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dib9000.c
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dib9000.c
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// 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 = len < chunk_size ? 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 = len < chunk_size ? 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);