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path: root/drivers/media/video/ivtv/ivtv-i2c.c
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Diffstat (limited to 'drivers/media/video/ivtv/ivtv-i2c.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-i2c.c119
1 files changed, 89 insertions, 30 deletions
diff --git a/drivers/media/video/ivtv/ivtv-i2c.c b/drivers/media/video/ivtv/ivtv-i2c.c
index 36e54f78aa2a..fa5ab1eb1800 100644
--- a/drivers/media/video/ivtv/ivtv-i2c.c
+++ b/drivers/media/video/ivtv/ivtv-i2c.c
@@ -80,6 +80,7 @@
#endif /* I2C_ADAP_CLASS_TV_ANALOG */
#define IVTV_CS53L32A_I2C_ADDR 0x11
+#define IVTV_M52790_I2C_ADDR 0x48
#define IVTV_CX25840_I2C_ADDR 0x44
#define IVTV_SAA7115_I2C_ADDR 0x21
#define IVTV_SAA7127_I2C_ADDR 0x44
@@ -91,7 +92,8 @@
#define IVTV_TEA5767_I2C_ADDR 0x60
#define IVTV_UPD64031A_I2C_ADDR 0x12
#define IVTV_UPD64083_I2C_ADDR 0x5c
-#define IVTV_TDA985X_I2C_ADDR 0x5b
+#define IVTV_VP27SMPX_I2C_ADDR 0x5b
+#define IVTV_M52790_I2C_ADDR 0x48
/* This array should match the IVTV_HW_ defines */
static const u8 hw_driverids[] = {
@@ -104,18 +106,38 @@ static const u8 hw_driverids[] = {
I2C_DRIVERID_CS53L32A,
I2C_DRIVERID_TVEEPROM,
I2C_DRIVERID_SAA711X,
- I2C_DRIVERID_TVAUDIO,
I2C_DRIVERID_UPD64031A,
I2C_DRIVERID_UPD64083,
I2C_DRIVERID_SAA717X,
I2C_DRIVERID_WM8739,
I2C_DRIVERID_VP27SMPX,
+ I2C_DRIVERID_M52790,
+ 0 /* IVTV_HW_GPIO dummy driver ID */
+};
+
+/* This array should match the IVTV_HW_ defines */
+static const u8 hw_addrs[] = {
+ IVTV_CX25840_I2C_ADDR,
+ IVTV_SAA7115_I2C_ADDR,
+ IVTV_SAA7127_I2C_ADDR,
+ IVTV_MSP3400_I2C_ADDR,
+ 0,
+ IVTV_WM8775_I2C_ADDR,
+ IVTV_CS53L32A_I2C_ADDR,
+ 0,
+ IVTV_SAA7115_I2C_ADDR,
+ IVTV_UPD64031A_I2C_ADDR,
+ IVTV_UPD64083_I2C_ADDR,
+ IVTV_SAA717x_I2C_ADDR,
+ IVTV_WM8739_I2C_ADDR,
+ IVTV_VP27SMPX_I2C_ADDR,
+ IVTV_M52790_I2C_ADDR,
0 /* IVTV_HW_GPIO dummy driver ID */
};
/* This array should match the IVTV_HW_ defines */
static const char * const hw_drivernames[] = {
- "cx2584x",
+ "cx25840",
"saa7115",
"saa7127",
"msp3400",
@@ -123,31 +145,67 @@ static const char * const hw_drivernames[] = {
"wm8775",
"cs53l32a",
"tveeprom",
- "saa7114",
- "tvaudio",
+ "saa7115",
"upd64031a",
"upd64083",
"saa717x",
"wm8739",
"vp27smpx",
+ "m52790",
"gpio",
};
-static int attach_inform(struct i2c_client *client)
+int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
{
- struct ivtv *itv = (struct ivtv *)i2c_get_adapdata(client->adapter);
+ struct i2c_board_info info;
+ struct i2c_client *c;
+ u8 id;
int i;
- IVTV_DEBUG_I2C("i2c client attach\n");
- for (i = 0; i < I2C_CLIENTS_MAX; i++) {
- if (itv->i2c_clients[i] == NULL) {
- itv->i2c_clients[i] = client;
- break;
- }
- }
+ IVTV_DEBUG_I2C("i2c client register\n");
+ if (idx >= ARRAY_SIZE(hw_driverids) || hw_driverids[idx] == 0)
+ return -1;
+ id = hw_driverids[idx];
+ memset(&info, 0, sizeof(info));
+ strcpy(info.driver_name, hw_drivernames[idx]);
+ info.addr = hw_addrs[idx];
+ for (i = 0; itv->i2c_clients[i] && i < I2C_CLIENTS_MAX; i++) {}
+
if (i == I2C_CLIENTS_MAX) {
- IVTV_ERR("Insufficient room for new I2C client\n");
+ IVTV_ERR("insufficient room for new I2C client!\n");
+ return -ENOMEM;
}
+
+ if (id != I2C_DRIVERID_TUNER) {
+ c = i2c_new_device(&itv->i2c_adap, &info);
+ if (c->driver == NULL)
+ i2c_unregister_device(c);
+ else
+ itv->i2c_clients[i] = c;
+ return itv->i2c_clients[i] ? 0 : -ENODEV;
+ }
+
+ /* special tuner handling */
+ c = i2c_new_probed_device(&itv->i2c_adap, &info, itv->card_i2c->radio);
+ if (c && c->driver == NULL)
+ i2c_unregister_device(c);
+ else if (c)
+ itv->i2c_clients[i++] = c;
+ c = i2c_new_probed_device(&itv->i2c_adap, &info, itv->card_i2c->demod);
+ if (c && c->driver == NULL)
+ i2c_unregister_device(c);
+ else if (c)
+ itv->i2c_clients[i++] = c;
+ c = i2c_new_probed_device(&itv->i2c_adap, &info, itv->card_i2c->tv);
+ if (c && c->driver == NULL)
+ i2c_unregister_device(c);
+ else if (c)
+ itv->i2c_clients[i++] = c;
+ return 0;
+}
+
+static int attach_inform(struct i2c_client *client)
+{
return 0;
}
@@ -475,9 +533,6 @@ static struct i2c_adapter ivtv_i2c_adap_hw_template = {
.client_register = attach_inform,
.client_unregister = detach_inform,
.owner = THIS_MODULE,
-#ifdef I2C_ADAP_CLASS_TV_ANALOG
- .class = I2C_ADAP_CLASS_TV_ANALOG,
-#endif
};
static void ivtv_setscl_old(void *data, int state)
@@ -525,15 +580,12 @@ static int ivtv_getsda_old(void *data)
/* template for i2c-bit-algo */
static struct i2c_adapter ivtv_i2c_adap_template = {
.name = "ivtv i2c driver",
- .id = I2C_HW_B_CX2341X, /* algo-bit is OR'd with this */
+ .id = I2C_HW_B_CX2341X,
.algo = NULL, /* set by i2c-algo-bit */
.algo_data = NULL, /* filled from template */
.client_register = attach_inform,
.client_unregister = detach_inform,
.owner = THIS_MODULE,
-#ifdef I2C_ADAP_CLASS_TV_ANALOG
- .class = I2C_ADAP_CLASS_TV_ANALOG,
-#endif
};
static const struct i2c_algo_bit_data ivtv_i2c_algo_template = {
@@ -558,12 +610,9 @@ int ivtv_call_i2c_client(struct ivtv *itv, int addr, unsigned int cmd, void *arg
IVTV_DEBUG_I2C("call_i2c_client addr=%02x\n", addr);
for (i = 0; i < I2C_CLIENTS_MAX; i++) {
client = itv->i2c_clients[i];
- if (client == NULL) {
- continue;
- }
- if (client->driver->command == NULL) {
+ if (client == NULL || client->driver == NULL ||
+ client->driver->command == NULL)
continue;
- }
if (addr == client->addr) {
retval = client->driver->command(client, cmd, arg);
return retval;
@@ -584,7 +633,7 @@ static int ivtv_i2c_id_addr(struct ivtv *itv, u32 id)
for (i = 0; i < I2C_CLIENTS_MAX; i++) {
client = itv->i2c_clients[i];
- if (client == NULL)
+ if (client == NULL || client->driver == NULL)
continue;
if (id == client->driver->id) {
retval = client->addr;
@@ -710,6 +759,16 @@ int init_ivtv_i2c(struct ivtv *itv)
{
IVTV_DEBUG_I2C("i2c init\n");
+ /* Sanity checks for the I2C hardware arrays. They must be the
+ * same size and GPIO must be the last entry.
+ */
+ if (ARRAY_SIZE(hw_driverids) != ARRAY_SIZE(hw_addrs) ||
+ ARRAY_SIZE(hw_drivernames) != ARRAY_SIZE(hw_addrs) ||
+ IVTV_HW_GPIO != (1 << (ARRAY_SIZE(hw_addrs) - 1)) ||
+ hw_driverids[ARRAY_SIZE(hw_addrs) - 1]) {
+ IVTV_ERR("Mismatched I2C hardware arrays\n");
+ return -ENODEV;
+ }
if (itv->options.newi2c > 0) {
memcpy(&itv->i2c_adap, &ivtv_i2c_adap_hw_template,
sizeof(struct i2c_adapter));
@@ -718,9 +777,9 @@ int init_ivtv_i2c(struct ivtv *itv)
sizeof(struct i2c_adapter));
memcpy(&itv->i2c_algo, &ivtv_i2c_algo_template,
sizeof(struct i2c_algo_bit_data));
- itv->i2c_algo.data = itv;
- itv->i2c_adap.algo_data = &itv->i2c_algo;
}
+ itv->i2c_algo.data = itv;
+ itv->i2c_adap.algo_data = &itv->i2c_algo;
sprintf(itv->i2c_adap.name + strlen(itv->i2c_adap.name), " #%d",
itv->num);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.