diff options
Diffstat (limited to 'drivers/media/dvb-frontends/dib9000.c')
| -rw-r--r-- | drivers/media/dvb-frontends/dib9000.c | 2584 |
1 files changed, 2584 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c new file mode 100644 index 000000000..6f81890b3 --- /dev/null +++ b/drivers/media/dvb-frontends/dib9000.c @@ -0,0 +1,2584 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Linux-DVB Driver for DiBcom's DiB9000 and demodulator-family. + * + * Copyright (C) 2005-10 DiBcom (http://www.dibcom.fr/) + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/i2c.h> +#include <linux/mutex.h> + +#include <media/dvb_math.h> +#include <media/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(fmt, arg...) do { \ + if (debug) \ + printk(KERN_DEBUG pr_fmt("%s: " fmt), \ + __func__, ##arg); \ +} while (0) + +#define MAX_NUMBER_OF_FRONTENDS 6 + +struct i2c_device { + struct i2c_adapter *i2c_adap; + u8 i2c_addr; + u8 *i2c_read_buffer; + u8 *i2c_write_buffer; +}; + +struct dib9000_pid_ctrl { +#define DIB9000_PID_FILTER_CTRL 0 +#define DIB9000_PID_FILTER 1 + u8 cmd; + u8 id; + u16 pid; + u8 onoff; +}; + +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; + + struct mutex mbx_if_lock; /* to protect read/write operations */ + struct mutex mbx_lock; /* to protect the whole mailbox handling */ + + struct mutex mem_lock; /* to protect the memory accesses */ + struct mutex 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; + + /* for the I2C transfer */ + struct i2c_msg msg[2]; + u8 i2c_write_buffer[255]; + u8 i2c_read_buffer[255]; + struct mutex demod_lock; + u8 get_frontend_internal; + struct dib9000_pid_ctrl pid_ctrl[10]; + s8 pid_ctrl_index; /* -1: empty list; -2: do not use the list */ +}; + +static const 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 int dib9000_read16_attr(struct dib9000_state *state, u16 reg, u8 *b, u32 len, u16 attribute) +{ + u32 chunk_size = 126; + u32 l; + int ret; + + if (state->platform.risc.fw_is_running && (reg < 1024)) + return dib9000_risc_apb_access_read(state, reg, attribute, NULL, 0, b, len); + + memset(state->msg, 0, 2 * sizeof(struct i2c_msg)); + state->msg[0].addr = state->i2c.i2c_addr >> 1; + state->msg[0].flags = 0; + state->msg[0].buf = state->i2c_write_buffer; + state->msg[0].len = 2; + state->msg[1].addr = state->i2c.i2c_addr >> 1; + state->msg[1].flags = I2C_M_RD; + state->msg[1].buf = b; + state->msg[1].len = len; + + state->i2c_write_buffer[0] = reg >> 8; + state->i2c_write_buffer[1] = reg & 0xff; + + if (attribute & DATA_BUS_ACCESS_MODE_8BIT) + state->i2c_write_buffer[0] |= (1 << 5); + if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT) + state->i2c_write_buffer[0] |= (1 << 4); + + do { + l = min(len, chunk_size); + state->msg[1].len = l; + state->msg[1].buf = b; + ret = i2c_transfer(state->i2c.i2c_adap, state->msg, 2) != 2 ? -EREMOTEIO : 0; + if (ret != 0) { + dprintk("i2c read error on %d\n", 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) +{ + struct i2c_msg msg[2] = { + {.addr = i2c->i2c_addr >> 1, .flags = 0, + .buf = i2c->i2c_write_buffer, .len = 2}, + {.addr = i2c->i2c_addr >> 1, .flags = I2C_M_RD, + .buf = i2c->i2c_read_buffer, .len = 2}, + }; + + i2c->i2c_write_buffer[0] = reg >> 8; + i2c->i2c_write_buffer[1] = reg & 0xff; + + if (i2c_transfer(i2c->i2c_adap, msg, 2) != 2) { + dprintk("read register %x error\n", reg); + return 0; + } + + return (i2c->i2c_read_buffer[0] << 8) | i2c->i2c_read_buffer[1]; +} + +static inline u16 dib9000_read_word(struct dib9000_state *state, u16 reg) +{ + if (dib9000_read16_attr(state, reg, state->i2c_read_buffer, 2, 0) != 0) + return 0; + return (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1]; +} + +static inline u16 dib9000_read_word_attr(struct dib9000_state *state, u16 reg, u16 attribute) +{ + if (dib9000_read16_attr(state, reg, state->i2c_read_buffer, 2, + attribute) != 0) + return 0; + return (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[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 int dib9000_write16_attr(struct dib9000_state *state, u16 reg, const u8 *buf, u32 len, u16 attribute) +{ + u32 chunk_size = 126; + u32 l; + int ret; + + 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; + } + + memset(&state->msg[0], 0, sizeof(struct i2c_msg)); + state->msg[0].addr = state->i2c.i2c_addr >> 1; + state->msg[0].flags = 0; + state->msg[0].buf = state->i2c_write_buffer; + state->msg[0].len = len + 2; + + state->i2c_write_buffer[0] = (reg >> 8) & 0xff; + state->i2c_write_buffer[1] = (reg) & 0xff; + + if (attribute & DATA_BUS_ACCESS_MODE_8BIT) + state->i2c_write_buffer[0] |= (1 << 5); + if (attribute & DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT) + state->i2c_write_buffer[0] |= (1 << 4); + + do { + l = min(len, chunk_size); + state->msg[0].len = l + 2; + memcpy(&state->i2c_write_buffer[2], buf, l); + + ret = i2c_transfer(state->i2c.i2c_adap, state->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) +{ + struct i2c_msg msg = { + .addr = i2c->i2c_addr >> 1, .flags = 0, + .buf = i2c->i2c_write_buffer, .len = 4 + }; + + i2c->i2c_write_buffer[0] = (reg >> 8) & 0xff; + i2c->i2c_write_buffer[1] = reg & 0xff; + i2c->i2c_write_buffer[2] = (val >> 8) & 0xff; + i2c->i2c_write_buffer[3] = val & 0xff; + + 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; */ +/* b[3] = 0; */ + b[4] = (u8) (addr >> 8); + b[5] = (u8) (addr & 0xff); + +/* b[10] = 0; */ +/* b[11] = 0; */ + b[12] = (u8) (addr >> 8); + b[13] = (u8) (addr & 0xff); + + addr += len; +/* b[6] = 0; */ +/* b[7] = 0; */ + b[8] = (u8) (addr >> 8); + 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; + + if (mutex_lock_interruptible(&state->platform.risc.mem_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + dib9000_risc_mem_setup(state, cmd | 0x80); + dib9000_risc_mem_read_chunks(state, b, len); + mutex_unlock(&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; + + if (mutex_lock_interruptible(&state->platform.risc.mem_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + dib9000_risc_mem_setup(state, cmd); + dib9000_risc_mem_write_chunks(state, b, m->size); + mutex_unlock(&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\n", len); + if (dib9000_write16_noinc(state, 1026 + offs, (u8 *) code, (u16) len) != 0) { + dprintk("error while downloading microcode for RISC %c\n", 'A' + risc_id); + return -EIO; + } + + dprintk("Microcode for RISC %c loaded\n", '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\n", 'A' + risc_id); + return -EIO; + } + dprintk("MBX: initialized\n"); + 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 *d, b[2]; + u16 tmp; + u16 size; + u32 i; + int ret = 0; + + if (!state->platform.risc.fw_is_running) + return -EINVAL; + + if (mutex_lock_interruptible(&state->platform.risc.mbx_if_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + 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\n"); + msleep(100); + } else + break; + } while (1); + + /*dprintk( "MBX: size: %d\n", size); */ + + if (tmp == 0) { + ret = -EINVAL; + goto out; + } +#ifdef DUMP_MSG + dprintk("--> %02x %d %*ph\n", id, len + 1, len, data); +#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: + mutex_unlock(&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; + + if (mutex_lock_interruptible(&state->platform.risc.mbx_if_lock) < 0) { + dprintk("could not get the lock\n"); + return 0; + } + 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("<--\n"); + for (i = 0; i < size + 1; i++) + dprintk("%04x\n", d[i]); + dprintk("\n"); +#endif + } else { + dprintk("MBX: message is too big for message cache (%d), flushing message\n", 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); + + mutex_unlock(&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("%s\n", b); + } else + dprintk("RISC%d: %d.%04d %s\n", + state->fe_id, + ts / 10000, ts % 10000, *b ? b : "<empty>"); + 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\n", *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...\n"); + 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; + + if (!state->platform.risc.fw_is_running) + return -1; + + if (mutex_lock_interruptible(&state->platform.risc.mbx_lock) < 0) { + dprintk("could not get the lock\n"); + return -1; + } + + if (dib9000_mbx_count(state, 1, attr)) /* 1=RiscB */ + ret = dib9000_mbx_fetch_to_cache(state, attr); + + dib9000_read_word_attr(state, 1229, attr); /* Clear the IRQ */ +/* if (tmp) */ +/* dprintk( "cleared IRQ: %x\n", tmp); */ + mutex_unlock(&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\n", 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)\n", 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; + + value = dib9000_i2c_read16(client, 896); + if (value != 0x01b3) { + dprintk("wrong Vendor ID (0x%x)\n", 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)\n", 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\n"); + return 0; + } + + switch (value) { + case 0x4000: + dprintk("found DiB7000MA/PA/MB/PB\n"); + break; + case 0x4001: + dprintk("found DiB7000HC\n"); + break; + case 0x4002: + dprintk("found DiB7000MC\n"); + break; + case 0x4003: + dprintk("found DiB9000A\n"); + break; + case 0x4004: + dprintk("found DiB9000H\n"); + break; + case 0x4005: + dprintk("found DiB9000M\n"); + 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); + + 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 through rd fw %d %x\n", 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--; + 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; + + if (len > 18) + return -EINVAL; + + /* dprintk( "APB access through wr fw %d %x\n", address, attribute); */ + + mb[0] = (u16)address; + for (i = 0; i + 1 < len; i += 2) + mb[1 + i / 2] = b[i] << 8 | b[i + 1]; + if (len & 1) + mb[1 + len / 2] = b[len - 1] << 8; + + dib9000_mbx_send_attr(state, OUT_MSG_BRIDGE_APB_W, mb, (3 + 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, state->i2c_read_buffer, 1); + } while (state->i2c_read_buffer[0] && 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) + 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; + } + 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); + 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]; + } + + return 0; +} + +static void dib9000_fw_set_channel_head(struct dib9000_state *state) +{ + 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 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; + + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) { + ret = -EIO; + goto error; + } + + dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_UNION, + state->i2c_read_buffer, sizeof(struct dibDVBTChannel)); + ch = (struct dibDVBTChannel *)state->i2c_read_buffer; + + + 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: + mutex_unlock(&state->platform.risc.mem_mbx_lock); + return ret; +} + +static int dib9000_fw_set_channel_union(struct dvb_frontend *fe) +{ + 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 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); + + /* 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); + 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, state->i2c_read_buffer, 1); + else + dib9000_risc_mem_read(state, FE_MM_R_CHANNEL_TUNE_STATE, state->i2c_read_buffer, 1); + i = (s8)state->i2c_read_buffer[0]; + 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\n", fe, mode); + + switch (mode) { + case OUTMODE_MPEG2_PAR_GATED_CLK: + outreg = (1 << 10); /* 0x0400 */ + break; + case OUTMODE_MPEG2_PAR_CONT_CLK: + outreg = (1 << 10) | (1 << 6); /* 0x0440 */ + break; + case OUTMODE_MPEG2_SERIAL: + outreg = (1 << 10) | (2 << 6) | (0 << 1); /* 0x0482 */ + break; + case OUTMODE_DIVERSITY: + outreg = (1 << 10) | (4 << 6); /* 0x0500 */ + break; + case OUTMODE_MPEG2_FIFO: + outreg = (1 << 10) | (5 << 6); + break; + case OUTMODE_HIGH_Z: + outreg = 0; + break; + default: + dprintk("Unhandled output_mode passed to be set for demod %p\n", &state->fe[0]); + return -EINVAL; + } + + dib9000_write_word(state, 1795, outreg); + + 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\n"); + + 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\n"); + + 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\n"); + } else { + i = 1000; + while (dib9000_read_word(state, 789) && i) + i--; + if (i == 0) + dprintk("TunerITF: write busy\n"); + + 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\n"); + } + } + 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 */ + 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[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; + } + + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + return 0; + } + + 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) { + mutex_unlock(&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); + + mutex_unlock(&state->platform.risc.mem_mbx_lock); + + return num; +} + +static u32 dib9000_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static const struct i2c_algorithm dib9000_tuner_algo = { + .master_xfer = dib9000_tuner_xfer, + .functionality = dib9000_i2c_func, +}; + +static const 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\n", 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; + int ret; + + if ((state->pid_ctrl_index != -2) && (state->pid_ctrl_index < 9)) { + /* postpone the pid filtering cmd */ + dprintk("pid filter cmd postpone\n"); + state->pid_ctrl_index++; + state->pid_ctrl[state->pid_ctrl_index].cmd = DIB9000_PID_FILTER_CTRL; + state->pid_ctrl[state->pid_ctrl_index].onoff = onoff; + return 0; + } + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + + val = dib9000_read_word(state, 294 + 1) & 0xffef; + val |= (onoff & 0x1) << 4; + + dprintk("PID filter enabled %d\n", onoff); + ret = dib9000_write_word(state, 294 + 1, val); + mutex_unlock(&state->demod_lock); + return ret; + +} +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; + int ret; + + if (state->pid_ctrl_index != -2) { + /* postpone the pid filtering cmd */ + dprintk("pid filter postpone\n"); + if (state->pid_ctrl_index < 9) { + state->pid_ctrl_index++; + state->pid_ctrl[state->pid_ctrl_index].cmd = DIB9000_PID_FILTER; + state->pid_ctrl[state->pid_ctrl_index].id = id; + state->pid_ctrl[state->pid_ctrl_index].pid = pid; + state->pid_ctrl[state->pid_ctrl_index].onoff = onoff; + } else + dprintk("can not add any more pid ctrl cmd\n"); + return 0; + } + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + dprintk("Index %x, PID %d, OnOff %d\n", id, pid, onoff); + ret = dib9000_write_word(state, 300 + 1 + id, + onoff ? (1 << 13) | pid : 0); + mutex_unlock(&state->demod_lock); + return ret; +} +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]); + + 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 = 0; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + 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) + goto error; + } + ret = dib9000_mbx_send(state, OUT_MSG_FE_SLEEP, NULL, 0); + +error: + mutex_unlock(&state->demod_lock); + return ret; +} + +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 dtv_frontend_properties *c) +{ + struct dib9000_state *state = fe->demodulator_priv; + u8 index_frontend, sub_index_frontend; + enum fe_status stat; + int ret = 0; + + if (state->get_frontend_internal == 0) { + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + } + + 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\n", index_frontend); + + /* synchronize the cache with the other frontends */ + state->fe[index_frontend]->ops.get_frontend(state->fe[index_frontend], c); + 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; + } + } + ret = 0; + goto return_value; + } + } + + /* get the channel from master chip */ + ret = dib9000_fw_get_channel(fe); + if (ret != 0) + goto return_value; + + /* 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 = c->inversion; + state->fe[index_frontend]->dtv_property_cache.transmission_mode = c->transmission_mode; + state->fe[index_frontend]->dtv_property_cache.guard_interval = c->guard_interval; + state->fe[index_frontend]->dtv_property_cache.modulation = c->modulation; + state->fe[index_frontend]->dtv_property_cache.hierarchy = c->hierarchy; + state->fe[index_frontend]->dtv_property_cache.code_rate_HP = c->code_rate_HP; + state->fe[index_frontend]->dtv_property_cache.code_rate_LP = c->code_rate_LP; + state->fe[index_frontend]->dtv_property_cache.rolloff = c->rolloff; + } + ret = 0; + +return_value: + if (state->get_frontend_internal == 0) + mutex_unlock(&state->demod_lock); + return ret; +} + +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 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\n"); + return 0; + } + + if (state->fe[0]->dtv_property_cache.bandwidth_hz == 0) { + dprintk("dib9000: must specify bandwidth\n"); + return 0; + } + + state->pid_ctrl_index = -1; /* postpone the pid filtering cmd */ + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return 0; + } + + fe->dtv_property_cache.delivery_system = SYS_DVBT; + + /* set the master status */ + if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO || + state->fe[0]->dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO || + state->fe[0]->dtv_property_cache.modulation == QAM_AUTO || + state->fe[0]->dtv_property_cache.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]); + 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]); + 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\n"); + mutex_unlock(&state->demod_lock); + /* tune failed; put all the pid filtering cmd to junk */ + state->pid_ctrl_index = -1; + return 0; + } + + dprintk("tune success on frontend%i\n", index_frontend_success); + + /* synchronize all the channel cache */ + state->get_frontend_internal = 1; + dib9000_get_frontend(state->fe[0], &state->fe[0]->dtv_property_cache); + state->get_frontend_internal = 0; + + /* 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]); + 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); + + mutex_unlock(&state->demod_lock); + if (state->pid_ctrl_index >= 0) { + u8 index_pid_filter_cmd; + u8 pid_ctrl_index = state->pid_ctrl_index; + + state->pid_ctrl_index = -2; + for (index_pid_filter_cmd = 0; + index_pid_filter_cmd <= pid_ctrl_index; + index_pid_filter_cmd++) { + if (state->pid_ctrl[index_pid_filter_cmd].cmd == DIB9000_PID_FILTER_CTRL) + dib9000_fw_pid_filter_ctrl(state->fe[0], + state->pid_ctrl[index_pid_filter_cmd].onoff); + else if (state->pid_ctrl[index_pid_filter_cmd].cmd == DIB9000_PID_FILTER) + dib9000_fw_pid_filter(state->fe[0], + state->pid_ctrl[index_pid_filter_cmd].id, + state->pid_ctrl[index_pid_filter_cmd].pid, + state->pid_ctrl[index_pid_filter_cmd].onoff); + } + } + /* do not postpone any more the pid filtering */ + state->pid_ctrl_index = -2; + + 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, enum fe_status *stat) +{ + struct dib9000_state *state = fe->demodulator_priv; + u8 index_frontend; + u16 lock = 0, lock_slave = 0; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + 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; + + mutex_unlock(&state->demod_lock); + + return 0; +} + +static int dib9000_read_ber(struct dvb_frontend *fe, u32 * ber) +{ + struct dib9000_state *state = fe->demodulator_priv; + u16 *c; + int ret = 0; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + ret = -EINTR; + goto error; + } + if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) { + mutex_unlock(&state->platform.risc.mem_mbx_lock); + ret = -EIO; + goto error; + } + dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, + state->i2c_read_buffer, 16 * 2); + mutex_unlock(&state->platform.risc.mem_mbx_lock); + + c = (u16 *)state->i2c_read_buffer; + + *ber = c[10] << 16 | c[11]; + +error: + mutex_unlock(&state->demod_lock); + return ret; +} + +static int dib9000_read_signal_strength(struct dvb_frontend *fe, u16 * strength) +{ + struct dib9000_state *state = fe->demodulator_priv; + u8 index_frontend; + u16 *c = (u16 *)state->i2c_read_buffer; + u16 val; + int ret = 0; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + *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; + } + + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + ret = -EINTR; + goto error; + } + if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) { + mutex_unlock(&state->platform.risc.mem_mbx_lock); + ret = -EIO; + goto error; + } + dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2); + mutex_unlock(&state->platform.risc.mem_mbx_lock); + + val = 65535 - c[4]; + if (val > 65535 - *strength) + *strength = 65535; + else + *strength += val; + +error: + mutex_unlock(&state->demod_lock); + return ret; +} + +static u32 dib9000_get_snr(struct dvb_frontend *fe) +{ + struct dib9000_state *state = fe->demodulator_priv; + u16 *c = (u16 *)state->i2c_read_buffer; + u32 n, s, exp; + u16 val; + + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + return 0; + } + if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) { + mutex_unlock(&state->platform.risc.mem_mbx_lock); + return 0; + } + dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2); + mutex_unlock(&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; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + 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; + + mutex_unlock(&state->demod_lock); + + return 0; +} + +static int dib9000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc) +{ + struct dib9000_state *state = fe->demodulator_priv; + u16 *c = (u16 *)state->i2c_read_buffer; + int ret = 0; + + if (mutex_lock_interruptible(&state->demod_lock) < 0) { + dprintk("could not get the lock\n"); + return -EINTR; + } + if (mutex_lock_interruptible(&state->platform.risc.mem_mbx_lock) < 0) { + dprintk("could not get the lock\n"); + ret = -EINTR; + goto error; + } + if (dib9000_fw_memmbx_sync(state, FE_SYNC_CHANNEL) < 0) { + mutex_unlock(&state->platform.risc.mem_mbx_lock); + ret = -EIO; + goto error; + } + dib9000_risc_mem_read(state, FE_MM_R_FE_MONITOR, (u8 *) c, 16 * 2); + mutex_unlock(&state->platform.risc.mem_mbx_lock); + + *unc = c[12]; + +error: + mutex_unlock(&state->demod_lock); + return ret; +} + +int dib9000_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, u8 first_addr) +{ + int k = 0, ret = 0; + u8 new_addr = 0; + struct i2c_device client = {.i2c_adap = i2c }; + + client.i2c_write_buffer = kzalloc(4, GFP_KERNEL); + if (!client.i2c_write_buffer) { + dprintk("%s: not enough memory\n", __func__); + return -ENOMEM; + } + client.i2c_read_buffer = kzalloc(4, GFP_KERNEL); + if (!client.i2c_read_buffer) { + dprintk("%s: not enough memory\n", __func__); + ret = -ENOMEM; + goto error_memory; + } + + client.i2c_addr = default_addr + 16; + dib9000_i2c_write16(&client, 1796, 0x0); + + 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\n", k); + ret = -EIO; + goto error; + } + } + + 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)\n", 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); + } + +error: + kfree(client.i2c_read_buffer); +error_memory: + kfree(client.i2c_write_buffer); + + return ret; +} +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\n", fe_slave, index_frontend); + state->fe[index_frontend] = fe_slave; + return 0; + } + + dprintk("too many slave frontend\n"); + return -ENOMEM; +} +EXPORT_SYMBOL(dib9000_set_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 const 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) { + kfree(st); + 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->i2c.i2c_write_buffer = st->i2c_write_buffer; + st->i2c.i2c_read_buffer = st->i2c_read_buffer; + + st->gpio_dir = DIB9000_GPIO_DEFAULT_DIRECTIONS; + st->gpio_val = DIB9000_GPIO_DEFAULT_VALUES; + st->gpio_pwm_pos = DIB9000_GPIO_DEFAULT_PWM_POS; + + mutex_init(&st->platform.risc.mbx_if_lock); + mutex_init(&st->platform.risc.mbx_lock); + mutex_init(&st->platform.risc.mem_lock); + mutex_init(&st->platform.risc.mem_mbx_lock); + mutex_init(&st->demod_lock); + st->get_frontend_internal = 0; + + st->pid_ctrl_index = -2; + + 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; + strscpy(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; + strscpy(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_GPL(dib9000_attach); + +static const struct dvb_frontend_ops dib9000_ops = { + .delsys = { SYS_DVBT }, + .info = { + .name = "DiBcom 9000", + .frequency_min_hz = 44250 * kHz, + .frequency_max_hz = 867250 * kHz, + .frequency_stepsize_hz = 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 <patrick.boettcher@posteo.de>"); +MODULE_AUTHOR("Olivier Grenie <olivier.grenie@parrot.com>"); +MODULE_DESCRIPTION("Driver for the DiBcom 9000 COFDM demodulator"); +MODULE_LICENSE("GPL"); |