me8254_subdevice_t* me8254_constr(uint16_t device_id, void* reg_base, unsigned int me8254_idx, unsigned int ctr_idx,
me_lock_t* ctrl_reg_lock, me_lock_t* clk_src_reg_lock)
{
me8254_subdevice_t *subdevice;
PDEBUG("executed.\n");
/** @todo Checkings should be removed. We can safetly assume that data passed from upper level are correct.
*/
// Check if counter index is out of range
if (ctr_idx > 2)
{
PERROR("Counter index is out of range.\n");
return NULL;
}
// Check device specific values.
switch (device_id)
{
case PCI_DEVICE_ID_MEILHAUS_ME140A:
case PCI_DEVICE_ID_MEILHAUS_ME14EA:
case PCI_DEVICE_ID_MEILHAUS_ME4610:
case PCI_DEVICE_ID_MEILHAUS_ME4660:
case PCI_DEVICE_ID_MEILHAUS_ME4660I:
case PCI_DEVICE_ID_MEILHAUS_ME4660S:
case PCI_DEVICE_ID_MEILHAUS_ME4660IS:
case PCI_DEVICE_ID_MEILHAUS_ME4670:
case PCI_DEVICE_ID_MEILHAUS_ME4670I:
case PCI_DEVICE_ID_MEILHAUS_ME4670S:
case PCI_DEVICE_ID_MEILHAUS_ME4670IS:
case PCI_DEVICE_ID_MEILHAUS_ME4680:
case PCI_DEVICE_ID_MEILHAUS_ME4680I:
case PCI_DEVICE_ID_MEILHAUS_ME4680S:
case PCI_DEVICE_ID_MEILHAUS_ME4680IS:
case PCI_DEVICE_ID_MEILHAUS_ME4560:
case PCI_DEVICE_ID_MEILHAUS_ME4560I:
case PCI_DEVICE_ID_MEILHAUS_ME4560S:
case PCI_DEVICE_ID_MEILHAUS_ME4560IS:
case PCI_DEVICE_ID_MEILHAUS_ME4570:
case PCI_DEVICE_ID_MEILHAUS_ME4570I:
case PCI_DEVICE_ID_MEILHAUS_ME4570S:
case PCI_DEVICE_ID_MEILHAUS_ME4570IS:
case PCI_DEVICE_ID_MEILHAUS_ME4760:
case PCI_DEVICE_ID_MEILHAUS_ME4760I:
case PCI_DEVICE_ID_MEILHAUS_ME4760S:
case PCI_DEVICE_ID_MEILHAUS_ME4760IS:
case PCI_DEVICE_ID_MEILHAUS_ME4770:
case PCI_DEVICE_ID_MEILHAUS_ME4770I:
case PCI_DEVICE_ID_MEILHAUS_ME4770S:
case PCI_DEVICE_ID_MEILHAUS_ME4770IS:
case PCI_DEVICE_ID_MEILHAUS_ME4780:
case PCI_DEVICE_ID_MEILHAUS_ME4780I:
case PCI_DEVICE_ID_MEILHAUS_ME4780S:
case PCI_DEVICE_ID_MEILHAUS_ME4780IS:
case PCI_DEVICE_ID_MEILHAUS_ME4860:
case PCI_DEVICE_ID_MEILHAUS_ME4860I:
case PCI_DEVICE_ID_MEILHAUS_ME4860S:
case PCI_DEVICE_ID_MEILHAUS_ME4860IS:
case PCI_DEVICE_ID_MEILHAUS_ME4870:
case PCI_DEVICE_ID_MEILHAUS_ME4870I:
case PCI_DEVICE_ID_MEILHAUS_ME4870S:
case PCI_DEVICE_ID_MEILHAUS_ME4870IS:
case PCI_DEVICE_ID_MEILHAUS_ME4880:
case PCI_DEVICE_ID_MEILHAUS_ME4880I:
case PCI_DEVICE_ID_MEILHAUS_ME4880S:
case PCI_DEVICE_ID_MEILHAUS_ME4880IS:
case PCI_DEVICE_ID_MEILHAUS_ME0752:
case PCI_DEVICE_ID_MEILHAUS_ME0754:
case PCI_DEVICE_ID_MEILHAUS_ME0762:
case PCI_DEVICE_ID_MEILHAUS_ME0764:
case PCI_DEVICE_ID_MEILHAUS_ME0772:
case PCI_DEVICE_ID_MEILHAUS_ME0774:
case PCI_DEVICE_ID_MEILHAUS_ME0782:
case PCI_DEVICE_ID_MEILHAUS_ME0784:
case PCI_DEVICE_ID_MEILHAUS_ME8100_A:
case PCI_DEVICE_ID_MEILHAUS_ME8100_B:
if (me8254_idx > 0)
{
PERROR("8254 index is out of range. Must be 0.\n");
return NULL;
}
break;
case PCI_DEVICE_ID_MEILHAUS_ME140B:
case PCI_DEVICE_ID_MEILHAUS_ME14EB:
if (me8254_idx > 1)
{
PERROR("8254 index is out of range. Must be 0 or 1.\n");
return NULL;
}
break;
case PCI_DEVICE_ID_MEILHAUS_ME140C:
if (me8254_idx > 4)
{
PERROR("8254 index is out of range. Must be between 0 and 3.\n");
return NULL;
}
case PCI_DEVICE_ID_MEILHAUS_ME140D:
if (me8254_idx > 9)
{
PERROR("8254 index is out of range. Must be between 0 and 8.\n");
return NULL;
}
break;
default:
PERROR_CRITICAL("8254 registred for %x!\n", device_id);
return NULL;
}
// Allocate memory for subdevice instance
subdevice = kzalloc(sizeof(me8254_subdevice_t), GFP_KERNEL);
if (!subdevice)
{
PERROR("Cannot get memory for 8254 instance.\n");
return NULL;
}
// Initialize subdevice base class
if (me_subdevice_init(&subdevice->base))
{
PERROR("Cannot initialize subdevice base class instance.\n");
kfree(subdevice);
return NULL;
}
// Initialize spin locks.
subdevice->ctrl_reg_lock = ctrl_reg_lock;
subdevice->clk_src_reg_lock = clk_src_reg_lock;
// Save type of Meilhaus device
subdevice->device_id = device_id;
// Save the subdevice indexes.
subdevice->me8254_idx = me8254_idx;
subdevice->ctr_idx = ctr_idx;
subdevice->base.idx = ctr_idx + (me8254_idx * 3);
/** @todo Setting flags for particular implementations create portibility problem.
Flags should be passed from upper level.
Also registers should be some how provided by upper level call.
*/
// Do device specific initialization
switch (device_id)
{
case PCI_DEVICE_ID_MEILHAUS_ME140A:
case PCI_DEVICE_ID_MEILHAUS_ME14EA:
case PCI_DEVICE_ID_MEILHAUS_ME140B:
case PCI_DEVICE_ID_MEILHAUS_ME14EB:
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL;
if (ctr_idx == 0)
subdevice->caps |= ME_CAPS_CTR_CLK_INTERNAL_1MHZ | ME_CAPS_CTR_CLK_INTERNAL_10MHZ;
else
subdevice->caps |= ME_CAPS_CTR_CLK_PREVIOUS;
// Get the counters registers
subdevice->val_reg = me1400AB_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg = me1400AB_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = me1400AB_get_clk_src_reg(reg_base, me8254_idx, ctr_idx);
break;
case PCI_DEVICE_ID_MEILHAUS_ME140C:
case PCI_DEVICE_ID_MEILHAUS_ME140D:
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL | ME_CAPS_CTR_CLK_PREVIOUS;
if (ctr_idx == 0)
{
subdevice->caps |= ME_CAPS_CTR_CLK_INTERNAL_1MHZ | ME_CAPS_CTR_CLK_INTERNAL_10MHZ;
if ((me8254_idx == 0) || (me8254_idx == 5))
{// No cascading for first counter on first chips.
subdevice->caps &= ~ME_CAPS_CTR_CLK_PREVIOUS;
}
}
// Get the counters registers
subdevice->val_reg = me1400CD_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg = me1400CD_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = me1400CD_get_clk_src_reg(reg_base, me8254_idx, ctr_idx);
break;
case PCI_DEVICE_ID_MEILHAUS_ME4610:
case PCI_DEVICE_ID_MEILHAUS_ME4660:
case PCI_DEVICE_ID_MEILHAUS_ME4660I:
case PCI_DEVICE_ID_MEILHAUS_ME4660S:
case PCI_DEVICE_ID_MEILHAUS_ME4660IS:
case PCI_DEVICE_ID_MEILHAUS_ME4670:
case PCI_DEVICE_ID_MEILHAUS_ME4670I:
case PCI_DEVICE_ID_MEILHAUS_ME4670S:
case PCI_DEVICE_ID_MEILHAUS_ME4670IS:
case PCI_DEVICE_ID_MEILHAUS_ME4680:
case PCI_DEVICE_ID_MEILHAUS_ME4680I:
case PCI_DEVICE_ID_MEILHAUS_ME4680S:
case PCI_DEVICE_ID_MEILHAUS_ME4680IS:
case PCI_DEVICE_ID_MEILHAUS_ME4560:
case PCI_DEVICE_ID_MEILHAUS_ME4560I:
case PCI_DEVICE_ID_MEILHAUS_ME4560S:
case PCI_DEVICE_ID_MEILHAUS_ME4560IS:
case PCI_DEVICE_ID_MEILHAUS_ME4570:
case PCI_DEVICE_ID_MEILHAUS_ME4570I:
case PCI_DEVICE_ID_MEILHAUS_ME4570S:
case PCI_DEVICE_ID_MEILHAUS_ME4570IS:
case PCI_DEVICE_ID_MEILHAUS_ME4760:
case PCI_DEVICE_ID_MEILHAUS_ME4760I:
case PCI_DEVICE_ID_MEILHAUS_ME4760S:
case PCI_DEVICE_ID_MEILHAUS_ME4760IS:
case PCI_DEVICE_ID_MEILHAUS_ME4770:
case PCI_DEVICE_ID_MEILHAUS_ME4770I:
case PCI_DEVICE_ID_MEILHAUS_ME4770S:
case PCI_DEVICE_ID_MEILHAUS_ME4770IS:
case PCI_DEVICE_ID_MEILHAUS_ME4780:
case PCI_DEVICE_ID_MEILHAUS_ME4780I:
case PCI_DEVICE_ID_MEILHAUS_ME4780S:
case PCI_DEVICE_ID_MEILHAUS_ME4780IS:
case PCI_DEVICE_ID_MEILHAUS_ME4860:
case PCI_DEVICE_ID_MEILHAUS_ME4860I:
case PCI_DEVICE_ID_MEILHAUS_ME4860S:
case PCI_DEVICE_ID_MEILHAUS_ME4860IS:
case PCI_DEVICE_ID_MEILHAUS_ME4870:
case PCI_DEVICE_ID_MEILHAUS_ME4870I:
case PCI_DEVICE_ID_MEILHAUS_ME4870S:
case PCI_DEVICE_ID_MEILHAUS_ME4870IS:
case PCI_DEVICE_ID_MEILHAUS_ME4880:
case PCI_DEVICE_ID_MEILHAUS_ME4880I:
case PCI_DEVICE_ID_MEILHAUS_ME4880S:
case PCI_DEVICE_ID_MEILHAUS_ME4880IS:
case PCI_DEVICE_ID_MEILHAUS_ME0752:
case PCI_DEVICE_ID_MEILHAUS_ME0754:
case PCI_DEVICE_ID_MEILHAUS_ME0762:
case PCI_DEVICE_ID_MEILHAUS_ME0764:
case PCI_DEVICE_ID_MEILHAUS_ME0772:
case PCI_DEVICE_ID_MEILHAUS_ME0774:
case PCI_DEVICE_ID_MEILHAUS_ME0782:
case PCI_DEVICE_ID_MEILHAUS_ME0784:
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg = me4600_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg = me4600_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = 0; // Not used
break;
case PCI_DEVICE_ID_MEILHAUS_ME8100_A:
case PCI_DEVICE_ID_MEILHAUS_ME8100_B:
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg = me8100_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg = me8100_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = 0; // Not used
break;
default:
PERROR("Unknown device type.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Overload subdevice base class methods.
subdevice->base.me_subdevice_io_reset_subdevice = me8254_io_reset_subdevice;
subdevice->base.me_subdevice_io_single_config = me8254_io_single_config;
subdevice->base.me_subdevice_io_single_read = me8254_io_single_read;
subdevice->base.me_subdevice_io_single_write = me8254_io_single_write;
subdevice->base.me_subdevice_query_number_channels = me8254_query_number_channels;
subdevice->base.me_subdevice_query_subdevice_type = me8254_query_subdevice_type;
subdevice->base.me_subdevice_query_subdevice_caps = me8254_query_subdevice_caps;
subdevice->base.me_subdevice_query_subdevice_caps_args = me8254_query_subdevice_caps_args;
return subdevice;
}
me8254_subdevice_t *me8254_constructor(uint32_t device_id,
uint32_t reg_base,
unsigned int me8254_idx,
unsigned int ctr_idx,
spinlock_t * ctrl_reg_lock,
spinlock_t * clk_src_reg_lock)
{
me8254_subdevice_t *subdevice;
int err;
PDEBUG("executed.\n");
// Allocate memory for subdevice instance
subdevice = kmalloc(sizeof(me8254_subdevice_t), GFP_KERNEL);
if (!subdevice) {
PERROR("Cannot get memory for 8254 instance.\n");
return NULL;
}
memset(subdevice, 0, sizeof(me8254_subdevice_t));
// Check if counter index is out of range
if (ctr_idx > 2) {
PERROR("Counter index is out of range.\n");
kfree(subdevice);
return NULL;
}
// Initialize subdevice base class
err = me_subdevice_init(&subdevice->base);
if (err) {
PERROR("Cannot initialize subdevice base class instance.\n");
kfree(subdevice);
return NULL;
}
// Initialize spin locks.
spin_lock_init(&subdevice->subdevice_lock);
subdevice->ctrl_reg_lock = ctrl_reg_lock;
subdevice->clk_src_reg_lock = clk_src_reg_lock;
// Save type of Meilhaus device
subdevice->device_id = device_id;
// Save the indices
subdevice->me8254_idx = me8254_idx;
subdevice->ctr_idx = ctr_idx;
// Do device specific initialization
switch (device_id) {
case PCI_DEVICE_ID_MEILHAUS_ME140A:
case PCI_DEVICE_ID_MEILHAUS_ME14EA:
// Check if 8254 index is out of range
if (me8254_idx > 0) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
case PCI_DEVICE_ID_MEILHAUS_ME140B: // Fall through
case PCI_DEVICE_ID_MEILHAUS_ME14EB:
// Check if 8254 index is out of range
if (me8254_idx > 1) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Initialize the counters capabilities
if (ctr_idx == 0)
subdevice->caps =
ME_CAPS_CTR_CLK_INTERNAL_1MHZ |
ME_CAPS_CTR_CLK_INTERNAL_10MHZ |
ME_CAPS_CTR_CLK_EXTERNAL;
else
subdevice->caps =
ME_CAPS_CTR_CLK_PREVIOUS | ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg =
me1400AB_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg =
me1400AB_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg =
me1400AB_get_clk_src_reg(reg_base, me8254_idx, ctr_idx);
break;
case PCI_DEVICE_ID_MEILHAUS_ME140C:
// Check if 8254 index is out of range
if (me8254_idx > 4) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
case PCI_DEVICE_ID_MEILHAUS_ME140D:
// Check if 8254 index is out of range
if (me8254_idx > 9) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Initialize the counters capabilities
if (ctr_idx == 0) {
if (me8254_idx == 0)
subdevice->caps =
ME_CAPS_CTR_CLK_PREVIOUS |
ME_CAPS_CTR_CLK_INTERNAL_1MHZ |
ME_CAPS_CTR_CLK_INTERNAL_10MHZ |
ME_CAPS_CTR_CLK_EXTERNAL;
else
subdevice->caps =
ME_CAPS_CTR_CLK_INTERNAL_1MHZ |
ME_CAPS_CTR_CLK_INTERNAL_10MHZ |
ME_CAPS_CTR_CLK_EXTERNAL;
} else
subdevice->caps =
ME_CAPS_CTR_CLK_PREVIOUS | ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg =
me1400CD_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg =
me1400CD_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg =
me1400CD_get_clk_src_reg(reg_base, me8254_idx, ctr_idx);
break;
case PCI_DEVICE_ID_MEILHAUS_ME4610:
case PCI_DEVICE_ID_MEILHAUS_ME4660:
case PCI_DEVICE_ID_MEILHAUS_ME4660I:
case PCI_DEVICE_ID_MEILHAUS_ME4660S:
case PCI_DEVICE_ID_MEILHAUS_ME4660IS:
case PCI_DEVICE_ID_MEILHAUS_ME4670:
case PCI_DEVICE_ID_MEILHAUS_ME4670I:
case PCI_DEVICE_ID_MEILHAUS_ME4670S:
case PCI_DEVICE_ID_MEILHAUS_ME4670IS:
case PCI_DEVICE_ID_MEILHAUS_ME4680:
case PCI_DEVICE_ID_MEILHAUS_ME4680I:
case PCI_DEVICE_ID_MEILHAUS_ME4680S:
case PCI_DEVICE_ID_MEILHAUS_ME4680IS:
// Check if 8254 index is out of range
if (me8254_idx > 0) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg =
me4600_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg =
me4600_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = 0; // Not used
break;
case PCI_DEVICE_ID_MEILHAUS_ME8100_A:
case PCI_DEVICE_ID_MEILHAUS_ME8100_B:
// Check if 8254 index is out of range
if (me8254_idx > 0) {
PERROR("8254 index is out of range.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Initialize the counters capabilities
subdevice->caps = ME_CAPS_CTR_CLK_EXTERNAL;
// Get the counters registers
subdevice->val_reg =
me8100_get_val_reg(reg_base, me8254_idx, ctr_idx);
subdevice->ctrl_reg =
me8100_get_ctrl_reg(reg_base, me8254_idx, ctr_idx);
subdevice->clk_src_reg = 0; // Not used
break;
case PCI_DEVICE_ID_MEILHAUS_ME4650:
case PCI_DEVICE_ID_MEILHAUS_ME1400:
case PCI_DEVICE_ID_MEILHAUS_ME14E0:
PERROR("No 8254 subdevices available for subdevice device.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
default:
PERROR("Unknown device type.\n");
me_subdevice_deinit(&subdevice->base);
kfree(subdevice);
return NULL;
}
// Overload subdevice base class methods.
subdevice->base.me_subdevice_io_reset_subdevice =
me8254_io_reset_subdevice;
subdevice->base.me_subdevice_io_single_config = me8254_io_single_config;
subdevice->base.me_subdevice_io_single_read = me8254_io_single_read;
subdevice->base.me_subdevice_io_single_write = me8254_io_single_write;
subdevice->base.me_subdevice_query_number_channels =
me8254_query_number_channels;
subdevice->base.me_subdevice_query_subdevice_type =
me8254_query_subdevice_type;
subdevice->base.me_subdevice_query_subdevice_caps =
me8254_query_subdevice_caps;
subdevice->base.me_subdevice_query_subdevice_caps_args =
me8254_query_subdevice_caps_args;
return subdevice;
}