/*
* budget-ci.c: driver for the SAA7146 based Budget DVB cards
*
* Compiled from various sources by Michael Hunold <michael@mihu.de>
*
* msp430 IR support contributed by Jack Thomasson <jkt@Helius.COM>
* partially based on the Siemens DVB driver by Ralph+Marcus Metzler
*
* CI interface support (c) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
*
* the project's page is at http://www.linuxtv.org/dvb/
*/
#include "budget.h"
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include "dvb_functions.h"
#include "dvb_ca_en50221.h"
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
#include "input_fake.h"
#endif
#define DEBIADDR_IR 0x1234
#define DEBIADDR_CICONTROL 0x0000
#define DEBIADDR_CIVERSION 0x4000
#define DEBIADDR_IO 0x1000
#define DEBIADDR_ATTR 0x3000
#define CICONTROL_RESET 0x01
#define CICONTROL_ENABLETS 0x02
#define CICONTROL_CAMDETECT 0x08
#define DEBICICTL 0x00420000
#define DEBICICAM 0x02420000
#define SLOTSTATUS_NONE 1
#define SLOTSTATUS_PRESENT 2
#define SLOTSTATUS_RESET 4
#define SLOTSTATUS_READY 8
#define SLOTSTATUS_OCCUPIED (SLOTSTATUS_PRESENT|SLOTSTATUS_RESET|SLOTSTATUS_READY)
struct budget_ci {
struct budget budget;
struct input_dev input_dev;
struct tasklet_struct msp430_irq_tasklet;
struct tasklet_struct ciintf_irq_tasklet;
spinlock_t debilock;
int slot_status;
struct dvb_ca_en50221 ca;
char ir_dev_name[50];
};
static u32 budget_debiread (struct budget_ci* budget_ci, u32 config, int addr, int count)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
u32 result = 0;
if (count > 4 || count <= 0)
return 0;
spin_lock(&budget_ci->debilock);
if (saa7146_wait_for_debi_done(saa) < 0) {
spin_unlock(&budget_ci->debilock);
return 0;
}
saa7146_write (saa, DEBI_COMMAND,
(count << 17) | 0x10000 | (addr & 0xffff));
saa7146_write(saa, DEBI_CONFIG, config);
saa7146_write(saa, DEBI_PAGE, 0);
saa7146_write(saa, MC2, (2 << 16) | 2);
saa7146_wait_for_debi_done(saa);
result = saa7146_read(saa, 0x88);
result &= (0xffffffffUL >> ((4 - count) * 8));
spin_unlock(&budget_ci->debilock);
return result;
}
static u8 budget_debiwrite (struct budget_ci* budget_ci, u32 config, int addr, int count, u32 value)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
if (count > 4 || count <= 0)
return 0;
spin_lock(&budget_ci->debilock);
if (saa7146_wait_for_debi_done(saa) < 0) {
spin_unlock(&budget_ci->debilock);
return 0;
}
saa7146_write (saa, DEBI_COMMAND,
(count << 17) | 0x00000 | (addr & 0xffff));
saa7146_write(saa, DEBI_CONFIG, config);
saa7146_write(saa, DEBI_PAGE, 0);
saa7146_write(saa, DEBI_AD, value);
saa7146_write(saa, MC2, (2 << 16) | 2);
saa7146_wait_for_debi_done(saa);
spin_unlock(&budget_ci->debilock);
return 0;
}
/* from reading the following remotes:
Zenith Universal 7 / TV Mode 807 / VCR Mode 837
Hauppauge (from NOVA-CI-s box product)
i've taken a "middle of the road" approach and note the differences
*/
static u16 key_map[64] = {
/* 0x0X */
KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8,
KEY_9,
KEY_ENTER,
KEY_RED,
KEY_POWER, /* RADIO on Hauppauge */
KEY_MUTE,
0,
KEY_A, /* TV on Hauppauge */
/* 0x1X */
KEY_VOLUMEUP, KEY_VOLUMEDOWN,
0, 0,
KEY_B,
0, 0, 0, 0, 0, 0, 0,
KEY_UP, KEY_DOWN,
KEY_OPTION, /* RESERVED on Hauppauge */
KEY_BREAK,
/* 0x2X */
KEY_CHANNELUP, KEY_CHANNELDOWN,
KEY_PREVIOUS, /* Prev. Ch on Zenith, SOURCE on Hauppauge */
0, KEY_RESTART, KEY_OK,
KEY_CYCLEWINDOWS, /* MINIMIZE on Hauppauge */
0,
KEY_ENTER, /* VCR mode on Zenith */
KEY_PAUSE,
0,
KEY_RIGHT, KEY_LEFT,
0,
KEY_MENU, /* FULL SCREEN on Hauppauge */
0,
/* 0x3X */
KEY_SLOW,
KEY_PREVIOUS, /* VCR mode on Zenith */
KEY_REWIND,
0,
KEY_FASTFORWARD,
KEY_PLAY, KEY_STOP,
KEY_RECORD,
KEY_TUNER, /* TV/VCR on Zenith */
0,
KEY_C,
0,
KEY_EXIT,
KEY_POWER2,
KEY_TUNER, /* VCR mode on Zenith */
0,
};
static void msp430_ir_debounce (unsigned long data)
{
struct input_dev *dev = (struct input_dev *) data;
if (dev->rep[0] == 0 || dev->rep[0] == ~0) {
input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);
return;
}
dev->rep[0] = 0;
dev->timer.expires = jiffies + HZ * 350 / 1000;
add_timer(&dev->timer);
input_event(dev, EV_KEY, key_map[dev->repeat_key], 2); /* REPEAT */
}
static void msp430_ir_interrupt (unsigned long data)
{
struct budget_ci *budget_ci = (struct budget_ci*) data;
struct input_dev *dev = &budget_ci->input_dev;
unsigned int code = budget_debiread(budget_ci, DEBINOSWAP, DEBIADDR_IR, 2) >> 8;
if (code & 0x40) {
code &= 0x3f;
if (timer_pending(&dev->timer)) {
if (code == dev->repeat_key) {
++dev->rep[0];
return;
}
del_timer(&dev->timer);
input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);
}
if (!key_map[code]) {
printk ("DVB (%s): no key for %02x!\n",
__FUNCTION__, code);
return;
}
/* initialize debounce and repeat */
dev->repeat_key = code;
/* Zenith remote _always_ sends 2 sequences */
dev->rep[0] = ~0;
/* 350 milliseconds */
dev->timer.expires = jiffies + HZ * 350 / 1000;
/* MAKE */
input_event(dev, EV_KEY, key_map[code], !0);
add_timer(&dev->timer);
}
}
static int msp430_ir_init (struct budget_ci *budget_ci)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
int i;
memset(&budget_ci->input_dev, 0, sizeof(struct input_dev));
sprintf (budget_ci->ir_dev_name, "Budget-CI dvb ir receiver %s", saa->name);
budget_ci->input_dev.name = budget_ci->ir_dev_name;
set_bit(EV_KEY, budget_ci->input_dev.evbit);
for (i=0; i<sizeof(key_map)/sizeof(*key_map); i++)
if (key_map[i])
set_bit(key_map[i], budget_ci->input_dev.keybit);
input_register_device(&budget_ci->input_dev);
budget_ci->input_dev.timer.function = msp430_ir_debounce;
saa7146_write(saa, IER, saa7146_read(saa, IER) | MASK_06);
saa7146_setgpio(saa, 3, SAA7146_GPIO_IRQHI);
return 0;
}
static void msp430_ir_deinit (struct budget_ci *budget_ci)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
struct input_dev *dev = &budget_ci->input_dev;
saa7146_write(saa, IER, saa7146_read(saa, IER) & ~MASK_06);
saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);
if (del_timer(&dev->timer))
input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);
input_unregister_device(dev);
}
static int ciintf_read_attribute_mem(struct dvb_ca_en50221* ca, int slot, int address) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
if (slot != 0) return -EINVAL;
return budget_debiread(budget_ci, DEBICICAM, DEBIADDR_ATTR | (address & 0xfff), 1);
}
static int ciintf_write_attribute_mem(struct dvb_ca_en50221* ca, int slot, int address, u8 value) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
if (slot != 0) return -EINVAL;
return budget_debiwrite(budget_ci, DEBICICAM, DEBIADDR_ATTR | (address & 0xfff), 1, value);
}
static int ciintf_read_cam_control(struct dvb_ca_en50221* ca, int slot, u8 address) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
if (slot != 0) return -EINVAL;
return budget_debiread(budget_ci, DEBICICAM, DEBIADDR_IO | (address & 3), 1);
}
static int ciintf_write_cam_control(struct dvb_ca_en50221* ca, int slot, u8 address, u8 value) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
if (slot != 0) return -EINVAL;
return budget_debiwrite(budget_ci, DEBICICAM, DEBIADDR_IO | (address & 3), 1, value);
}
static int ciintf_slot_reset(struct dvb_ca_en50221* ca, int slot) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
struct saa7146_dev *saa = budget_ci->budget.dev;
if (slot != 0) return -EINVAL;
// trigger on RISING edge during reset so we know when READY is re-asserted
saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);
budget_ci->slot_status = SLOTSTATUS_RESET;
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, 0);
dvb_delay(1);
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, CICONTROL_RESET);
saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);
ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
return 0;
}
static int ciintf_slot_shutdown(struct dvb_ca_en50221* ca, int slot) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
struct saa7146_dev *saa = budget_ci->budget.dev;
if (slot != 0) return -EINVAL;
saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);
ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
return 0;
}
static int ciintf_slot_ts_enable(struct dvb_ca_en50221* ca, int slot) {
struct budget_ci* budget_ci = (struct budget_ci*) ca->data;
struct saa7146_dev *saa = budget_ci->budget.dev;
int tmp;
if (slot != 0) return -EINVAL;
saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTLO);
tmp = budget_debiread(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1);
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, tmp | CICONTROL_ENABLETS);
ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTA);
return 0;
}
static void ciintf_interrupt (unsigned long data)
{
struct budget_ci *budget_ci = (struct budget_ci*) data;
struct saa7146_dev *saa = budget_ci->budget.dev;
unsigned int flags;
// ensure we don't get spurious IRQs during initialisation
if (!budget_ci->budget.ci_present) return;
flags = budget_debiread(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1);
// always set the GPIO mode back to "normal", in case the card is
// yanked at an inopportune moment
saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);
if (flags & CICONTROL_CAMDETECT) {
if (budget_ci->slot_status & SLOTSTATUS_NONE) {
// CAM insertion IRQ
budget_ci->slot_status = SLOTSTATUS_PRESENT;
dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, DVB_CA_EN50221_CAMCHANGE_INSERTED);
} else if (budget_ci->slot_status & SLOTSTATUS_RESET) {
// CAM ready (reset completed)
budget_ci->slot_status = SLOTSTATUS_READY;
dvb_ca_en50221_camready_irq(&budget_ci->ca, 0);
} else if (budget_ci->slot_status & SLOTSTATUS_READY) {
// FR/DA IRQ
dvb_ca_en50221_frda_irq(&budget_ci->ca, 0);
}
} else {
if (budget_ci->slot_status & SLOTSTATUS_OCCUPIED) {
budget_ci->slot_status = SLOTSTATUS_NONE;
dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, DVB_CA_EN50221_CAMCHANGE_REMOVED);
}
}
}
static int ciintf_init(struct budget_ci* budget_ci)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
int flags;
int result;
memset(&budget_ci->ca, 0, sizeof(struct dvb_ca_en50221));
// enable DEBI pins
saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16) | 0x800);
// test if it is there
if ((budget_debiread(budget_ci, DEBICICTL, DEBIADDR_CIVERSION, 1) & 0xa0) != 0xa0) {
result = -ENODEV;
goto error;
}
// determine whether a CAM is present or not
flags = budget_debiread(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1);
budget_ci->slot_status = SLOTSTATUS_NONE;
if (flags & CICONTROL_CAMDETECT) budget_ci->slot_status = SLOTSTATUS_PRESENT;
// register CI interface
budget_ci->ca.read_attribute_mem = ciintf_read_attribute_mem;
budget_ci->ca.write_attribute_mem = ciintf_write_attribute_mem;
budget_ci->ca.read_cam_control = ciintf_read_cam_control;
budget_ci->ca.write_cam_control = ciintf_write_cam_control;
budget_ci->ca.slot_reset = ciintf_slot_reset;
budget_ci->ca.slot_shutdown = ciintf_slot_shutdown;
budget_ci->ca.slot_ts_enable = ciintf_slot_ts_enable;
budget_ci->ca.data = budget_ci;
if ((result = dvb_ca_en50221_init(budget_ci->budget.dvb_adapter,
&budget_ci->ca,
DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE |
DVB_CA_EN50221_FLAG_IRQ_FR |
DVB_CA_EN50221_FLAG_IRQ_DA,
1)) != 0) {
printk("budget_ci: CI interface detected, but initialisation failed.\n");
goto error;
}
// Setup CI slot IRQ
tasklet_init (&budget_ci->ciintf_irq_tasklet, ciintf_interrupt, (unsigned long) budget_ci);
saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);
saa7146_write(saa, IER, saa7146_read(saa, IER) | MASK_03);
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, CICONTROL_RESET);
// success!
printk("budget_ci: CI interface initialised\n");
budget_ci->budget.ci_present = 1;
// forge a fake CI IRQ so the CAM state is setup correctly
flags = DVB_CA_EN50221_CAMCHANGE_REMOVED;
if (budget_ci->slot_status != SLOTSTATUS_NONE) flags = DVB_CA_EN50221_CAMCHANGE_INSERTED;
dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, flags);
return 0;
error:
saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16));
return result;
}
static void ciintf_deinit(struct budget_ci* budget_ci)
{
struct saa7146_dev *saa = budget_ci->budget.dev;
// disable CI interrupts
saa7146_write(saa, IER, saa7146_read(saa, IER) & ~MASK_03);
saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT);
tasklet_kill(&budget_ci->ciintf_irq_tasklet);
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, 0);
dvb_delay(1);
budget_debiwrite(budget_ci, DEBICICTL, DEBIADDR_CICONTROL, 1, CICONTROL_RESET);
// disable TS data stream to CI interface
saa7146_setgpio(saa, 1, SAA7146_GPIO_INPUT);
// release the CA device
dvb_ca_en50221_release(&budget_ci->ca);
// disable DEBI pins
saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16));
}
static void budget_ci_irq (struct saa7146_dev *dev, u32 *isr)
{
struct budget_ci *budget_ci = (struct budget_ci*) dev->ext_priv;
DEB_EE(("dev: %p, budget_ci: %p\n", dev, budget_ci));
if (*isr & MASK_06)
tasklet_schedule (&budget_ci->msp430_irq_tasklet);
if (*isr & MASK_10)
ttpci_budget_irq10_handler (dev, isr);
if ((*isr & MASK_03) && (budget_ci->budget.ci_present))
tasklet_schedule (&budget_ci->ciintf_irq_tasklet);
}
static int budget_ci_attach (struct saa7146_dev* dev,
struct saa7146_pci_extension_data *info)
{
struct budget_ci *budget_ci;
int err;
if (!(budget_ci = kmalloc (sizeof(struct budget_ci), GFP_KERNEL)))
return -ENOMEM;
DEB_EE(("budget_ci: %p\n", budget_ci));
spin_lock_init(&budget_ci->debilock);
budget_ci->budget.ci_present = 0;
if ((err = ttpci_budget_init (&budget_ci->budget, dev, info))) {
kfree (budget_ci);
return err;
}
dev->ext_priv = budget_ci;
tasklet_init (&budget_ci->msp430_irq_tasklet, msp430_ir_interrupt,
(unsigned long) budget_ci);
msp430_ir_init (budget_ci);
// UNCOMMENT TO TEST CI INTERFACE
// ciintf_init(budget_ci);
return 0;
}
static int budget_ci_detach (struct saa7146_dev* dev)
{
struct budget_ci *budget_ci = (struct budget_ci*) dev->ext_priv;
struct saa7146_dev *saa = budget_ci->budget.dev;
int err;
if (budget_ci->budget.ci_present) ciintf_deinit(budget_ci);
err = ttpci_budget_deinit (&budget_ci->budget);
tasklet_kill (&budget_ci->msp430_irq_tasklet);
msp430_ir_deinit (budget_ci);
// disable frontend and CI interface
saa7146_setgpio(saa, 2, SAA7146_GPIO_INPUT);
kfree (budget_ci);
return err;
}
static struct saa7146_extension budget_extension;
MAKE_BUDGET_INFO(ttbci, "TT-Budget/WinTV-NOVA-CI PCI", BUDGET_TT_HW_DISEQC);
MAKE_BUDGET_INFO(ttbt2, "TT-Budget/WinTV-NOVA-T PCI", BUDGET_TT);
static struct pci_device_id pci_tbl[] = {
MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100c),
MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100f),
MAKE_EXTENSION_PCI(ttbt2, 0x13c2, 0x1011),
{
.vendor = 0,
}
};
MODULE_DEVICE_TABLE(pci, pci_tbl);
static struct saa7146_extension budget_extension = {
.name = "budget_ci dvb\0",
.flags = 0,
.module = THIS_MODULE,
.pci_tbl = &pci_tbl[0],
.attach = budget_ci_attach,
.detach = budget_ci_detach,
.irq_mask = MASK_03 | MASK_06 | MASK_10,
.irq_func = budget_ci_irq,
};
static int __init budget_ci_init(void)
{
return saa7146_register_extension(&budget_extension);
}
static void __exit budget_ci_exit(void)
{
DEB_EE((".\n"));
saa7146_unregister_extension(&budget_extension);
}
module_init(budget_ci_init);
module_exit(budget_ci_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michael Hunold, Jack Thomasson, Andrew de Quincey, others");
MODULE_DESCRIPTION("driver for the SAA7146 based so-called "
"budget PCI DVB cards w/ CI-module produced by "
"Siemens, Technotrend, Hauppauge");
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