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Diffstat (limited to 'drivers/media/dvb/frontends/s921.c')
-rw-r--r--drivers/media/dvb/frontends/s921.c549
1 files changed, 0 insertions, 549 deletions
diff --git a/drivers/media/dvb/frontends/s921.c b/drivers/media/dvb/frontends/s921.c
deleted file mode 100644
index cd2288c07147..000000000000
--- a/drivers/media/dvb/frontends/s921.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * Sharp VA3A5JZ921 One Seg Broadcast Module driver
- * This device is labeled as just S. 921 at the top of the frontend can
- *
- * Copyright (C) 2009-2010 Mauro Carvalho Chehab <mchehab@redhat.com>
- * Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com>
- *
- * Developed for Leadership SBTVD 1seg device sold in Brazil
- *
- * Frontend module based on cx24123 driver, getting some info from
- * the old s921 driver.
- *
- * FIXME: Need to port to DVB v5.2 API
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <asm/div64.h>
-
-#include "dvb_frontend.h"
-#include "s921.h"
-
-static int debug = 1;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
-
-#define rc(args...) do { \
- printk(KERN_ERR "s921: " args); \
-} while (0)
-
-#define dprintk(args...) \
- do { \
- if (debug) { \
- printk(KERN_DEBUG "s921: %s: ", __func__); \
- printk(args); \
- } \
- } while (0)
-
-struct s921_state {
- struct i2c_adapter *i2c;
- const struct s921_config *config;
-
- struct dvb_frontend frontend;
-
- /* The Demod can't easily provide these, we cache them */
- u32 currentfreq;
-};
-
-/*
- * Various tuner defaults need to be established for a given frequency kHz.
- * fixme: The bounds on the bands do not match the doc in real life.
- * fixme: Some of them have been moved, other might need adjustment.
- */
-static struct s921_bandselect_val {
- u32 freq_low;
- u8 band_reg;
-} s921_bandselect[] = {
- { 0, 0x7b },
- { 485140000, 0x5b },
- { 515140000, 0x3b },
- { 545140000, 0x1b },
- { 599140000, 0xfb },
- { 623140000, 0xdb },
- { 659140000, 0xbb },
- { 713140000, 0x9b },
-};
-
-struct regdata {
- u8 reg;
- u8 data;
-};
-
-static struct regdata s921_init[] = {
- { 0x01, 0x80 }, /* Probably, a reset sequence */
- { 0x01, 0x40 },
- { 0x01, 0x80 },
- { 0x01, 0x40 },
-
- { 0x02, 0x00 },
- { 0x03, 0x40 },
- { 0x04, 0x01 },
- { 0x05, 0x00 },
- { 0x06, 0x00 },
- { 0x07, 0x00 },
- { 0x08, 0x00 },
- { 0x09, 0x00 },
- { 0x0a, 0x00 },
- { 0x0b, 0x5a },
- { 0x0c, 0x00 },
- { 0x0d, 0x00 },
- { 0x0f, 0x00 },
- { 0x13, 0x1b },
- { 0x14, 0x80 },
- { 0x15, 0x40 },
- { 0x17, 0x70 },
- { 0x18, 0x01 },
- { 0x19, 0x12 },
- { 0x1a, 0x01 },
- { 0x1b, 0x12 },
- { 0x1c, 0xa0 },
- { 0x1d, 0x00 },
- { 0x1e, 0x0a },
- { 0x1f, 0x08 },
- { 0x20, 0x40 },
- { 0x21, 0xff },
- { 0x22, 0x4c },
- { 0x23, 0x4e },
- { 0x24, 0x4c },
- { 0x25, 0x00 },
- { 0x26, 0x00 },
- { 0x27, 0xf4 },
- { 0x28, 0x60 },
- { 0x29, 0x88 },
- { 0x2a, 0x40 },
- { 0x2b, 0x40 },
- { 0x2c, 0xff },
- { 0x2d, 0x00 },
- { 0x2e, 0xff },
- { 0x2f, 0x00 },
- { 0x30, 0x20 },
- { 0x31, 0x06 },
- { 0x32, 0x0c },
- { 0x34, 0x0f },
- { 0x37, 0xfe },
- { 0x38, 0x00 },
- { 0x39, 0x63 },
- { 0x3a, 0x10 },
- { 0x3b, 0x10 },
- { 0x47, 0x00 },
- { 0x49, 0xe5 },
- { 0x4b, 0x00 },
- { 0x50, 0xc0 },
- { 0x52, 0x20 },
- { 0x54, 0x5a },
- { 0x55, 0x5b },
- { 0x56, 0x40 },
- { 0x57, 0x70 },
- { 0x5c, 0x50 },
- { 0x5d, 0x00 },
- { 0x62, 0x17 },
- { 0x63, 0x2f },
- { 0x64, 0x6f },
- { 0x68, 0x00 },
- { 0x69, 0x89 },
- { 0x6a, 0x00 },
- { 0x6b, 0x00 },
- { 0x6c, 0x00 },
- { 0x6d, 0x00 },
- { 0x6e, 0x00 },
- { 0x70, 0x10 },
- { 0x71, 0x00 },
- { 0x75, 0x00 },
- { 0x76, 0x30 },
- { 0x77, 0x01 },
- { 0xaf, 0x00 },
- { 0xb0, 0xa0 },
- { 0xb2, 0x3d },
- { 0xb3, 0x25 },
- { 0xb4, 0x8b },
- { 0xb5, 0x4b },
- { 0xb6, 0x3f },
- { 0xb7, 0xff },
- { 0xb8, 0xff },
- { 0xb9, 0xfc },
- { 0xba, 0x00 },
- { 0xbb, 0x00 },
- { 0xbc, 0x00 },
- { 0xd0, 0x30 },
- { 0xe4, 0x84 },
- { 0xf0, 0x48 },
- { 0xf1, 0x19 },
- { 0xf2, 0x5a },
- { 0xf3, 0x8e },
- { 0xf4, 0x2d },
- { 0xf5, 0x07 },
- { 0xf6, 0x5a },
- { 0xf7, 0xba },
- { 0xf8, 0xd7 },
-};
-
-static struct regdata s921_prefreq[] = {
- { 0x47, 0x60 },
- { 0x68, 0x00 },
- { 0x69, 0x89 },
- { 0xf0, 0x48 },
- { 0xf1, 0x19 },
-};
-
-static struct regdata s921_postfreq[] = {
- { 0xf5, 0xae },
- { 0xf6, 0xb7 },
- { 0xf7, 0xba },
- { 0xf8, 0xd7 },
- { 0x68, 0x0a },
- { 0x69, 0x09 },
-};
-
-static int s921_i2c_writereg(struct s921_state *state,
- u8 i2c_addr, int reg, int data)
-{
- u8 buf[] = { reg, data };
- struct i2c_msg msg = {
- .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2
- };
- int rc;
-
- rc = i2c_transfer(state->i2c, &msg, 1);
- if (rc != 1) {
- printk("%s: writereg rcor(rc == %i, reg == 0x%02x,"
- " data == 0x%02x)\n", __func__, rc, reg, data);
- return rc;
- }
-
- return 0;
-}
-
-static int s921_i2c_writeregdata(struct s921_state *state, u8 i2c_addr,
- struct regdata *rd, int size)
-{
- int i, rc;
-
- for (i = 0; i < size; i++) {
- rc = s921_i2c_writereg(state, i2c_addr, rd[i].reg, rd[i].data);
- if (rc < 0)
- return rc;
- }
- return 0;
-}
-
-static int s921_i2c_readreg(struct s921_state *state, u8 i2c_addr, u8 reg)
-{
- u8 val;
- int rc;
- struct i2c_msg msg[] = {
- { .addr = i2c_addr, .flags = 0, .buf = &reg, .len = 1 },
- { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 }
- };
-
- rc = i2c_transfer(state->i2c, msg, 2);
-
- if (rc != 2) {
- rc("%s: reg=0x%x (rcor=%d)\n", __func__, reg, rc);
- return rc;
- }
-
- return val;
-}
-
-#define s921_readreg(state, reg) \
- s921_i2c_readreg(state, state->config->demod_address, reg)
-#define s921_writereg(state, reg, val) \
- s921_i2c_writereg(state, state->config->demod_address, reg, val)
-#define s921_writeregdata(state, regdata) \
- s921_i2c_writeregdata(state, state->config->demod_address, \
- regdata, ARRAY_SIZE(regdata))
-
-static int s921_pll_tune(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct s921_state *state = fe->demodulator_priv;
- int band, rc, i;
- unsigned long f_offset;
- u8 f_switch;
- u64 offset;
-
- dprintk("frequency=%i\n", p->frequency);
-
- for (band = 0; band < ARRAY_SIZE(s921_bandselect); band++)
- if (p->frequency < s921_bandselect[band].freq_low)
- break;
- band--;
-
- if (band < 0) {
- rc("%s: frequency out of range\n", __func__);
- return -EINVAL;
- }
-
- f_switch = s921_bandselect[band].band_reg;
-
- offset = ((u64)p->frequency) * 258;
- do_div(offset, 6000000);
- f_offset = ((unsigned long)offset) + 2321;
-
- rc = s921_writeregdata(state, s921_prefreq);
- if (rc < 0)
- return rc;
-
- rc = s921_writereg(state, 0xf2, (f_offset >> 8) & 0xff);
- if (rc < 0)
- return rc;
-
- rc = s921_writereg(state, 0xf3, f_offset & 0xff);
- if (rc < 0)
- return rc;
-
- rc = s921_writereg(state, 0xf4, f_switch);
- if (rc < 0)
- return rc;
-
- rc = s921_writeregdata(state, s921_postfreq);
- if (rc < 0)
- return rc;
-
- for (i = 0 ; i < 6; i++) {
- rc = s921_readreg(state, 0x80);
- dprintk("status 0x80: %02x\n", rc);
- }
- rc = s921_writereg(state, 0x01, 0x40);
- if (rc < 0)
- return rc;
-
- rc = s921_readreg(state, 0x01);
- dprintk("status 0x01: %02x\n", rc);
-
- rc = s921_readreg(state, 0x80);
- dprintk("status 0x80: %02x\n", rc);
-
- rc = s921_readreg(state, 0x80);
- dprintk("status 0x80: %02x\n", rc);
-
- rc = s921_readreg(state, 0x32);
- dprintk("status 0x32: %02x\n", rc);
-
- dprintk("pll tune band=%d, pll=%d\n", f_switch, (int)f_offset);
-
- return 0;
-}
-
-static int s921_initfe(struct dvb_frontend *fe)
-{
- struct s921_state *state = fe->demodulator_priv;
- int rc;
-
- dprintk("\n");
-
- rc = s921_writeregdata(state, s921_init);
- if (rc < 0)
- return rc;
-
- return 0;
-}
-
-static int s921_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct s921_state *state = fe->demodulator_priv;
- int regstatus, rc;
-
- *status = 0;
-
- rc = s921_readreg(state, 0x81);
- if (rc < 0)
- return rc;
-
- regstatus = rc << 8;
-
- rc = s921_readreg(state, 0x82);
- if (rc < 0)
- return rc;
-
- regstatus |= rc;
-
- dprintk("status = %04x\n", regstatus);
-
- /* Full Sync - We don't know what each bit means on regs 0x81/0x82 */
- if ((regstatus & 0xff) == 0x40) {
- *status = FE_HAS_SIGNAL |
- FE_HAS_CARRIER |
- FE_HAS_VITERBI |
- FE_HAS_SYNC |
- FE_HAS_LOCK;
- } else if (regstatus & 0x40) {
- /* This is close to Full Sync, but not enough to get useful info */
- *status = FE_HAS_SIGNAL |
- FE_HAS_CARRIER |
- FE_HAS_VITERBI |
- FE_HAS_SYNC;
- }
-
- return 0;
-}
-
-static int s921_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
- fe_status_t status;
- struct s921_state *state = fe->demodulator_priv;
- int rc;
-
- /* FIXME: Use the proper register for it... 0x80? */
- rc = s921_read_status(fe, &status);
- if (rc < 0)
- return rc;
-
- *strength = (status & FE_HAS_LOCK) ? 0xffff : 0;
-
- dprintk("strength = 0x%04x\n", *strength);
-
- rc = s921_readreg(state, 0x01);
- dprintk("status 0x01: %02x\n", rc);
-
- rc = s921_readreg(state, 0x80);
- dprintk("status 0x80: %02x\n", rc);
-
- rc = s921_readreg(state, 0x32);
- dprintk("status 0x32: %02x\n", rc);
-
- return 0;
-}
-
-static int s921_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct s921_state *state = fe->demodulator_priv;
- int rc;
-
- dprintk("\n");
-
- /* FIXME: We don't know how to use non-auto mode */
-
- rc = s921_pll_tune(fe);
- if (rc < 0)
- return rc;
-
- state->currentfreq = p->frequency;
-
- return 0;
-}
-
-static int s921_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct s921_state *state = fe->demodulator_priv;
-
- /* FIXME: Probably it is possible to get it from regs f1 and f2 */
- p->frequency = state->currentfreq;
- p->delivery_system = SYS_ISDBT;
-
- return 0;
-}
-
-static int s921_tune(struct dvb_frontend *fe,
- bool re_tune,
- unsigned int mode_flags,
- unsigned int *delay,
- fe_status_t *status)
-{
- int rc = 0;
-
- dprintk("\n");
-
- if (re_tune)
- rc = s921_set_frontend(fe);
-
- if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
- s921_read_status(fe, status);
-
- return rc;
-}
-
-static int s921_get_algo(struct dvb_frontend *fe)
-{
- return 1; /* FE_ALGO_HW */
-}
-
-static void s921_release(struct dvb_frontend *fe)
-{
- struct s921_state *state = fe->demodulator_priv;
-
- dprintk("\n");
- kfree(state);
-}
-
-static struct dvb_frontend_ops s921_ops;
-
-struct dvb_frontend *s921_attach(const struct s921_config *config,
- struct i2c_adapter *i2c)
-{
- /* allocate memory for the internal state */
- struct s921_state *state =
- kzalloc(sizeof(struct s921_state), GFP_KERNEL);
-
- dprintk("\n");
- if (state == NULL) {
- rc("Unable to kzalloc\n");
- goto rcor;
- }
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &s921_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- return &state->frontend;
-
-rcor:
- kfree(state);
-
- return NULL;
-}
-EXPORT_SYMBOL(s921_attach);
-
-static struct dvb_frontend_ops s921_ops = {
- .delsys = { SYS_ISDBT },
- /* Use dib8000 values per default */
- .info = {
- .name = "Sharp S921",
- .frequency_min = 470000000,
- /*
- * Max should be 770MHz instead, according with Sharp docs,
- * but Leadership doc says it works up to 806 MHz. This is
- * required to get channel 69, used in Brazil
- */
- .frequency_max = 806000000,
- .frequency_tolerance = 0,
- .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 = s921_release,
-
- .init = s921_initfe,
- .set_frontend = s921_set_frontend,
- .get_frontend = s921_get_frontend,
- .read_status = s921_read_status,
- .read_signal_strength = s921_read_signal_strength,
- .tune = s921_tune,
- .get_frontend_algo = s921_get_algo,
-};
-
-MODULE_DESCRIPTION("DVB Frontend module for Sharp S921 hardware");
-MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
-MODULE_AUTHOR("Douglas Landgraf <dougsland@redhat.com>");
-MODULE_LICENSE("GPL");
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