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Diffstat (limited to 'drivers/media/dvb/frontends/stb6100.c')
-rw-r--r--drivers/media/dvb/frontends/stb6100.c611
1 files changed, 0 insertions, 611 deletions
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c
deleted file mode 100644
index 2e93e65d2cdb..000000000000
--- a/drivers/media/dvb/frontends/stb6100.c
+++ /dev/null
@@ -1,611 +0,0 @@
-/*
- STB6100 Silicon Tuner
- Copyright (C) Manu Abraham (abraham.manu@gmail.com)
-
- Copyright (C) ST Microelectronics
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include "dvb_frontend.h"
-#include "stb6100.h"
-
-static unsigned int verbose;
-module_param(verbose, int, 0644);
-
-
-#define FE_ERROR 0
-#define FE_NOTICE 1
-#define FE_INFO 2
-#define FE_DEBUG 3
-
-#define dprintk(x, y, z, format, arg...) do { \
- if (z) { \
- if ((x > FE_ERROR) && (x > y)) \
- printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
- else if ((x > FE_NOTICE) && (x > y)) \
- printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
- else if ((x > FE_INFO) && (x > y)) \
- printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
- else if ((x > FE_DEBUG) && (x > y)) \
- printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
- } else { \
- if (x > y) \
- printk(format, ##arg); \
- } \
-} while (0)
-
-struct stb6100_lkup {
- u32 val_low;
- u32 val_high;
- u8 reg;
-};
-
-static int stb6100_release(struct dvb_frontend *fe);
-
-static const struct stb6100_lkup lkup[] = {
- { 0, 950000, 0x0a },
- { 950000, 1000000, 0x0a },
- { 1000000, 1075000, 0x0c },
- { 1075000, 1200000, 0x00 },
- { 1200000, 1300000, 0x01 },
- { 1300000, 1370000, 0x02 },
- { 1370000, 1470000, 0x04 },
- { 1470000, 1530000, 0x05 },
- { 1530000, 1650000, 0x06 },
- { 1650000, 1800000, 0x08 },
- { 1800000, 1950000, 0x0a },
- { 1950000, 2150000, 0x0c },
- { 2150000, 9999999, 0x0c },
- { 0, 0, 0x00 }
-};
-
-/* Register names for easy debugging. */
-static const char *stb6100_regnames[] = {
- [STB6100_LD] = "LD",
- [STB6100_VCO] = "VCO",
- [STB6100_NI] = "NI",
- [STB6100_NF_LSB] = "NF",
- [STB6100_K] = "K",
- [STB6100_G] = "G",
- [STB6100_F] = "F",
- [STB6100_DLB] = "DLB",
- [STB6100_TEST1] = "TEST1",
- [STB6100_FCCK] = "FCCK",
- [STB6100_LPEN] = "LPEN",
- [STB6100_TEST3] = "TEST3",
-};
-
-/* Template for normalisation, i.e. setting unused or undocumented
- * bits as required according to the documentation.
- */
-struct stb6100_regmask {
- u8 mask;
- u8 set;
-};
-
-static const struct stb6100_regmask stb6100_template[] = {
- [STB6100_LD] = { 0xff, 0x00 },
- [STB6100_VCO] = { 0xff, 0x00 },
- [STB6100_NI] = { 0xff, 0x00 },
- [STB6100_NF_LSB] = { 0xff, 0x00 },
- [STB6100_K] = { 0xc7, 0x38 },
- [STB6100_G] = { 0xef, 0x10 },
- [STB6100_F] = { 0x1f, 0xc0 },
- [STB6100_DLB] = { 0x38, 0xc4 },
- [STB6100_TEST1] = { 0x00, 0x8f },
- [STB6100_FCCK] = { 0x40, 0x0d },
- [STB6100_LPEN] = { 0xf0, 0x0b },
- [STB6100_TEST3] = { 0x00, 0xde },
-};
-
-/*
- * Currently unused. Some boards might need it in the future
- */
-static inline void stb6100_normalise_regs(u8 regs[])
-{
- int i;
-
- for (i = 0; i < STB6100_NUMREGS; i++)
- regs[i] = (regs[i] & stb6100_template[i].mask) | stb6100_template[i].set;
-}
-
-static int stb6100_read_regs(struct stb6100_state *state, u8 regs[])
-{
- int rc;
- struct i2c_msg msg = {
- .addr = state->config->tuner_address,
- .flags = I2C_M_RD,
- .buf = regs,
- .len = STB6100_NUMREGS
- };
-
- rc = i2c_transfer(state->i2c, &msg, 1);
- if (unlikely(rc != 1)) {
- dprintk(verbose, FE_ERROR, 1, "Read (0x%x) err, rc=[%d]",
- state->config->tuner_address, rc);
-
- return -EREMOTEIO;
- }
- if (unlikely(verbose > FE_DEBUG)) {
- int i;
-
- dprintk(verbose, FE_DEBUG, 1, " Read from 0x%02x", state->config->tuner_address);
- for (i = 0; i < STB6100_NUMREGS; i++)
- dprintk(verbose, FE_DEBUG, 1, " %s: 0x%02x", stb6100_regnames[i], regs[i]);
- }
- return 0;
-}
-
-static int stb6100_read_reg(struct stb6100_state *state, u8 reg)
-{
- u8 regs[STB6100_NUMREGS];
-
- struct i2c_msg msg = {
- .addr = state->config->tuner_address + reg,
- .flags = I2C_M_RD,
- .buf = regs,
- .len = 1
- };
-
- i2c_transfer(state->i2c, &msg, 1);
-
- if (unlikely(reg >= STB6100_NUMREGS)) {
- dprintk(verbose, FE_ERROR, 1, "Invalid register offset 0x%x", reg);
- return -EINVAL;
- }
- if (unlikely(verbose > FE_DEBUG)) {
- dprintk(verbose, FE_DEBUG, 1, " Read from 0x%02x", state->config->tuner_address);
- dprintk(verbose, FE_DEBUG, 1, " %s: 0x%02x", stb6100_regnames[reg], regs[0]);
- }
-
- return (unsigned int)regs[0];
-}
-
-static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int start, int len)
-{
- int rc;
- u8 cmdbuf[len + 1];
- struct i2c_msg msg = {
- .addr = state->config->tuner_address,
- .flags = 0,
- .buf = cmdbuf,
- .len = len + 1
- };
-
- if (unlikely(start < 1 || start + len > STB6100_NUMREGS)) {
- dprintk(verbose, FE_ERROR, 1, "Invalid register range %d:%d",
- start, len);
- return -EINVAL;
- }
- memcpy(&cmdbuf[1], buf, len);
- cmdbuf[0] = start;
-
- if (unlikely(verbose > FE_DEBUG)) {
- int i;
-
- dprintk(verbose, FE_DEBUG, 1, " Write @ 0x%02x: [%d:%d]", state->config->tuner_address, start, len);
- for (i = 0; i < len; i++)
- dprintk(verbose, FE_DEBUG, 1, " %s: 0x%02x", stb6100_regnames[start + i], buf[i]);
- }
- rc = i2c_transfer(state->i2c, &msg, 1);
- if (unlikely(rc != 1)) {
- dprintk(verbose, FE_ERROR, 1, "(0x%x) write err [%d:%d], rc=[%d]",
- (unsigned int)state->config->tuner_address, start, len, rc);
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int stb6100_write_reg(struct stb6100_state *state, u8 reg, u8 data)
-{
- if (unlikely(reg >= STB6100_NUMREGS)) {
- dprintk(verbose, FE_ERROR, 1, "Invalid register offset 0x%x", reg);
- return -EREMOTEIO;
- }
- data = (data & stb6100_template[reg].mask) | stb6100_template[reg].set;
- return stb6100_write_reg_range(state, &data, reg, 1);
-}
-
-
-static int stb6100_get_status(struct dvb_frontend *fe, u32 *status)
-{
- int rc;
- struct stb6100_state *state = fe->tuner_priv;
-
- rc = stb6100_read_reg(state, STB6100_LD);
- if (rc < 0) {
- dprintk(verbose, FE_ERROR, 1, "%s failed", __func__);
- return rc;
- }
- return (rc & STB6100_LD_LOCK) ? TUNER_STATUS_LOCKED : 0;
-}
-
-static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
-{
- int rc;
- u8 f;
- struct stb6100_state *state = fe->tuner_priv;
-
- rc = stb6100_read_reg(state, STB6100_F);
- if (rc < 0)
- return rc;
- f = rc & STB6100_F_F;
-
- state->status.bandwidth = (f + 5) * 2000; /* x2 for ZIF */
-
- *bandwidth = state->bandwidth = state->status.bandwidth * 1000;
- dprintk(verbose, FE_DEBUG, 1, "bandwidth = %u Hz", state->bandwidth);
- return 0;
-}
-
-static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
-{
- u32 tmp;
- int rc;
- struct stb6100_state *state = fe->tuner_priv;
-
- dprintk(verbose, FE_DEBUG, 1, "set bandwidth to %u Hz", bandwidth);
-
- bandwidth /= 2; /* ZIF */
-
- if (bandwidth >= 36000000) /* F[4:0] BW/2 max =31+5=36 mhz for F=31 */
- tmp = 31;
- else if (bandwidth <= 5000000) /* bw/2 min = 5Mhz for F=0 */
- tmp = 0;
- else /* if 5 < bw/2 < 36 */
- tmp = (bandwidth + 500000) / 1000000 - 5;
-
- /* Turn on LPF bandwidth setting clock control,
- * set bandwidth, wait 10ms, turn off.
- */
- rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d | STB6100_FCCK_FCCK);
- if (rc < 0)
- return rc;
- rc = stb6100_write_reg(state, STB6100_F, 0xc0 | tmp);
- if (rc < 0)
- return rc;
-
- msleep(5); /* This is dangerous as another (related) thread may start */
-
- rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d);
- if (rc < 0)
- return rc;
-
- msleep(10); /* This is dangerous as another (related) thread may start */
-
- return 0;
-}
-
-static int stb6100_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- int rc;
- u32 nint, nfrac, fvco;
- int psd2, odiv;
- struct stb6100_state *state = fe->tuner_priv;
- u8 regs[STB6100_NUMREGS];
-
- rc = stb6100_read_regs(state, regs);
- if (rc < 0)
- return rc;
-
- odiv = (regs[STB6100_VCO] & STB6100_VCO_ODIV) >> STB6100_VCO_ODIV_SHIFT;
- psd2 = (regs[STB6100_K] & STB6100_K_PSD2) >> STB6100_K_PSD2_SHIFT;
- nint = regs[STB6100_NI];
- nfrac = ((regs[STB6100_K] & STB6100_K_NF_MSB) << 8) | regs[STB6100_NF_LSB];
- fvco = (nfrac * state->reference >> (9 - psd2)) + (nint * state->reference << psd2);
- *frequency = state->frequency = fvco >> (odiv + 1);
-
- dprintk(verbose, FE_DEBUG, 1,
- "frequency = %u kHz, odiv = %u, psd2 = %u, fxtal = %u kHz, fvco = %u kHz, N(I) = %u, N(F) = %u",
- state->frequency, odiv, psd2, state->reference, fvco, nint, nfrac);
- return 0;
-}
-
-
-static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
-{
- int rc;
- const struct stb6100_lkup *ptr;
- struct stb6100_state *state = fe->tuner_priv;
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-
- u32 srate = 0, fvco, nint, nfrac;
- u8 regs[STB6100_NUMREGS];
- u8 g, psd2, odiv;
-
- dprintk(verbose, FE_DEBUG, 1, "Version 2010-8-14 13:51");
-
- if (fe->ops.get_frontend) {
- dprintk(verbose, FE_DEBUG, 1, "Get frontend parameters");
- fe->ops.get_frontend(fe);
- }
- srate = p->symbol_rate;
-
- /* Set up tuner cleanly, LPF calibration on */
- rc = stb6100_write_reg(state, STB6100_FCCK, 0x4d | STB6100_FCCK_FCCK);
- if (rc < 0)
- return rc; /* allow LPF calibration */
-
- /* PLL Loop disabled, bias on, VCO on, synth on */
- regs[STB6100_LPEN] = 0xeb;
- rc = stb6100_write_reg(state, STB6100_LPEN, regs[STB6100_LPEN]);
- if (rc < 0)
- return rc;
-
- /* Program the registers with their data values */
-
- /* VCO divide ratio (LO divide ratio, VCO prescaler enable). */
- if (frequency <= 1075000)
- odiv = 1;
- else
- odiv = 0;
-
- /* VCO enabled, search clock off as per LL3.7, 3.4.1 */
- regs[STB6100_VCO] = 0xe0 | (odiv << STB6100_VCO_ODIV_SHIFT);
-
- /* OSM */
- for (ptr = lkup;
- (ptr->val_high != 0) && !CHKRANGE(frequency, ptr->val_low, ptr->val_high);
- ptr++);
-
- if (ptr->val_high == 0) {
- printk(KERN_ERR "%s: frequency out of range: %u kHz\n", __func__, frequency);
- return -EINVAL;
- }
- regs[STB6100_VCO] = (regs[STB6100_VCO] & ~STB6100_VCO_OSM) | ptr->reg;
- rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
- if (rc < 0)
- return rc;
-
- if ((frequency > 1075000) && (frequency <= 1325000))
- psd2 = 0;
- else
- psd2 = 1;
- /* F(VCO) = F(LO) * (ODIV == 0 ? 2 : 4) */
- fvco = frequency << (1 + odiv);
- /* N(I) = floor(f(VCO) / (f(XTAL) * (PSD2 ? 2 : 1))) */
- nint = fvco / (state->reference << psd2);
- /* N(F) = round(f(VCO) / f(XTAL) * (PSD2 ? 2 : 1) - N(I)) * 2 ^ 9 */
- nfrac = DIV_ROUND_CLOSEST((fvco - (nint * state->reference << psd2))
- << (9 - psd2), state->reference);
-
- /* NI */
- regs[STB6100_NI] = nint;
- rc = stb6100_write_reg(state, STB6100_NI, regs[STB6100_NI]);
- if (rc < 0)
- return rc;
-
- /* NF */
- regs[STB6100_NF_LSB] = nfrac;
- rc = stb6100_write_reg(state, STB6100_NF_LSB, regs[STB6100_NF_LSB]);
- if (rc < 0)
- return rc;
-
- /* K */
- regs[STB6100_K] = (0x38 & ~STB6100_K_PSD2) | (psd2 << STB6100_K_PSD2_SHIFT);
- regs[STB6100_K] = (regs[STB6100_K] & ~STB6100_K_NF_MSB) | ((nfrac >> 8) & STB6100_K_NF_MSB);
- rc = stb6100_write_reg(state, STB6100_K, regs[STB6100_K]);
- if (rc < 0)
- return rc;
-
- /* G Baseband gain. */
- if (srate >= 15000000)
- g = 9; /* +4 dB */
- else if (srate >= 5000000)
- g = 11; /* +8 dB */
- else
- g = 14; /* +14 dB */
-
- regs[STB6100_G] = (0x10 & ~STB6100_G_G) | g;
- regs[STB6100_G] &= ~STB6100_G_GCT; /* mask GCT */
- regs[STB6100_G] |= (1 << 5); /* 2Vp-p Mode */
- rc = stb6100_write_reg(state, STB6100_G, regs[STB6100_G]);
- if (rc < 0)
- return rc;
-
- /* F we don't write as it is set up in BW set */
-
- /* DLB set DC servo loop BW to 160Hz (LLA 3.8 / 2.1) */
- regs[STB6100_DLB] = 0xcc;
- rc = stb6100_write_reg(state, STB6100_DLB, regs[STB6100_DLB]);
- if (rc < 0)
- return rc;
-
- dprintk(verbose, FE_DEBUG, 1,
- "frequency = %u, srate = %u, g = %u, odiv = %u, psd2 = %u, fxtal = %u, osm = %u, fvco = %u, N(I) = %u, N(F) = %u",
- frequency, srate, (unsigned int)g, (unsigned int)odiv,
- (unsigned int)psd2, state->reference,
- ptr->reg, fvco, nint, nfrac);
-
- /* Set up the test registers */
- regs[STB6100_TEST1] = 0x8f;
- rc = stb6100_write_reg(state, STB6100_TEST1, regs[STB6100_TEST1]);
- if (rc < 0)
- return rc;
- regs[STB6100_TEST3] = 0xde;
- rc = stb6100_write_reg(state, STB6100_TEST3, regs[STB6100_TEST3]);
- if (rc < 0)
- return rc;
-
- /* Bring up tuner according to LLA 3.7 3.4.1, step 2 */
- regs[STB6100_LPEN] = 0xfb; /* PLL Loop enabled, bias on, VCO on, synth on */
- rc = stb6100_write_reg(state, STB6100_LPEN, regs[STB6100_LPEN]);
- if (rc < 0)
- return rc;
-
- msleep(2);
-
- /* Bring up tuner according to LLA 3.7 3.4.1, step 3 */
- regs[STB6100_VCO] &= ~STB6100_VCO_OCK; /* VCO fast search */
- rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
- if (rc < 0)
- return rc;
-
- msleep(10); /* This is dangerous as another (related) thread may start */ /* wait for LO to lock */
-
- regs[STB6100_VCO] &= ~STB6100_VCO_OSCH; /* vco search disabled */
- regs[STB6100_VCO] |= STB6100_VCO_OCK; /* search clock off */
- rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
- if (rc < 0)
- return rc;
-
- rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d);
- if (rc < 0)
- return rc; /* Stop LPF calibration */
-
- msleep(10); /* This is dangerous as another (related) thread may start */
- /* wait for stabilisation, (should not be necessary) */
- return 0;
-}
-
-static int stb6100_sleep(struct dvb_frontend *fe)
-{
- /* TODO: power down */
- return 0;
-}
-
-static int stb6100_init(struct dvb_frontend *fe)
-{
- struct stb6100_state *state = fe->tuner_priv;
- struct tuner_state *status = &state->status;
-
- status->tunerstep = 125000;
- status->ifreq = 0;
- status->refclock = 27000000; /* Hz */
- status->iqsense = 1;
- status->bandwidth = 36000; /* kHz */
- state->bandwidth = status->bandwidth * 1000; /* Hz */
- state->reference = status->refclock / 1000; /* kHz */
-
- /* Set default bandwidth. Modified, PN 13-May-10 */
- return 0;
-}
-
-static int stb6100_get_state(struct dvb_frontend *fe,
- enum tuner_param param,
- struct tuner_state *state)
-{
- switch (param) {
- case DVBFE_TUNER_FREQUENCY:
- stb6100_get_frequency(fe, &state->frequency);
- break;
- case DVBFE_TUNER_TUNERSTEP:
- break;
- case DVBFE_TUNER_IFFREQ:
- break;
- case DVBFE_TUNER_BANDWIDTH:
- stb6100_get_bandwidth(fe, &state->bandwidth);
- break;
- case DVBFE_TUNER_REFCLOCK:
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-static int stb6100_set_state(struct dvb_frontend *fe,
- enum tuner_param param,
- struct tuner_state *state)
-{
- struct stb6100_state *tstate = fe->tuner_priv;
-
- switch (param) {
- case DVBFE_TUNER_FREQUENCY:
- stb6100_set_frequency(fe, state->frequency);
- tstate->frequency = state->frequency;
- break;
- case DVBFE_TUNER_TUNERSTEP:
- break;
- case DVBFE_TUNER_IFFREQ:
- break;
- case DVBFE_TUNER_BANDWIDTH:
- stb6100_set_bandwidth(fe, state->bandwidth);
- tstate->bandwidth = state->bandwidth;
- break;
- case DVBFE_TUNER_REFCLOCK:
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-static struct dvb_tuner_ops stb6100_ops = {
- .info = {
- .name = "STB6100 Silicon Tuner",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_step = 0,
- },
-
- .init = stb6100_init,
- .sleep = stb6100_sleep,
- .get_status = stb6100_get_status,
- .get_state = stb6100_get_state,
- .set_state = stb6100_set_state,
- .release = stb6100_release
-};
-
-struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
- const struct stb6100_config *config,
- struct i2c_adapter *i2c)
-{
- struct stb6100_state *state = NULL;
-
- state = kzalloc(sizeof (struct stb6100_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- state->config = config;
- state->i2c = i2c;
- state->frontend = fe;
- state->reference = config->refclock / 1000; /* kHz */
- fe->tuner_priv = state;
- fe->ops.tuner_ops = stb6100_ops;
-
- printk("%s: Attaching STB6100 \n", __func__);
- return fe;
-
-error:
- kfree(state);
- return NULL;
-}
-
-static int stb6100_release(struct dvb_frontend *fe)
-{
- struct stb6100_state *state = fe->tuner_priv;
-
- fe->tuner_priv = NULL;
- kfree(state);
-
- return 0;
-}
-
-EXPORT_SYMBOL(stb6100_attach);
-MODULE_PARM_DESC(verbose, "Set Verbosity level");
-
-MODULE_AUTHOR("Manu Abraham");
-MODULE_DESCRIPTION("STB6100 Silicon tuner");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-17 11:39:17 +0000