*/
+#define PVR2_CLIENT_ID_MSP3400 1
+#define PVR2_CLIENT_ID_CX25840 2
+#define PVR2_CLIENT_ID_SAA7115 3
+#define PVR2_CLIENT_ID_TUNER 4
+#define PVR2_CLIENT_ID_CS53132A 5
+
+struct pvr2_device_client_desc {
+ /* One ovr PVR2_CLIENT_ID_xxxx */
+ unsigned char module_id;
+
+ /* Null-terminated array of I2C addresses to try in order
+ initialize the module. It's safe to make this null terminated
+ since we're never going to encounter an i2c device with an
+ address of zero. If this is a null pointer or zero-length,
+ then no I2C addresses have been specified, in which case we'll
+ try some compiled in defaults for now. */
+ unsigned char *i2c_address_list;
+};
+
+struct pvr2_device_client_table {
+ const struct pvr2_device_client_desc *lst;
+ unsigned char cnt;
+};
+
+
struct pvr2_string_table {
const char **lst;
unsigned int cnt;
/* List of additional client modules we need to load */
struct pvr2_string_table client_modules;
+ /* List of defined client modules we need to load */
+ struct pvr2_device_client_table client_table;
+
/* List of FX2 firmware file names we should search; if empty then
FX2 firmware check / load is skipped and we assume the device
was initialized from internal ROM. */
/* size of a firmware chunk */
#define FIRMWARE_CHUNK_SIZE 0x2000
+static const char *module_names[] = {
+ [PVR2_CLIENT_ID_MSP3400] = "msp3400",
+ [PVR2_CLIENT_ID_CX25840] = "cx25840",
+ [PVR2_CLIENT_ID_SAA7115] = "saa7115",
+ [PVR2_CLIENT_ID_TUNER] = "tuner",
+ [PVR2_CLIENT_ID_CS53132A] = "cs53132a",
+};
+
+
+static const unsigned char *module_i2c_addresses[] = {
+ [PVR2_CLIENT_ID_TUNER] = "\x60\x61\x62\x63",
+};
+
+
/* Define the list of additional controls we'll dynamically construct based
on query of the cx2341x module. */
struct pvr2_mpeg_ids {
}
+static unsigned int pvr2_copy_i2c_addr_list(
+ unsigned short *dst, const unsigned char *src,
+ unsigned int dst_max)
+{
+ unsigned int cnt;
+ if (!src) return 0;
+ while (src[cnt] && (cnt + 1) < dst_max) {
+ dst[cnt] = src[cnt];
+ cnt++;
+ }
+ dst[cnt] = I2C_CLIENT_END;
+ return cnt;
+}
+
+
+static void pvr2_hdw_load_subdev(struct pvr2_hdw *hdw,
+ const struct pvr2_device_client_desc *cd)
+{
+ const char *fname;
+ unsigned char mid;
+ struct v4l2_subdev *sd;
+ unsigned int i2ccnt;
+ const unsigned char *p;
+ /* Arbitrary count - max # i2c addresses we will probe */
+ unsigned short i2caddr[25];
+
+ mid = cd->module_id;
+ fname = (mid < ARRAY_SIZE(module_names)) ? module_names[mid] : NULL;
+ if (!fname) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "Module ID %u for device %s is unknown"
+ " (this is probably a bad thing...)",
+ mid,
+ hdw->hdw_desc->description);
+ return;
+ }
+
+ i2ccnt = pvr2_copy_i2c_addr_list(i2caddr, cd->i2c_address_list,
+ ARRAY_SIZE(i2caddr));
+ if (!i2ccnt && ((p = (mid < ARRAY_SIZE(module_i2c_addresses)) ?
+ module_i2c_addresses[mid] : NULL) != NULL)) {
+ /* Second chance: Try default i2c address list */
+ i2ccnt = pvr2_copy_i2c_addr_list(i2caddr, p,
+ ARRAY_SIZE(i2caddr));
+ }
+
+ if (!i2ccnt) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "Module ID %u for device %s:"
+ " No i2c addresses"
+ " (this is probably a bad thing...)",
+ mid, hdw->hdw_desc->description);
+ return;
+ }
+
+ /* Note how the 2nd and 3rd arguments are the same for both
+ * v4l2_i2c_new_subdev() and v4l2_i2c_new_probed_subdev(). Why?
+ * Well the 2nd argument is the module name to load, while the 3rd
+ * argument is documented in the framework as being the "chipid" -
+ * and every other place where I can find examples of this, the
+ * "chipid" appears to just be the module name again. So here we
+ * just do the same thing. */
+ if (i2ccnt == 1) {
+ sd = v4l2_i2c_new_subdev(&hdw->i2c_adap,
+ fname, fname,
+ i2caddr[0]);
+ } else {
+ sd = v4l2_i2c_new_probed_subdev(&hdw->i2c_adap,
+ fname, fname,
+ i2caddr);
+ }
+
+ // ?????
+ /* Based on module ID, we should remember subdev pointers
+ so that we can send certain custom commands where
+ needed. */
+ // ?????
+
+}
+
+
+static void pvr2_hdw_load_modules(struct pvr2_hdw *hdw)
+{
+ unsigned int idx;
+ const struct pvr2_string_table *cm;
+ const struct pvr2_device_client_table *ct;
+
+ cm = &hdw->hdw_desc->client_modules;
+ for (idx = 0; idx < cm->cnt; idx++) {
+ request_module(cm->lst[idx]);
+ }
+
+ ct = &hdw->hdw_desc->client_table;
+ for (idx = 0; idx < ct->cnt; idx++) {
+ pvr2_hdw_load_subdev(hdw,&ct->lst[idx]);
+ }
+}
+
+
static void pvr2_hdw_setup_low(struct pvr2_hdw *hdw)
{
int ret;
if (!pvr2_hdw_dev_ok(hdw)) return;
- for (idx = 0; idx < hdw->hdw_desc->client_modules.cnt; idx++) {
- request_module(hdw->hdw_desc->client_modules.lst[idx]);
- }
-
if (!hdw->hdw_desc->flag_no_powerup) {
pvr2_hdw_cmd_powerup(hdw);
if (!pvr2_hdw_dev_ok(hdw)) return;
pvr2_i2c_core_init(hdw);
if (!pvr2_hdw_dev_ok(hdw)) return;
+ pvr2_hdw_load_modules(hdw);
+
for (idx = 0; idx < CTRLDEF_COUNT; idx++) {
cptr = hdw->controls + idx;
if (cptr->info->skip_init) continue;
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff