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V4L/DVB (6022): cx88: Move card core creation from cx88-core.c to cx8…
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…8-cards.c

A lot of code in cx88-cards.c was only used by cx88-core.c when the core state
is first allocated and initialized.  Moving that task to cx88-cards makes the
driver simpler and the files more self contained.

- Module parameters tuner, radio, card, and latency move to cx88-cards.c
- cx88_boards is made static
- cx88_subids is made static and const
- cx88_bcount is eliminated
- cx88_idcount is eliminated
- cx88_card_list() is made static
- cx88_card_setup_pre_i2c() is made static
- cx88_card_setup() is made static
- cx88_pci_quirks() is moved from cx88-core to cx88-cards
  The function argument "char *name" is made const too
- get_ressources() is moved from cx88-core to cx88-cards, and renamed to
  cx88_get_resources()
- The code to allocate and initialize the core state struct and the chip is
  moved out of cx88-core.c:cx88_get_core() and into a new function in
  cx88-cards.c, cx88_core_create().  This makes both functions simpler.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Trent Piepho authored and Mauro Carvalho Chehab committed Oct 10, 2007
1 parent 6a59d64 commit bbc8359
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Showing 3 changed files with 172 additions and 171 deletions.
168 changes: 160 additions & 8 deletions drivers/media/video/cx88/cx88-cards.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,10 +27,26 @@

#include "cx88.h"

static unsigned int tuner[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
static unsigned int radio[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
static unsigned int card[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };

module_param_array(tuner, int, NULL, 0444);
module_param_array(radio, int, NULL, 0444);
module_param_array(card, int, NULL, 0444);

MODULE_PARM_DESC(tuner,"tuner type");
MODULE_PARM_DESC(radio,"radio tuner type");
MODULE_PARM_DESC(card,"card type");

static unsigned int latency = UNSET;
module_param(latency,int,0444);
MODULE_PARM_DESC(latency,"pci latency timer");

/* ------------------------------------------------------------------ */
/* board config info */

const struct cx88_board cx88_boards[] = {
static const struct cx88_board cx88_boards[] = {
[CX88_BOARD_UNKNOWN] = {
.name = "UNKNOWN/GENERIC",
.tuner_type = UNSET,
Expand Down Expand Up @@ -1355,12 +1371,11 @@ const struct cx88_board cx88_boards[] = {
}},
},
};
const unsigned int cx88_bcount = ARRAY_SIZE(cx88_boards);

/* ------------------------------------------------------------------ */
/* PCI subsystem IDs */

struct cx88_subid cx88_subids[] = {
static const struct cx88_subid cx88_subids[] = {
{
.subvendor = 0x0070,
.subdevice = 0x3400,
Expand Down Expand Up @@ -1666,7 +1681,6 @@ struct cx88_subid cx88_subids[] = {
.card = CX88_BOARD_ADSTECH_PTV_390,
},
};
const unsigned int cx88_idcount = ARRAY_SIZE(cx88_subids);

/* ----------------------------------------------------------------------- */
/* some leadtek specific stuff */
Expand Down Expand Up @@ -1833,7 +1847,7 @@ static void dvico_fusionhdtv_hybrid_init(struct cx88_core *core)

/* ----------------------------------------------------------------------- */

void cx88_card_list(struct cx88_core *core, struct pci_dev *pci)
static void cx88_card_list(struct cx88_core *core, struct pci_dev *pci)
{
int i;

Expand All @@ -1854,12 +1868,12 @@ void cx88_card_list(struct cx88_core *core, struct pci_dev *pci)
}
printk("%s: Here is a list of valid choices for the card=<n> insmod option:\n",
core->name);
for (i = 0; i < cx88_bcount; i++)
for (i = 0; i < ARRAY_SIZE(cx88_boards); i++)
printk("%s: card=%d -> %s\n",
core->name, i, cx88_boards[i].name);
}

void cx88_card_setup_pre_i2c(struct cx88_core *core)
static void cx88_card_setup_pre_i2c(struct cx88_core *core)
{
switch (core->boardnr) {
case CX88_BOARD_HAUPPAUGE_HVR1300:
Expand All @@ -1875,7 +1889,7 @@ void cx88_card_setup_pre_i2c(struct cx88_core *core)
}
}

void cx88_card_setup(struct cx88_core *core)
static void cx88_card_setup(struct cx88_core *core)
{
static u8 eeprom[256];

Expand Down Expand Up @@ -1970,6 +1984,144 @@ void cx88_card_setup(struct cx88_core *core)

/* ------------------------------------------------------------------ */

static int cx88_pci_quirks(const char *name, struct pci_dev *pci)
{
unsigned int lat = UNSET;
u8 ctrl = 0;
u8 value;

/* check pci quirks */
if (pci_pci_problems & PCIPCI_TRITON) {
printk(KERN_INFO "%s: quirk: PCIPCI_TRITON -- set TBFX\n",
name);
ctrl |= CX88X_EN_TBFX;
}
if (pci_pci_problems & PCIPCI_NATOMA) {
printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA -- set TBFX\n",
name);
ctrl |= CX88X_EN_TBFX;
}
if (pci_pci_problems & PCIPCI_VIAETBF) {
printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF -- set TBFX\n",
name);
ctrl |= CX88X_EN_TBFX;
}
if (pci_pci_problems & PCIPCI_VSFX) {
printk(KERN_INFO "%s: quirk: PCIPCI_VSFX -- set VSFX\n",
name);
ctrl |= CX88X_EN_VSFX;
}
#ifdef PCIPCI_ALIMAGIK
if (pci_pci_problems & PCIPCI_ALIMAGIK) {
printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
name);
lat = 0x0A;
}
#endif

/* check insmod options */
if (UNSET != latency)
lat = latency;

/* apply stuff */
if (ctrl) {
pci_read_config_byte(pci, CX88X_DEVCTRL, &value);
value |= ctrl;
pci_write_config_byte(pci, CX88X_DEVCTRL, value);
}
if (UNSET != lat) {
printk(KERN_INFO "%s: setting pci latency timer to %d\n",
name, latency);
pci_write_config_byte(pci, PCI_LATENCY_TIMER, latency);
}
return 0;
}

int cx88_get_resources(const struct cx88_core *core, struct pci_dev *pci)
{
if (request_mem_region(pci_resource_start(pci,0),
pci_resource_len(pci,0),
core->name))
return 0;
printk(KERN_ERR
"%s/%d: Can't get MMIO memory @ 0x%llx, subsystem: %04x:%04x\n",
core->name, PCI_FUNC(pci->devfn),
(unsigned long long)pci_resource_start(pci, 0),
pci->subsystem_vendor, pci->subsystem_device);
return -EBUSY;
}

/* Allocate and initialize the cx88 core struct. One should hold the
* devlist mutex before calling this. */
struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
{
struct cx88_core *core;
int i;

core = kzalloc(sizeof(*core), GFP_KERNEL);

atomic_inc(&core->refcount);
core->pci_bus = pci->bus->number;
core->pci_slot = PCI_SLOT(pci->devfn);
core->pci_irqmask = 0x00fc00;
mutex_init(&core->lock);

core->nr = nr;
sprintf(core->name, "cx88[%d]", core->nr);
if (0 != cx88_get_resources(core, pci)) {
kfree(core);
return NULL;
}

/* PCI stuff */
cx88_pci_quirks(core->name, pci);
core->lmmio = ioremap(pci_resource_start(pci, 0),
pci_resource_len(pci, 0));
core->bmmio = (u8 __iomem *)core->lmmio;

/* board config */
core->boardnr = UNSET;
if (card[core->nr] < ARRAY_SIZE(cx88_boards))
core->boardnr = card[core->nr];
for (i = 0; UNSET == core->boardnr && i < ARRAY_SIZE(cx88_subids); i++)
if (pci->subsystem_vendor == cx88_subids[i].subvendor &&
pci->subsystem_device == cx88_subids[i].subdevice)
core->boardnr = cx88_subids[i].card;
if (UNSET == core->boardnr) {
core->boardnr = CX88_BOARD_UNKNOWN;
cx88_card_list(core, pci);
}

memcpy(&core->board, &cx88_boards[core->boardnr], sizeof(core->board));

printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
core->name,pci->subsystem_vendor,
pci->subsystem_device, core->board.name,
core->boardnr, card[core->nr] == core->boardnr ?
"insmod option" : "autodetected");

if (tuner[core->nr] != UNSET)
core->board.tuner_type = tuner[core->nr];
if (radio[core->nr] != UNSET)
core->board.radio_type = radio[core->nr];

printk(KERN_INFO "TV tuner %d at 0x%02x, Radio tuner %d at 0x%02x\n",
core->board.tuner_type, core->board.tuner_addr<<1,
core->board.radio_type, core->board.radio_addr<<1);

/* init hardware */
cx88_reset(core);
cx88_card_setup_pre_i2c(core);
cx88_i2c_init(core, pci);
cx88_call_i2c_clients (core, TUNER_SET_STANDBY, NULL);
cx88_card_setup(core);
cx88_ir_init(core, pci);

return core;
}

/* ------------------------------------------------------------------ */

/*
* Local variables:
* c-basic-offset: 8
Expand Down
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