void smsspi_unregister(void)
{
struct _spi_device_st *spi_device = spi_dev;
PDEBUG("entering\n");
/* stop interrupts */
smsspiphy_deinit(spi_device->phy_dev);
smscore_unregister_device(spi_device->coredev);
dma_free_coherent(NULL, TX_BUFFER_SIZE, spi_device->txbuf,
spi_device->txbuf_phy_addr);
platform_device_unregister(&smsspi_device);
PDEBUG("exiting\n");
}
int smsspi_register(void)
{
struct smsdevice_params_t params;
int ret = 0;
struct _spi_device_st *spi_device;
struct _spi_dev_cb_st common_cb;
PDEBUG("entering \n");
printk(KERN_WARNING"enter smsspi_register\n");
spi_device =
kmalloc(sizeof(struct _spi_device_st), GFP_KERNEL);
if(!spi_device)
{
printk("spi_device is null smsspi_register\n") ;
return 0;
}
spi_dev = spi_device;
INIT_LIST_HEAD(&spi_device->txqueue);
spi_device->txbuf =
dma_alloc_coherent(NULL, MAX(TX_BUFFER_SIZE, PAGE_SIZE),
&spi_device->txbuf_phy_addr,
GFP_KERNEL | GFP_DMA);
if (!spi_device->txbuf) {
printk(KERN_INFO "%s dma_alloc_coherent(...) failed\n",
__func__);
ret = -ENOMEM;
goto txbuf_error;
}
printk(KERN_INFO "smsmdtv: spi_device->txbuf = 0x%x spi_device->txbuf_phy_addr= 0x%x\n",
(unsigned int)spi_device->txbuf, spi_device->txbuf_phy_addr);
spi_device->phy_dev =
smsspiphy_init(NULL, smsspi_int_handler, spi_device);
if (spi_device->phy_dev == 0) {
printk(KERN_INFO "%s smsspiphy_init(...) failed\n", __func__);
goto phy_error;
}
common_cb.allocate_rx_buf = allocate_rx_buf;
common_cb.free_rx_buf = free_rx_buf;
common_cb.msg_found_cb = msg_found;
common_cb.transfer_data_cb = smsspibus_xfer;
ret =
smsspicommon_init(&spi_device->dev, spi_device, spi_device->phy_dev,
&common_cb);
if (ret) {
printk(KERN_INFO "%s smsspiphy_init(...) failed\n", __func__);
goto common_error;
}
/* register in smscore */
memset(¶ms, 0, sizeof(params));
params.context = spi_device;
params.device = &smsspi_device.dev;
params.buffer_size = RX_BUFFER_SIZE;
params.num_buffers = NUM_RX_BUFFERS;
params.flags = SMS_DEVICE_NOT_READY;
params.sendrequest_handler = smsspi_write;
strcpy(params.devpath, "spi");
params.device_type = default_type;
if (0) {
/* device family */
/* params.setmode_handler = smsspi_setmode; */
} else {
params.flags =
SMS_DEVICE_FAMILY2 | SMS_DEVICE_NOT_READY |
SMS_ROM_NO_RESPONSE;
params.preload_handler = smsspi_preload;
params.postload_handler = smsspi_postload;
}
ret = smscore_register_device(¶ms, &spi_device->coredev);
if (ret < 0) {
printk(KERN_INFO "%s smscore_register_device(...) failed\n",
__func__);
goto reg_device_error;
}
ret = smscore_start_device(spi_device->coredev);
if (ret < 0) {
printk(KERN_INFO "%s smscore_start_device(...) failed\n",
__func__);
goto start_device_error;
}
spi_resume_fail = 0 ;
spi_suspended = 0 ;
#if 0 //ZTE:added by wangtao for cmmbtest 20110712
{
smsspibus_ssp_resume(spi_dev->phy_dev) ;
// smsspi_preload(spi_dev);
printk(KERN_INFO "%s [test] smsspi_preload test end\n",__func__);
}
#endif
printk(KERN_WARNING"helike exit smsspi_register\n");
PDEBUG("exiting\n");
return 0;
start_device_error:
smscore_unregister_device(spi_device->coredev);
reg_device_error:
common_error:
smsspiphy_deinit(spi_device->phy_dev);
phy_error:
dma_free_coherent(NULL, TX_BUFFER_SIZE, spi_device->txbuf,
spi_device->txbuf_phy_addr);
txbuf_error:
PDEBUG("exiting error %d\n", ret);
return ret;
}
int smsspi_register(void)
{
struct smsdevice_params_t params;
int ret;
struct _spi_device_st *spi_device;
struct _spi_dev_cb_st common_cb;
PDEBUG("entering \n");
spi_device =
kmalloc(sizeof(struct _spi_device_st), GFP_KERNEL);
spi_dev = spi_device;
INIT_LIST_HEAD(&spi_device->txqueue);
ret = platform_device_register(&smsspi_device);
if (ret < 0) {
PERROR("platform_device_register failed\n");
return ret;
}
#if defined(MOT_FEAT_OMAP_DMA_USE)
spi_device->txbuf =
dma_alloc_coherent(NULL, TX_BUFFER_SIZE,
&spi_device->txbuf_phy_addr,
GFP_KERNEL | GFP_DMA);
if (!spi_device->txbuf) {
printk(KERN_INFO "%s dma_alloc_coherent(...) failed\n",
__func__);
ret = -ENOMEM;
goto txbuf_error;
}
#endif
spi_device->phy_dev =
smsspiphy_init(NULL, smsspi_int_handler, spi_device);
if (spi_device->phy_dev == 0) {
printk(KERN_INFO "%s smsspiphy_init(...) failed\n", __func__);
goto phy_error;
}
common_cb.allocate_rx_buf = allocate_rx_buf;
common_cb.free_rx_buf = free_rx_buf;
common_cb.msg_found_cb = msg_found;
common_cb.transfer_data_cb = smsspibus_xfer;
ret =
smsspicommon_init(&spi_device->dev, spi_device, spi_device->phy_dev,
&common_cb);
if (ret) {
printk(KERN_INFO "%s smsspiphy_init(...) failed\n", __func__);
goto common_error;
}
/* register in smscore */
memset(¶ms, 0, sizeof(params));
params.context = spi_device;
params.device = &smsspi_device.dev;
params.buffer_size = RX_BUFFER_SIZE;
params.num_buffers = NUM_RX_BUFFERS;
params.flags = SMS_DEVICE_NOT_READY;
params.sendrequest_handler = smsspi_write;
strcpy(params.devpath, "spi");
params.device_type = default_type;
if (0) {
/* device family */
/* params.setmode_handler = smsspi_setmode; */
} else {
params.flags =
SMS_DEVICE_FAMILY2 | SMS_DEVICE_NOT_READY;
params.preload_handler = smsspi_preload;
params.postload_handler = smsspi_postload;
}
ret = smscore_register_device(¶ms, &spi_device->coredev);
if (ret < 0) {
printk(KERN_INFO "%s smscore_register_device(...) failed\n",
__func__);
goto reg_device_error;
}
ret = smscore_start_device(spi_device->coredev);
if (ret < 0) {
printk(KERN_INFO "%s smscore_start_device(...) failed\n",
__func__);
goto start_device_error;
}
PDEBUG("exiting\n");
return 0;
start_device_error:
smscore_unregister_device(spi_device->coredev);
reg_device_error:
common_error:
smsspiphy_deinit(spi_device->phy_dev);
phy_error:
dma_free_coherent(NULL, TX_BUFFER_SIZE, spi_device->txbuf,
spi_device->txbuf_phy_addr);
txbuf_error:
platform_device_unregister(&smsspi_device);
PDEBUG("exiting error %d\n", ret);
return ret;
}