static int s5p_mfc_cmd_host2risc(int cmd, struct s5p_mfc_cmd_args *args)
{
int cur_cmd;
unsigned long timeout;
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* wait until host to risc command register becomes 'H2R_CMD_EMPTY' */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while waiting for hardware.\n");
return -EIO;
}
cur_cmd = s5p_mfc_read_reg(S5P_FIMV_HOST2RISC_CMD);
} while (cur_cmd != S5P_FIMV_H2R_CMD_EMPTY);
s5p_mfc_write_reg(args->arg[0], S5P_FIMV_HOST2RISC_ARG1);
s5p_mfc_write_reg(args->arg[1], S5P_FIMV_HOST2RISC_ARG2);
s5p_mfc_write_reg(args->arg[2], S5P_FIMV_HOST2RISC_ARG3);
s5p_mfc_write_reg(args->arg[3], S5P_FIMV_HOST2RISC_ARG4);
/* Issue the command */
s5p_mfc_write_reg(cmd, S5P_FIMV_HOST2RISC_CMD);
return 0;
}
void s5p_mfc_init_memctrl(struct s5p_mfc_dev *dev,
enum mfc_buf_usage_type buf_type)
{
struct s5p_mfc_extra_buf *fw_info;
fw_info = &dev->fw_info;
if (IS_MFCV6(dev)) {
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (buf_type == MFCBUF_DRM)
fw_info = &dev->drm_fw_info;
s5p_mfc_write_reg(dev, fw_info->ofs, S5P_FIMV_RISC_BASE_ADDRESS);
mfc_info_dev("[%d] Base Address : %08lx\n", buf_type, fw_info->ofs);
#else
s5p_mfc_write_reg(dev, dev->port_a, S5P_FIMV_RISC_BASE_ADDRESS);
mfc_debug(2, "Base Address : %08zu\n", dev->port_a);
#endif
} else {
/* channelA, port0 */
s5p_mfc_write_reg(dev, dev->port_a, S5P_FIMV_MC_DRAMBASE_ADR_A);
/* channelB, port1 */
s5p_mfc_write_reg(dev, dev->port_b, S5P_FIMV_MC_DRAMBASE_ADR_B);
mfc_debug(2, "Port A: %08zu, Port B: %08zu\n", dev->port_a, dev->port_b);
}
}
/* Open a new instance and get its number */
int s5p_mfc_open_inst_cmd(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_dev *dev;
int ret;
mfc_debug_enter();
if (!ctx) {
mfc_err("no mfc context to run\n");
return -EINVAL;
}
dev = ctx->dev;
mfc_debug(2, "Requested codec mode: %d\n", ctx->codec_mode);
s5p_mfc_write_reg(dev, ctx->codec_mode, S5P_FIMV_CODEC_TYPE);
s5p_mfc_write_reg(dev, ctx->ctx.ofs, S5P_FIMV_CONTEXT_MEM_ADDR);
s5p_mfc_write_reg(dev, ctx->ctx_buf_size, S5P_FIMV_CONTEXT_MEM_SIZE);
if (ctx->type == MFCINST_DECODER)
s5p_mfc_write_reg(dev, ctx->dec_priv->crc_enable,
S5P_FIMV_D_CRC_CTRL);
ret = s5p_mfc_cmd_host2risc(dev, S5P_FIMV_H2R_CMD_OPEN_INSTANCE, NULL);
mfc_debug_leave();
return ret;
}
int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
{
int ret;
mfc_debug_enter();
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
s5p_mfc_clock_on();
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err("Failed to reset MFC - timeout.\n");
return ret;
}
mfc_debug(2, "Done MFC reset...\n");
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Initialize firmware */
ret = s5p_mfc_wakeup_cmd(dev);
if (ret) {
mfc_err("Failed to send command to MFC - timeout.\n");
return ret;
}
/* 4. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Ok, now will write a command to wakeup the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_WAKEUP_RET)) {
mfc_err("Failed to load firmware\n");
return -EIO;
}
s5p_mfc_clock_off();
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_WAKEUP_RET) {
/* Failure. */
mfc_err("Failed to wakeup - error: %d"
" int: %d.\n",dev->int_err, dev->int_type);
return -EIO;
}
mfc_debug_leave();
return 0;
}
static inline void s5p_mfc_clear_cmds(struct s5p_mfc_dev *dev)
{
if (IS_MFCV6(dev)) {
/* Zero initialization should be done before RESET.
* Nothing to do here. */
} else {
s5p_mfc_write_reg(0xffffffff, S5P_FIMV_SI_CH0_INST_ID);
s5p_mfc_write_reg(0xffffffff, S5P_FIMV_SI_CH1_INST_ID);
s5p_mfc_write_reg(0, S5P_FIMV_RISC2HOST_CMD);
s5p_mfc_write_reg(0, S5P_FIMV_HOST2RISC_CMD);
}
}
int s5p_mfc_cmd_host2risc(int cmd, struct s5p_mfc_cmd_args *args)
{
mfc_debug(2, "Issue the command: %d\n", cmd);
/* Reset RISC2HOST command */
s5p_mfc_write_reg(0x0, S5P_FIMV_RISC2HOST_CMD);
/* Issue the command */
s5p_mfc_write_reg(cmd, S5P_FIMV_HOST2RISC_CMD);
s5p_mfc_write_reg(0x1, S5P_FIMV_HOST2RISC_INT);
return 0;
}
static inline void s5p_mfc_init_memctrl(struct s5p_mfc_dev *dev)
{
if (IS_MFCV6(dev)) {
s5p_mfc_write_reg(dev->port_a, S5P_FIMV_RISC_BASE_ADDRESS);
mfc_debug(2, "Base Address : %08x\n", dev->port_a);
} else {
/* channelA, port0 */
s5p_mfc_write_reg(dev->port_a, S5P_FIMV_MC_DRAMBASE_ADR_A);
/* channelB, port1 */
s5p_mfc_write_reg(dev->port_b, S5P_FIMV_MC_DRAMBASE_ADR_B);
mfc_debug(2, "Port A: %08x, Port B: %08x\n", dev->port_a, dev->port_b);
}
}
int s5p_mfc_cmd_host2risc(struct s5p_mfc_dev *dev, int cmd,
struct s5p_mfc_cmd_args *args)
{
mfc_debug(2, "Issue the command: %d\n", cmd);
MFC_TRACE_DEV(">> Issue cmd : %d\n", cmd);
/* Reset RISC2HOST command */
s5p_mfc_write_reg(dev, 0x0, S5P_FIMV_RISC2HOST_CMD);
/* Issue the command */
s5p_mfc_write_reg(dev, cmd, S5P_FIMV_HOST2RISC_CMD);
s5p_mfc_write_reg(dev, 0x1, S5P_FIMV_HOST2RISC_INT);
return 0;
}
int s5p_mfc_clock_on(struct s5p_mfc_dev *dev)
{
int ret = 0;
int state, val;
unsigned long flags;
dev->pm.clock_on_steps = 1;
MFC_TRACE_DEV("++ clock_on: Set clock rate(%d)\n", dev->curr_rate);
ret = clk_enable(dev->pm.clock);
if (ret < 0)
return ret;
if (dev->pm.base_type != MFCBUF_INVALID)
s5p_mfc_init_memctrl(dev, dev->pm.base_type);
dev->pm.clock_on_steps |= 0x1 << 1;
if (dev->curr_ctx_drm && dev->is_support_smc) {
spin_lock_irqsave(&dev->pm.clklock, flags);
mfc_debug(3, "Begin: enable protection\n");
ret = exynos_smc(SMC_PROTECTION_SET, 0,
dev->id, SMC_PROTECTION_ENABLE);
dev->pm.clock_on_steps |= 0x1 << 2;
if (!ret) {
printk("Protection Enable failed! ret(%u)\n", ret);
spin_unlock_irqrestore(&dev->pm.clklock, flags);
clk_disable(dev->pm.clock);
return -EACCES;
}
mfc_debug(3, "End: enable protection\n");
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
ret = s5p_mfc_mem_resume(dev->alloc_ctx[0]);
if (ret < 0) {
dev->pm.clock_on_steps |= 0x1 << 3;
clk_disable(dev->pm.clock);
return ret;
}
}
dev->pm.clock_on_steps |= 0x1 << 4;
if (IS_MFCV6(dev)) {
spin_lock_irqsave(&dev->pm.clklock, flags);
if ((atomic_inc_return(&dev->clk_ref) == 1) &&
FW_HAS_BUS_RESET(dev)) {
val = s5p_mfc_read_reg(dev, S5P_FIMV_MFC_BUS_RESET_CTRL);
val &= ~(0x1);
s5p_mfc_write_reg(dev, val, S5P_FIMV_MFC_BUS_RESET_CTRL);
}
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
atomic_inc_return(&dev->clk_ref);
}
dev->pm.clock_on_steps |= 0x1 << 5;
state = atomic_read(&dev->clk_ref);
mfc_debug(2, "+ %d\n", state);
MFC_TRACE_DEV("-- clock_on : ref state(%d)\n", state);
return 0;
}
int s5p_mfc_clock_on(struct s5p_mfc_dev *dev)
{
int ret = 0;
int state, val;
unsigned long flags;
#ifdef CONFIG_MFC_USE_BUS_DEVFREQ
MFC_TRACE_DEV("++ clock_on: Set clock rate(%d)\n", dev->curr_rate);
mutex_lock(&dev->curr_rate_lock);
s5p_mfc_clock_set_rate(dev, dev->curr_rate);
mutex_unlock(&dev->curr_rate_lock);
#endif
ret = clk_enable(dev->pm.clock);
if (ret < 0)
return ret;
if (dev->curr_ctx_drm && dev->is_support_smc) {
spin_lock_irqsave(&dev->pm.clklock, flags);
mfc_debug(3, "Begin: enable protection\n");
ret = exynos_smc(SMC_PROTECTION_SET, 0,
dev->id, SMC_PROTECTION_ENABLE);
if (!ret) {
printk("Protection Enable failed! ret(%u)\n", ret);
spin_unlock_irqrestore(&dev->pm.clklock, flags);
clk_disable(dev->pm.clock);
return ret;
}
mfc_debug(3, "End: enable protection\n");
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
ret = s5p_mfc_mem_resume(dev->alloc_ctx[0]);
if (ret < 0) {
clk_disable(dev->pm.clock);
return ret;
}
}
if (IS_MFCV6(dev)) {
spin_lock_irqsave(&dev->pm.clklock, flags);
if ((atomic_inc_return(&dev->clk_ref) == 1) &&
FW_HAS_BUS_RESET(dev)) {
val = s5p_mfc_read_reg(dev, S5P_FIMV_MFC_BUS_RESET_CTRL);
val &= ~(0x1);
s5p_mfc_write_reg(dev, val, S5P_FIMV_MFC_BUS_RESET_CTRL);
}
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
atomic_inc_return(&dev->clk_ref);
}
state = atomic_read(&dev->clk_ref);
mfc_debug(2, "+ %d\n", state);
MFC_TRACE_DEV("-- clock_on : ref state(%d)\n", state);
return 0;
}
int s5p_mfc_sys_init_cmd(struct s5p_mfc_dev *dev)
{
struct s5p_mfc_cmd_args h2r_args;
struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->buf;
int ret;
mfc_debug_enter();
s5p_mfc_alloc_dev_context_buffer(dev);
s5p_mfc_write_reg(dev->ctx_buf.ofs, S5P_FIMV_CONTEXT_MEM_ADDR);
s5p_mfc_write_reg(buf_size->dev_ctx, S5P_FIMV_CONTEXT_MEM_SIZE);
ret = s5p_mfc_cmd_host2risc(S5P_FIMV_H2R_CMD_SYS_INIT, &h2r_args);
mfc_debug_leave();
return ret;
}
void s5p_mfc_clock_off(struct s5p_mfc_dev *dev)
{
int state, val;
unsigned long timeout, flags;
int ret = 0;
if (IS_MFCV6(dev)) {
spin_lock_irqsave(&dev->pm.clklock, flags);
if ((atomic_dec_return(&dev->clk_ref) == 0) &&
FW_HAS_BUS_RESET(dev)) {
s5p_mfc_write_reg(dev, 0x1, S5P_FIMV_MFC_BUS_RESET_CTRL);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check bus status */
do {
if (time_after(jiffies, timeout)) {
mfc_err_dev("Timeout while resetting MFC.\n");
break;
}
val = s5p_mfc_read_reg(dev,
S5P_FIMV_MFC_BUS_RESET_CTRL);
} while ((val & 0x2) == 0);
}
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
atomic_dec_return(&dev->clk_ref);
}
state = atomic_read(&dev->clk_ref);
if (state < 0) {
mfc_err_dev("Clock state is wrong(%d)\n", state);
atomic_set(&dev->clk_ref, 0);
} else {
if (dev->curr_ctx_drm && dev->is_support_smc) {
mfc_debug(3, "Begin: disable protection\n");
spin_lock_irqsave(&dev->pm.clklock, flags);
ret = exynos_smc(SMC_PROTECTION_SET, 0,
dev->id, SMC_PROTECTION_DISABLE);
if (!ret) {
printk("Protection Disable failed! ret(%u)\n", ret);
spin_unlock_irqrestore(&dev->pm.clklock, flags);
clk_disable(dev->pm.clock);
return;
}
mfc_debug(3, "End: disable protection\n");
spin_unlock_irqrestore(&dev->pm.clklock, flags);
} else {
s5p_mfc_mem_suspend(dev->alloc_ctx[0]);
}
clk_disable(dev->pm.clock);
}
mfc_debug(2, "- %d\n", state);
}
/* Open a new instance and get its number */
int s5p_mfc_open_inst_cmd(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_cmd_args h2r_args;
struct s5p_mfc_dec *dec = ctx->dec_priv;
int ret;
mfc_debug_enter();
mfc_debug(2, "Requested codec mode: %d\n", ctx->codec_mode);
s5p_mfc_write_reg(ctx->codec_mode, S5P_FIMV_CODEC_TYPE);
s5p_mfc_write_reg(ctx->ctx.ofs, S5P_FIMV_CONTEXT_MEM_ADDR);
s5p_mfc_write_reg(ctx->ctx_buf_size, S5P_FIMV_CONTEXT_MEM_SIZE);
if (ctx->type == MFCINST_DECODER)
s5p_mfc_write_reg(dec->crc_enable, S5P_FIMV_D_CRC_CTRL);
ret = s5p_mfc_cmd_host2risc(S5P_FIMV_H2R_CMD_OPEN_INSTANCE, &h2r_args);
mfc_debug_leave();
return ret;
}
int s5p_mfc_sys_init_cmd(struct s5p_mfc_dev *dev,
enum mfc_buf_usage_type buf_type)
{
struct s5p_mfc_buf_size_v6 *buf_size;
struct s5p_mfc_extra_buf *ctx_buf, *dis_shm_buf;
int ret;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
buf_size = dev->variant->buf_size->buf;
ctx_buf = &dev->ctx_buf;
dis_shm_buf = &dev->dis_shm_buf;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (buf_type == MFCBUF_DRM) {
ctx_buf = &dev->ctx_buf_drm;
dis_shm_buf = &dev->dis_shm_buf_drm;
}
#endif
s5p_mfc_write_reg(dev, ctx_buf->ofs, S5P_FIMV_CONTEXT_MEM_ADDR);
s5p_mfc_write_reg(dev, buf_size->dev_ctx, S5P_FIMV_CONTEXT_MEM_SIZE);
if (IS_MFCv7X(dev)) {
s5p_mfc_write_reg(dev, dis_shm_buf->ofs,
S5P_FIMV_DIS_SHARED_MEM_ADDR);
mfc_debug(2, "Setting shared memory = 0x%x\n",
(unsigned int)dis_shm_buf->ofs);
}
ret = s5p_mfc_cmd_host2risc(dev, S5P_FIMV_H2R_CMD_SYS_INIT, NULL);
mfc_debug_leave();
return ret;
}
/* Close instance */
int s5p_mfc_close_inst_cmd(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_dev *dev = ctx->dev;
int ret;
mfc_debug_enter();
s5p_mfc_write_reg(dev, ctx->inst_no, S5P_FIMV_INSTANCE_ID);
ret = s5p_mfc_cmd_host2risc(dev, S5P_FIMV_H2R_CMD_CLOSE_INSTANCE, NULL);
mfc_debug_leave();
return ret;
}
/* Close instance */
int s5p_mfc_close_inst_cmd(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_cmd_args h2r_args;
int ret = 0;
mfc_debug_enter();
if (ctx->state != MFCINST_FREE) {
s5p_mfc_write_reg(ctx->inst_no, S5P_FIMV_INSTANCE_ID);
ret = s5p_mfc_cmd_host2risc(S5P_FIMV_H2R_CMD_CLOSE_INSTANCE,
&h2r_args);
} else {
ret = -EINVAL;
}
mfc_debug_leave();
return ret;
}
static inline int s5p_mfc_bus_reset(struct s5p_mfc_dev *dev)
{
unsigned int status;
unsigned long timeout;
/* Reset */
s5p_mfc_write_reg(0x1, S5P_FIMV_MFC_BUS_RESET_CTRL);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check bus status */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while resetting MFC.\n");
return -EIO;
}
status = s5p_mfc_read_reg(S5P_FIMV_MFC_BUS_RESET_CTRL);
} while ((status & 0x2) == 0);
return 0;
}
int s5p_mfc_clock_on(void)
{
int ret = 0;
int state, val;
struct s5p_mfc_dev *dev = platform_get_drvdata(to_platform_device(pm->device));
unsigned long flags;
#ifdef CONFIG_ARM_EXYNOS5410_BUS_DEVFREQ
s5p_mfc_clock_set_rate(dev, dev->curr_rate);
#endif
ret = clk_enable(pm->clock);
if (ret < 0)
return ret;
if (!dev->curr_ctx_drm) {
ret = s5p_mfc_mem_resume(dev->alloc_ctx[0]);
if (ret < 0) {
clk_disable(pm->clock);
return ret;
}
}
if (IS_MFCV6(dev)) {
spin_lock_irqsave(&pm->clklock, flags);
if ((atomic_inc_return(&clk_ref) == 1) &&
FW_HAS_BUS_RESET(dev)) {
val = s5p_mfc_read_reg(S5P_FIMV_MFC_BUS_RESET_CTRL);
val &= ~(0x1);
s5p_mfc_write_reg(val, S5P_FIMV_MFC_BUS_RESET_CTRL);
}
spin_unlock_irqrestore(&pm->clklock, flags);
} else {
atomic_inc_return(&clk_ref);
}
state = atomic_read(&clk_ref);
mfc_debug(3, "+ %d", state);
return 0;
}
void s5p_mfc_clock_off(void)
{
int state, val;
unsigned long timeout, flags;
struct s5p_mfc_dev *dev = platform_get_drvdata(to_platform_device(pm->device));
if (IS_MFCV6(dev)) {
spin_lock_irqsave(&pm->clklock, flags);
if ((atomic_dec_return(&clk_ref) == 0) &&
FW_HAS_BUS_RESET(dev)) {
s5p_mfc_write_reg(0x1, S5P_FIMV_MFC_BUS_RESET_CTRL);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check bus status */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while resetting MFC.\n");
break;
}
val = s5p_mfc_read_reg(
S5P_FIMV_MFC_BUS_RESET_CTRL);
} while ((val & 0x2) == 0);
}
spin_unlock_irqrestore(&pm->clklock, flags);
} else {
atomic_dec_return(&clk_ref);
}
state = atomic_read(&clk_ref);
if (state < 0) {
mfc_err("Clock state is wrong(%d)\n", state);
atomic_set(&clk_ref, 0);
} else {
if (!dev->curr_ctx_drm)
s5p_mfc_mem_suspend(dev->alloc_ctx[0]);
clk_disable(pm->clock);
}
}
/* Reset the device */
static int s5p_mfc_reset(struct s5p_mfc_dev *dev)
{
int i;
unsigned int status;
unsigned long timeout;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
/* Stop procedure */
/* Reset VI */
/*
s5p_mfc_write_reg(0x3f7, S5P_FIMV_SW_RESET);
*/
if (IS_MFCV6(dev)) {
/* Zero Initialization of MFC registers */
s5p_mfc_write_reg(0, S5P_FIMV_RISC2HOST_CMD);
s5p_mfc_write_reg(0, S5P_FIMV_HOST2RISC_CMD);
s5p_mfc_write_reg(0, S5P_FIMV_FW_VERSION);
for (i = 0; i < S5P_FIMV_REG_CLEAR_COUNT; i++)
s5p_mfc_write_reg(0, S5P_FIMV_REG_CLEAR_BEGIN + (i*4));
if (IS_MFCv6X(dev))
if (s5p_mfc_bus_reset(dev))
return -EIO;
s5p_mfc_write_reg(0, S5P_FIMV_RISC_ON);
s5p_mfc_write_reg(0x1FFF, S5P_FIMV_MFC_RESET);
s5p_mfc_write_reg(0, S5P_FIMV_MFC_RESET);
} else {
s5p_mfc_write_reg(0x3f6, S5P_FIMV_SW_RESET); /* reset RISC */
s5p_mfc_write_reg(0x3e2, S5P_FIMV_SW_RESET); /* All reset except for MC */
mdelay(10);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check MC status */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while resetting MFC.\n");
return -EIO;
}
status = s5p_mfc_read_reg(S5P_FIMV_MC_STATUS);
} while (status & 0x3);
s5p_mfc_write_reg(0x0, S5P_FIMV_SW_RESET);
s5p_mfc_write_reg(0x3fe, S5P_FIMV_SW_RESET);
}
mfc_debug_leave();
return 0;
}
int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
{
enum mfc_buf_usage_type buf_type;
int ret;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
mfc_info_dev("curr_ctx_drm:%d\n", dev->curr_ctx_drm);
dev->wakeup_status = 1;
/* Set clock source again after wake up */
s5p_mfc_set_clock_parent(dev);
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
s5p_mfc_clock_on(dev);
dev->wakeup_status = 0;
/* SYSMMU default block mode (not enalble/disable) */
if (dev->curr_ctx_drm) {
ret = s5p_mfc_mem_resume(dev->alloc_ctx[0]);
if (ret < 0)
mfc_err_dev("Failed to attach iommu\n");
s5p_mfc_mem_suspend(dev->alloc_ctx[0]);
}
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err_dev("Failed to reset MFC - timeout.\n");
goto err_mfc_wakeup;
}
mfc_debug(2, "Done MFC reset...\n");
if (dev->curr_ctx_drm)
buf_type = MFCBUF_DRM;
else
buf_type = MFCBUF_NORMAL;
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev, buf_type);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Initialize firmware */
if (!FW_WAKEUP_AFTER_RISC_ON(dev))
ret = s5p_mfc_wakeup_cmd(dev);
if (ret) {
mfc_err_dev("Failed to send command to MFC - timeout.\n");
goto err_mfc_wakeup;
}
/* 4. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(dev, 0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(dev, 0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Will now wait for completion of firmware transfer.\n");
if (FW_WAKEUP_AFTER_RISC_ON(dev)) {
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_FW_STATUS_RET)) {
mfc_err_dev("Failed to load firmware.\n");
s5p_mfc_clean_dev_int_flags(dev);
ret = -EIO;
goto err_mfc_wakeup;
}
}
if (FW_WAKEUP_AFTER_RISC_ON(dev))
ret = s5p_mfc_wakeup_cmd(dev);
mfc_debug(2, "Ok, now will write a command to wakeup the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_WAKEUP_RET)) {
mfc_err_dev("Failed to load firmware\n");
ret = -EIO;
goto err_mfc_wakeup;
}
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_WAKEUP_RET) {
/* Failure. */
mfc_err_dev("Failed to wakeup - error: %d"
" int: %d.\n", dev->int_err, dev->int_type);
ret = -EIO;
goto err_mfc_wakeup;
}
err_mfc_wakeup:
s5p_mfc_clock_off(dev);
mfc_debug_leave();
return 0;
}
/* Initialize hardware */
int mfc_init_hw(struct s5p_mfc_dev *dev, enum mfc_buf_usage_type buf_type)
{
char fimv_info;
int fw_ver;
int ret = 0;
int curr_ctx_backup;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
curr_ctx_backup = dev->curr_ctx_drm;
dev->sys_init_status = 0;
/* RMVME: */
if (!dev->fw_info.alloc)
return -EINVAL;
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
/* At init time, do not call secure API */
if (buf_type == MFCBUF_NORMAL)
dev->curr_ctx_drm = 0;
else if (buf_type == MFCBUF_DRM)
dev->curr_ctx_drm = 1;
ret = s5p_mfc_clock_on(dev);
if (ret) {
mfc_err_dev("Failed to enable clock before reset(%d)\n", ret);
dev->curr_ctx_drm = curr_ctx_backup;
return ret;
}
dev->sys_init_status = 1;
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err_dev("Failed to reset MFC - timeout.\n");
goto err_init_hw;
}
mfc_debug(2, "Done MFC reset...\n");
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev, buf_type);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(dev, 0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(dev, 0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Will now wait for completion of firmware transfer.\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_FW_STATUS_RET)) {
mfc_err_dev("Failed to load firmware.\n");
s5p_mfc_clean_dev_int_flags(dev);
ret = -EIO;
goto err_init_hw;
}
s5p_mfc_clean_dev_int_flags(dev);
/* 4. Initialize firmware */
ret = s5p_mfc_sys_init_cmd(dev, buf_type);
if (ret) {
mfc_err_dev("Failed to send command to MFC - timeout.\n");
goto err_init_hw;
}
mfc_debug(2, "Ok, now will write a command to init the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_SYS_INIT_RET)) {
mfc_err_dev("Failed to load firmware\n");
ret = -EIO;
goto err_init_hw;
}
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_SYS_INIT_RET) {
/* Failure. */
mfc_err_dev("Failed to init firmware - error: %d"
" int: %d.\n", dev->int_err, dev->int_type);
ret = -EIO;
goto err_init_hw;
}
fimv_info = MFC_GET_REG(SYS_FW_FIMV_INFO);
if (fimv_info != 'D' && fimv_info != 'E')
fimv_info = 'N';
mfc_info_dev("MFC v%x.%x, F/W: %02xyy, %02xmm, %02xdd (%c)\n",
MFC_VER_MAJOR(dev),
MFC_VER_MINOR(dev),
MFC_GET_REG(SYS_FW_VER_YEAR),
MFC_GET_REG(SYS_FW_VER_MONTH),
MFC_GET_REG(SYS_FW_VER_DATE),
fimv_info);
dev->fw.date = MFC_GET_REG(SYS_FW_VER_ALL);
/* Check MFC version and F/W version */
if (IS_MFCV6(dev) && FW_HAS_VER_INFO(dev)) {
fw_ver = MFC_GET_REG(SYS_MFC_VER);
if (fw_ver != mfc_version(dev)) {
mfc_err_dev("Invalid F/W version(0x%x) for MFC H/W(0x%x)\n",
fw_ver, mfc_version(dev));
ret = -EIO;
goto err_init_hw;
}
}
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
/* Cache flush for base address change */
if (FW_HAS_BASE_CHANGE(dev)) {
s5p_mfc_clean_dev_int_flags(dev);
s5p_mfc_cmd_host2risc(dev, S5P_FIMV_CH_CACHE_FLUSH, NULL);
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_CACHE_FLUSH_RET)) {
mfc_err_dev("Failed to flush cache\n");
ret = -EIO;
goto err_init_hw;
}
if (buf_type == MFCBUF_DRM && !curr_ctx_backup) {
s5p_mfc_clock_off(dev);
dev->curr_ctx_drm = curr_ctx_backup;
s5p_mfc_clock_on_with_base(dev, MFCBUF_NORMAL);
} else if (buf_type == MFCBUF_NORMAL && curr_ctx_backup) {
s5p_mfc_init_memctrl(dev, MFCBUF_DRM);
}
}
#endif
err_init_hw:
s5p_mfc_clock_off(dev);
dev->curr_ctx_drm = curr_ctx_backup;
mfc_debug_leave();
return ret;
}
/* Initialize hardware */
int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
{
int ret;
mfc_debug_enter();
/* RMVME: */
if (!s5p_mfc_bitproc_buf)
return -EINVAL;
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
s5p_mfc_clock_on();
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err("Failed to reset MFC - timeout.\n");
return ret;
}
mfc_debug(2, "Done MFC reset...\n");
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
/* 3. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Will now wait for completion of firmware transfer.\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_FW_STATUS_RET)) {
mfc_err("Failed to load firmware.\n");
s5p_mfc_clean_dev_int_flags(dev);
return -EIO;
}
s5p_mfc_clean_dev_int_flags(dev);
/* 4. Initialize firmware */
ret = s5p_mfc_sys_init_cmd(dev);
if (ret) {
mfc_err("Failed to send command to MFC - timeout.\n");
return ret;
}
mfc_debug(2, "Ok, now will write a command to init the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_SYS_INIT_RET)) {
mfc_err("Failed to load firmware\n");
return -EIO;
}
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_SYS_INIT_RET) {
/* Failure. */
mfc_err("Failed to init firmware - error: %d"
" int: %d.\n",dev->int_err, dev->int_type);
return -EIO;
}
mfc_info("MFC F/W version : %02xyy, %02xmm, %02xdd\n",
MFC_GET_REG(SYS_FW_VER_YEAR),
MFC_GET_REG(SYS_FW_VER_MONTH),
MFC_GET_REG(SYS_FW_VER_DATE));
s5p_mfc_clock_off();
mfc_debug_leave();
return 0;
}
int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
{
int ret;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
s5p_mfc_clock_on(dev);
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err_dev("Failed to reset MFC - timeout.\n");
goto err_mfc_wakeup;
}
mfc_debug(2, "Done MFC reset...\n");
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev, MFCBUF_NORMAL);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Initialize firmware */
if (!IS_OVER_MFCv78(dev))
ret = s5p_mfc_wakeup_cmd(dev);
if (ret) {
mfc_err_dev("Failed to send command to MFC - timeout.\n");
goto err_mfc_wakeup;
}
/* 4. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(dev, 0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(dev, 0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Will now wait for completion of firmware transfer.\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_FW_STATUS_RET)) {
mfc_err_dev("Failed to load firmware.\n");
s5p_mfc_clean_dev_int_flags(dev);
ret = -EIO;
goto err_mfc_wakeup;
}
if (IS_OVER_MFCv78(dev))
ret = s5p_mfc_wakeup_cmd(dev);
mfc_debug(2, "Ok, now will write a command to wakeup the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_WAKEUP_RET)) {
mfc_err_dev("Failed to load firmware\n");
ret = -EIO;
goto err_mfc_wakeup;
}
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_WAKEUP_RET) {
/* Failure. */
mfc_err_dev("Failed to wakeup - error: %d"
" int: %d.\n", dev->int_err, dev->int_type);
ret = -EIO;
goto err_mfc_wakeup;
}
err_mfc_wakeup:
s5p_mfc_clock_off(dev);
mfc_debug_leave();
return 0;
}
/* Initialize hardware */
int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
{
char fimv_info;
int fw_ver;
int ret = 0;
mfc_debug_enter();
if (!dev) {
mfc_err("no mfc device to run\n");
return -EINVAL;
}
/* RMVME: */
if (!s5p_mfc_bitproc_buf)
return -EINVAL;
/* 0. MFC reset */
mfc_debug(2, "MFC reset...\n");
s5p_mfc_clock_on();
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err("Failed to reset MFC - timeout.\n");
goto err_init_hw;
}
mfc_debug(2, "Done MFC reset...\n");
/* 1. Set DRAM base Addr */
s5p_mfc_init_memctrl(dev);
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Release reset signal to the RISC */
if (IS_MFCV6(dev))
s5p_mfc_write_reg(0x1, S5P_FIMV_RISC_ON);
else
s5p_mfc_write_reg(0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Will now wait for completion of firmware transfer.\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_FW_STATUS_RET)) {
mfc_err("Failed to load firmware.\n");
s5p_mfc_clean_dev_int_flags(dev);
ret = -EIO;
goto err_init_hw;
}
s5p_mfc_clean_dev_int_flags(dev);
/* 4. Initialize firmware */
ret = s5p_mfc_sys_init_cmd(dev);
if (ret) {
mfc_err("Failed to send command to MFC - timeout.\n");
goto err_init_hw;
}
mfc_debug(2, "Ok, now will write a command to init the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_FIMV_R2H_CMD_SYS_INIT_RET)) {
mfc_err("Failed to load firmware\n");
ret = -EIO;
goto err_init_hw;
}
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_FIMV_R2H_CMD_SYS_INIT_RET) {
/* Failure. */
mfc_err("Failed to init firmware - error: %d"
" int: %d.\n", dev->int_err, dev->int_type);
ret = -EIO;
goto err_init_hw;
}
fimv_info = MFC_GET_REG(SYS_FW_FIMV_INFO);
if (fimv_info != 'D' && fimv_info != 'E')
fimv_info = 'N';
mfc_info("MFC v%x.%x, F/W: %02xyy, %02xmm, %02xdd (%c)\n",
MFC_VER_MAJOR(dev),
MFC_VER_MINOR(dev),
MFC_GET_REG(SYS_FW_VER_YEAR),
MFC_GET_REG(SYS_FW_VER_MONTH),
MFC_GET_REG(SYS_FW_VER_DATE),
fimv_info);
dev->fw.date = MFC_GET_REG(SYS_FW_VER_ALL);
/* Check MFC version and F/W version */
if (IS_MFCV6(dev) && FW_HAS_VER_INFO(dev)) {
fw_ver = MFC_GET_REG(SYS_MFC_VER);
if (fw_ver != mfc_version(dev)) {
mfc_err("Invalid F/W version(0x%x) for MFC H/W(0x%x)\n",
fw_ver, mfc_version(dev));
ret = -EIO;
goto err_init_hw;
}
}
err_init_hw:
s5p_mfc_clock_off();
mfc_debug_leave();
return ret;
}
/* Reset the device */
static int s5p_mfc_reset(struct s5p_mfc_dev *dev)
{
int i;
unsigned int status;
unsigned long timeout;
mfc_debug_enter();
/* Stop procedure */
/* FIXME: F/W can be access invalid address */
/* Reset VI */
/*
s5p_mfc_write_reg(0x3f7, S5P_FIMV_SW_RESET);
*/
if (IS_MFCV6(dev)) {
/* Reset IP */
s5p_mfc_write_reg(0xFEE, S5P_FIMV_MFC_RESET); /* except RISC, reset */
s5p_mfc_write_reg(0x0, S5P_FIMV_MFC_RESET); /* reset release */
/* Zero Initialization of MFC registers */
s5p_mfc_write_reg(0, S5P_FIMV_RISC2HOST_CMD);
s5p_mfc_write_reg(0, S5P_FIMV_HOST2RISC_CMD);
s5p_mfc_write_reg(0, S5P_FIMV_FW_VERSION);
for (i = 0; i < S5P_FIMV_REG_CLEAR_COUNT; i++)
s5p_mfc_write_reg(0, S5P_FIMV_REG_CLEAR_BEGIN + (i*4));
/* Reset */
s5p_mfc_write_reg(0x1, S5P_FIMV_MFC_BUS_RESET_CTRL);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check bus status */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while resetting MFC.\n");
return -EIO;
}
status = s5p_mfc_read_reg(S5P_FIMV_MFC_BUS_RESET_CTRL);
} while ((status & 0x2) == 0);
s5p_mfc_write_reg(0, S5P_FIMV_RISC_ON);
s5p_mfc_write_reg(0x1FFF, S5P_FIMV_MFC_RESET);
s5p_mfc_write_reg(0, S5P_FIMV_MFC_RESET);
} else {
s5p_mfc_write_reg(0x3f6, S5P_FIMV_SW_RESET); /* reset RISC */
s5p_mfc_write_reg(0x3e2, S5P_FIMV_SW_RESET); /* All reset except for MC */
mdelay(10);
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* Check MC status */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while resetting MFC.\n");
return -EIO;
}
status = s5p_mfc_read_reg(S5P_FIMV_MC_STATUS);
} while (status & 0x3);
s5p_mfc_write_reg(0x0, S5P_FIMV_SW_RESET);
s5p_mfc_write_reg(0x3fe, S5P_FIMV_SW_RESET);
}
mfc_debug_leave();
return 0;
}
