
            // trigger on RISING edge during reset so we know when READY is re-asserted
            saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);
      }
      budget_ci->slot_status = SLOTSTATUS_RESET;
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0);
      msleep(1);
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
                         CICONTROL_RESET, 1, 0);

      saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);
      ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
      return 0;
}

static int ciintf_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;
      struct saa7146_dev *saa = budget_ci->budget.dev;

      if (slot != 0)
            return -EINVAL;

      saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);
      ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
      return 0;
}

static int ciintf_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;
      struct saa7146_dev *saa = budget_ci->budget.dev;
      int tmp;

      if (slot != 0)
            return -EINVAL;

      saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTLO);

      tmp = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
                         tmp | CICONTROL_ENABLETS, 1, 0);

      ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTA);
      return 0;
}

static void ciintf_interrupt(unsigned long data)
{
      struct budget_ci *budget_ci = (struct budget_ci *) data;
      struct saa7146_dev *saa = budget_ci->budget.dev;
      unsigned int flags;

      // ensure we don't get spurious IRQs during initialisation
      if (!budget_ci->budget.ci_present)
            return;

      // read the CAM status
      flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
      if (flags & CICONTROL_CAMDETECT) {

            // GPIO should be set to trigger on falling edge if a CAM is present
            saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);

            if (budget_ci->slot_status & SLOTSTATUS_NONE) {
                  // CAM insertion IRQ
                  budget_ci->slot_status = SLOTSTATUS_PRESENT;
                  dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0,
                                         DVB_CA_EN50221_CAMCHANGE_INSERTED);

            } else if (budget_ci->slot_status & SLOTSTATUS_RESET) {
                  // CAM ready (reset completed)
                  budget_ci->slot_status = SLOTSTATUS_READY;
                  dvb_ca_en50221_camready_irq(&budget_ci->ca, 0);

            } else if (budget_ci->slot_status & SLOTSTATUS_READY) {
                  // FR/DA IRQ
                  dvb_ca_en50221_frda_irq(&budget_ci->ca, 0);
            }
      } else {

            // trigger on rising edge if a CAM is not present - when a CAM is inserted, we
            // only want to get the IRQ when it sets READY. If we trigger on the falling edge,
            // the CAM might not actually be ready yet.
            saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);

            // generate a CAM removal IRQ if we haven't already
            if (budget_ci->slot_status & SLOTSTATUS_OCCUPIED) {
                  // CAM removal IRQ
                  budget_ci->slot_status = SLOTSTATUS_NONE;
                  dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0,
                                         DVB_CA_EN50221_CAMCHANGE_REMOVED);
            }
      }
}

static int ciintf_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
{
      struct budget_ci *budget_ci = (struct budget_ci *) ca->data;
      unsigned int flags;

      // ensure we don't get spurious IRQs during initialisation
      if (!budget_ci->budget.ci_present)
            return -EINVAL;

      // read the CAM status
      flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
      if (flags & CICONTROL_CAMDETECT) {
            // mark it as present if it wasn't before
            if (budget_ci->slot_status & SLOTSTATUS_NONE) {
                  budget_ci->slot_status = SLOTSTATUS_PRESENT;
            }

            // during a RESET, we check if we can read from IO memory to see when CAM is ready
            if (budget_ci->slot_status & SLOTSTATUS_RESET) {
                  if (ciintf_read_attribute_mem(ca, slot, 0) == 0x1d) {
                        budget_ci->slot_status = SLOTSTATUS_READY;
                  }
            }
      } else {
            budget_ci->slot_status = SLOTSTATUS_NONE;
      }

      if (budget_ci->slot_status != SLOTSTATUS_NONE) {
            if (budget_ci->slot_status & SLOTSTATUS_READY) {
                  return DVB_CA_EN50221_POLL_CAM_PRESENT | DVB_CA_EN50221_POLL_CAM_READY;
            }
            return DVB_CA_EN50221_POLL_CAM_PRESENT;
      }

      return 0;
}

static int ciintf_init(struct budget_ci *budget_ci)
{
      struct saa7146_dev *saa = budget_ci->budget.dev;
      int flags;
      int result;
      int ci_version;
      int ca_flags;

      memset(&budget_ci->ca, 0, sizeof(struct dvb_ca_en50221));

      // enable DEBI pins
      saa7146_write(saa, MC1, MASK_27 | MASK_11);

      // test if it is there
      ci_version = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CIVERSION, 1, 1, 0);
      if ((ci_version & 0xa0) != 0xa0) {
            result = -ENODEV;
            goto error;
      }

      // determine whether a CAM is present or not
      flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
      budget_ci->slot_status = SLOTSTATUS_NONE;
      if (flags & CICONTROL_CAMDETECT)
            budget_ci->slot_status = SLOTSTATUS_PRESENT;

      // version 0xa2 of the CI firmware doesn't generate interrupts
      if (ci_version == 0xa2) {
            ca_flags = 0;
            budget_ci->ci_irq = 0;
      } else {
            ca_flags = DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE |
                        DVB_CA_EN50221_FLAG_IRQ_FR |
                        DVB_CA_EN50221_FLAG_IRQ_DA;
            budget_ci->ci_irq = 1;
      }

      // register CI interface
      budget_ci->ca.owner = THIS_MODULE;
      budget_ci->ca.read_attribute_mem = ciintf_read_attribute_mem;
      budget_ci->ca.write_attribute_mem = ciintf_write_attribute_mem;
      budget_ci->ca.read_cam_control = ciintf_read_cam_control;
      budget_ci->ca.write_cam_control = ciintf_write_cam_control;
      budget_ci->ca.slot_reset = ciintf_slot_reset;
      budget_ci->ca.slot_shutdown = ciintf_slot_shutdown;
      budget_ci->ca.slot_ts_enable = ciintf_slot_ts_enable;
      budget_ci->ca.poll_slot_status = ciintf_poll_slot_status;
      budget_ci->ca.data = budget_ci;
      if ((result = dvb_ca_en50221_init(&budget_ci->budget.dvb_adapter,
                                &budget_ci->ca,
                                ca_flags, 1)) != 0) {
            printk("budget_ci: CI interface detected, but initialisation failed.\n");
            goto error;
      }

      // Setup CI slot IRQ
      if (budget_ci->ci_irq) {
            tasklet_init(&budget_ci->ciintf_irq_tasklet, ciintf_interrupt, (unsigned long) budget_ci);
            if (budget_ci->slot_status != SLOTSTATUS_NONE) {
                  saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);
            } else {
                  saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);
            }
            SAA7146_IER_ENABLE(saa, MASK_03);
      }

      // enable interface
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
                         CICONTROL_RESET, 1, 0);

      // success!
      printk("budget_ci: CI interface initialised\n");
      budget_ci->budget.ci_present = 1;

      // forge a fake CI IRQ so the CAM state is setup correctly
      if (budget_ci->ci_irq) {
            flags = DVB_CA_EN50221_CAMCHANGE_REMOVED;
            if (budget_ci->slot_status != SLOTSTATUS_NONE)
                  flags = DVB_CA_EN50221_CAMCHANGE_INSERTED;
            dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, flags);
      }

      return 0;

error:
      saa7146_write(saa, MC1, MASK_27);
      return result;
}

static void ciintf_deinit(struct budget_ci *budget_ci)
{
      struct saa7146_dev *saa = budget_ci->budget.dev;

      // disable CI interrupts
      if (budget_ci->ci_irq) {
            SAA7146_IER_DISABLE(saa, MASK_03);
            saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT);
            tasklet_kill(&budget_ci->ciintf_irq_tasklet);
      }

      // reset interface
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0);
      msleep(1);
      ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
                         CICONTROL_RESET, 1, 0);

      // disable TS data stream to CI interface
      saa7146_setgpio(saa, 1, SAA7146_GPIO_INPUT);

      // release the CA device
      dvb_ca_en50221_release(&budget_ci->ca);

      // disable DEBI pins
      saa7146_write(saa, MC1, MASK_27);
}

static void budget_ci_irq(struct saa7146_dev *dev, u32 * isr)
{
      struct budget_ci *budget_ci = (struct budget_ci *) dev->ext_priv;

      dprintk(8, "dev: %p, budget_ci: %p\n", dev, budget_ci);

      if (*isr & MASK_06)
            tasklet_schedule(&budget_ci->ir.msp430_irq_tasklet);

      if (*isr & MASK_10)
            ttpci_budget_irq10_handler(dev, isr);

      if ((*isr & MASK_03) && (budget_ci->budget.ci_present) && (budget_ci->ci_irq))
            tasklet_schedule(&budget_ci->ciintf_irq_tasklet);
}

static u8 philips_su1278_tt_inittab[] = {
      0x01, 0x0f,
      0x02, 0x30,
      0x03, 0x00,
      0x04, 0x5b,
      0x05, 0x85,
      0x06, 0x02,
      0x07, 0x00,
      0x08, 0x02,
      0x09, 0x00,
      0x0C, 0x01,
      0x0D, 0x81,
      0x0E, 0x44,
      0x0f, 0x14,
      0x10, 0x3c,
      0x11, 0x84,
      0x12, 0xda,
      0x13, 0x97,
      0x14, 0x95,
      0x15, 0xc9,
      0x16, 0x19,
      0x17, 0x8c,
      0x18, 0x59,
      0x19, 0xf8,
      0x1a, 0xfe,
      0x1c, 0x7f,
      0x1d, 0x00,
      0x1e, 0x00,
      0x1f, 0x50,
      0x20, 0x00,
      0x21, 0x00,
      0x22, 0x00,
      0x23, 0x00,
      0x28, 0x00,
      0x29, 0x28,
      0x2a, 0x14,
      0x2b, 0x0f,
      0x2c, 0x09,
      0x2d, 0x09,
      0x31, 0x1f,
      0x32, 0x19,
      0x33, 0xfc,
      0x34, 0x93,
      0xff, 0xff
};

static int philips_su1278_tt_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio)
{
      stv0299_writereg(fe, 0x0e, 0x44);
      if (srate >= 10000000) {
            stv0299_writereg(fe, 0x13, 0x97);
            stv0299_writereg(fe, 0x14, 0x95);
            stv0299_writereg(fe, 0x15, 0xc9);
            stv0299_writereg(fe, 0x17, 0x8c);
            stv0299_writereg(fe, 0x1a, 0xfe);
            stv0299_writereg(fe, 0x1c, 0x7f);
            stv0299_writereg(fe, 0x2d, 0x09);
      } else {
            stv0299_writereg(fe, 0x13, 0x99);
            stv0299_writereg(fe, 0x14, 0x8d);
            stv0299_writereg(fe, 0x15, 0xce);
            stv0299_writereg(fe, 0x17, 0x43);
            stv0299_writereg(fe, 0x1a, 0x1d);
            stv0299_writereg(fe, 0x1c, 0x12);
            stv0299_writereg(fe, 0x2d, 0x05);
      }
      stv0299_writereg(fe, 0x0e, 0x23);
      stv0299_writereg(fe, 0x0f, 0x94);
      stv0299_writereg(fe, 0x10, 0x39);
      stv0299_writereg(fe, 0x15, 0xc9);

      stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
      stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
      stv0299_writereg(fe, 0x21, (ratio) & 0xf0);

      return 0;
}

static int philips_su1278_tt_tuner_set_params(struct dvb_frontend *fe,
                                 struct dvb_frontend_parameters *params)
{
      struct budget_ci *budget_ci = (struct budget_ci *) fe->dvb->priv;
      u32 div;
      u8 buf[4];
      struct i2c_msg msg = {.addr = 0x60,.flags = 0,.buf = buf,.len = sizeof(buf) };

      if ((params->frequency < 950000) || (params->frequency > 2150000))
            return -EINVAL;

      div = (params->frequency + (500 - 1)) / 500;    // round correctly
      buf[0] = (div >> 8) & 0x7f;
      buf[1] = div & 0xff;
      buf[2] = 0x80 | ((div & 0x18000) >> 10) | 2;
      buf[3] = 0x20;

      if (params->u.qpsk.symbol_rate < 4000000)
            buf[3] |= 1;

      if (params->frequency < 1250000)
            buf[3] |= 0;
      else if (params->frequency < 1550000)
            buf[3] |= 0x40;
      else if (params->frequency < 2050000)
            buf[3] |= 0x80;
      else if (params->frequency < 2150000)
            buf[3] |= 0xC0;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &msg, 1) != 1)
            return -EIO;
      return 0;
}

static struct stv0299_config philips_su1278_tt_config = {

      .demod_address = 0x68,
      .inittab = philips_su1278_tt_inittab,
      .mclk = 64000000UL,
      .invert = 0,
      .skip_reinit = 1,
      .lock_output = STV0229_LOCKOUTPUT_1,
      .volt13_op0_op1 = STV0299_VOLT13_OP1,
      .min_delay_ms = 50,
      .set_symbol_rate = philips_su1278_tt_set_symbol_rate,
};



static int philips_tdm1316l_tuner_init(struct dvb_frontend *fe)
{
      struct budget_ci *budget_ci = (struct budget_ci *) fe->dvb->priv;
      static u8 td1316_init[] = { 0x0b, 0xf5, 0x85, 0xab };
      static u8 disable_mc44BC374c[] = { 0x1d, 0x74, 0xa0, 0x68 };
      struct i2c_msg tuner_msg = {.addr = budget_ci->tuner_pll_address,.flags = 0,.buf = td1316_init,.len =
                  sizeof(td1316_init) };

      // setup PLL configuration
      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1) != 1)
            return -EIO;
      msleep(1);

      // disable the mc44BC374c (do not check for errors)
      tuner_msg.addr = 0x65;
      tuner_msg.buf = disable_mc44BC374c;
      tuner_msg.len = sizeof(disable_mc44BC374c);
      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1) != 1) {
            if (fe->ops.i2c_gate_ctrl)
                  fe->ops.i2c_gate_ctrl(fe, 1);
            i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1);
      }

      return 0;
}

static int philips_tdm1316l_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
      struct budget_ci *budget_ci = (struct budget_ci *) fe->dvb->priv;
      u8 tuner_buf[4];
      struct i2c_msg tuner_msg = {.addr = budget_ci->tuner_pll_address,.flags = 0,.buf = tuner_buf,.len = sizeof(tuner_buf) };
      int tuner_frequency = 0;
      u8 band, cp, filter;

      // determine charge pump
      tuner_frequency = params->frequency + 36130000;
      if (tuner_frequency < 87000000)
            return -EINVAL;
      else if (tuner_frequency < 130000000)
            cp = 3;
      else if (tuner_frequency < 160000000)
            cp = 5;
      else if (tuner_frequency < 200000000)
            cp = 6;
      else if (tuner_frequency < 290000000)
            cp = 3;
      else if (tuner_frequency < 420000000)
            cp = 5;
      else if (tuner_frequency < 480000000)
            cp = 6;
      else if (tuner_frequency < 620000000)
            cp = 3;
      else if (tuner_frequency < 830000000)
            cp = 5;
      else if (tuner_frequency < 895000000)
            cp = 7;
      else
            return -EINVAL;

      // determine band
      if (params->frequency < 49000000)
            return -EINVAL;
      else if (params->frequency < 159000000)
            band = 1;
      else if (params->frequency < 444000000)
            band = 2;
      else if (params->frequency < 861000000)
            band = 4;
      else
            return -EINVAL;

      // setup PLL filter and TDA9889
      switch (params->u.ofdm.bandwidth) {
      case BANDWIDTH_6_MHZ:
            tda1004x_writereg(fe, 0x0C, 0x14);
            filter = 0;
            break;

      case BANDWIDTH_7_MHZ:
            tda1004x_writereg(fe, 0x0C, 0x80);
            filter = 0;
            break;

      case BANDWIDTH_8_MHZ:
            tda1004x_writereg(fe, 0x0C, 0x14);
            filter = 1;
            break;

      default:
            return -EINVAL;
      }

      // calculate divisor
      // ((36130000+((1000000/6)/2)) + Finput)/(1000000/6)
      tuner_frequency = (((params->frequency / 1000) * 6) + 217280) / 1000;

      // setup tuner buffer
      tuner_buf[0] = tuner_frequency >> 8;
      tuner_buf[1] = tuner_frequency & 0xff;
      tuner_buf[2] = 0xca;
      tuner_buf[3] = (cp << 5) | (filter << 3) | band;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1) != 1)
            return -EIO;

      msleep(1);
      return 0;
}

static int philips_tdm1316l_request_firmware(struct dvb_frontend *fe,
                                   const struct firmware **fw, char *name)
{
      struct budget_ci *budget_ci = (struct budget_ci *) fe->dvb->priv;

      return request_firmware(fw, name, &budget_ci->budget.dev->pci->dev);
}

static struct tda1004x_config philips_tdm1316l_config = {

      .demod_address = 0x8,
      .invert = 0,
      .invert_oclk = 0,
      .xtal_freq = TDA10046_XTAL_4M,
      .agc_config = TDA10046_AGC_DEFAULT,
      .if_freq = TDA10046_FREQ_3617,
      .request_firmware = philips_tdm1316l_request_firmware,
};

static struct tda1004x_config philips_tdm1316l_config_invert = {

      .demod_address = 0x8,
      .invert = 1,
      .invert_oclk = 0,
      .xtal_freq = TDA10046_XTAL_4M,
      .agc_config = TDA10046_AGC_DEFAULT,
      .if_freq = TDA10046_FREQ_3617,
      .request_firmware = philips_tdm1316l_request_firmware,
};

static int dvbc_philips_tdm1316l_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
      struct budget_ci *budget_ci = (struct budget_ci *) fe->dvb->priv;
      u8 tuner_buf[5];
      struct i2c_msg tuner_msg = {.addr = budget_ci->tuner_pll_address,
                            .flags = 0,
                            .buf = tuner_buf,
                            .len = sizeof(tuner_buf) };
      int tuner_frequency = 0;
      u8 band, cp, filter;

      // determine charge pump
      tuner_frequency = params->frequency + 36125000;
      if (tuner_frequency < 87000000)
            return -EINVAL;
      else if (tuner_frequency < 130000000) {
            cp = 3;
            band = 1;
      } else if (tuner_frequency < 160000000) {
            cp = 5;
            band = 1;
      } else if (tuner_frequency < 200000000) {
            cp = 6;
            band = 1;
      } else if (tuner_frequency < 290000000) {
            cp = 3;
            band = 2;
      } else if (tuner_frequency < 420000000) {
            cp = 5;
            band = 2;
      } else if (tuner_frequency < 480000000) {
            cp = 6;
            band = 2;
      } else if (tuner_frequency < 620000000) {
            cp = 3;
            band = 4;
      } else if (tuner_frequency < 830000000) {
            cp = 5;
            band = 4;
      } else if (tuner_frequency < 895000000) {
            cp = 7;
            band = 4;
      } else
            return -EINVAL;

      // assume PLL filter should always be 8MHz for the moment.
      filter = 1;

      // calculate divisor
      tuner_frequency = (params->frequency + 36125000 + (62500/2)) / 62500;

      // setup tuner buffer
      tuner_buf[0] = tuner_frequency >> 8;
      tuner_buf[1] = tuner_frequency & 0xff;
      tuner_buf[2] = 0xc8;
      tuner_buf[3] = (cp << 5) | (filter << 3) | band;
      tuner_buf[4] = 0x80;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1) != 1)
            return -EIO;

      msleep(50);

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      if (i2c_transfer(&budget_ci->budget.i2c_adap, &tuner_msg, 1) != 1)
            return -EIO;

      msleep(1);

      return 0;
}

static u8 dvbc_philips_tdm1316l_inittab[] = {
      0x80, 0x01,
      0x80, 0x00,
      0x81, 0x01,
      0x81, 0x00,
      0x00, 0x09,
      0x01, 0x69,
      0x03, 0x00,
      0x04, 0x00,
      0x07, 0x00,
      0x08, 0x00,
      0x20, 0x00,
      0x21, 0x40,
      0x22, 0x00,
      0x23, 0x00,
      0x24, 0x40,
      0x25, 0x88,
      0x30, 0xff,
      0x31, 0x00,
      0x32, 0xff,
      0x33, 0x00,
      0x34, 0x50,
      0x35, 0x7f,
      0x36, 0x00,
      0x37, 0x20,
      0x38, 0x00,
      0x40, 0x1c,
      0x41, 0xff,
      0x42, 0x29,
      0x43, 0x20,
      0x44, 0xff,
      0x45, 0x00,
      0x46, 0x00,
      0x49, 0x04,
      0x4a, 0x00,
      0x4b, 0x7b,
      0x52, 0x30,
      0x55, 0xae,
      0x56, 0x47,
      0x57, 0xe1,
      0x58, 0x3a,
      0x5a, 0x1e,
      0x5b, 0x34,
      0x60, 0x00,
      0x63, 0x00,
      0x64, 0x00,
      0x65, 0x00,
      0x66, 0x00,
      0x67, 0x00,
      0x68, 0x00,
      0x69, 0x00,
      0x6a, 0x02,
      0x6b, 0x00,
      0x70, 0xff,
      0x71, 0x00,
      0x72, 0x00,
      0x73, 0x00,
      0x74, 0x0c,
      0x80, 0x00,
      0x81, 0x00,
      0x82, 0x00,
      0x83, 0x00,
      0x84, 0x04,
      0x85, 0x80,
      0x86, 0x24,
      0x87, 0x78,
      0x88, 0x10,
      0x89, 0x00,
      0x90, 0x01,
      0x91, 0x01,
      0xa0, 0x04,
      0xa1, 0x00,
      0xa2, 0x00,
      0xb0, 0x91,
      0xb1, 0x0b,
      0xc0, 0x53,
      0xc1, 0x70,
      0xc2, 0x12,
      0xd0, 0x00,
      0xd1, 0x00,
      0xd2, 0x00,
      0xd3, 0x00,
      0xd4, 0x00,
      0xd5, 0x00,
      0xde, 0x00,
      0xdf, 0x00,
      0x61, 0x38,
      0x62, 0x0a,
      0x53, 0x13,
      0x59, 0x08,
      0xff, 0xff,
};

static struct stv0297_config dvbc_philips_tdm1316l_config = {
      .demod_address = 0x1c,
      .inittab = dvbc_philips_tdm1316l_inittab,
      .invert = 0,
      .stop_during_read = 1,
};




static void frontend_init(struct budget_ci *budget_ci)
{
      switch (budget_ci->budget.dev->pci->subsystem_device) {
      case 0x100c:            // Hauppauge/TT Nova-CI budget (stv0299/ALPS BSRU6(tsa5059))
            budget_ci->budget.dvb_frontend =
                  dvb_attach(stv0299_attach, &alps_bsru6_config, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = alps_bsru6_tuner_set_params;
                  budget_ci->budget.dvb_frontend->tuner_priv = &budget_ci->budget.i2c_adap;
                  break;
            }
            break;

      case 0x100f:            // Hauppauge/TT Nova-CI budget (stv0299b/Philips su1278(tsa5059))
            budget_ci->budget.dvb_frontend =
                  dvb_attach(stv0299_attach, &philips_su1278_tt_config, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = philips_su1278_tt_tuner_set_params;
                  break;
            }
            break;

      case 0x1010:            // TT DVB-C CI budget (stv0297/Philips tdm1316l(tda6651tt))
            budget_ci->tuner_pll_address = 0x61;
            budget_ci->budget.dvb_frontend =
                  dvb_attach(stv0297_attach, &dvbc_philips_tdm1316l_config, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = dvbc_philips_tdm1316l_tuner_set_params;
                  break;
            }
            break;

      case 0x1011:            // Hauppauge/TT Nova-T budget (tda10045/Philips tdm1316l(tda6651tt) + TDA9889)
            budget_ci->tuner_pll_address = 0x63;
            budget_ci->budget.dvb_frontend =
                  dvb_attach(tda10045_attach, &philips_tdm1316l_config, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.init = philips_tdm1316l_tuner_init;
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = philips_tdm1316l_tuner_set_params;
                  break;
            }
            break;

      case 0x1012:            // TT DVB-T CI budget (tda10046/Philips tdm1316l(tda6651tt))
            budget_ci->tuner_pll_address = 0x60;
            budget_ci->budget.dvb_frontend =
                  dvb_attach(tda10046_attach, &philips_tdm1316l_config_invert, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.init = philips_tdm1316l_tuner_init;
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = philips_tdm1316l_tuner_set_params;
                  break;
            }
            break;

      case 0x1017:            // TT S-1500 PCI
            budget_ci->budget.dvb_frontend = dvb_attach(stv0299_attach, &alps_bsbe1_config, &budget_ci->budget.i2c_adap);
            if (budget_ci->budget.dvb_frontend) {
                  budget_ci->budget.dvb_frontend->ops.tuner_ops.set_params = alps_bsbe1_tuner_set_params;
                  budget_ci->budget.dvb_frontend->tuner_priv = &budget_ci->budget.i2c_adap;

                  budget_ci->budget.dvb_frontend->ops.dishnetwork_send_legacy_command = NULL;
                  if (dvb_attach(lnbp21_attach, budget_ci->budget.dvb_frontend, &budget_ci->budget.i2c_adap, LNBP21_LLC, 0) == NULL) {
                        printk("%s: No LNBP21 found!\n", __FUNCTION__);
                        dvb_frontend_detach(budget_ci->budget.dvb_frontend);
                        budget_ci->budget.dvb_frontend = NULL;
                  }
            }

            break;
      }

      if (budget_ci->budget.dvb_frontend == NULL) {
            printk("budget-ci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
                   budget_ci->budget.dev->pci->vendor,
                   budget_ci->budget.dev->pci->device,
                   budget_ci->budget.dev->pci->subsystem_vendor,
                   budget_ci->budget.dev->pci->subsystem_device);
      } else {
            if (dvb_register_frontend
                (&budget_ci->budget.dvb_adapter, budget_ci->budget.dvb_frontend)) {
                  printk("budget-ci: Frontend registration failed!\n");
                  dvb_frontend_detach(budget_ci->budget.dvb_frontend);
                  budget_ci->budget.dvb_frontend = NULL;
            }
      }
}

static int budget_ci_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
{
      struct budget_ci *budget_ci;
      int err;

      budget_ci = kzalloc(sizeof(struct budget_ci), GFP_KERNEL);
      if (!budget_ci) {
            err = -ENOMEM;
            goto out1;
      }

      dprintk(2, "budget_ci: %p\n", budget_ci);

      dev->ext_priv = budget_ci;

      err = ttpci_budget_init(&budget_ci->budget, dev, info, THIS_MODULE);
      if (err)
            goto out2;

      err = msp430_ir_init(budget_ci);
      if (err)
            goto out3;

      ciintf_init(budget_ci);

      budget_ci->budget.dvb_adapter.priv = budget_ci;
      frontend_init(budget_ci);

      ttpci_budget_init_hooks(&budget_ci->budget);

      return 0;

out3:
      ttpci_budget_deinit(&budget_ci->budget);
out2:
      kfree(budget_ci);
out1:
      return err;
}

static int budget_ci_detach(struct saa7146_dev *dev)
{
      struct budget_ci *budget_ci = (struct budget_ci *) dev->ext_priv;
      struct saa7146_dev *saa = budget_ci->budget.dev;
      int err;

      if (budget_ci->budget.ci_present)
            ciintf_deinit(budget_ci);
      msp430_ir_deinit(budget_ci);
      if (budget_ci->budget.dvb_frontend) {
            dvb_unregister_frontend(budget_ci->budget.dvb_frontend);
            dvb_frontend_detach(budget_ci->budget.dvb_frontend);
      }
      err = ttpci_budget_deinit(&budget_ci->budget);

      // disable frontend and CI interface
      saa7146_setgpio(saa, 2, SAA7146_GPIO_INPUT);

      kfree(budget_ci);

      return err;
}

static struct saa7146_extension budget_extension;

MAKE_BUDGET_INFO(ttbs2, "TT-Budget/S-1500 PCI", BUDGET_TT);
MAKE_BUDGET_INFO(ttbci, "TT-Budget/WinTV-NOVA-CI PCI", BUDGET_TT_HW_DISEQC);
MAKE_BUDGET_INFO(ttbt2, "TT-Budget/WinTV-NOVA-T  PCI", BUDGET_TT);
MAKE_BUDGET_INFO(ttbtci, "TT-Budget-T-CI PCI", BUDGET_TT);
MAKE_BUDGET_INFO(ttbcci, "TT-Budget-C-CI PCI", BUDGET_TT);

static struct pci_device_id pci_tbl[] = {
      MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100c),
      MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100f),
      MAKE_EXTENSION_PCI(ttbcci, 0x13c2, 0x1010),
      MAKE_EXTENSION_PCI(ttbt2, 0x13c2, 0x1011),
      MAKE_EXTENSION_PCI(ttbtci, 0x13c2, 0x1012),
      MAKE_EXTENSION_PCI(ttbs2, 0x13c2, 0x1017),
      {
       .vendor = 0,
       }
};

MODULE_DEVICE_TABLE(pci, pci_tbl);

static struct saa7146_extension budget_extension = {
      .name = "budget_ci dvb",
      .flags = SAA7146_USE_I2C_IRQ,

      .module = THIS_MODULE,
      .pci_tbl = &pci_tbl[0],
      .attach = budget_ci_attach,
      .detach = budget_ci_detach,

      .irq_mask = MASK_03 | MASK_06 | MASK_10,
      .irq_func = budget_ci_irq,
};

static int __init budget_ci_init(void)
{
      return saa7146_register_extension(&budget_extension);
}

static void __exit budget_ci_exit(void)
{
      saa7146_unregister_extension(&budget_extension);
}

module_init(budget_ci_init);
module_exit(budget_ci_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michael Hunold, Jack Thomasson, Andrew de Quincey, others");
MODULE_DESCRIPTION("driver for the SAA7146 based so-called "
               "budget PCI DVB cards w/ CI-module produced by "
               "Siemens, Technotrend, Hauppauge");

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