[media] DIB9000: initial support added
authorOlivier Grenie <olivier.grenie@dibcom.fr>
Tue, 4 Jan 2011 07:28:59 +0000 (04:28 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Mon, 21 Mar 2011 23:31:41 +0000 (20:31 -0300)
This patchs add initial support for the DiB9000-device. This
demodulator is firmware-driven.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/dvb/frontends/Kconfig
drivers/media/dvb/frontends/Makefile
drivers/media/dvb/frontends/dib9000.c [new file with mode: 0644]
drivers/media/dvb/frontends/dib9000.h [new file with mode: 0644]
drivers/media/dvb/frontends/dibx000_common.h

index b8519ba511e5326373dd6b873aa687bff3f0e94b..a20c1532726a4f304abd9b6ef6858426e272cb51 100644 (file)
@@ -349,6 +349,14 @@ config DVB_DIB7000P
          A DVB-T tuner module. Designed for mobile usage. Say Y when you want
          to support this frontend.
 
+config DVB_DIB9000
+       tristate "DiBcom 9000"
+       depends on DVB_CORE && I2C
+       default m if DVB_FE_CUSTOMISE
+       help
+         A DVB-T tuner module. Designed for mobile usage. Say Y when you want
+         to support this frontend.
+
 config DVB_TDA10048
        tristate "Philips TDA10048HN based"
        depends on DVB_CORE && I2C
index b1d9525aa7e3976d21b75bc610b6d9613e00ec95..31dd201c57cee8026618b7141541e4e7a7de689d 100644 (file)
@@ -24,6 +24,7 @@ obj-$(CONFIG_DVB_DIB3000MC) += dib3000mc.o dibx000_common.o
 obj-$(CONFIG_DVB_DIB7000M) += dib7000m.o dibx000_common.o
 obj-$(CONFIG_DVB_DIB7000P) += dib7000p.o dibx000_common.o
 obj-$(CONFIG_DVB_DIB8000) += dib8000.o dibx000_common.o
+obj-$(CONFIG_DVB_DIB9000) += dib9000.o dibx000_common.o
 obj-$(CONFIG_DVB_MT312) += mt312.o
 obj-$(CONFIG_DVB_VES1820) += ves1820.o
 obj-$(CONFIG_DVB_VES1X93) += ves1x93.o
diff --git a/drivers/media/dvb/frontends/dib9000.c b/drivers/media/dvb/frontends/dib9000.c
new file mode 100644 (file)
index 0000000..a41e02d
--- /dev/null
@@ -0,0 +1,2358 @@
+/*
+ * Linux-DVB Driver for DiBcom's DiB9000 and demodulator-family.
+ *
+ * Copyright (C) 2005-10 DiBcom (http://www.dibcom.fr/)
+ *
+ * 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, version 2.
+ */
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+#include "dvb_math.h"
+#include "dvb_frontend.h"
+
+#include "dib9000.h"
+#include "dibx000_common.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
+
+#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB9000: "); printk(args); printk("\n"); } } while (0)
+#define MAX_NUMBER_OF_FRONTENDS 6
+
+struct i2c_device {
+       struct i2c_adapter *i2c_adap;
+       u8 i2c_addr;
+};
+
+/* lock */
+#define DIB_LOCK struct mutex
+#define DibAcquireLock(lock) do { if (mutex_lock_interruptible(lock)<0) dprintk("could not get the lock"); } while (0)
+#define DibReleaseLock(lock) mutex_unlock(lock)
+#define DibInitLock(lock) mutex_init(lock)
+#define DibFreeLock(lock)
+
+struct dib9000_state {
+       struct i2c_device i2c;
+
+       struct dibx000_i2c_master i2c_master;
+       struct i2c_adapter tuner_adap;
+       struct i2c_adapter component_bus;
+
+       u16 revision;
+       u8 reg_offs;
+
+       enum frontend_tune_state tune_state;
+       u32 status;
+       struct dvb_frontend_parametersContext channel_status;
+
+       u8 fe_id;
+
+#define DIB9000_GPIO_DEFAULT_DIRECTIONS 0xffff
+       u16 gpio_dir;
+#define DIB9000_GPIO_DEFAULT_VALUES     0x0000
+       u16 gpio_val;
+#define DIB9000_GPIO_DEFAULT_PWM_POS    0xffff
+       u16 gpio_pwm_pos;
+
+       union {                 /* common for all chips */
+               struct {
+                       u8 mobile_mode:1;
+               } host;
+
+               struct {
+                       struct dib9000_fe_memory_map {
+                               u16 addr;
+                               u16 size;
+                       } fe_mm[18];
+                       u8 memcmd;
+
+                       DIB_LOCK mbx_if_lock;   /* to protect read/write operations */
+                       DIB_LOCK mbx_lock;      /* to protect the whole mailbox handling */
+
+                       DIB_LOCK mem_lock;      /* to protect the memory accesses */
+                       DIB_LOCK mem_mbx_lock;  /* to protect the memory-based mailbox */
+
+#define MBX_MAX_WORDS (256 - 200 - 2)
+#define DIB9000_MSG_CACHE_SIZE 2
+                       u16 message_cache[DIB9000_MSG_CACHE_SIZE][MBX_MAX_WORDS];
+                       u8 fw_is_running;
+               } risc;
+       } platform;
+
+       union {                 /* common for all platforms */
+               struct {
+                       struct dib9000_config cfg;
+               } d9;
+       } chip;
+
+       struct dvb_frontend *fe[MAX_NUMBER_OF_FRONTENDS];
+       u16 component_bus_speed;
+};
+
+u32 fe_info[44] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0
+};
+
+enum dib9000_power_mode {
+       DIB9000_POWER_ALL = 0,
+
+       DIB9000_POWER_NO,
+       DIB9000_POWER_INTERF_ANALOG_AGC,
+       DIB9000_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD,
+       DIB9000_POWER_COR4_CRY_ESRAM_MOUT_NUD,
+       DIB9000_POWER_INTERFACE_ONLY,
+};
+
+enum dib9000_out_messages {
+       OUT_MSG_HBM_ACK,
+       OUT_MSG_HOST_BUF_FAIL,
+       OUT_MSG_REQ_VERSION,
+       OUT_MSG_BRIDGE_I2C_W,
+       OUT_MSG_BRIDGE_I2C_R,
+       OUT_MSG_BRIDGE_APB_W,
+       OUT_MSG_BRIDGE_APB_R,
+       OUT_MSG_SCAN_CHANNEL,
+       OUT_MSG_MONIT_DEMOD,
+       OUT_MSG_CONF_GPIO,
+       OUT_MSG_DEBUG_HELP,
+       OUT_MSG_SUBBAND_SEL,
+       OUT_MSG_ENABLE_TIME_SLICE,
+       OUT_MSG_FE_FW_DL,
+       OUT_MSG_FE_CHANNEL_SEARCH,
+       OUT_MSG_FE_CHANNEL_TUNE,
+       OUT_MSG_FE_SLEEP,
+       OUT_MSG_FE_SYNC,
+       OUT_MSG_CTL_MONIT,
+
+       OUT_MSG_CONF_SVC,
+       OUT_MSG_SET_HBM,
+       OUT_MSG_INIT_DEMOD,
+       OUT_MSG_ENABLE_DIVERSITY,
+       OUT_MSG_SET_OUTPUT_MODE,
+       OUT_MSG_SET_PRIORITARY_CHANNEL,
+       OUT_MSG_ACK_FRG,
+       OUT_MSG_INIT_PMU,
+};
+
+enum dib9000_in_messages {
+       IN_MSG_DATA,
+       IN_MSG_FRAME_INFO,
+       IN_MSG_CTL_MONIT,
+       IN_MSG_ACK_FREE_ITEM,
+       IN_MSG_DEBUG_BUF,
+       IN_MSG_MPE_MONITOR,
+       IN_MSG_RAWTS_MONITOR,
+       IN_MSG_END_BRIDGE_I2C_RW,
+       IN_MSG_END_BRIDGE_APB_RW,
+       IN_MSG_VERSION,
+       IN_MSG_END_OF_SCAN,
+       IN_MSG_MONIT_DEMOD,
+       IN_MSG_ERROR,
+       IN_MSG_FE_FW_DL_DONE,
+       IN_MSG_EVENT,
+       IN_MSG_ACK_CHANGE_SVC,
+       IN_MSG_HBM_PROF,
+};
+
+/* memory_access requests */
+#define FE_MM_W_CHANNEL                   0
+#define FE_MM_W_FE_INFO                   1
+#define FE_MM_RW_SYNC                     2
+
+#define FE_SYNC_CHANNEL          1
+#define FE_SYNC_W_GENERIC_MONIT         2
+#define FE_SYNC_COMPONENT_ACCESS 3
+
+#define FE_MM_R_CHANNEL_SEARCH_STATE      3
+#define FE_MM_R_CHANNEL_UNION_CONTEXT     4
+#define FE_MM_R_FE_INFO                   5
+#define FE_MM_R_FE_MONITOR                6
+
+#define FE_MM_W_CHANNEL_HEAD              7
+#define FE_MM_W_CHANNEL_UNION             8
+#define FE_MM_W_CHANNEL_CONTEXT           9
+#define FE_MM_R_CHANNEL_UNION            10
+#define FE_MM_R_CHANNEL_CONTEXT          11
+#define FE_MM_R_CHANNEL_TUNE_STATE       12
+
+#define FE_MM_R_GENERIC_MONITORING_SIZE         13
+#define FE_MM_W_GENERIC_MONITORING          14
+#define FE_MM_R_GENERIC_MONITORING          15
+
+#define FE_MM_W_COMPONENT_ACCESS         16
+#define FE_MM_RW_COMPONENT_ACCESS_BUFFER 17
+static int dib9000_risc_apb_access_read(struct dib9000_state *state, u32 address, u16 attribute, const u8 * tx, u32 txlen,
+                                       u8 * b, u32 len);
+static int dib9000_risc_apb_access_write(struct dib9000_state *state, u32 address, u16 attribute, const u8 * b, u32 len);
+
+static u16 to_fw_output_mode(u16 mode)
+{
+       switch (mode) {
+       case OUTMODE_HIGH_Z:
+               return 0;
+       case OUTMODE_MPEG2_PAR_GATED_CLK:
+               return 4;
+       case OUTMODE_MPEG2_PAR_CONT_CLK:
+               return 8;
+       case OUTMODE_MPEG2_SERIAL:
+               return 16;
+       case OUTMODE_DIVERSITY:
+               return 128;
+       case OUTMODE_MPEG2_FIFO:
+               return 2;
+       case OUTMODE_ANALOG_ADC:
+               return 1;
+       default:
+               return 0;
+       }
+}
+
+static u16 dib9000_read16_attr(struct dib9000_state *state, u16 reg, u8 * b, u32 len, u16 attribute)
+{
+       u32 chunk_size = 126;
+       u32 l;
+       int ret;
+       u8 wb[2] = { reg >> 8, reg & 0xff };
+       struct i2c_msg msg[2] = {
+               {.addr = state->i2c.i2c_addr >> 1,.flags = 0,.buf = wb,.len = 2},
+               {.addr = state->i2c.i2c_addr >> 1,.flags = I2C_M_RD,.buf = b,.len = len},
+       };
+
+       if (state->platform.risc.fw_is_running && (reg < 1024))
+               return dib9000_risc_apb_access_read(state, reg, attribute, NULL, 0, b, len);
+
+       if (attribute & DATA_BUS_ACCESS_MODE_8BIT)
+               wb[0] |= (1 << 5);
+       if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
+               wb[0] |= (1 << 4);
+
+       do {
+               l = len < chunk_size ? len : chunk_size;
+               msg[1].len = l;
+               msg[1].buf = b;
+               ret = i2c_transfer(state->i2c.i2c_adap, msg, 2) != 2 ? -EREMOTEIO : 0;
+               if (ret != 0) {
+                       dprintk("i2c read error on %d", reg);
+                       return -EREMOTEIO;
+               }
+
+               b += l;
+               len -= l;
+
+               if (!(attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT))
+                       reg += l / 2;
+       } while ((ret == 0) && len);
+
+       return 0;
+}
+
+static u16 dib9000_i2c_read16(struct i2c_device *i2c, u16 reg)
+{
+       u8 b[2];
+       u8 wb[2] = { reg >> 8, reg & 0xff };
+       struct i2c_msg msg[2] = {
+               {.addr = i2c->i2c_addr >> 1,.flags = 0,.buf = wb,.len = 2},
+               {.addr = i2c->i2c_addr >> 1,.flags = I2C_M_RD,.buf = b,.len = 2},
+       };
+
+       if (i2c_transfer(i2c->i2c_adap, msg, 2) != 2) {
+               dprintk("read register %x error", reg);
+               return 0;
+       }
+
+       return (b[0] << 8) | b[1];
+}
+
+static inline u16 dib9000_read_word(struct dib9000_state *state, u16 reg)
+{
+       u8 b[2];
+       if (dib9000_read16_attr(state, reg, b, 2, 0) != 0)
+               return 0;
+       return (b[0] << 8 | b[1]);
+}
+
+static inline u16 dib9000_read_word_attr(struct dib9000_state *state, u16 reg, u16 attribute)
+{
+       u8 b[2];
+       if (dib9000_read16_attr(state, reg, b, 2, attribute) != 0)
+               return 0;
+       return (b[0] << 8 | b[1]);
+}
+
+#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)
+
+static u16 dib9000_write16_attr(struct dib9000_state *state, u16 reg, const u8 * buf, u32 len, u16 attribute)
+{
+       u8 b[255];
+       u32 chunk_size = 126;
+       u32 l;
+       int ret;
+
+       struct i2c_msg msg = {
+               .addr = state->i2c.i2c_addr >> 1,.flags = 0,.buf = b,.len = len + 2
+       };
+
+       if (state->platform.risc.fw_is_running && (reg < 1024)) {
+               if (dib9000_risc_apb_access_write
+                               (state, reg, DATA_BUS_ACCESS_MODE_16BIT | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT | attribute, buf, len) != 0)
+                       return -EINVAL;
+               return 0;
+       }
+
+       b[0] = (reg >> 8) & 0xff;
+       b[1] = (reg) & 0xff;
+
+       if (attribute & DATA_BUS_ACCESS_MODE_8BIT)
+               b[0] |= (1 << 5);
+       if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
+               b[0] |= (1 << 4);
+
+       do {
+               l = len < chunk_size ? len : chunk_size;
+               msg.len = l + 2;
+               memcpy(&b[2], buf, l);
+
+               ret = i2c_transfer(state->i2c.i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+
+               buf += l;
+               len -= l;
+
+               if (!(attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT))
+                       reg += l / 2;
+       } while ((ret == 0) && len);
+
+       return ret;
+}
+
+static int dib9000_i2c_write16(struct i2c_device *i2c, u16 reg, u16 val)
+{
+       u8 b[4] = { (reg >> 8) & 0xff, reg & 0xff, (val >> 8) & 0xff, val & 0xff };
+       struct i2c_msg msg = {
+               .addr = i2c->i2c_addr >> 1,.flags = 0,.buf = b,.len = 4
+       };
+
+       return i2c_transfer(i2c->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+}
+
+static inline int dib9000_write_word(struct dib9000_state *state, u16 reg, u16 val)
+{
+       u8 b[2] = { val >> 8, val & 0xff };
+       return dib9000_write16_attr(state, reg, b, 2, 0);
+}
+
+static inline int dib9000_write_word_attr(struct dib9000_state *state, u16 reg, u16 val, u16 attribute)
+{
+       u8 b[2] = { val >> 8, val & 0xff };
+       return dib9000_write16_attr(state, reg, b, 2, attribute);
+}
+
+#define dib9000_write(state, reg, buf, len) dib9000_write16_attr(state, reg, buf, len, 0)
+#define dib9000_write16_noinc(state, reg, buf, len) dib9000_write16_attr(state, reg, buf, len, DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT)
+#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))
+
+#define dib9000_mbx_send(state, id, data, len) dib9000_mbx_send_attr(state, id, data, len, 0)
+#define dib9000_mbx_get_message(state, id, msg, len) dib9000_mbx_get_message_attr(state, id, msg, len, 0)
+
+#define MAC_IRQ      (1 << 1)
+#define IRQ_POL_MSK  (1 << 4)
+
+#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)
+#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)
+
+static void dib9000_risc_mem_setup_cmd(struct dib9000_state *state, u32 addr, u32 len, u8 reading)
+{
+       u8 b[14] = { 0 };
+
+//     dprintk("%d memcmd: %d %d %d\n", state->fe_id, addr, addr+len, len);
+//     b[0] = 0 << 7;
+       b[1] = 1;
+
+//     b[2] = 0; // 1057
+//     b[3] = 0;
+       b[4] = (u8) (addr >> 8);        // 1058
+       b[5] = (u8) (addr & 0xff);
+
+//     b[10] = 0;        // 1061
+//     b[11] = 0;
+       b[12] = (u8) (addr >> 8);       // 1062
+       b[13] = (u8) (addr & 0xff);
+
+       addr += len;
+//     b[6] = 0;      // 1059
+//     b[7] = 0;
+       b[8] = (u8) (addr >> 8);        // 1060
+       b[9] = (u8) (addr & 0xff);
+
+       dib9000_write(state, 1056, b, 14);
+       if (reading)
+               dib9000_write_word(state, 1056, (1 << 15) | 1);
+       state->platform.risc.memcmd = -1;       /* if it was called directly reset it - to force a future setup-call to set it */
+}
+
+static void dib9000_risc_mem_setup(struct dib9000_state *state, u8 cmd)
+{
+       struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[cmd & 0x7f];
+       /* decide whether we need to "refresh" the memory controller */
+       if (state->platform.risc.memcmd == cmd &&       /* same command */
+                       !(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 */
+               return;
+       dib9000_risc_mem_setup_cmd(state, m->addr, m->size, cmd & 0x80);
+       state->platform.risc.memcmd = cmd;
+}
+
+static int dib9000_risc_mem_read(struct dib9000_state *state, u8 cmd, u8 * b, u16 len)
+{
+       if (!state->platform.risc.fw_is_running)
+               return -EIO;
+
+       DibAcquireLock(&state->platform.risc.mem_lock);
+       dib9000_risc_mem_setup(state, cmd | 0x80);
+       dib9000_risc_mem_read_chunks(state, b, len);
+       DibReleaseLock(&state->platform.risc.mem_lock);
+       return 0;
+}
+
+static int dib9000_risc_mem_write(struct dib9000_state *state, u8 cmd, const u8 * b)
+{
+       struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[cmd];
+       if (!state->platform.risc.fw_is_running)
+               return -EIO;
+
+       DibAcquireLock(&state->platform.risc.mem_lock);
+       dib9000_risc_mem_setup(state, cmd);
+       dib9000_risc_mem_write_chunks(state, b, m->size);
+       DibReleaseLock(&state->platform.risc.mem_lock);
+       return 0;
+}
+
+static int dib9000_firmware_download(struct dib9000_state *state, u8 risc_id, u16 key, const u8 * code, u32 len)
+{
+       u16 offs;
+
+       if (risc_id == 1)
+               offs = 16;
+       else
+               offs = 0;
+
+       /* config crtl reg */
+       dib9000_write_word(state, 1024 + offs, 0x000f);
+       dib9000_write_word(state, 1025 + offs, 0);
+       dib9000_write_word(state, 1031 + offs, key);
+
+       dprintk("going to download %dB of microcode", len);
+       if (dib9000_write16_noinc(state, 1026 + offs, (u8 *) code, (u16) len) != 0) {
+               dprintk("error while downloading microcode for RISC %c", 'A' + risc_id);
+               return -EIO;
+       }
+
+       dprintk("Microcode for RISC %c loaded", 'A' + risc_id);
+
+       return 0;
+}
+
+static int dib9000_mbx_host_init(struct dib9000_state *state, u8 risc_id)
+{
+       u16 mbox_offs;
+       u16 reset_reg;
+       u16 tries = 1000;
+
+       if (risc_id == 1)
+               mbox_offs = 16;
+       else
+               mbox_offs = 0;
+
+       /* Reset mailbox  */
+       dib9000_write_word(state, 1027 + mbox_offs, 0x8000);
+
+       /* Read reset status */
+       do {
+               reset_reg = dib9000_read_word(state, 1027 + mbox_offs);
+               msleep(100);
+       } while ((reset_reg & 0x8000) && --tries);
+
+       if (reset_reg & 0x8000) {
+               dprintk("MBX: init ERROR, no response from RISC %c", 'A' + risc_id);
+               return -EIO;
+       }
+       dprintk("MBX: initialized");
+       return 0;
+}
+
+#define MAX_MAILBOX_TRY 100
+static int dib9000_mbx_send_attr(struct dib9000_state *state, u8 id, u16 * data, u8 len, u16 attr)
+{
+       u8 ret = 0, *d, b[2];
+       u16 tmp;
+       u16 size;
+       u32 i;
+
+       if (!state->platform.risc.fw_is_running)
+               return -EINVAL;
+
+       DibAcquireLock(&state->platform.risc.mbx_if_lock);
+       tmp = MAX_MAILBOX_TRY;
+       do {
+               size = dib9000_read_word_attr(state, 1043, attr) & 0xff;
+               if ((size + len + 1) > MBX_MAX_WORDS && --tmp) {
+                       dprintk("MBX: RISC mbx full, retrying");
+                       msleep(100);
+               } else
+                       break;
+       } while (1);
+
+       //dprintk( "MBX: size: %d", size);
+
+       if (tmp == 0) {
+               ret = -EINVAL;
+               goto out;
+       }
+#ifdef DUMP_MSG
+       dprintk("--> %02x %d ", id, len + 1);
+       for (i = 0; i < len; i++)
+               dprintk("%04x ", data[i]);
+       dprintk("\n");
+#endif
+
+       /* byte-order conversion - works on big (where it is not necessary) or little endian */
+       d = (u8 *) data;
+       for (i = 0; i < len; i++) {
+               tmp = data[i];
+               *d++ = tmp >> 8;
+               *d++ = tmp & 0xff;
+       }
+
+       /* write msg */
+       b[0] = id;
+       b[1] = len + 1;
+       if (dib9000_write16_noinc_attr(state, 1045, b, 2, attr) != 0 || dib9000_write16_noinc_attr(state, 1045, (u8 *) data, len * 2, attr) != 0) {
+               ret = -EIO;
+               goto out;
+       }
+
+       /* update register nb_mes_in_RX */
+       ret = (u8) dib9000_write_word_attr(state, 1043, 1 << 14, attr);
+
+ out:
+       DibReleaseLock(&state->platform.risc.mbx_if_lock);
+
+       return ret;
+}
+
+static u8 dib9000_mbx_read(struct dib9000_state *state, u16 * data, u8 risc_id, u16 attr)
+{
+#ifdef DUMP_MSG
+       u16 *d = data;
+#endif
+
+       u16 tmp, i;
+       u8 size;
+       u8 mc_base;
+
+       if (!state->platform.risc.fw_is_running)
+               return 0;
+
+       DibAcquireLock(&state->platform.risc.mbx_if_lock);
+       if (risc_id == 1)
+               mc_base = 16;
+       else
+               mc_base = 0;
+
+       /* Length and type in the first word */
+       *data = dib9000_read_word_attr(state, 1029 + mc_base, attr);
+
+       size = *data & 0xff;
+       if (size <= MBX_MAX_WORDS) {
+               data++;
+               size--;         /* Initial word already read */
+
+               dib9000_read16_noinc_attr(state, 1029 + mc_base, (u8 *) data, size * 2, attr);
+
+               /* to word conversion */
+               for (i = 0; i < size; i++) {
+                       tmp = *data;
+                       *data = (tmp >> 8) | (tmp << 8);
+                       data++;
+               }
+
+#ifdef DUMP_MSG
+               dprintk("<-- ");
+               for (i = 0; i < size + 1; i++)
+                       dprintk("%04x ", d[i]);
+               dprintk("\n");
+#endif
+       } else {
+               dprintk("MBX: message is too big for message cache (%d), flushing message", size);
+               size--;         /* Initial word already read */
+               while (size--)
+                       dib9000_read16_noinc_attr(state, 1029 + mc_base, (u8 *) data, 2, attr);
+       }
+       /* Update register nb_mes_in_TX */
+       dib9000_write_word_attr(state, 1028 + mc_base, 1 << 14, attr);
+
+       DibReleaseLock(&state->platform.risc.mbx_if_lock);
+
+       return size + 1;
+}
+
+static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 size)
+{
+       u32 ts = data[1] << 16 | data[0];
+       char *b = (char *)&data[2];
+
+       b[2 * (size - 2) - 1] = '\0';   /* Bullet proof the buffer */
+       if (*b == '~') {
+               b++;
+               dprintk(b);
+       } else
+               dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<emtpy>");
+       return 1;
+}
+
+static int dib9000_mbx_fetch_to_cache(struct dib9000_state *state, u16 attr)
+{
+       int i;
+       u8 size;
+       u16 *block;
+       /* find a free slot */
+       for (i = 0; i < DIB9000_MSG_CACHE_SIZE; i++) {
+               block = state->platform.risc.message_cache[i];
+               if (*block == 0) {
+                       size = dib9000_mbx_read(state, block, 1, attr);
+
+//                     dprintk( "MBX: fetched %04x message to cache", *block);
+
+                       switch (*block >> 8) {
+                       case IN_MSG_DEBUG_BUF:
+                               dib9000_risc_debug_buf(state, block + 1, size); /* debug-messages are going to be printed right away */
+                               *block = 0;     /* free the block */
+                               break;
+#if 0
+                       case IN_MSG_DATA:       /* FE-TRACE */
+                               dib9000_risc_data_process(state, block + 1, size);
+                               *block = 0;
+                               break;
+#endif
+                       default:
+                               break;
+                       }
+
+                       return 1;
+               }
+       }
+       dprintk("MBX: no free cache-slot found for new message...");
+       return -1;
+}
+
+static u8 dib9000_mbx_count(struct dib9000_state *state, u8 risc_id, u16 attr)
+{
+       if (risc_id == 0)
+               return (u8) (dib9000_read_word_attr(state, 1028, attr) >> 10) & 0x1f;   /* 5 bit field */
+       else
+               return (u8) (dib9000_read_word_attr(state, 1044, attr) >> 8) & 0x7f;    /* 7 bit field */
+}
+
+static int dib9000_mbx_process(struct dib9000_state *state, u16 attr)
+{
+       int ret = 0;
+       u16 tmp;
+
+       if (!state->platform.risc.fw_is_running)
+               return -1;
+
+       DibAcquireLock(&state->platform.risc.mbx_lock);
+
+       if (dib9000_mbx_count(state, 1, attr))  /* 1=RiscB */
+               ret = dib9000_mbx_fetch_to_cache(state, attr);
+
+       tmp = dib9000_read_word_attr(state, 1229, attr);        /* Clear the IRQ */
+//     if (tmp)
+//             dprintk( "cleared IRQ: %x", tmp);
+       DibReleaseLock(&state->platform.risc.mbx_lock);
+
+       return ret;
+}
+
+static int dib9000_mbx_get_message_attr(struct dib9000_state *state, u16 id, u16 * msg, u8 * size, u16 attr)
+{
+       u8 i;
+       u16 *block;
+       u16 timeout = 30;
+
+       *msg = 0;
+       do {
+               /* dib9000_mbx_get_from_cache(); */
+               for (i = 0; i < DIB9000_MSG_CACHE_SIZE; i++) {
+                       block = state->platform.risc.message_cache[i];
+                       if ((*block >> 8) == id) {
+                               *size = (*block & 0xff) - 1;
+                               memcpy(msg, block + 1, (*size) * 2);
+                               *block = 0;     /* free the block */
+                               i = 0;  /* signal that we found a message */
+                               break;
+                       }
+               }
+
+               if (i == 0)
+                       break;
+
+               if (dib9000_mbx_process(state, attr) == -1)     /* try to fetch one message - if any */
+                       return -1;
+
+       } while (--timeout);
+
+       if (timeout == 0) {
+               dprintk("waiting for message %d timed out", id);
+               return -1;
+       }
+
+       return i == 0;
+}
+
+static int dib9000_risc_check_version(struct dib9000_state *state)
+{
+       u8 r[4];
+       u8 size;
+       u16 fw_version = 0;
+
+       if (dib9000_mbx_send(state, OUT_MSG_REQ_VERSION, &fw_version, 1) != 0)
+               return -EIO;
+
+       if (dib9000_mbx_get_message(state, IN_MSG_VERSION, (u16 *) r, &size) < 0)
+               return -EIO;
+
+       fw_version = (r[0] << 8) | r[1];
+       dprintk("RISC: ver: %d.%02d (IC: %d)", fw_version >> 10, fw_version & 0x3ff, (r[2] << 8) | r[3]);
+
+       if ((fw_version >> 10) != 7)
+               return -EINVAL;
+
+       switch (fw_version & 0x3ff) {
+       case 11:
+       case 12:
+       case 14:
+       case 15:
+       case 16:
+       case 17:
+               break;
+       default:
+               dprintk("RISC: invalid firmware version");
+               return -EINVAL;
+       }
+
+       dprintk("RISC: valid firmware version");
+       return 0;
+}
+
+static int dib9000_fw_boot(struct dib9000_state *state, const u8 * codeA, u32 lenA, const u8 * codeB, u32 lenB)
+{
+       /* Reconfig pool mac ram */
+       dib9000_write_word(state, 1225, 0x02);  /* A: 8k C, 4 k D - B: 32k C 6 k D - IRAM 96k */
+       dib9000_write_word(state, 1226, 0x05);
+
+       /* Toggles IP crypto to Host APB interface. */
+       dib9000_write_word(state, 1542, 1);
+
+       /* Set jump and no jump in the dma box */
+       dib9000_write_word(state, 1074, 0);
+       dib9000_write_word(state, 1075, 0);
+
+       /* Set MAC as APB Master. */
+       dib9000_write_word(state, 1237, 0);
+
+       /* Reset the RISCs */
+       if (codeA != NULL)
+               dib9000_write_word(state, 1024, 2);
+       else
+               dib9000_write_word(state, 1024, 15);
+       if (codeB != NULL)
+               dib9000_write_word(state, 1040, 2);
+
+       if (codeA != NULL)
+               dib9000_firmware_download(state, 0, 0x1234, codeA, lenA);
+       if (codeB != NULL)
+               dib9000_firmware_download(state, 1, 0x1234, codeB, lenB);
+
+       /* Run the RISCs */
+       if (codeA != NULL)
+               dib9000_write_word(state, 1024, 0);
+       if (codeB != NULL)
+               dib9000_write_word(state, 1040, 0);
+
+       if (codeA != NULL)
+               if (dib9000_mbx_host_init(state, 0) != 0)
+                       return -EIO;
+       if (codeB != NULL)
+               if (dib9000_mbx_host_init(state, 1) != 0)
+                       return -EIO;
+
+       msleep(100);
+       state->platform.risc.fw_is_running = 1;
+
+       if (dib9000_risc_check_version(state) != 0)
+               return -EINVAL;
+
+       state->platform.risc.memcmd = 0xff;
+       return 0;
+}
+
+static u16 dib9000_identify(struct i2c_device *client)
+{
+       u16 value;
+
+       if ((value = dib9000_i2c_read16(client, 896)) != 0x01b3) {
+               dprintk("wrong Vendor ID (0x%x)", value);
+               return 0;
+       }
+
+       value = dib9000_i2c_read16(client, 897);
+       if (value != 0x4000 && value != 0x4001 && value != 0x4002 && value != 0x4003 && value != 0x4004 && value != 0x4005) {
+               dprintk("wrong Device ID (0x%x)", value);
+               return 0;
+       }
+
+       /* protect this driver to be used with 7000PC */
+       if (value == 0x4000 && dib9000_i2c_read16(client, 769) == 0x4000) {
+               dprintk("this driver does not work with DiB7000PC");
+               return 0;
+       }
+
+       switch (value) {
+       case 0x4000:
+               dprintk("found DiB7000MA/PA/MB/PB");
+               break;
+       case 0x4001:
+               dprintk("found DiB7000HC");
+               break;
+       case 0x4002:
+               dprintk("found DiB7000MC");
+               break;
+       case 0x4003:
+               dprintk("found DiB9000A");
+               break;
+       case 0x4004:
+               dprintk("found DiB9000H");
+               break;
+       case 0x4005:
+               dprintk("found DiB9000M");
+               break;
+       }
+
+       return value;
+}
+
+static void dib9000_set_power_mode(struct dib9000_state *state, enum dib9000_power_mode mode)
+{
+       /* by default everything is going to be powered off */
+       u16 reg_903 = 0x3fff, reg_904 = 0xffff, reg_905 = 0xffff, reg_906;
+       u8 offset;
+
+       if (state->revision == 0x4003 || state->revision == 0x4004 || state->revision == 0x4005)
+               offset = 1;
+       else
+               offset = 0;
+
+       reg_906 = dib9000_read_word(state, 906 + offset) | 0x3; /* keep settings for RISC */
+
+       /* now, depending on the requested mode, we power on */
+       switch (mode) {
+               /* power up everything in the demod */
+       case DIB9000_POWER_ALL:
+               reg_903 = 0x0000;
+               reg_904 = 0x0000;
+               reg_905 = 0x0000;
+               reg_906 = 0x0000;
+               break;
+
+               /* just leave power on the control-interfaces: GPIO and (I2C or SDIO or SRAM) */
+       case DIB9000_POWER_INTERFACE_ONLY:      /* TODO power up either SDIO or I2C or SRAM */
+               reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 2));
+               break;
+
+       case DIB9000_POWER_INTERF_ANALOG_AGC:
+               reg_903 &= ~((1 << 15) | (1 << 14) | (1 << 11) | (1 << 10));
+               reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 2));
+               reg_906 &= ~((1 << 0));
+               break;
+
+       case DIB9000_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD:
+               reg_903 = 0x0000;
+               reg_904 = 0x801f;
+               reg_905 = 0x0000;
+               reg_906 &= ~((1 << 0));
+               break;
+
+       case DIB9000_POWER_COR4_CRY_ESRAM_MOUT_NUD:
+               reg_903 = 0x0000;
+               reg_904 = 0x8000;
+               reg_905 = 0x010b;
+               reg_906 &= ~((1 << 0));
+               break;
+       default:
+       case DIB9000_POWER_NO:
+               break;
+       }
+
+       /* always power down unused parts */
+       if (!state->platform.host.mobile_mode)
+               reg_904 |= (1 << 7) | (1 << 6) | (1 << 4) | (1 << 2) | (1 << 1);
+
+       /* P_sdio_select_clk = 0 on MC and after */
+       if (state->revision != 0x4000)
+               reg_906 <<= 1;
+
+       dib9000_write_word(state, 903 + offset, reg_903);
+       dib9000_write_word(state, 904 + offset, reg_904);
+       dib9000_write_word(state, 905 + offset, reg_905);
+       dib9000_write_word(state, 906 + offset, reg_906);
+}
+
+static int dib9000_fw_reset(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+
+       dib9000_write_word(state, 1817, 0x0003);        // SRAM read lead in + P_host_rdy_cmos=1
+
+       dib9000_write_word(state, 1227, 1);
+       dib9000_write_word(state, 1227, 0);
+
+       switch ((state->revision = dib9000_identify(&state->i2c))) {
+       case 0x4003:
+       case 0x4004:
+       case 0x4005:
+               state->reg_offs = 1;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       /* reset the i2c-master to use the host interface */
+       dibx000_reset_i2c_master(&state->i2c_master);
+
+       dib9000_set_power_mode(state, DIB9000_POWER_ALL);
+
+       /* unforce divstr regardless whether i2c enumeration was done or not */
+       dib9000_write_word(state, 1794, dib9000_read_word(state, 1794) & ~(1 << 1));
+       dib9000_write_word(state, 1796, 0);
+       dib9000_write_word(state, 1805, 0x805);
+
+       /* restart all parts */
+       dib9000_write_word(state, 898, 0xffff);
+       dib9000_write_word(state, 899, 0xffff);
+       dib9000_write_word(state, 900, 0x0001);
+       dib9000_write_word(state, 901, 0xff19);
+       dib9000_write_word(state, 902, 0x003c);
+
+       dib9000_write_word(state, 898, 0);
+       dib9000_write_word(state, 899, 0);
+       dib9000_write_word(state, 900, 0);
+       dib9000_write_word(state, 901, 0);
+       dib9000_write_word(state, 902, 0);
+
+       dib9000_write_word(state, 911, state->chip.d9.cfg.if_drives);
+
+       dib9000_set_power_mode(state, DIB9000_POWER_INTERFACE_ONLY);
+
+       return 0;
+}
+
+static int dib9000_risc_apb_access_read(struct dib9000_state *state, u32 address, u16 attribute, const u8 * tx, u32 txlen,
+                                       u8 * b, u32 len)
+{
+       u16 mb[10];
+       u8 i, s;
+
+       if (address >= 1024 || !state->platform.risc.fw_is_running)
+               return -EINVAL;
+
+       //dprintk( "APB access thru rd fw %d %x", address, attribute);
+
+       mb[0] = (u16) address;
+       mb[1] = len / 2;
+       dib9000_mbx_send_attr(state, OUT_MSG_BRIDGE_APB_R, mb, 2, attribute);
+       switch (dib9000_mbx_get_message_attr(state, IN_MSG_END_BRIDGE_APB_RW, mb, &s, attribute)) {
+       case 1:
+               s--;            // address
+               for (i = 0; i < s; i++) {
+                       b[i * 2] = (mb[i + 1] >> 8) & 0xff;
+                       b[i * 2 + 1] = (mb[i + 1]) & 0xff;
+               }
+               return 0;
+       default:
+               return -EIO;
+       }
+       return -EIO;
+}
+
+static int dib9000_risc_apb_access_write(struct dib9000_state *state, u32 address, u16 attribute, const u8 * b, u32 len)
+{
+       u16 mb[10];
+       u8 s, i;
+
+       if (address >= 1024 || !state->platform.risc.fw_is_running)
+               return -EINVAL;
+
+       //dprintk( "APB access thru wr fw %d %x", address, attribute);
+
+       mb[0] = (unsigned short)address;
+       for (i = 0; i < len && i < 20; i += 2)  // 20 bytes max
+               mb[1 + (i / 2)] = (b[i] << 8 | b[i + 1]);
+
+       dib9000_mbx_send_attr(state, OUT_MSG_BRIDGE_APB_W, mb, 1 + len / 2, attribute);
+       return dib9000_mbx_get_message_attr(state, IN_MSG_END_BRIDGE_APB_RW, mb, &s, attribute) == 1 ? 0 : -EINVAL;
+}
+
+static int dib9000_fw_memmbx_sync(struct dib9000_state *state, u8 i)
+{
+       u8 index_loop = 10;
+
+       if (!state->platform.risc.fw_is_running)
+               return 0;
+       dib9000_risc_mem_write(state, FE_MM_RW_SYNC, &i);
+       do {
+               dib9000_risc_mem_read(state, FE_MM_RW_SYNC, &i, 1);
+       } while (i && index_loop--);
+
+       if (index_loop > 0)
+               return 0;
+       return -EIO;
+}
+
+static int dib9000_fw_init(struct dib9000_state *state)
+{
+       struct dibGPIOFunction *f;
+       u16 b[40] = { 0 };
+       u8 i;
+       u8 size;
+
+       if (dib9000_fw_boot(state, NULL, 0, state->chip.d9.cfg.microcode_B_fe_buffer, state->chip.d9.cfg.microcode_B_fe_size) != 0)
+               //if (dib9000_fw_boot(state, microcode_A_buffer, microcode_A_size, microcode_B_buffer, microcode_B_size) != 0)
+               return -EIO;
+
+       /* initialize the firmware */
+       for (i = 0; i < ARRAY_SIZE(state->chip.d9.cfg.gpio_function); i++) {
+               f = &state->chip.d9.cfg.gpio_function[i];
+               if (f->mask) {
+                       switch (f->function) {
+                       case BOARD_GPIO_FUNCTION_COMPONENT_ON:
+                               b[0] = (u16) f->mask;
+                               b[1] = (u16) f->direction;
+                               b[2] = (u16) f->value;
+                               break;
+                       case BOARD_GPIO_FUNCTION_COMPONENT_OFF:
+                               b[3] = (u16) f->mask;
+                               b[4] = (u16) f->direction;
+                               b[5] = (u16) f->value;
+                               break;
+                       }
+               }
+       }
+       if (dib9000_mbx_send(state, OUT_MSG_CONF_GPIO, b, 15) != 0)
+               return -EIO;
+
+       /* subband */
+       b[0] = state->chip.d9.cfg.subband.size; /* type == 0 -> GPIO - PWM not yet supported */
+       for (i = 0; i < state->chip.d9.cfg.subband.size; i++) {
+               b[1 + i * 4] = state->chip.d9.cfg.subband.subband[i].f_mhz;
+               b[2 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.mask;
+               b[3 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.direction;
+               b[4 + i * 4] = (u16) state->chip.d9.cfg.subband.subband[i].gpio.value;
+               //dprintk( "SBS: %d %d %x %x %x\n", i, b[1 + i*4], b[2 + i*4], b[3 + i*4], b[4 + i*4]);
+       }
+       b[1 + i * 4] = 0;       /* fe_id */
+       if (dib9000_mbx_send(state, OUT_MSG_SUBBAND_SEL, b, 2 + 4 * i) != 0)
+               return -EIO;
+
+       /* 0 - id, 1 - no_of_frontends */
+       b[0] = (0 << 8) | 1;
+       /* 0 = i2c-address demod, 0 = tuner */
+       b[1] = (0 << 8) | (0);  //st->i2c_addr ) );
+       b[2] = (u16) (((state->chip.d9.cfg.xtal_clock_khz * 1000) >> 16) & 0xffff);
+       b[3] = (u16) (((state->chip.d9.cfg.xtal_clock_khz * 1000)) & 0xffff);
+       b[4] = (u16) ((state->chip.d9.cfg.vcxo_timer >> 16) & 0xffff);
+       b[5] = (u16) ((state->chip.d9.cfg.vcxo_timer) & 0xffff);
+       b[6] = (u16) ((state->chip.d9.cfg.timing_frequency >> 16) & 0xffff);
+       b[7] = (u16) ((state->chip.d9.cfg.timing_frequency) & 0xffff);
+       b[29] = state->chip.d9.cfg.if_drives;
+       if (dib9000_mbx_send(state, OUT_MSG_INIT_DEMOD, b, ARRAY_SIZE(b)) != 0)
+               return -EIO;
+
+       if (dib9000_mbx_send(state, OUT_MSG_FE_FW_DL, NULL, 0) != 0)
+               return -EIO;
+
+       if (dib9000_mbx_get_message(state, IN_MSG_FE_FW_DL_DONE, b, &size) < 0)
+               return -EIO;
+
+       if (size > ARRAY_SIZE(b)) {
+               dprintk("error : firmware returned %dbytes needed but the used buffer has only %dbytes\n Firmware init ABORTED", size, (int)ARRAY_SIZE(b));
+               return -EINVAL;
+       }
+
+       for (i = 0; i < size; i += 2) {
+               state->platform.risc.fe_mm[i / 2].addr = b[i + 0];
+               state->platform.risc.fe_mm[i / 2].size = b[i + 1];
+               //dprintk( "MM: %d %d %d", state->platform.risc.fe_mm[i/2].addr, state->platform.risc.fe_mm[i/2].size, ARRAY_SIZE(state->platform.risc.fe_mm));
+       }
+
+       return 0;
+}
+
+static void dib9000_fw_set_channel_head(struct dib9000_state *state, struct dvb_frontend_parameters *ch)
+{
+       u8 b[9];
+       u32 freq = state->fe[0]->dtv_property_cache.frequency / 1000;
+       if (state->fe_id % 2)
+               freq += 101;
+
+       b[0] = (u8) ((freq >> 0) & 0xff);
+       b[1] = (u8) ((freq >> 8) & 0xff);
+       b[2] = (u8) ((freq >> 16) & 0xff);
+       b[3] = (u8) ((freq >> 24) & 0xff);
+       b[4] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 0) & 0xff);
+       b[5] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 8) & 0xff);
+       b[6] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 16) & 0xff);
+       b[7] = (u8) ((state->fe[0]->dtv_property_cache.bandwidth_hz / 1000 >> 24) & 0xff);
+       b[8] = 0x80;            /* do not wait for CELL ID when doing autosearch */
+       if (state->fe[0]->dtv_property_cache.delivery_system == SYS_DVBT)
+               b[8] |= 1;
+       dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_HEAD, b);
+}
+
+static int dib9000_fw_get_channel(struct dvb_frontend *fe, struct dvb_frontend_parameters *channel)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       struct dibDVBTChannel {
+               s8 spectrum_inversion;
+
+               s8 nfft;
+               s8 guard;
+               s8 constellation;
+
+               s8 hrch;
+               s8 alpha;
+               s8 code_rate_hp;
+               s8 code_rate_lp;
+               s8 select_hp;
+
+               s8 intlv_native;
+       };
+       struct dibDVBTChannel ch;
+       int ret = 0;
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) {
+               goto error;
+               ret = -EIO;
+       }
+
+       dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_UNION, (u8 *) & ch, sizeof(struct dibDVBTChannel));
+
+       switch (ch.spectrum_inversion&0x7) {
+       case 1:
+               state->fe[0]->dtv_property_cache.inversion = INVERSION_ON;
+               break;
+       case 0:
+               state->fe[0]->dtv_property_cache.inversion = INVERSION_OFF;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.inversion = INVERSION_AUTO;
+               break;
+       }
+       switch (ch.nfft) {
+       case 0:
+               state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_2K;
+               break;
+       case 2:
+               state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_4K;
+               break;
+       case 1:
+               state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO;
+               break;
+       }
+       switch (ch.guard) {
+       case 0:
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_32;
+               break;
+       case 1:
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_16;
+               break;
+       case 2:
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
+               break;
+       case 3:
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_4;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO;
+               break;
+       }
+       switch (ch.constellation) {
+       case 2:
+               state->fe[0]->dtv_property_cache.modulation = QAM_64;
+               break;
+       case 1:
+               state->fe[0]->dtv_property_cache.modulation = QAM_16;
+               break;
+       case 0:
+               state->fe[0]->dtv_property_cache.modulation = QPSK;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.modulation = QAM_AUTO;
+               break;
+       }
+       switch (ch.hrch) {
+       case 0:
+               state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_NONE;
+               break;
+       case 1:
+               state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_1;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.hierarchy = HIERARCHY_AUTO;
+               break;
+       }
+       switch (ch.code_rate_hp) {
+       case 1:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_1_2;
+               break;
+       case 2:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_2_3;
+               break;
+       case 3:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_3_4;
+               break;
+       case 5:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_5_6;
+               break;
+       case 7:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_7_8;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.code_rate_HP = FEC_AUTO;
+               break;
+       }
+       switch (ch.code_rate_lp) {
+       case 1:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_1_2;
+               break;
+       case 2:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_2_3;
+               break;
+       case 3:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_3_4;
+               break;
+       case 5:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_5_6;
+               break;
+       case 7:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_7_8;
+               break;
+       default:
+       case -1:
+               state->fe[0]->dtv_property_cache.code_rate_LP = FEC_AUTO;
+               break;
+       }
+
+ error:
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+       return ret;
+}
+
+static int dib9000_fw_set_channel_union(struct dvb_frontend *fe, struct dvb_frontend_parameters *channel)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       struct dibDVBTChannel {
+               s8 spectrum_inversion;
+
+               s8 nfft;
+               s8 guard;
+               s8 constellation;
+
+               s8 hrch;
+               s8 alpha;
+               s8 code_rate_hp;
+               s8 code_rate_lp;
+               s8 select_hp;
+
+               s8 intlv_native;
+       };
+       struct dibDVBTChannel ch;
+
+       switch (state->fe[0]->dtv_property_cache.inversion) {
+       case INVERSION_ON:
+               ch.spectrum_inversion = 1;
+               break;
+       case INVERSION_OFF:
+               ch.spectrum_inversion = 0;
+               break;
+       default:
+       case INVERSION_AUTO:
+               ch.spectrum_inversion = -1;
+               break;
+       }
+       switch (state->fe[0]->dtv_property_cache.transmission_mode) {
+       case TRANSMISSION_MODE_2K:
+               ch.nfft = 0;
+               break;
+       case TRANSMISSION_MODE_4K:
+               ch.nfft = 2;
+               break;
+       case TRANSMISSION_MODE_8K:
+               ch.nfft = 1;
+               break;
+       default:
+       case TRANSMISSION_MODE_AUTO:
+               ch.nfft = 1;
+               break;
+       }
+       switch (state->fe[0]->dtv_property_cache.guard_interval) {
+       case GUARD_INTERVAL_1_32:
+               ch.guard = 0;
+               break;
+       case GUARD_INTERVAL_1_16:
+               ch.guard = 1;
+               break;
+       case GUARD_INTERVAL_1_8:
+               ch.guard = 2;
+               break;
+       case GUARD_INTERVAL_1_4:
+               ch.guard = 3;
+               break;
+       default:
+       case GUARD_INTERVAL_AUTO:
+               ch.guard = -1;
+               break;
+       }
+       switch (state->fe[0]->dtv_property_cache.modulation) {
+       case QAM_64:
+               ch.constellation = 2;
+               break;
+       case QAM_16:
+               ch.constellation = 1;
+               break;
+       case QPSK:
+               ch.constellation = 0;
+               break;
+       default:
+       case QAM_AUTO:
+               ch.constellation = -1;
+               break;
+       }
+       switch (state->fe[0]->dtv_property_cache.hierarchy) {
+       case HIERARCHY_NONE:
+               ch.hrch = 0;
+               break;
+       case HIERARCHY_1:
+       case HIERARCHY_2:
+       case HIERARCHY_4:
+               ch.hrch = 1;
+               break;
+       default:
+       case HIERARCHY_AUTO:
+               ch.hrch = -1;
+               break;
+       }
+       ch.alpha = 1;
+       switch (state->fe[0]->dtv_property_cache.code_rate_HP) {
+       case FEC_1_2:
+               ch.code_rate_hp = 1;
+               break;
+       case FEC_2_3:
+               ch.code_rate_hp = 2;
+               break;
+       case FEC_3_4:
+               ch.code_rate_hp = 3;
+               break;
+       case FEC_5_6:
+               ch.code_rate_hp = 5;
+               break;
+       case FEC_7_8:
+               ch.code_rate_hp = 7;
+               break;
+       default:
+       case FEC_AUTO:
+               ch.code_rate_hp = -1;
+               break;
+       }
+       switch (state->fe[0]->dtv_property_cache.code_rate_LP) {
+       case FEC_1_2:
+               ch.code_rate_lp = 1;
+               break;
+       case FEC_2_3:
+               ch.code_rate_lp = 2;
+               break;
+       case FEC_3_4:
+               ch.code_rate_lp = 3;
+               break;
+       case FEC_5_6:
+               ch.code_rate_lp = 5;
+               break;
+       case FEC_7_8:
+               ch.code_rate_lp = 7;
+               break;
+       default:
+       case FEC_AUTO:
+               ch.code_rate_lp = -1;
+               break;
+       }
+       ch.select_hp = 1;
+       ch.intlv_native = 1;
+
+       dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_UNION, (u8 *) & ch);
+
+       return 0;
+}
+
+static int dib9000_fw_tune(struct dvb_frontend *fe, struct dvb_frontend_parameters *ch)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       int ret = 10, search = state->channel_status.status == CHANNEL_STATUS_PARAMETERS_UNKNOWN;
+       s8 i;
+
+       switch (state->tune_state) {
+       case CT_DEMOD_START:
+               dib9000_fw_set_channel_head(state, ch);
+
+               /* write the channel context - a channel is initialized to 0, so it is OK */
+               dib9000_risc_mem_write(state, FE_MM_W_CHANNEL_CONTEXT, (u8 *) fe_info);
+               dib9000_risc_mem_write(state, FE_MM_W_FE_INFO, (u8 *) fe_info);
+
+               if (search)
+                       dib9000_mbx_send(state, OUT_MSG_FE_CHANNEL_SEARCH, NULL, 0);
+               else {
+                       dib9000_fw_set_channel_union(fe, ch);
+                       dib9000_mbx_send(state, OUT_MSG_FE_CHANNEL_TUNE, NULL, 0);
+               }
+               state->tune_state = CT_DEMOD_STEP_1;
+               break;
+       case CT_DEMOD_STEP_1:
+               if (search)
+                       dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_SEARCH_STATE, (u8 *) & i, 1);
+               else
+                       dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_TUNE_STATE, (u8 *) & i, 1);
+               switch (i) {    /* something happened */
+               case 0:
+                       break;
+               case -2:        /* tps locks are "slower" than MPEG locks -> even in autosearch data is OK here */
+                       if (search)
+                               state->status = FE_STATUS_DEMOD_SUCCESS;
+                       else {
+                               state->tune_state = CT_DEMOD_STOP;
+                               state->status = FE_STATUS_LOCKED;
+                       }
+                       break;
+               default:
+                       state->status = FE_STATUS_TUNE_FAILED;
+                       state->tune_state = CT_DEMOD_STOP;
+                       break;
+               }
+               break;
+       default:
+               ret = FE_CALLBACK_TIME_NEVER;
+               break;
+       }
+
+       return ret;
+}
+
+static int dib9000_fw_set_diversity_in(struct dvb_frontend *fe, int onoff)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 mode = (u16) onoff;
+       return dib9000_mbx_send(state, OUT_MSG_ENABLE_DIVERSITY, &mode, 1);
+}
+
+static int dib9000_fw_set_output_mode(struct dvb_frontend *fe, int mode)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 outreg, smo_mode;
+
+       dprintk("setting output mode for demod %p to %d", fe, mode);
+
+       switch (mode) {
+       case OUTMODE_MPEG2_PAR_GATED_CLK:       // STBs with parallel gated clock
+               outreg = (1 << 10);     /* 0x0400 */
+               break;
+       case OUTMODE_MPEG2_PAR_CONT_CLK:        // STBs with parallel continues clock
+               outreg = (1 << 10) | (1 << 6);  /* 0x0440 */
+               break;
+       case OUTMODE_MPEG2_SERIAL:      // STBs with serial input
+               outreg = (1 << 10) | (2 << 6) | (0 << 1);       /* 0x0482 */
+               break;
+       case OUTMODE_DIVERSITY:
+               outreg = (1 << 10) | (4 << 6);  /* 0x0500 */
+               break;
+       case OUTMODE_MPEG2_FIFO:        // e.g. USB feeding
+               outreg = (1 << 10) | (5 << 6);
+               break;
+       case OUTMODE_HIGH_Z:    // disable
+               outreg = 0;
+               break;
+       default:
+               dprintk("Unhandled output_mode passed to be set for demod %p", &state->fe[0]);
+               return -EINVAL;
+       }
+
+       dib9000_write_word(state, 1795, outreg);        // has to be written from outside
+
+       switch (mode) {
+       case OUTMODE_MPEG2_PAR_GATED_CLK:
+       case OUTMODE_MPEG2_PAR_CONT_CLK:
+       case OUTMODE_MPEG2_SERIAL:
+       case OUTMODE_MPEG2_FIFO:
+               smo_mode = (dib9000_read_word(state, 295) & 0x0010) | (1 << 1);
+               if (state->chip.d9.cfg.output_mpeg2_in_188_bytes)
+                       smo_mode |= (1 << 5);
+               dib9000_write_word(state, 295, smo_mode);
+               break;
+       }
+
+       outreg = to_fw_output_mode(mode);
+       return dib9000_mbx_send(state, OUT_MSG_SET_OUTPUT_MODE, &outreg, 1);
+}
+
+static int dib9000_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
+{
+       struct dib9000_state *state = i2c_get_adapdata(i2c_adap);
+       u16 i, len, t, index_msg;
+
+       for (index_msg = 0; index_msg < num; index_msg++) {
+               if (msg[index_msg].flags & I2C_M_RD) {  /* read */
+                       len = msg[index_msg].len;
+                       if (len > 16)
+                               len = 16;
+
+                       if (dib9000_read_word(state, 790) != 0)
+                               dprintk("TunerITF: read busy");
+
+                       dib9000_write_word(state, 784, (u16) (msg[index_msg].addr));
+                       dib9000_write_word(state, 787, (len / 2) - 1);
+                       dib9000_write_word(state, 786, 1);      /* start read */
+
+                       i = 1000;
+                       while (dib9000_read_word(state, 790) != (len / 2) && i)
+                               i--;
+
+                       if (i == 0)
+                               dprintk("TunerITF: read failed");
+
+                       for (i = 0; i < len; i += 2) {
+                               t = dib9000_read_word(state, 785);
+                               msg[index_msg].buf[i] = (t >> 8) & 0xff;
+                               msg[index_msg].buf[i + 1] = (t) & 0xff;
+                       }
+                       if (dib9000_read_word(state, 790) != 0)
+                               dprintk("TunerITF: read more data than expected");
+               } else {
+                       i = 1000;
+                       while (dib9000_read_word(state, 789) && i)
+                               i--;
+                       if (i == 0)
+                               dprintk("TunerITF: write busy");
+
+                       len = msg[index_msg].len;
+                       if (len > 16)
+                               len = 16;
+
+                       for (i = 0; i < len; i += 2)
+                               dib9000_write_word(state, 785, (msg[index_msg].buf[i] << 8) | msg[index_msg].buf[i + 1]);
+                       dib9000_write_word(state, 784, (u16) msg[index_msg].addr);
+                       dib9000_write_word(state, 787, (len / 2) - 1);
+                       dib9000_write_word(state, 786, 0);      /* start write */
+
+                       i = 1000;
+                       while (dib9000_read_word(state, 791) > 0 && i)
+                               i--;
+                       if (i == 0)
+                               dprintk("TunerITF: write failed");
+               }
+       }
+       return num;
+}
+
+int dib9000_fw_set_component_bus_speed(struct dvb_frontend *fe, u16 speed)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+
+       state->component_bus_speed = speed;
+       return 0;
+}
+EXPORT_SYMBOL(dib9000_fw_set_component_bus_speed);
+
+static int dib9000_fw_component_bus_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
+{
+       struct dib9000_state *state = i2c_get_adapdata(i2c_adap);
+       u8 type = 0;    /* I2C */
+       u8 port = DIBX000_I2C_INTERFACE_GPIO_3_4;
+       u16 scl = state->component_bus_speed; /* SCL frequency */
+       //u16 scl = 208; /* SCL frequency */
+       struct dib9000_fe_memory_map *m = &state->platform.risc.fe_mm[FE_MM_RW_COMPONENT_ACCESS_BUFFER];
+       u8 p[13] = { 0 };
+
+       p[0] = type;
+       p[1] = port;
+       p[2] = msg[0].addr << 1;
+
+       p[3] = (u8) scl & 0xff; /* scl */
+       p[4] = (u8) (scl >> 8);
+
+//     p[5] = 0; /* attr */
+//     p[6] = 0;
+
+//     p[7] = (u8) (msg[0].addr << 1 );
+//     p[8] = (u8) (msg[0].addr >> 7 );
+       p[7] = 0;
+       p[8] = 0;
+
+       p[9] = (u8) (msg[0].len);
+       p[10] = (u8) (msg[0].len >> 8);
+       if ((num > 1) && (msg[1].flags & I2C_M_RD)) {
+               p[11] = (u8) (msg[1].len);
+               p[12] = (u8) (msg[1].len >> 8);
+       } else {
+               p[11] = 0;
+               p[12] = 0;
+       }
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+
+       dib9000_risc_mem_write(state, FE_MM_W_COMPONENT_ACCESS, p);
+
+       {                       /* write-part */
+               dib9000_risc_mem_setup_cmd(state, m->addr, msg[0].len, 0);
+               dib9000_risc_mem_write_chunks(state, msg[0].buf, msg[0].len);
+       }
+
+       /* do the transaction */
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_COMPONENT_ACCESS) < 0) {
+               DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+               return 0;
+       }
+
+       /* read back any possible result */
+       if ((num > 1) && (msg[1].flags & I2C_M_RD))
+               dib9000_risc_mem_read(state, FE_MM_RW_COMPONENT_ACCESS_BUFFER, msg[1].buf, msg[1].len);
+
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+
+       return num;
+}
+
+static u32 dib9000_i2c_func(struct i2c_adapter *adapter)
+{
+       return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dib9000_tuner_algo = {
+       .master_xfer = dib9000_tuner_xfer,
+       .functionality = dib9000_i2c_func,
+};
+
+static struct i2c_algorithm dib9000_component_bus_algo = {
+       .master_xfer = dib9000_fw_component_bus_xfer,
+       .functionality = dib9000_i2c_func,
+};
+
+struct i2c_adapter *dib9000_get_tuner_interface(struct dvb_frontend *fe)
+{
+       struct dib9000_state *st = fe->demodulator_priv;
+       return &st->tuner_adap;
+}
+
+EXPORT_SYMBOL(dib9000_get_tuner_interface);
+
+struct i2c_adapter *dib9000_get_component_bus_interface(struct dvb_frontend *fe)
+{
+       struct dib9000_state *st = fe->demodulator_priv;
+       return &st->component_bus;
+}
+
+EXPORT_SYMBOL(dib9000_get_component_bus_interface);
+
+struct i2c_adapter *dib9000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating)
+{
+       struct dib9000_state *st = fe->demodulator_priv;
+       return dibx000_get_i2c_adapter(&st->i2c_master, intf, gating);
+}
+
+EXPORT_SYMBOL(dib9000_get_i2c_master);
+
+int dib9000_set_i2c_adapter(struct dvb_frontend *fe, struct i2c_adapter *i2c)
+{
+       struct dib9000_state *st = fe->demodulator_priv;
+
+       st->i2c.i2c_adap = i2c;
+       return 0;
+}
+
+EXPORT_SYMBOL(dib9000_set_i2c_adapter);
+
+static int dib9000_cfg_gpio(struct dib9000_state *st, u8 num, u8 dir, u8 val)
+{
+       st->gpio_dir = dib9000_read_word(st, 773);
+       st->gpio_dir &= ~(1 << num);    /* reset the direction bit */
+       st->gpio_dir |= (dir & 0x1) << num;     /* set the new direction */
+       dib9000_write_word(st, 773, st->gpio_dir);
+
+       st->gpio_val = dib9000_read_word(st, 774);
+       st->gpio_val &= ~(1 << num);    /* reset the direction bit */
+       st->gpio_val |= (val & 0x01) << num;    /* set the new value */
+       dib9000_write_word(st, 774, st->gpio_val);
+
+       dprintk("gpio dir: %04x: gpio val: %04x", st->gpio_dir, st->gpio_val);
+
+       return 0;
+}
+
+int dib9000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       return dib9000_cfg_gpio(state, num, dir, val);
+}
+
+EXPORT_SYMBOL(dib9000_set_gpio);
+int dib9000_fw_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 val = dib9000_read_word(state, 294 + 1) & 0xffef;
+       val |= (onoff & 0x1) << 4;
+
+       dprintk("PID filter enabled %d", onoff);
+       return dib9000_write_word(state, 294 + 1, val);
+}
+
+EXPORT_SYMBOL(dib9000_fw_pid_filter_ctrl);
+int dib9000_fw_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff);
+       return dib9000_write_word(state, 300 + 1 + id, onoff ? (1 << 13) | pid : 0);
+}
+
+EXPORT_SYMBOL(dib9000_fw_pid_filter);
+
+int dib9000_firmware_post_pll_init(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       return dib9000_fw_init(state);
+}
+
+EXPORT_SYMBOL(dib9000_firmware_post_pll_init);
+
+static void dib9000_release(struct dvb_frontend *demod)
+{
+       struct dib9000_state *st = demod->demodulator_priv;
+       u8 index_frontend;
+
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (st->fe[index_frontend] != NULL); index_frontend++)
+               dvb_frontend_detach(st->fe[index_frontend]);
+
+       DibFreeLock(&state->platform.risc.mbx_if_lock);
+       DibFreeLock(&state->platform.risc.mbx_lock);
+       DibFreeLock(&state->platform.risc.mem_lock);
+       DibFreeLock(&state->platform.risc.mem_mbx_lock);
+       dibx000_exit_i2c_master(&st->i2c_master);
+
+       i2c_del_adapter(&st->tuner_adap);
+       i2c_del_adapter(&st->component_bus);
+       kfree(st->fe[0]);
+       kfree(st);
+}
+
+static int dib9000_wakeup(struct dvb_frontend *fe)
+{
+       return 0;
+}
+
+static int dib9000_sleep(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       int ret;
+
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               ret = state->fe[index_frontend]->ops.sleep(state->fe[index_frontend]);
+               if (ret < 0)
+                       return ret;
+       }
+       return dib9000_mbx_send(state, OUT_MSG_FE_SLEEP, NULL, 0);
+}
+
+static int dib9000_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune)
+{
+       tune->min_delay_ms = 1000;
+       return 0;
+}
+
+static int dib9000_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend, sub_index_frontend;
+       fe_status_t stat;
+       int ret;
+
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->ops.read_status(state->fe[index_frontend], &stat);
+               if (stat & FE_HAS_SYNC) {
+                       dprintk("TPS lock on the slave%i", index_frontend);
+
+                       /* synchronize the cache with the other frontends */
+                       state->fe[index_frontend]->ops.get_frontend(state->fe[index_frontend], fep);
+                       for (sub_index_frontend=0; (sub_index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[sub_index_frontend] != NULL); sub_index_frontend++) {
+                               if (sub_index_frontend != index_frontend) {
+                                       state->fe[sub_index_frontend]->dtv_property_cache.modulation = state->fe[index_frontend]->dtv_property_cache.modulation;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.inversion = state->fe[index_frontend]->dtv_property_cache.inversion;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.transmission_mode = state->fe[index_frontend]->dtv_property_cache.transmission_mode;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.guard_interval = state->fe[index_frontend]->dtv_property_cache.guard_interval;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.hierarchy = state->fe[index_frontend]->dtv_property_cache.hierarchy;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.code_rate_HP = state->fe[index_frontend]->dtv_property_cache.code_rate_HP;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.code_rate_LP = state->fe[index_frontend]->dtv_property_cache.code_rate_LP;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.rolloff = state->fe[index_frontend]->dtv_property_cache.rolloff;
+                               }
+                       }
+                       return 0;
+               }
+       }
+
+       /* get the channel from master chip */
+       ret = dib9000_fw_get_channel(fe, fep);
+       if (ret != 0)
+               return ret;
+
+       /* synchronize the cache with the other frontends */
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->dtv_property_cache.inversion = fe->dtv_property_cache.inversion;
+               state->fe[index_frontend]->dtv_property_cache.transmission_mode = fe->dtv_property_cache.transmission_mode;
+               state->fe[index_frontend]->dtv_property_cache.guard_interval = fe->dtv_property_cache.guard_interval;
+               state->fe[index_frontend]->dtv_property_cache.modulation = fe->dtv_property_cache.modulation;
+               state->fe[index_frontend]->dtv_property_cache.hierarchy = fe->dtv_property_cache.hierarchy;
+               state->fe[index_frontend]->dtv_property_cache.code_rate_HP = fe->dtv_property_cache.code_rate_HP;
+               state->fe[index_frontend]->dtv_property_cache.code_rate_LP = fe->dtv_property_cache.code_rate_LP;
+               state->fe[index_frontend]->dtv_property_cache.rolloff = fe->dtv_property_cache.rolloff;
+       }
+
+       return 0;
+}
+
+static int dib9000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       state->tune_state = tune_state;
+       if (tune_state == CT_DEMOD_START)
+               state->status = FE_STATUS_TUNE_PENDING;
+
+       return 0;
+}
+
+static u32 dib9000_get_status(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       return state->status;
+}
+
+static int dib9000_set_channel_status(struct dvb_frontend *fe, struct dvb_frontend_parametersContext *channel_status)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+
+       memcpy(&state->channel_status, channel_status, sizeof(struct dvb_frontend_parametersContext));
+       return 0;
+}
+
+static int dib9000_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       int sleep_time, sleep_time_slave;
+       u32 frontend_status;
+       u8 nbr_pending, exit_condition, index_frontend, index_frontend_success;
+       struct dvb_frontend_parametersContext channel_status;
+
+       /* check that the correct parameters are set */
+       if (state->fe[0]->dtv_property_cache.frequency == 0) {
+               dprintk("dib9000: must specify frequency ");
+               return 0;
+       }
+
+       if (state->fe[0]->dtv_property_cache.bandwidth_hz == 0) {
+               dprintk("dib9000: must specify bandwidth ");
+               return 0;
+       }
+       fe->dtv_property_cache.delivery_system = SYS_DVBT;
+
+       /* set the master status */
+       if (fep->u.ofdm.transmission_mode == TRANSMISSION_MODE_AUTO ||
+               fep->u.ofdm.guard_interval == GUARD_INTERVAL_AUTO || fep->u.ofdm.constellation == QAM_AUTO || fep->u.ofdm.code_rate_HP == FEC_AUTO) {
+               /* no channel specified, autosearch the channel */
+               state->channel_status.status = CHANNEL_STATUS_PARAMETERS_UNKNOWN;
+       } else
+               state->channel_status.status = CHANNEL_STATUS_PARAMETERS_SET;
+
+       /* set mode and status for the different frontends */
+       for (index_frontend=0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               dib9000_fw_set_diversity_in(state->fe[index_frontend], 1);
+
+               /* synchronization of the cache */
+               memcpy(&state->fe[index_frontend]->dtv_property_cache, &fe->dtv_property_cache, sizeof(struct dtv_frontend_properties));
+
+               state->fe[index_frontend]->dtv_property_cache.delivery_system = SYS_DVBT;
+               dib9000_fw_set_output_mode(state->fe[index_frontend], OUTMODE_HIGH_Z);
+
+               dib9000_set_channel_status(state->fe[index_frontend], &state->channel_status);
+               dib9000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
+       }
+
+       /* actual tune */
+       exit_condition = 0; /* 0: tune pending; 1: tune failed; 2:tune success */
+       index_frontend_success = 0;
+       do {
+               sleep_time = dib9000_fw_tune(state->fe[0], NULL);
+               for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       sleep_time_slave = dib9000_fw_tune(state->fe[index_frontend], NULL);
+                       if (sleep_time == FE_CALLBACK_TIME_NEVER)
+                               sleep_time = sleep_time_slave;
+                       else if ((sleep_time_slave != FE_CALLBACK_TIME_NEVER) && (sleep_time_slave > sleep_time))
+                               sleep_time = sleep_time_slave;
+               }
+               if (sleep_time != FE_CALLBACK_TIME_NEVER)
+                       msleep(sleep_time / 10);
+               else
+                       break;
+
+               nbr_pending = 0;
+               exit_condition = 0;
+               index_frontend_success = 0;
+               for (index_frontend=0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       frontend_status = -dib9000_get_status(state->fe[index_frontend]);
+                       if (frontend_status > -FE_STATUS_TUNE_PENDING) {
+                               exit_condition = 2; /* tune success */
+                               index_frontend_success = index_frontend;
+                               break;
+                       }
+                       if (frontend_status == -FE_STATUS_TUNE_PENDING)
+                               nbr_pending++; /* some frontends are still tuning */
+               }
+               if ((exit_condition != 2) && (nbr_pending == 0))
+                       exit_condition = 1; /* if all tune are done and no success, exit: tune failed */
+
+       } while (exit_condition == 0);
+
+       /* check the tune result */
+       if (exit_condition == 1) { /* tune failed */
+               dprintk("tune failed");
+               return 0;
+       }
+
+       dprintk("tune success on frontend%i", index_frontend_success);
+
+       /* synchronize all the channel cache */
+       dib9000_get_frontend(state->fe[0], fep);
+
+       /* retune the other frontends with the found channel */
+       channel_status.status = CHANNEL_STATUS_PARAMETERS_SET;
+       for (index_frontend=0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               /* only retune the frontends which was not tuned success */
+               if (index_frontend != index_frontend_success) {
+                       dib9000_set_channel_status(state->fe[index_frontend], &channel_status);
+                       dib9000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
+               }
+       }
+       do {
+               sleep_time = FE_CALLBACK_TIME_NEVER;
+               for (index_frontend=0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       if (index_frontend != index_frontend_success) {
+                               sleep_time_slave = dib9000_fw_tune(state->fe[index_frontend], NULL);
+                               if (sleep_time == FE_CALLBACK_TIME_NEVER)
+                                       sleep_time = sleep_time_slave;
+                               else if ((sleep_time_slave != FE_CALLBACK_TIME_NEVER) && (sleep_time_slave > sleep_time))
+                                       sleep_time = sleep_time_slave;
+                       }
+               }
+               if (sleep_time != FE_CALLBACK_TIME_NEVER)
+                       msleep(sleep_time / 10);
+               else
+                       break;
+
+               nbr_pending = 0;
+               for (index_frontend=0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       if (index_frontend != index_frontend_success) {
+                               frontend_status = -dib9000_get_status(state->fe[index_frontend]);
+                               if ((index_frontend != index_frontend_success) && (frontend_status == -FE_STATUS_TUNE_PENDING))
+                                       nbr_pending++; /* some frontends are still tuning */
+                       }
+               }
+       } while (nbr_pending != 0);
+
+       /* set the output mode */
+       dib9000_fw_set_output_mode(state->fe[0], state->chip.d9.cfg.output_mode);
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               dib9000_fw_set_output_mode(state->fe[index_frontend], OUTMODE_DIVERSITY);
+
+       /* turn off the diversity for the last frontend */
+       dib9000_fw_set_diversity_in(state->fe[index_frontend-1], 0);
+
+       return 0;
+}
+
+static u16 dib9000_read_lock(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+
+       return dib9000_read_word(state, 535);
+}
+
+static int dib9000_read_status(struct dvb_frontend *fe, fe_status_t * stat)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       u16 lock = 0, lock_slave = 0;
+
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               lock_slave |= dib9000_read_lock(state->fe[index_frontend]);
+
+       lock = dib9000_read_word(state, 535);
+
+       *stat = 0;
+
+       if ((lock & 0x8000) || (lock_slave & 0x8000))
+               *stat |= FE_HAS_SIGNAL;
+       if ((lock & 0x3000) || (lock_slave & 0x3000))
+               *stat |= FE_HAS_CARRIER;
+       if ((lock & 0x0100) || (lock_slave & 0x0100))
+               *stat |= FE_HAS_VITERBI;
+       if (((lock & 0x0038) == 0x38) || ((lock_slave & 0x0038) == 0x38))
+               *stat |= FE_HAS_SYNC;
+       if ((lock & 0x0008) || (lock_slave & 0x0008))
+               *stat |= FE_HAS_LOCK;
+
+       return 0;
+}
+
+static int dib9000_read_ber(struct dvb_frontend *fe, u32 * ber)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 c[16];
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0)
+               return -EIO;
+       dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, sizeof(c));
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+
+       *ber = c[10] << 16 | c[11];
+       return 0;
+}
+
+static int dib9000_read_signal_strength(struct dvb_frontend *fe, u16 * strength)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       u16 c[16];
+       u16 val;
+
+       *strength = 0;
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->ops.read_signal_strength(state->fe[index_frontend], &val);
+               if (val > 65535 - *strength)
+                       *strength = 65535;
+               else
+                       *strength += val;
+       }
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0)
+               return -EIO;
+       dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, sizeof(c));
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+
+       val = 65535 - c[4];
+       if (val > 65535 - *strength)
+               *strength = 65535;
+       else
+               *strength += val;
+       return 0;
+}
+
+static u32 dib9000_get_snr(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 c[16];
+       u32 n, s, exp;
+       u16 val;
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0)
+               return -EIO;
+       dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, sizeof(c));
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+
+       val = c[7];
+       n = (val >> 4) & 0xff;
+       exp = ((val & 0xf) << 2);
+       val = c[8];
+       exp += ((val >> 14) & 0x3);
+       if ((exp & 0x20) != 0)
+               exp -= 0x40;
+       n <<= exp + 16;
+
+       s = (val >> 6) & 0xFF;
+       exp = (val & 0x3F);
+       if ((exp & 0x20) != 0)
+               exp -= 0x40;
+       s <<= exp + 16;
+
+       if (n > 0) {
+               u32 t = (s / n) << 16;
+               return t + ((s << 16) - n * t) / n;
+       }
+       return 0xffffffff;
+}
+
+static int dib9000_read_snr(struct dvb_frontend *fe, u16 * snr)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       u32 snr_master;
+
+       snr_master = dib9000_get_snr(fe);
+       for (index_frontend=1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               snr_master += dib9000_get_snr(state->fe[index_frontend]);
+
+       if ((snr_master >> 16) != 0) {
+               snr_master = 10 * intlog10(snr_master >> 16);
+               *snr = snr_master / ((1 << 24) / 10);
+       } else
+               *snr = 0;
+
+       return 0;
+}
+
+static int dib9000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u16 c[16];
+
+       DibAcquireLock(&state->platform.risc.mem_mbx_lock);
+       if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0)
+               return -EIO;
+       dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, sizeof(c));
+       DibReleaseLock(&state->platform.risc.mem_mbx_lock);
+
+       *unc = c[12];
+       return 0;
+}
+
+int dib9000_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, u8 first_addr)
+{
+       int k = 0;
+       u8 new_addr = 0;
+       struct i2c_device client = {.i2c_adap = i2c };
+
+       client.i2c_addr = default_addr + 16;
+       dib9000_i2c_write16(&client, 1796, 0x0);        // select DVB-T output
+
+       for (k = no_of_demods - 1; k >= 0; k--) {
+               /* designated i2c address */
+               new_addr = first_addr + (k << 1);
+               client.i2c_addr = default_addr;
+
+               dib9000_i2c_write16(&client, 1817, 3);
+               dib9000_i2c_write16(&client, 1796, 0);
+               dib9000_i2c_write16(&client, 1227, 1);
+               dib9000_i2c_write16(&client, 1227, 0);
+
+               client.i2c_addr = new_addr;
+               dib9000_i2c_write16(&client, 1817, 3);
+               dib9000_i2c_write16(&client, 1796, 0);
+               dib9000_i2c_write16(&client, 1227, 1);
+               dib9000_i2c_write16(&client, 1227, 0);
+
+               if (dib9000_identify(&client) == 0) {
+                       client.i2c_addr = default_addr;
+                       if (dib9000_identify(&client) == 0) {
+                               dprintk("DiB9000 #%d: not identified", k);
+                               return -EIO;
+                       }
+               }
+
+               dib9000_i2c_write16(&client, 1795, (1 << 10) | (4 << 6));
+               dib9000_i2c_write16(&client, 1794, (new_addr << 2) | 2);
+
+               dprintk("IC %d initialized (to i2c_address 0x%x)", k, new_addr);
+       }
+
+       for (k = 0; k < no_of_demods; k++) {
+               new_addr = first_addr | (k << 1);
+               client.i2c_addr = new_addr;
+
+               dib9000_i2c_write16(&client, 1794, (new_addr << 2));
+               dib9000_i2c_write16(&client, 1795, 0);
+       }
+
+       return 0;
+}
+
+EXPORT_SYMBOL(dib9000_i2c_enumeration);
+
+int dib9000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend = 1;
+
+       while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+               index_frontend++;
+       if (index_frontend < MAX_NUMBER_OF_FRONTENDS) {
+               dprintk("set slave fe %p to index %i", fe_slave, index_frontend);
+               state->fe[index_frontend] = fe_slave;
+               return 0;
+       }
+
+       dprintk("too many slave frontend");
+       return -ENOMEM;
+}
+EXPORT_SYMBOL(dib9000_set_slave_frontend);
+
+int dib9000_remove_slave_frontend(struct dvb_frontend *fe)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+       u8 index_frontend = 1;
+
+       while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+               index_frontend++;
+       if (index_frontend != 1) {
+               dprintk("remove slave fe %p (index %i)", state->fe[index_frontend-1], index_frontend-1);
+               state->fe[index_frontend] = NULL;
+               return 0;
+       }
+
+       dprintk("no frontend to be removed");
+       return -ENODEV;
+}
+EXPORT_SYMBOL(dib9000_remove_slave_frontend);
+
+struct dvb_frontend * dib9000_get_slave_frontend(struct dvb_frontend *fe, int slave_index)
+{
+       struct dib9000_state *state = fe->demodulator_priv;
+
+       if (slave_index >= MAX_NUMBER_OF_FRONTENDS)
+               return NULL;
+       return state->fe[slave_index];
+}
+EXPORT_SYMBOL(dib9000_get_slave_frontend);
+
+static struct dvb_frontend_ops dib9000_ops;
+struct dvb_frontend *dib9000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, const struct dib9000_config *cfg)
+{
+       struct dvb_frontend *fe;
+       struct dib9000_state *st;
+       st = kzalloc(sizeof(struct dib9000_state), GFP_KERNEL);
+       if (st == NULL)
+               return NULL;
+       fe = kzalloc(sizeof(struct dvb_frontend), GFP_KERNEL);
+       if (fe == NULL)
+               return NULL;
+
+       memcpy(&st->chip.d9.cfg, cfg, sizeof(struct dib9000_config));
+       st->i2c.i2c_adap = i2c_adap;
+       st->i2c.i2c_addr = i2c_addr;
+
+       st->gpio_dir = DIB9000_GPIO_DEFAULT_DIRECTIONS;
+       st->gpio_val = DIB9000_GPIO_DEFAULT_VALUES;
+       st->gpio_pwm_pos = DIB9000_GPIO_DEFAULT_PWM_POS;
+
+       DibInitLock(&st->platform.risc.mbx_if_lock);
+       DibInitLock(&st->platform.risc.mbx_lock);
+       DibInitLock(&st->platform.risc.mem_lock);
+       DibInitLock(&st->platform.risc.mem_mbx_lock);
+
+       st->fe[0] = fe;
+       fe->demodulator_priv = st;
+       memcpy(&st->fe[0]->ops, &dib9000_ops, sizeof(struct dvb_frontend_ops));
+
+       /* Ensure the output mode remains at the previous default if it's
+        * not specifically set by the caller.
+        */
+       if ((st->chip.d9.cfg.output_mode != OUTMODE_MPEG2_SERIAL) && (st->chip.d9.cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
+               st->chip.d9.cfg.output_mode = OUTMODE_MPEG2_FIFO;
+
+       if (dib9000_identify(&st->i2c) == 0)
+               goto error;
+
+       dibx000_init_i2c_master(&st->i2c_master, DIB7000MC, st->i2c.i2c_adap, st->i2c.i2c_addr);
+
+       st->tuner_adap.dev.parent = i2c_adap->dev.parent;
+       strncpy(st->tuner_adap.name, "DIB9000_FW TUNER ACCESS", sizeof(st->tuner_adap.name));
+       st->tuner_adap.algo = &dib9000_tuner_algo;
+       st->tuner_adap.algo_data = NULL;
+       i2c_set_adapdata(&st->tuner_adap, st);
+       if (i2c_add_adapter(&st->tuner_adap) < 0)
+               goto error;
+
+       st->component_bus.dev.parent = i2c_adap->dev.parent;
+       strncpy(st->component_bus.name, "DIB9000_FW COMPONENT BUS ACCESS", sizeof(st->component_bus.name));
+       st->component_bus.algo = &dib9000_component_bus_algo;
+       st->component_bus.algo_data = NULL;
+       st->component_bus_speed = 340;
+       i2c_set_adapdata(&st->component_bus, st);
+       if (i2c_add_adapter(&st->component_bus) < 0)
+               goto component_bus_add_error;
+
+       dib9000_fw_reset(fe);
+
+       return fe;
+
+ component_bus_add_error:
+       i2c_del_adapter(&st->tuner_adap);
+ error:
+       kfree(st);
+       return NULL;
+}
+
+EXPORT_SYMBOL(dib9000_attach);
+
+static struct dvb_frontend_ops dib9000_ops = {
+       .info = {
+                .name = "DiBcom 9000",
+                .type = FE_OFDM,
+                .frequency_min = 44250000,
+                .frequency_max = 867250000,
+                .frequency_stepsize = 62500,
+                .caps = FE_CAN_INVERSION_AUTO |
+                FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+                FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+                FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+                FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | FE_CAN_HIERARCHY_AUTO,
+                },
+
+       .release = dib9000_release,
+
+       .init = dib9000_wakeup,
+       .sleep = dib9000_sleep,
+
+       .set_frontend = dib9000_set_frontend,
+       .get_tune_settings = dib9000_fe_get_tune_settings,
+       .get_frontend = dib9000_get_frontend,
+
+       .read_status = dib9000_read_status,
+       .read_ber = dib9000_read_ber,
+       .read_signal_strength = dib9000_read_signal_strength,
+       .read_snr = dib9000_read_snr,
+       .read_ucblocks = dib9000_read_unc_blocks,
+};
+
+MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_AUTHOR("Olivier Grenie <ogrenie@dibcom.fr>");
+MODULE_DESCRIPTION("Driver for the DiBcom 9000 COFDM demodulator");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/frontends/dib9000.h b/drivers/media/dvb/frontends/dib9000.h
new file mode 100644 (file)
index 0000000..995e4bc
--- /dev/null
@@ -0,0 +1,130 @@
+#ifndef DIB9000_H
+#define DIB9000_H
+
+#include "dibx000_common.h"
+
+struct dib9000_config {
+       u8 dvbt_mode;
+       u8 output_mpeg2_in_188_bytes;
+       u8 hostbus_diversity;
+       struct dibx000_bandwidth_config *bw;
+
+       u16 if_drives;
+
+       u32 timing_frequency;
+       u32 xtal_clock_khz;
+       u32 vcxo_timer;
+       u32 demod_clock_khz;
+
+       const u8 *microcode_B_fe_buffer;
+       u32 microcode_B_fe_size;
+
+       struct dibGPIOFunction gpio_function[2];
+       struct dibSubbandSelection subband;
+
+       u8 output_mode;
+};
+
+#define DEFAULT_DIB9000_I2C_ADDRESS 18
+
+#if defined(CONFIG_DVB_DIB9000) || (defined(CONFIG_DVB_DIB9000_MODULE) && defined(MODULE))
+extern struct dvb_frontend *dib9000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, const struct dib9000_config *cfg);
+extern int dib9000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods, u8 default_addr, u8 first_addr);
+extern struct i2c_adapter *dib9000_get_tuner_interface(struct dvb_frontend *fe);
+extern struct i2c_adapter *dib9000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating);
+extern int dib9000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val);
+extern int dib9000_fw_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff);
+extern int dib9000_fw_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
+extern int dib9000_firmware_post_pll_init(struct dvb_frontend *fe);
+extern int dib9000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave);
+extern int dib9000_remove_slave_frontend(struct dvb_frontend *fe);
+extern struct dvb_frontend * dib9000_get_slave_frontend(struct dvb_frontend *fe, int slave_index);
+extern struct i2c_adapter *dib9000_get_component_bus_interface(struct dvb_frontend *fe);
+extern int dib9000_set_i2c_adapter(struct dvb_frontend *fe, struct i2c_adapter *i2c);
+extern int dib9000_fw_set_component_bus_speed(struct dvb_frontend *fe, u16 speed);
+#else
+static inline struct dvb_frontend *dib9000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib9000_config *cfg)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return NULL;
+}
+
+static inline struct i2c_adapter *dib9000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return NULL;
+}
+
+static inline int dib9000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods, u8 default_addr, u8 first_addr)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline struct i2c_adapter *dib9000_get_tuner_interface(struct dvb_frontend *fe)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return NULL;
+}
+
+static inline int dib9000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline int dib9000_fw_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline int dib9000_fw_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline int dib9000_firmware_post_pll_init(struct dvb_frontend *fe)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline int dib9000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+int dib9000_remove_slave_frontend(struct dvb_frontend *fe)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline struct dvb_frontend * dib9000_get_slave_frontend(struct dvb_frontend *fe, int slave_index) {
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return NULL;
+}
+
+static inline struct i2c_adapter *dib9000_get_component_bus_interface(struct dvb_frontend *fe)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return NULL;
+}
+
+static inline int dib9000_set_i2c_adapter(struct dvb_frontend *fe, struct i2c_adapter *i2c)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+
+static inline int dib9000_fw_set_component_bus_speed(struct dvb_frontend *fe, u16 speed)
+{
+       printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+       return -ENODEV;
+}
+#endif
+
+#endif
index b7ad066b7e52c58f3b34515dc2dd5bc887c4db73..c4fd62f8df510efb26a082c2755735d54a67456c 100644 (file)
@@ -219,6 +219,51 @@ struct dvb_frontend_parametersContext {
 
 #define FE_CALLBACK_TIME_NEVER 0xffffffff
 
-#define ABS(x) ((x < 0) ? (-x) : (x))
+#define ABS(x) ((x<0)?(-x):(x))
+
+#define DATA_BUS_ACCESS_MODE_8BIT                 0x01
+#define DATA_BUS_ACCESS_MODE_16BIT                0x02
+#define DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT 0x10
+
+struct dibGPIOFunction {
+#define BOARD_GPIO_COMPONENT_BUS_ADAPTER 1
+#define BOARD_GPIO_COMPONENT_DEMOD       2
+       u8 component;
+
+#define BOARD_GPIO_FUNCTION_BOARD_ON      1
+#define BOARD_GPIO_FUNCTION_BOARD_OFF     2
+#define BOARD_GPIO_FUNCTION_COMPONENT_ON  3
+#define BOARD_GPIO_FUNCTION_COMPONENT_OFF 4
+#define BOARD_GPIO_FUNCTION_SUBBAND_PWM   5
+#define BOARD_GPIO_FUNCTION_SUBBAND_GPIO   6
+       u8 function;
+
+/* mask, direction and value are used specify which GPIO to change GPIO0
+ * is LSB and possible GPIO31 is MSB.  The same bit-position as in the
+ * mask is used for the direction and the value. Direction == 1 is OUT,
+ * 0 == IN. For direction "OUT" value is either 1 or 0, for direction IN
+ * value has no meaning.
+ *
+ * In case of BOARD_GPIO_FUNCTION_PWM mask is giving the GPIO to be
+ * used to do the PWM. Direction gives the PWModulator to be used.
+ * Value gives the PWM value in device-dependent scale.
+ */
+       u32 mask;
+       u32 direction;
+       u32 value;
+};
+
+#define MAX_NB_SUBBANDS   8
+struct dibSubbandSelection {
+       u8  size; /* Actual number of subbands. */
+       struct {
+               u16 f_mhz;
+               struct dibGPIOFunction gpio;
+       } subband[MAX_NB_SUBBANDS];
+};
+
+#define DEMOD_TIMF_SET    0x00
+#define DEMOD_TIMF_GET    0x01
+#define DEMOD_TIMF_UPDATE 0x02
 
 #endif