static int __devinit sunxi_ss_probe(struct platform_device *pdev)
{
int ret = 0;
sunxi_ss_t *sss = NULL;
sss = devm_kzalloc(&pdev->dev, sizeof(sunxi_ss_t), GFP_KERNEL);
if (sss == NULL) {
SS_ERR("Unable to allocate sunxi_ss_t\n");
return -ENOMEM;
}
snprintf(sss->dev_name, sizeof(sss->dev_name), SUNXI_SS_DEV_NAME);
platform_set_drvdata(pdev, sss);
ret = sunxi_ss_res_request(pdev);
if (ret != 0) {
goto err0;
}
sss->pdev = pdev;
ret = sunxi_ss_hw_init(sss);
if (ret != 0) {
SS_ERR("SS hw init failed!\n");
goto err1;
}
spin_lock_init(&sss->lock);
INIT_WORK(&sss->work, sunxi_ss_work);
crypto_init_queue(&sss->queue, 16);
sss->workqueue = create_singlethread_workqueue(sss->dev_name);
if (sss->workqueue == NULL) {
SS_ERR("Unable to create workqueue\n");
ret = -EPERM;
goto err2;
}
ret = sunxi_ss_alg_register();
if (ret != 0) {
SS_ERR("sunxi_ss_alg_register() failed! return %d \n", ret);
goto err3;
}
sunxi_ss_sysfs_create(pdev);
ss_dev = sss;
SS_DBG("SS driver probe succeed, base 0x%p, irq %d!\n", sss->base_addr, sss->irq);
return 0;
err3:
destroy_workqueue(sss->workqueue);
err2:
sunxi_ss_hw_exit(sss);
err1:
sunxi_ss_res_release(sss);
err0:
platform_set_drvdata(pdev, NULL);
return ret;
}
static int __init brcm_spum_init(void)
{
spum_dev = (struct brcm_spum_device *)
kzalloc(sizeof(struct brcm_spum_device), GFP_KERNEL);
spin_lock_init(&spum_dev->lock);
crypto_init_queue(&spum_dev->spum_queue, SPUM_QUEUE_LENGTH);
spum_dev->flags = 0;
/* Aquire DMA channels */
if (dma_request_chan(&spum_dev->rx_dma_chan, "SPUM_OpenA") != 0) {
pr_err("%s: Rx dma_request_chan failed\n", __func__);
return -1;
}
if (dma_request_chan(&spum_dev->tx_dma_chan, "SPUM_OpenB") != 0) {
pr_err("%s: Tx dma_request_chan failed\n", __func__);
goto err;
}
pr_info("%s: DMA channel aquired rx %d tx %d\n", __func__,
spum_dev->rx_dma_chan, spum_dev->tx_dma_chan);
return 0;
err:
dma_free_chan(spum_dev->rx_dma_chan);
return -EIO;
}
static int async_chainiv_init(struct crypto_tfm *tfm)
{
struct async_chainiv_ctx *ctx = crypto_tfm_ctx(tfm);
spin_lock_init(&ctx->lock);
crypto_init_queue(&ctx->queue, 100);
INIT_WORK(&ctx->postponed, async_chainiv_do_postponed);
return chainiv_init_common(tfm);
}
static inline int cryptd_create_thread(struct cryptd_state *state,
int (*fn)(void *data), const char *name)
{
spin_lock_init(&state->lock);
mutex_init(&state->mutex);
crypto_init_queue(&state->queue, CRYPTD_MAX_QLEN);
state->task = kthread_run(fn, state, name);
if (IS_ERR(state->task))
return PTR_ERR(state->task);
return 0;
}
static int mv_probe(struct platform_device *pdev)
{
struct crypto_priv *cp;
struct resource *res;
int irq;
int ret;
if (cpg) {
printk(KERN_ERR "Second crypto dev?\n");
return -EEXIST;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
if (!res)
return -ENXIO;
cp = kzalloc(sizeof(*cp), GFP_KERNEL);
if (!cp)
return -ENOMEM;
spin_lock_init(&cp->lock);
crypto_init_queue(&cp->queue, 50);
cp->reg = ioremap(res->start, res->end - res->start + 1);
if (!cp->reg) {
ret = -ENOMEM;
goto err;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram");
if (!res) {
ret = -ENXIO;
goto err_unmap_reg;
}
cp->sram_size = res->end - res->start + 1;
cp->max_req_size = cp->sram_size - SRAM_CFG_SPACE;
cp->sram = ioremap(res->start, cp->sram_size);
if (!cp->sram) {
ret = -ENOMEM;
goto err_unmap_reg;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0 || irq == NO_IRQ) {
ret = irq;
goto err_unmap_sram;
}
cp->irq = irq;
platform_set_drvdata(pdev, cp);
cpg = cp;
cp->queue_th = kthread_run(queue_manag, cp, "mv_crypto");
if (IS_ERR(cp->queue_th)) {
ret = PTR_ERR(cp->queue_th);
goto err_thread;
}
ret = request_irq(irq, crypto_int, IRQF_DISABLED, dev_name(&pdev->dev),
cp);
if (ret)
goto err_unmap_sram;
writel(SEC_INT_ACCEL0_DONE, cpg->reg + SEC_ACCEL_INT_MASK);
writel(SEC_CFG_STOP_DIG_ERR, cpg->reg + SEC_ACCEL_CFG);
ret = crypto_register_alg(&mv_aes_alg_ecb);
if (ret)
goto err_reg;
ret = crypto_register_alg(&mv_aes_alg_cbc);
if (ret)
goto err_unreg_ecb;
return 0;
err_unreg_ecb:
crypto_unregister_alg(&mv_aes_alg_ecb);
err_thread:
free_irq(irq, cp);
err_reg:
kthread_stop(cp->queue_th);
err_unmap_sram:
iounmap(cp->sram);
err_unmap_reg:
iounmap(cp->reg);
err:
kfree(cp);
cpg = NULL;
platform_set_drvdata(pdev, NULL);
return ret;
}
static int s5p_aes_probe(struct platform_device *pdev)
{
int i, j, err = -ENODEV;
struct s5p_aes_dev *pdata;
struct device *dev = &pdev->dev;
struct resource *res;
if (s5p_dev)
return -EEXIST;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (!devm_request_mem_region(dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
pdata->clk = clk_get(dev, "secss");
if (IS_ERR(pdata->clk)) {
dev_err(dev, "failed to find secss clock source\n");
return -ENOENT;
}
clk_enable(pdata->clk);
spin_lock_init(&pdata->lock);
pdata->ioaddr = devm_ioremap(dev, res->start,
resource_size(res));
pdata->irq_hash = platform_get_irq_byname(pdev, "hash");
if (pdata->irq_hash < 0) {
err = pdata->irq_hash;
dev_warn(dev, "hash interrupt is not available.\n");
goto err_irq;
}
err = devm_request_irq(dev, pdata->irq_hash, s5p_aes_interrupt,
IRQF_SHARED, pdev->name, pdev);
if (err < 0) {
dev_warn(dev, "hash interrupt is not available.\n");
goto err_irq;
}
pdata->irq_fc = platform_get_irq_byname(pdev, "feed control");
if (pdata->irq_fc < 0) {
err = pdata->irq_fc;
dev_warn(dev, "feed control interrupt is not available.\n");
goto err_irq;
}
err = devm_request_irq(dev, pdata->irq_fc, s5p_aes_interrupt,
IRQF_SHARED, pdev->name, pdev);
if (err < 0) {
dev_warn(dev, "feed control interrupt is not available.\n");
goto err_irq;
}
pdata->dev = dev;
platform_set_drvdata(pdev, pdata);
s5p_dev = pdata;
tasklet_init(&pdata->tasklet, s5p_tasklet_cb, (unsigned long)pdata);
crypto_init_queue(&pdata->queue, CRYPTO_QUEUE_LEN);
for (i = 0; i < ARRAY_SIZE(algs); i++) {
INIT_LIST_HEAD(&algs[i].cra_list);
err = crypto_register_alg(&algs[i]);
if (err)
goto err_algs;
}
pr_info("s5p-sss driver registered\n");
return 0;
err_algs:
dev_err(dev, "can't register '%s': %d\n", algs[i].cra_name, err);
for (j = 0; j < i; j++)
crypto_unregister_alg(&algs[j]);
tasklet_kill(&pdata->tasklet);
err_irq:
clk_disable(pdata->clk);
clk_put(pdata->clk);
s5p_dev = NULL;
platform_set_drvdata(pdev, NULL);
return err;
}
static int sahara_probe(struct platform_device *pdev)
{
struct sahara_dev *dev;
struct resource *res;
u32 version;
int irq;
int err;
int i;
dev = devm_kzalloc(&pdev->dev, sizeof(struct sahara_dev), GFP_KERNEL);
if (dev == NULL) {
dev_err(&pdev->dev, "unable to alloc data struct.\n");
return -ENOMEM;
}
dev->device = &pdev->dev;
platform_set_drvdata(pdev, dev);
/* Get the base address */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "failed to get memory region resource\n");
return -ENODEV;
}
if (devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), SAHARA_NAME) == NULL) {
dev_err(&pdev->dev, "failed to request memory region\n");
return -ENOENT;
}
dev->regs_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!dev->regs_base) {
dev_err(&pdev->dev, "failed to ioremap address region\n");
return -ENOENT;
}
/* Get the IRQ */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get irq resource\n");
return irq;
}
if (devm_request_irq(&pdev->dev, irq, sahara_irq_handler,
0, SAHARA_NAME, dev) < 0) {
dev_err(&pdev->dev, "failed to request irq\n");
return -ENOENT;
}
/* clocks */
dev->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(dev->clk_ipg)) {
dev_err(&pdev->dev, "Could not get ipg clock\n");
return PTR_ERR(dev->clk_ipg);
}
dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(dev->clk_ahb)) {
dev_err(&pdev->dev, "Could not get ahb clock\n");
return PTR_ERR(dev->clk_ahb);
}
/* Allocate HW descriptors */
dev->hw_desc[0] = dma_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
&dev->hw_phys_desc[0], GFP_KERNEL);
if (!dev->hw_desc[0]) {
dev_err(&pdev->dev, "Could not allocate hw descriptors\n");
return -ENOMEM;
}
dev->hw_desc[1] = dev->hw_desc[0] + 1;
dev->hw_phys_desc[1] = dev->hw_phys_desc[0] +
sizeof(struct sahara_hw_desc);
/* Allocate space for iv and key */
dev->key_base = dma_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128,
&dev->key_phys_base, GFP_KERNEL);
if (!dev->key_base) {
dev_err(&pdev->dev, "Could not allocate memory for key\n");
err = -ENOMEM;
goto err_key;
}
dev->iv_base = dev->key_base + AES_KEYSIZE_128;
dev->iv_phys_base = dev->key_phys_base + AES_KEYSIZE_128;
/* Allocate space for HW links */
dev->hw_link[0] = dma_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
&dev->hw_phys_link[0], GFP_KERNEL);
if (!dev->hw_link[0]) {
dev_err(&pdev->dev, "Could not allocate hw links\n");
err = -ENOMEM;
goto err_link;
}
for (i = 1; i < SAHARA_MAX_HW_LINK; i++) {
dev->hw_phys_link[i] = dev->hw_phys_link[i - 1] +
sizeof(struct sahara_hw_link);
dev->hw_link[i] = dev->hw_link[i - 1] + 1;
}
crypto_init_queue(&dev->queue, SAHARA_QUEUE_LENGTH);
dev_ptr = dev;
tasklet_init(&dev->queue_task, sahara_aes_queue_task,
(unsigned long)dev);
tasklet_init(&dev->done_task, sahara_aes_done_task,
(unsigned long)dev);
init_timer(&dev->watchdog);
dev->watchdog.function = &sahara_watchdog;
dev->watchdog.data = (unsigned long)dev;
clk_prepare_enable(dev->clk_ipg);
clk_prepare_enable(dev->clk_ahb);
version = sahara_read(dev, SAHARA_REG_VERSION);
if (version != SAHARA_VERSION_3) {
dev_err(&pdev->dev, "SAHARA version %d not supported\n",
version);
err = -ENODEV;
goto err_algs;
}
sahara_write(dev, SAHARA_CMD_RESET | SAHARA_CMD_MODE_BATCH,
SAHARA_REG_CMD);
sahara_write(dev, SAHARA_CONTROL_SET_THROTTLE(0) |
SAHARA_CONTROL_SET_MAXBURST(8) |
SAHARA_CONTROL_RNG_AUTORSD |
SAHARA_CONTROL_ENABLE_INT,
SAHARA_REG_CONTROL);
err = sahara_register_algs(dev);
if (err)
goto err_algs;
dev_info(&pdev->dev, "SAHARA version %d initialized\n", version);
return 0;
err_algs:
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
dev->hw_link[0], dev->hw_phys_link[0]);
clk_disable_unprepare(dev->clk_ipg);
clk_disable_unprepare(dev->clk_ahb);
dev_ptr = NULL;
err_link:
dma_free_coherent(&pdev->dev,
2 * AES_KEYSIZE_128,
dev->key_base, dev->key_phys_base);
err_key:
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
dev->hw_desc[0], dev->hw_phys_desc[0]);
return err;
}
static int rk_crypto_probe(struct platform_device *pdev)
{
struct resource *res;
struct device *dev = &pdev->dev;
struct rk_crypto_info *crypto_info;
int err = 0;
crypto_info = devm_kzalloc(&pdev->dev,
sizeof(*crypto_info), GFP_KERNEL);
if (!crypto_info) {
err = -ENOMEM;
goto err_crypto;
}
crypto_info->rst = devm_reset_control_get(dev, "crypto-rst");
if (IS_ERR(crypto_info->rst)) {
err = PTR_ERR(crypto_info->rst);
goto err_crypto;
}
reset_control_assert(crypto_info->rst);
usleep_range(10, 20);
reset_control_deassert(crypto_info->rst);
err = devm_add_action_or_reset(dev, rk_crypto_action, crypto_info);
if (err)
goto err_crypto;
spin_lock_init(&crypto_info->lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
crypto_info->reg = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(crypto_info->reg)) {
err = PTR_ERR(crypto_info->reg);
goto err_crypto;
}
crypto_info->aclk = devm_clk_get(&pdev->dev, "aclk");
if (IS_ERR(crypto_info->aclk)) {
err = PTR_ERR(crypto_info->aclk);
goto err_crypto;
}
crypto_info->hclk = devm_clk_get(&pdev->dev, "hclk");
if (IS_ERR(crypto_info->hclk)) {
err = PTR_ERR(crypto_info->hclk);
goto err_crypto;
}
crypto_info->sclk = devm_clk_get(&pdev->dev, "sclk");
if (IS_ERR(crypto_info->sclk)) {
err = PTR_ERR(crypto_info->sclk);
goto err_crypto;
}
crypto_info->dmaclk = devm_clk_get(&pdev->dev, "apb_pclk");
if (IS_ERR(crypto_info->dmaclk)) {
err = PTR_ERR(crypto_info->dmaclk);
goto err_crypto;
}
crypto_info->irq = platform_get_irq(pdev, 0);
if (crypto_info->irq < 0) {
dev_warn(crypto_info->dev,
"control Interrupt is not available.\n");
err = crypto_info->irq;
goto err_crypto;
}
err = devm_request_irq(&pdev->dev, crypto_info->irq,
rk_crypto_irq_handle, IRQF_SHARED,
"rk-crypto", pdev);
if (err) {
dev_err(crypto_info->dev, "irq request failed.\n");
goto err_crypto;
}
crypto_info->dev = &pdev->dev;
platform_set_drvdata(pdev, crypto_info);
tasklet_init(&crypto_info->crypto_tasklet,
rk_crypto_tasklet_cb, (unsigned long)crypto_info);
crypto_init_queue(&crypto_info->queue, 50);
crypto_info->enable_clk = rk_crypto_enable_clk;
crypto_info->disable_clk = rk_crypto_disable_clk;
crypto_info->load_data = rk_load_data;
crypto_info->unload_data = rk_unload_data;
err = rk_crypto_register(crypto_info);
if (err) {
dev_err(dev, "err in register alg");
goto err_register_alg;
}
dev_info(dev, "Crypto Accelerator successfully registered\n");
return 0;
err_register_alg:
tasklet_kill(&crypto_info->crypto_tasklet);
err_crypto:
return err;
}
static int cns3xxx_probe(struct platform_device *pdev)
{
struct crypto_priv *cp;
int ret;
Csp1ConfigDevice();
ctx = Csp1AllocContext();
if (cpg) {
printk(KERN_ERR CNS3XXX_CRYPTO "Second crypto dev?\n");
return -EEXIST;
}
cp = kzalloc(sizeof(*cp), GFP_KERNEL);
if (!cp)
return -ENOMEM;
spin_lock_init(&cp->lock);
crypto_init_queue(&cp->queue, 50);
cp->max_req_size = 1024;
platform_set_drvdata(pdev, cp);
cpg = cp;
cp->queue_th = kthread_run(queue_manag, cp, "cns3xxx_crypto");
if (IS_ERR(cp->queue_th)) {
ret = PTR_ERR(cp->queue_th);
goto err_thread;
}
/*ret = request_irq(irq, crypto_int, IRQF_DISABLED, dev_name(&pdev->dev),
cp);
if (ret)
goto err_unmap_sram;*/
/*ret = crypto_register_alg(&cns3xxx_aes_alg_ecb);
if (ret)
goto err_reg;*/
ret = crypto_register_alg(&cns3xxx_aes_alg_cbc);
if (ret)
goto err_unreg_cbc;
/*
ret = crypto_register_ahash(&cns3xxx_sha1_alg);
if (ret == 0)
cpg->has_sha1 = 1;
else
printk(KERN_WARNING MV_CESA "Could not register sha1 driver\n");
ret = crypto_register_ahash(&mv_hmac_sha1_alg);
if (ret == 0) {
cpg->has_hmac_sha1 = 1;
} else {
printk(KERN_WARNING MV_CESA
"Could not register hmac-sha1 driver\n");
}
*/
return 0;
err_unreg_cbc:
crypto_unregister_alg(&cns3xxx_aes_alg_cbc);
err_thread:
kthread_stop(cp->queue_th);
iounmap(cp->reg);
kfree(cp);
cpg = NULL;
platform_set_drvdata(pdev, NULL);
return ret;
}
static int sahara_probe(struct platform_device *pdev)
{
struct sahara_dev *dev;
struct resource *res;
u32 version;
int irq;
int err;
int i;
dev = devm_kzalloc(&pdev->dev, sizeof(struct sahara_dev), GFP_KERNEL);
if (dev == NULL) {
dev_err(&pdev->dev, "unable to alloc data struct.\n");
return -ENOMEM;
}
dev->device = &pdev->dev;
platform_set_drvdata(pdev, dev);
/* Get the base address */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(dev->regs_base))
return PTR_ERR(dev->regs_base);
/* Get the IRQ */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get irq resource\n");
return irq;
}
err = devm_request_irq(&pdev->dev, irq, sahara_irq_handler,
0, dev_name(&pdev->dev), dev);
if (err) {
dev_err(&pdev->dev, "failed to request irq\n");
return err;
}
/* clocks */
dev->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(dev->clk_ipg)) {
dev_err(&pdev->dev, "Could not get ipg clock\n");
return PTR_ERR(dev->clk_ipg);
}
dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(dev->clk_ahb)) {
dev_err(&pdev->dev, "Could not get ahb clock\n");
return PTR_ERR(dev->clk_ahb);
}
/* Allocate HW descriptors */
dev->hw_desc[0] = dma_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
&dev->hw_phys_desc[0], GFP_KERNEL);
if (!dev->hw_desc[0]) {
dev_err(&pdev->dev, "Could not allocate hw descriptors\n");
return -ENOMEM;
}
dev->hw_desc[1] = dev->hw_desc[0] + 1;
dev->hw_phys_desc[1] = dev->hw_phys_desc[0] +
sizeof(struct sahara_hw_desc);
/* Allocate space for iv and key */
dev->key_base = dma_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128,
&dev->key_phys_base, GFP_KERNEL);
if (!dev->key_base) {
dev_err(&pdev->dev, "Could not allocate memory for key\n");
err = -ENOMEM;
goto err_key;
}
dev->iv_base = dev->key_base + AES_KEYSIZE_128;
dev->iv_phys_base = dev->key_phys_base + AES_KEYSIZE_128;
/* Allocate space for context: largest digest + message length field */
dev->context_base = dma_alloc_coherent(&pdev->dev,
SHA256_DIGEST_SIZE + 4,
&dev->context_phys_base, GFP_KERNEL);
if (!dev->context_base) {
dev_err(&pdev->dev, "Could not allocate memory for MDHA context\n");
err = -ENOMEM;
goto err_key;
}
/* Allocate space for HW links */
dev->hw_link[0] = dma_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
&dev->hw_phys_link[0], GFP_KERNEL);
if (!dev->hw_link[0]) {
dev_err(&pdev->dev, "Could not allocate hw links\n");
err = -ENOMEM;
goto err_link;
}
for (i = 1; i < SAHARA_MAX_HW_LINK; i++) {
dev->hw_phys_link[i] = dev->hw_phys_link[i - 1] +
sizeof(struct sahara_hw_link);
dev->hw_link[i] = dev->hw_link[i - 1] + 1;
}
crypto_init_queue(&dev->queue, SAHARA_QUEUE_LENGTH);
spin_lock_init(&dev->lock);
mutex_init(&dev->queue_mutex);
dev_ptr = dev;
dev->kthread = kthread_run(sahara_queue_manage, dev, "sahara_
