Re: [PATCH][2.6][8/14] some more frontend drivers to converted tokernel i2c
From: Michael Hunold
Date: Fri Sep 17 2004 - 10:07:36 EST
- [DVB] nxt6000, sp887x: convert from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay()
- [DVB] sp887x: move from home-brewn firmware loading to firmware_class
Signed-off-by: Michael Hunold <hunold@xxxxxxxxxxx>
diff -uraNwB xx-linux-2.6.8.1/drivers/media/dvb/frontends/nxt6000.c linux-2.6.8.1-patched/drivers/media/dvb/frontends/nxt6000.c
--- xx-linux-2.6.8.1/drivers/media/dvb/frontends/nxt6000.c 2004-07-19 19:40:04.000000000 +0200
+++ linux-2.6.8.1-patched/drivers/media/dvb/frontends/nxt6000.c 2004-08-18 19:52:17.000000000 +0200
@@ -36,11 +34,11 @@
#include "dvb_frontend.h"
#include "nxt6000.h"
-static int debug = 0;
-
MODULE_DESCRIPTION("NxtWave NXT6000 DVB demodulator driver");
MODULE_AUTHOR("Florian Schirmer");
MODULE_LICENSE("GPL");
+
+static int debug = 0;
MODULE_PARM(debug, "i");
static struct dvb_frontend_info nxt6000_info = {
@@ -68,20 +65,21 @@
u8 tuner_addr;
u8 tuner_type;
u8 clock_inversion;
+ struct i2c_adapter *i2c;
+ struct dvb_adapter *dvb;
};
#define TUNER_TYPE_ALP510 0
#define TUNER_TYPE_SP5659 1
#define TUNER_TYPE_SP5730 2
-#define FE2NXT(fe) ((struct nxt6000_config *)((fe)->data))
+// #define FE2NXT(fe) ((struct nxt6000_config *)((fe)->data))
#define FREQ2DIV(freq) ((freq + 36166667) / 166667)
#define dprintk if (debug) printk
-static int nxt6000_write(struct dvb_i2c_bus *i2c, u8 addr, u8 reg, u8 data)
+static int nxt6000_write(struct i2c_adapter *i2c, u8 addr, u8 reg, u8 data)
{
-
u8 buf[] = {reg, data};
struct i2c_msg msg = {.addr = addr >> 1, .flags = 0, .buf = buf, .len = 2};
int ret;
@@ -86,7 +84,7 @@
struct i2c_msg msg = {.addr = addr >> 1, .flags = 0, .buf = buf, .len = 2};
int ret;
- if ((ret = i2c->xfer(i2c, &msg, 1)) != 1)
+ if ((ret = i2c_transfer(i2c, &msg, 1)) != 1)
dprintk("nxt6000: nxt6000_write error (.addr = 0x%02X, reg: 0x%02X, data: 0x%02X, ret: %d)\n", addr, reg, data, ret);
return (ret != 1) ? -EFAULT : 0;
@@ -90,21 +88,15 @@
dprintk("nxt6000: nxt6000_write error (.addr = 0x%02X, reg: 0x%02X, data: 0x%02X, ret: %d)\n", addr, reg, data, ret);
return (ret != 1) ? -EFAULT : 0;
-
}
-static u8 nxt6000_writereg(struct dvb_frontend *fe, u8 reg, u8 data)
+static u8 nxt6000_writereg(struct nxt6000_config *nxt, u8 reg, u8 data)
{
-
- struct nxt6000_config *nxt = FE2NXT(fe);
-
- return nxt6000_write(fe->i2c, nxt->demod_addr, reg, data);
-
+ return nxt6000_write(nxt->i2c, nxt->demod_addr, reg, data);
}
-static u8 nxt6000_read(struct dvb_i2c_bus *i2c, u8 addr, u8 reg)
+static u8 nxt6000_read(struct i2c_adapter *i2c, u8 addr, u8 reg)
{
-
int ret;
u8 b0[] = {reg};
u8 b1[] = {0};
@@ -113,7 +105,7 @@
{.addr = addr >> 1,.flags = I2C_M_RD,.buf = b1,.len = 1}
};
- ret = i2c->xfer(i2c, msgs, 2);
+ ret = i2c_transfer(i2c, msgs, 2);
if (ret != 2)
dprintk("nxt6000: nxt6000_read error (.addr = 0x%02X, reg: 0x%02X, ret: %d)\n", addr, reg, ret);
@@ -119,33 +111,28 @@
dprintk("nxt6000: nxt6000_read error (.addr = 0x%02X, reg: 0x%02X, ret: %d)\n", addr, reg, ret);
return b1[0];
-
}
-static u8 nxt6000_readreg(struct dvb_frontend *fe, u8 reg)
+static u8 nxt6000_readreg(struct nxt6000_config *nxt, u8 reg)
{
-
- struct nxt6000_config *nxt = FE2NXT(fe);
-
- return nxt6000_read(fe->i2c, nxt->demod_addr, reg);
+ return nxt6000_read(nxt->i2c, nxt->demod_addr, reg);
}
-static int pll_test(struct dvb_i2c_bus *i2c, u8 demod_addr, u8 tuner_addr)
+static int pll_test(struct i2c_adapter *i2c, u8 demod_addr, u8 tuner_addr)
{
u8 buf [1];
struct i2c_msg msg = {.addr = tuner_addr >> 1,.flags = I2C_M_RD,.buf = buf,.len = 1 };
int ret;
nxt6000_write(i2c, demod_addr, ENABLE_TUNER_IIC, 0x01); /* open i2c bus switch */
- ret = i2c->xfer(i2c, &msg, 1);
+ ret = i2c_transfer(i2c, &msg, 1);
nxt6000_write(i2c, demod_addr, ENABLE_TUNER_IIC, 0x00); /* close i2c bus switch */
return (ret != 1) ? -EFAULT : 0;
}
-static int pll_write(struct dvb_i2c_bus *i2c, u8 demod_addr, u8 tuner_addr, u8 *buf, u8 len)
+static int pll_write(struct i2c_adapter *i2c, u8 demod_addr, u8 tuner_addr, u8 * buf, u8 len)
{
-
struct i2c_msg msg = {.addr = tuner_addr >> 1, .flags = 0, .buf = buf, .len = len};
int ret;
@@ -150,7 +137,7 @@
int ret;
nxt6000_write(i2c, demod_addr, ENABLE_TUNER_IIC, 0x01); /* open i2c bus switch */
- ret = i2c->xfer(i2c, &msg, 1);
+ ret = i2c_transfer(i2c, &msg, 1);
nxt6000_write(i2c, demod_addr, ENABLE_TUNER_IIC, 0x00); /* close i2c bus switch */
if (ret != 1)
@@ -157,14 +144,11 @@
dprintk("nxt6000: pll_write error %d\n", ret);
return (ret != 1) ? -EFAULT : 0;
-
}
-static int sp5659_set_tv_freq(struct dvb_frontend *fe, u32 freq)
+static int sp5659_set_tv_freq(struct nxt6000_config *nxt, u32 freq)
{
-
u8 buf[4];
- struct nxt6000_config *nxt = FE2NXT(fe);
buf[0] = (FREQ2DIV(freq) >> 8) & 0x7F;
buf[1] = FREQ2DIV(freq) & 0xFF;
@@ -179,15 +163,12 @@
else
return -EINVAL;
- return pll_write(fe->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
-
+ return pll_write(nxt->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
}
-static int alp510_set_tv_freq(struct dvb_frontend *fe, u32 freq)
+static int alp510_set_tv_freq(struct nxt6000_config *nxt, u32 freq)
{
-
u8 buf[4];
- struct nxt6000_config *nxt = FE2NXT(fe);
buf[0] = (FREQ2DIV(freq) >> 8) & 0x7F;
buf[1] = FREQ2DIV(freq) & 0xFF;
@@ -217,15 +198,12 @@
return -EINVAL;
#endif
- return pll_write(fe->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
-
+ return pll_write(nxt->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
}
-static int sp5730_set_tv_freq(struct dvb_frontend *fe, u32 freq)
+static int sp5730_set_tv_freq(struct nxt6000_config *nxt, u32 freq)
{
-
u8 buf[4];
- struct nxt6000_config *nxt = FE2NXT(fe);
buf[0] = (FREQ2DIV(freq) >> 8) & 0x7F;
buf[1] = FREQ2DIV(freq) & 0xFF;
@@ -250,13 +228,11 @@
else
return -EINVAL;
- return pll_write(fe->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
-
+ return pll_write(nxt->i2c, nxt->demod_addr, nxt->tuner_addr, buf, 4);
}
-static void nxt6000_reset(struct dvb_frontend *fe)
+static void nxt6000_reset(struct nxt6000_config *fe)
{
-
u8 val;
val = nxt6000_readreg(fe, OFDM_COR_CTL);
@@ -263,12 +239,10 @@
nxt6000_writereg(fe, OFDM_COR_CTL, val & ~COREACT);
nxt6000_writereg(fe, OFDM_COR_CTL, val | COREACT);
-
}
-static int nxt6000_set_bandwidth(struct dvb_frontend *fe, fe_bandwidth_t bandwidth)
+static int nxt6000_set_bandwidth(struct nxt6000_config *fe, fe_bandwidth_t bandwidth)
{
-
u16 nominal_rate;
int result;
@@ -302,12 +268,10 @@
return result;
return nxt6000_writereg(fe, OFDM_TRL_NOMINALRATE_2, (nominal_rate >> 8) & 0xFF);
-
}
-static int nxt6000_set_guard_interval(struct dvb_frontend *fe, fe_guard_interval_t guard_interval)
+static int nxt6000_set_guard_interval(struct nxt6000_config *fe, fe_guard_interval_t guard_interval)
{
-
switch(guard_interval) {
case GUARD_INTERVAL_1_32:
@@ -328,16 +288,12 @@
return nxt6000_writereg(fe, OFDM_COR_MODEGUARD, 0x03 | (nxt6000_readreg(fe, OFDM_COR_MODEGUARD) & ~0x03));
default:
-
return -EINVAL;
-
}
-
}
-static int nxt6000_set_inversion(struct dvb_frontend *fe, fe_spectral_inversion_t inversion)
+static int nxt6000_set_inversion(struct nxt6000_config *fe, fe_spectral_inversion_t inversion)
{
-
switch(inversion) {
case INVERSION_OFF:
@@ -353,12 +306,10 @@
return -EINVAL;
}
-
}
-static int nxt6000_set_transmission_mode(struct dvb_frontend *fe, fe_transmit_mode_t transmission_mode)
+static int nxt6000_set_transmission_mode(struct nxt6000_config *fe, fe_transmit_mode_t transmission_mode)
{
-
int result;
switch(transmission_mode) {
@@ -383,14 +331,10 @@
return -EINVAL;
}
-
}
-static void nxt6000_setup(struct dvb_frontend *fe)
+static void nxt6000_setup(struct nxt6000_config *fe)
{
-
- struct nxt6000_config *nxt = FE2NXT(fe);
-
nxt6000_writereg(fe, RS_COR_SYNC_PARAM, SYNC_PARAM);
nxt6000_writereg(fe, BER_CTRL, /*(1 << 2) |*/ (0x01 << 1) | 0x01);
nxt6000_writereg(fe, VIT_COR_CTL, VIT_COR_RESYNC);
@@ -409,7 +353,7 @@
nxt6000_writereg(fe, EN_DMD_RACQ, (1 << 7) | (3 << 4) | 2);
nxt6000_writereg(fe, DIAG_CONFIG, TB_SET);
- if (nxt->clock_inversion)
+ if (fe->clock_inversion)
nxt6000_writereg(fe, SUB_DIAG_MODE_SEL, CLKINVERSION);
else
nxt6000_writereg(fe, SUB_DIAG_MODE_SEL, 0);
@@ -415,10 +359,9 @@
nxt6000_writereg(fe, SUB_DIAG_MODE_SEL, 0);
nxt6000_writereg(fe, TS_FORMAT, 0);
-
}
-static void nxt6000_dump_status(struct dvb_frontend *fe)
+static void nxt6000_dump_status(struct nxt6000_config *fe)
{
u8 val;
@@ -673,13 +567,12 @@
val = nxt6000_readreg(fe, RF_AGC_STATUS);
printk(" RF AGC LOCK: %d,", (val >> 4) & 0x01);
-
printk("\n");
-
}
-static int nxt6000_ioctl(struct dvb_frontend *fe, unsigned int cmd, void *arg)
+static int nxt6000_ioctl(struct dvb_frontend *f, unsigned int cmd, void *arg)
{
+ struct nxt6000_config *fe = (struct nxt6000_config *) f->data;
switch (cmd) {
@@ -769,17 +659,14 @@
case FE_SET_FRONTEND:
{
- struct nxt6000_config *nxt = FE2NXT(fe);
struct dvb_frontend_parameters *param = (struct dvb_frontend_parameters *)arg;
int result;
- switch(nxt->tuner_type) {
+ switch (fe->tuner_type) {
case TUNER_TYPE_ALP510:
-
if ((result = alp510_set_tv_freq(fe, param->frequency)) < 0)
return result;
-
break;
case TUNER_TYPE_SP5659:
@@ -826,42 +705,41 @@
static u8 demod_addr_tbl[] = {0x14, 0x18, 0x24, 0x28};
-static int nxt6000_attach(struct dvb_i2c_bus *i2c, void **data)
+static struct i2c_client client_template;
+
+static int attach_adapter(struct i2c_adapter *adapter)
{
+ struct i2c_client *client;
+ struct nxt6000_config *nxt;
u8 addr_nr;
- u8 fe_count = 0;
- struct nxt6000_config *pnxt;
-
- dprintk("nxt6000: attach\n");
+ int ret;
- pnxt = kmalloc(sizeof(demod_addr_tbl)*sizeof(struct nxt6000_config), GFP_KERNEL);
- if (NULL == pnxt) {
- dprintk("nxt6000: no memory for private data.\n");
+ if ((nxt = kmalloc(sizeof(struct nxt6000_config), GFP_KERNEL)) == NULL)
return -ENOMEM;
- }
- *data = pnxt;
+
+ memset(nxt, 0, sizeof(*nxt));
+ nxt->i2c = adapter;
for (addr_nr = 0; addr_nr < sizeof(demod_addr_tbl); addr_nr++) {
- struct nxt6000_config *nxt = &pnxt[addr_nr];
- if (nxt6000_read(i2c, demod_addr_tbl[addr_nr], OFDM_MSC_REV) != NXT6000ASICDEVICE)
+ if (nxt6000_read(adapter, demod_addr_tbl[addr_nr], OFDM_MSC_REV) != NXT6000ASICDEVICE)
continue;
- if (pll_test(i2c, demod_addr_tbl[addr_nr], 0xC0) == 0) {
+ if (pll_test(adapter, demod_addr_tbl[addr_nr], 0xC0) == 0) {
nxt->tuner_addr = 0xC0;
nxt->tuner_type = TUNER_TYPE_ALP510;
nxt->clock_inversion = 1;
dprintk("nxt6000: detected TI ALP510 tuner at 0x%02X\n", nxt->tuner_addr);
- } else if (pll_test(i2c, demod_addr_tbl[addr_nr], 0xC2) == 0) {
+ } else if (pll_test(adapter, demod_addr_tbl[addr_nr], 0xC2) == 0) {
nxt->tuner_addr = 0xC2;
nxt->tuner_type = TUNER_TYPE_SP5659;
nxt->clock_inversion = 0;
dprintk("nxt6000: detected MITEL SP5659 tuner at 0x%02X\n", nxt->tuner_addr);
- } else if (pll_test(i2c, demod_addr_tbl[addr_nr], 0xC0) == 0) {
+ } else if (pll_test(adapter, demod_addr_tbl[addr_nr], 0xC0) == 0) {
nxt->tuner_addr = 0xC0;
nxt->tuner_type = TUNER_TYPE_SP5730;
nxt->clock_inversion = 0;
@@ -872,48 +750,99 @@
printk("nxt6000: unable to detect tuner\n");
continue;
}
-
- nxt->demod_addr = demod_addr_tbl[addr_nr];
-
- dprintk("nxt6000: attached at %d:%d\n", i2c->adapter->num, i2c->id);
-
- dvb_register_frontend(nxt6000_ioctl, i2c, (void *)nxt, &nxt6000_info);
-
- fe_count++;
}
- if (fe_count == 0) {
- kfree(pnxt);
+ if (addr_nr == sizeof(demod_addr_tbl)) {
+ kfree(nxt);
return -ENODEV;
}
- return 0;
+ nxt->demod_addr = demod_addr_tbl[addr_nr];
+
+ if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+ kfree(nxt);
+ return -ENOMEM;
}
-static void nxt6000_detach(struct dvb_i2c_bus *i2c, void *data)
-{
- struct nxt6000_config *pnxt = (struct nxt6000_config *)data;
- dprintk("nxt6000: detach\n");
- dvb_unregister_frontend(nxt6000_ioctl, i2c);
- kfree(pnxt);
+ memcpy(client, &client_template, sizeof(struct i2c_client));
+ client->adapter = adapter;
+ client->addr = demod_addr_tbl[addr_nr];
+ i2c_set_clientdata(client, (void *) nxt);
+
+ ret = i2c_attach_client(client);
+ if (ret)
+ goto out;
+
+ BUG_ON(!nxt->dvb);
+
+ ret = dvb_register_frontend(nxt6000_ioctl, nxt->dvb, nxt, &nxt6000_info, THIS_MODULE);
+ if (ret) {
+ i2c_detach_client(client);
+ goto out;
+ }
+
+ ret = 0;
+out:
+ kfree(client);
+ kfree(nxt);
+ return ret;
+}
+
+static int detach_client(struct i2c_client *client)
+{
+ struct nxt6000_config *state = (struct nxt6000_config *) i2c_get_clientdata(client);
+ dvb_unregister_frontend_new(nxt6000_ioctl, state->dvb);
+ i2c_detach_client(client);
+ BUG_ON(state->dvb);
+ kfree(client);
+ kfree(state);
+ return 0;
}
-static __init int nxt6000_init(void)
+static int command(struct i2c_client *client, unsigned int cmd, void *arg)
{
+ struct nxt6000_config *state = (struct nxt6000_config *) i2c_get_clientdata(client);
- dprintk("nxt6000: init\n");
+ switch (cmd) {
+ case FE_REGISTER:{
+ state->dvb = (struct dvb_adapter *) arg;
+ break;
+ }
+ case FE_UNREGISTER:{
+ state->dvb = NULL;
+ break;
+ }
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
- return dvb_register_i2c_device(THIS_MODULE, nxt6000_attach, nxt6000_detach);
+static struct i2c_driver driver = {
+ .owner = THIS_MODULE,
+ .name = "nxt6000",
+ .id = I2C_DRIVERID_DVBFE_NXT6000,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = attach_adapter,
+ .detach_client = detach_client,
+ .command = command,
+};
+static struct i2c_client client_template = {
+ I2C_DEVNAME("nxt6000"),
+ .flags = I2C_CLIENT_ALLOW_USE,
+ .driver = &driver,
+};
+
+static __init int nxt6000_init(void)
+{
+ return i2c_add_driver(&driver);
}
static __exit void nxt6000_exit(void)
{
-
- dprintk("nxt6000: cleanup\n");
-
- dvb_unregister_i2c_device(nxt6000_attach);
-
+ if (i2c_del_driver(&driver))
+ printk("nxt6000: driver deregistration failed\n");
}
module_init(nxt6000_init);
diff -uraNwB xx-linux-2.6.8.1/drivers/media/dvb/frontends/sp887x.c linux-2.6.8.1-patched/drivers/media/dvb/frontends/sp887x.c
--- xx-linux-2.6.8.1/drivers/media/dvb/frontends/sp887x.c 2004-08-23 09:34:58.000000000 +0200
+++ linux-2.6.8.1-patched/drivers/media/dvb/frontends/sp887x.c 2004-08-22 23:25:49.000000000 +0200
@@ -5,40 +5,36 @@
/*
This driver needs a copy of the Avermedia firmware. The version tested
is part of the Avermedia DVB-T 1.3.26.3 Application. If the software is
- installed in Windows the file will be in the /Program Files/AVerTV DVB-T/
+ installed in Windoze the file will be in the /Program Files/AVerTV DVB-T/
directory and is called sc_main.mc. Alternatively it can "extracted" from
- the install cab files. Copy this file to '/usr/lib/hotplug/firmware/sc_main.mc'.
+ the install cab files.
+
+ Copy this file to '/usr/lib/hotplug/firmware/dvb-fe-sp887x.fw'.
+
With this version of the file the first 10 bytes are discarded and the
next 0x4000 loaded. This may change in future versions.
*/
+#define SP887X_DEFAULT_FIRMWARE "dvb-fe-sp887x.fw"
-#include <linux/kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/unistd.h>
-#include <linux/fcntl.h>
-#include <linux/errno.h>
-#include <linux/i2c.h>
-#include <linux/syscalls.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
#include "dvb_frontend.h"
-#include "dvb_functions.h"
-#ifndef DVB_SP887X_FIRMWARE_FILE
-#define DVB_SP887X_FIRMWARE_FILE "/usr/lib/hotplug/firmware/sc_main.mc"
-#endif
+#define FRONTEND_NAME "dvbfe_sp887x"
-static char *sp887x_firmware = DVB_SP887X_FIRMWARE_FILE;
+#define dprintk(args...) \
+ do { \
+ if (debug) printk(KERN_DEBUG FRONTEND_NAME ": " args); \
+ } while (0)
-#if 0
-#define dprintk(x...) printk(x)
-#else
-#define dprintk(x...)
-#endif
+static int debug;
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
#if 0
#define LOG(dir,addr,buf,len) \
@@ -53,9 +49,7 @@
#define LOG(dir,addr,buf,len)
#endif
-
-static
-struct dvb_frontend_info sp887x_info = {
+static struct dvb_frontend_info sp887x_info = {
.name = "Microtune MT7202DTF",
.type = FE_OFDM,
.frequency_min = 50500000,
@@ -67,18 +61,19 @@
FE_CAN_RECOVER
};
-static int errno;
+struct sp887x_state {
+ struct i2c_adapter *i2c;
+ struct dvb_adapter *dvb;
+};
-static
-int i2c_writebytes (struct dvb_frontend *fe, u8 addr, u8 *buf, u8 len)
+static int i2c_writebytes (struct i2c_adapter *i2c, u8 addr, u8 *buf, u8 len)
{
- struct dvb_i2c_bus *i2c = fe->i2c;
struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = buf, .len = len };
int err;
LOG("i2c_writebytes", msg.addr, msg.buf, msg.len);
- if ((err = i2c->xfer (i2c, &msg, 1)) != 1) {
+ if ((err = i2c_transfer (i2c, &msg, 1)) != 1) {
printk ("%s: i2c write error (addr %02x, err == %i)\n",
__FUNCTION__, addr, err);
return -EREMOTEIO;
@@ -87,19 +82,15 @@
return 0;
}
-
-
-static
-int sp887x_writereg (struct dvb_frontend *fe, u16 reg, u16 data)
+static int sp887x_writereg (struct i2c_adapter *i2c, u16 reg, u16 data)
{
- struct dvb_i2c_bus *i2c = fe->i2c;
u8 b0 [] = { reg >> 8 , reg & 0xff, data >> 8, data & 0xff };
struct i2c_msg msg = { .addr = 0x70, .flags = 0, .buf = b0, .len = 4 };
int ret;
LOG("sp887x_writereg", msg.addr, msg.buf, msg.len);
- if ((ret = i2c->xfer(i2c, &msg, 1)) != 1) {
+ if ((ret = i2c_transfer(i2c, &msg, 1)) != 1) {
/**
* in case of soft reset we ignore ACK errors...
*/
@@ -116,11 +107,8 @@
return 0;
}
-
-static
-u16 sp887x_readreg (struct dvb_frontend *fe, u16 reg)
+static u16 sp887x_readreg (struct i2c_adapter *i2c, u16 reg)
{
- struct dvb_i2c_bus *i2c = fe->i2c;
u8 b0 [] = { reg >> 8 , reg & 0xff };
u8 b1 [2];
int ret;
@@ -130,15 +118,13 @@
LOG("sp887x_readreg (w)", msg[0].addr, msg[0].buf, msg[0].len);
LOG("sp887x_readreg (r)", msg[1].addr, msg[1].buf, msg[1].len);
- if ((ret = i2c->xfer(i2c, msg, 2)) != 2)
+ if ((ret = i2c_transfer(i2c, msg, 2)) != 2)
printk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
return (((b1[0] << 8) | b1[1]) & 0xfff);
}
-
-static
-void sp887x_microcontroller_stop (struct dvb_frontend *fe)
+static void sp887x_microcontroller_stop (struct i2c_adapter *fe)
{
dprintk("%s\n", __FUNCTION__);
sp887x_writereg(fe, 0xf08, 0x000);
@@ -148,9 +134,7 @@
sp887x_writereg(fe, 0xf00, 0x000);
}
-
-static
-void sp887x_microcontroller_start (struct dvb_frontend *fe)
+static void sp887x_microcontroller_start (struct i2c_adapter *fe)
{
dprintk("%s\n", __FUNCTION__);
sp887x_writereg(fe, 0xf08, 0x000);
@@ -160,9 +144,7 @@
sp887x_writereg(fe, 0xf00, 0x001);
}
-
-static
-void sp887x_setup_agc (struct dvb_frontend *fe)
+static void sp887x_setup_agc (struct i2c_adapter *fe)
{
/* setup AGC parameters */
dprintk("%s\n", __FUNCTION__);
@@ -182,72 +164,31 @@
sp887x_writereg(fe, 0x303, 0x000);
}
-
#define BLOCKSIZE 30
-
+#define FW_SIZE 0x4000
/**
* load firmware and setup MPEG interface...
*/
-static
-int sp887x_initial_setup (struct dvb_frontend *fe)
+static int sp887x_initial_setup (struct i2c_adapter *fe, const struct firmware *fw)
{
u8 buf [BLOCKSIZE+2];
- unsigned char *firmware = NULL;
int i;
- int fd;
- int filesize;
- int fw_size;
- mm_segment_t fs;
+ int fw_size = fw->size;
+ unsigned char *mem = fw->data;
dprintk("%s\n", __FUNCTION__);
+ /* ignore the first 10 bytes, then we expect 0x4000 bytes of firmware */
+ if (fw_size < FW_SIZE+10)
+ return -ENODEV;
+
+ mem = fw->data + 10;
+
/* soft reset */
sp887x_writereg(fe, 0xf1a, 0x000);
sp887x_microcontroller_stop (fe);
- fs = get_fs();
-
- // Load the firmware
- set_fs(get_ds());
- fd = sys_open(sp887x_firmware, 0, 0);
- if (fd < 0) {
- printk(KERN_WARNING "%s: Unable to open firmware %s\n", __FUNCTION__,
- sp887x_firmware);
- return -EIO;
- }
- filesize = sys_lseek(fd, 0L, 2);
- if (filesize <= 0) {
- printk(KERN_WARNING "%s: Firmware %s is empty\n", __FUNCTION__,
- sp887x_firmware);
- sys_close(fd);
- return -EIO;
- }
-
- fw_size = 0x4000;
-
- // allocate buffer for it
- firmware = vmalloc(fw_size);
- if (firmware == NULL) {
- printk(KERN_WARNING "%s: Out of memory loading firmware\n",
- __FUNCTION__);
- sys_close(fd);
- return -EIO;
- }
-
- // read it!
- // read the first 16384 bytes from the file
- // ignore the first 10 bytes
- sys_lseek(fd, 10, 0);
- if (sys_read(fd, firmware, fw_size) != fw_size) {
- printk(KERN_WARNING "%s: Failed to read firmware\n", __FUNCTION__);
- vfree(firmware);
- sys_close(fd);
- return -EIO;
- }
- sys_close(fd);
- set_fs(fs);
-
printk ("%s: firmware upload... ", __FUNCTION__);
/* setup write pointer to -1 (end of memory) */
@@ -257,7 +198,7 @@
/* dummy write (wrap around to start of memory) */
sp887x_writereg(fe, 0x8f0a, 0x0000);
- for (i=0; i<fw_size; i+=BLOCKSIZE) {
+ for (i = 0; i < FW_SIZE; i += BLOCKSIZE) {
int c = BLOCKSIZE;
int err;
@@ -270,18 +211,15 @@
buf[0] = 0xcf;
buf[1] = 0x0a;
- memcpy(&buf[2], firmware + i, c);
+ memcpy(&buf[2], mem + i, c);
if ((err = i2c_writebytes (fe, 0x70, buf, c+2)) < 0) {
printk ("failed.\n");
printk ("%s: i2c error (err == %i)\n", __FUNCTION__, err);
- vfree(firmware);
return err;
}
}
- vfree(firmware);
-
/* don't write RS bytes between packets */
sp887x_writereg(fe, 0xc13, 0x001);
@@ -312,8 +249,7 @@
* returns the actual tuned center frequency which can be used
* to initialise the AFC registers
*/
-static
-int tsa5060_setup_pll (struct dvb_frontend *fe, int freq)
+static int tsa5060_setup_pll (struct i2c_adapter *fe, int freq)
{
u8 cfg, cpump, band_select;
u8 buf [4];
@@ -340,10 +276,7 @@
return (div * 166666 - 36000000);
}
-
-
-static
-int configure_reg0xc05 (struct dvb_frontend_parameters *p, u16 *reg0xc05)
+static int configure_reg0xc05 (struct dvb_frontend_parameters *p, u16 *reg0xc05)
{
int known_parameters = 1;
@@ -419,8 +351,7 @@
* estimates division of two 24bit numbers,
* derived from the ves1820/stv0299 driver code
*/
-static
-void divide (int n, int d, int *quotient_i, int *quotient_f)
+static void divide (int n, int d, int *quotient_i, int *quotient_f)
{
unsigned int q, r;
@@ -438,9 +369,7 @@
}
}
-
-static
-void sp887x_correct_offsets (struct dvb_frontend *fe,
+static void sp887x_correct_offsets (struct i2c_adapter *fe,
struct dvb_frontend_parameters *p,
int actual_freq)
{
@@ -471,9 +400,7 @@
sp887x_writereg(fe, 0x30a, frequency_shift & 0xfff);
}
-
-static
-int sp887x_setup_frontend_parameters (struct dvb_frontend *fe,
+static int sp887x_setup_frontend_parameters (struct i2c_adapter *fe,
struct dvb_frontend_parameters *p)
{
int actual_freq, err;
@@ -531,10 +458,11 @@
return 0;
}
-
-static
-int sp887x_ioctl (struct dvb_frontend *fe, unsigned int cmd, void *arg)
+static int sp887x_ioctl(struct dvb_frontend *f, unsigned int cmd, void *arg)
{
+ struct sp887x_state *state = (struct sp887x_state *) f->data;
+ struct i2c_adapter *fe = state->i2c;
+
switch (cmd) {
case FE_GET_INFO:
memcpy (arg, &sp887x_info, sizeof(struct dvb_frontend_info));
@@ -624,10 +552,6 @@
break;
case FE_INIT:
- if (fe->data == NULL) { /* first time initialisation... */
- fe->data = (void*) ~0;
- sp887x_initial_setup (fe);
- }
/* enable TS output and interface pins */
sp887x_writereg(fe, 0xc18, 0x00d);
break;
@@ -635,9 +559,9 @@
case FE_GET_TUNE_SETTINGS:
{
struct dvb_frontend_tune_settings* fesettings = (struct dvb_frontend_tune_settings*) arg;
- fesettings->min_delay_ms = 50;
- fesettings->step_size = 0;
- fesettings->max_drift = 0;
+ fesettings->min_delay_ms = 350;
+ fesettings->step_size = 166666*2;
+ fesettings->max_drift = (166666*2)+1;
return 0;
}
@@ -648,45 +572,135 @@
return 0;
}
+static struct i2c_client client_template;
-
-static
-int sp887x_attach (struct dvb_i2c_bus *i2c, void **data)
+static int attach_adapter(struct i2c_adapter *adapter)
{
+ struct i2c_client *client;
+ struct sp887x_state *state;
+ const struct firmware *fw;
+ int ret;
+
struct i2c_msg msg = {.addr = 0x70, .flags = 0, .buf = NULL, .len = 0 };
dprintk ("%s\n", __FUNCTION__);
- if (i2c->xfer (i2c, &msg, 1) != 1)
+ if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+ return -ENOMEM;
+ }
+
+ if (NULL == (state = kmalloc(sizeof(struct sp887x_state), GFP_KERNEL))) {
+ kfree(client);
+ return -ENOMEM;
+ }
+ state->i2c = adapter;
+
+ if (i2c_transfer (adapter, &msg, 1) != 1) {
+ kfree(state);
+ kfree(client);
return -ENODEV;
+ }
- return dvb_register_frontend (sp887x_ioctl, i2c, NULL, &sp887x_info);
+ memcpy(client, &client_template, sizeof(struct i2c_client));
+ client->adapter = adapter;
+ i2c_set_clientdata(client, (void*)state);
+
+ ret = i2c_attach_client(client);
+ if (ret) {
+ kfree(client);
+ kfree(state);
+ return ret;
}
+ /* request the firmware, this will block until someone uploads it */
+ printk("sp887x: waiting for firmware upload...\n");
+ ret = request_firmware(&fw, SP887X_DEFAULT_FIRMWARE, &client->dev);
+ if (ret) {
+ printk("sp887x: no firmware upload (timeout or file not found?)\n");
+ goto out;
+ }
+
+ ret = sp887x_initial_setup(adapter, fw);
+ if (ret) {
+ printk("sp887x: writing firmware to device failed\n");
+ goto out;
+ }
+
+ ret = dvb_register_frontend(sp887x_ioctl, state->dvb, state,
+ &sp887x_info, THIS_MODULE);
+ if (ret) {
+ printk("sp887x: registering frontend to dvb-core failed.\n");
+ goto out;
+ }
-static
-void sp887x_detach (struct dvb_i2c_bus *i2c, void *data)
+ return 0;
+out:
+ release_firmware(fw);
+ i2c_detach_client(client);
+ kfree(client);
+ kfree(state);
+ return ret;
+}
+
+static int detach_client(struct i2c_client *client)
{
+ struct sp887x_state *state = (struct sp887x_state*)i2c_get_clientdata(client);
+
dprintk ("%s\n", __FUNCTION__);
- dvb_unregister_frontend (sp887x_ioctl, i2c);
-}
+ dvb_unregister_frontend_new (sp887x_ioctl, state->dvb);
+ i2c_detach_client(client);
+ BUG_ON(state->dvb);
+ kfree(client);
+ kfree(state);
+ return 0;
+}
-static
-int __init init_sp887x (void)
+static int command (struct i2c_client *client, unsigned int cmd, void *arg)
{
+ struct sp887x_state *state = (struct sp887x_state*)i2c_get_clientdata(client);
+
dprintk ("%s\n", __FUNCTION__);
- return dvb_register_i2c_device (NULL, sp887x_attach, sp887x_detach);
+
+ switch (cmd) {
+ case FE_REGISTER:
+ state->dvb = (struct dvb_adapter*)arg;
+ break;
+ case FE_UNREGISTER:
+ state->dvb = NULL;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
}
+static struct i2c_driver driver = {
+ .owner = THIS_MODULE,
+ .name = FRONTEND_NAME,
+ .id = I2C_DRIVERID_DVBFE_SP887X,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = attach_adapter,
+ .detach_client = detach_client,
+ .command = command,
+};
-static
-void __exit exit_sp887x (void)
+static struct i2c_client client_template = {
+ .name = FRONTEND_NAME,
+ .flags = I2C_CLIENT_ALLOW_USE,
+ .driver = &driver,
+};
+
+static int __init init_sp887x(void)
{
- dprintk ("%s\n", __FUNCTION__);
- dvb_unregister_i2c_device (sp887x_attach);
+ return i2c_add_driver(&driver);
}
+static void __exit exit_sp887x(void)
+{
+ if (i2c_del_driver(&driver))
+ printk("sp887x: driver deregistration failed\n");
+}
module_init(init_sp887x);
module_exit(exit_sp887x);