#include <plat/dma.h>
#include <plat/mcbsp.h>
+#include <plat/omap_device.h>
+#include <linux/pm_runtime.h>
/* XXX These "sideways" includes are a sign that something is wrong */
#include "../mach-omap2/cm2xxx_3xxx.h"
}
EXPORT_SYMBOL(omap_mcbsp_config);
+/**
+ * omap_mcbsp_dma_params - returns the dma channel number
+ * @id - mcbsp id
+ * @stream - indicates the direction of data flow (rx or tx)
+ *
+ * Returns the dma channel number for the rx channel or tx channel
+ * based on the value of @stream for the requested mcbsp given by @id
+ */
+int omap_mcbsp_dma_ch_params(unsigned int id, unsigned int stream)
+{
+ struct omap_mcbsp *mcbsp;
+
+ if (!omap_mcbsp_check_valid_id(id)) {
+ printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+ return -ENODEV;
+ }
+ mcbsp = id_to_mcbsp_ptr(id);
+
+ if (stream)
+ return mcbsp->dma_rx_sync;
+ else
+ return mcbsp->dma_tx_sync;
+}
+EXPORT_SYMBOL(omap_mcbsp_dma_ch_params);
+
+/**
+ * omap_mcbsp_dma_reg_params - returns the address of mcbsp data register
+ * @id - mcbsp id
+ * @stream - indicates the direction of data flow (rx or tx)
+ *
+ * Returns the address of mcbsp data transmit register or data receive register
+ * to be used by DMA for transferring/receiving data based on the value of
+ * @stream for the requested mcbsp given by @id
+ */
+int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream)
+{
+ struct omap_mcbsp *mcbsp;
+ int data_reg;
+
+ if (!omap_mcbsp_check_valid_id(id)) {
+ printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+ return -ENODEV;
+ }
+ mcbsp = id_to_mcbsp_ptr(id);
+
+ data_reg = mcbsp->phys_dma_base;
+
+ if (mcbsp->mcbsp_config_type < MCBSP_CONFIG_TYPE2) {
+ if (stream)
+ data_reg += OMAP_MCBSP_REG_DRR1;
+ else
+ data_reg += OMAP_MCBSP_REG_DXR1;
+ } else {
+ if (stream)
+ data_reg += OMAP_MCBSP_REG_DRR;
+ else
+ data_reg += OMAP_MCBSP_REG_DXR;
+ }
+
+ return data_reg;
+}
+EXPORT_SYMBOL(omap_mcbsp_dma_reg_params);
+
#ifdef CONFIG_ARCH_OMAP3
+static struct omap_device *find_omap_device_by_dev(struct device *dev)
+{
+ struct platform_device *pdev = container_of(dev,
+ struct platform_device, dev);
+ return container_of(pdev, struct omap_device, pdev);
+}
+
static void omap_st_on(struct omap_mcbsp *mcbsp)
{
unsigned int w;
+ struct omap_device *od;
+
+ od = find_omap_device_by_dev(mcbsp->dev);
/*
* Sidetone uses McBSP ICLK - which must not idle when sidetones
w = MCBSP_READ(mcbsp, SSELCR);
MCBSP_WRITE(mcbsp, SSELCR, w | SIDETONEEN);
- w = MCBSP_ST_READ(mcbsp, SYSCONFIG);
- MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w & ~(ST_AUTOIDLE));
-
/* Enable Sidetone from Sidetone Core */
w = MCBSP_ST_READ(mcbsp, SSELCR);
MCBSP_ST_WRITE(mcbsp, SSELCR, w | ST_SIDETONEEN);
static void omap_st_off(struct omap_mcbsp *mcbsp)
{
unsigned int w;
+ struct omap_device *od;
+
+ od = find_omap_device_by_dev(mcbsp->dev);
w = MCBSP_ST_READ(mcbsp, SSELCR);
MCBSP_ST_WRITE(mcbsp, SSELCR, w & ~(ST_SIDETONEEN));
- w = MCBSP_ST_READ(mcbsp, SYSCONFIG);
- MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE);
-
w = MCBSP_READ(mcbsp, SSELCR);
MCBSP_WRITE(mcbsp, SSELCR, w & ~(SIDETONEEN));
static void omap_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir)
{
u16 val, i;
+ struct omap_device *od;
- val = MCBSP_ST_READ(mcbsp, SYSCONFIG);
- MCBSP_ST_WRITE(mcbsp, SYSCONFIG, val & ~(ST_AUTOIDLE));
+ od = find_omap_device_by_dev(mcbsp->dev);
val = MCBSP_ST_READ(mcbsp, SSELCR);
{
u16 w;
struct omap_mcbsp_st_data *st_data = mcbsp->st_data;
+ struct omap_device *od;
- w = MCBSP_ST_READ(mcbsp, SYSCONFIG);
- MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w & ~(ST_AUTOIDLE));
+ od = find_omap_device_by_dev(mcbsp->dev);
w = MCBSP_ST_READ(mcbsp, SSELCR);
static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp)
{
+ struct omap_device *od;
+
+ od = find_omap_device_by_dev(mcbsp->dev);
/*
* Enable wakup behavior, smart idle and all wakeups
* REVISIT: some wakeups may be unnecessary
*/
if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- u16 syscon;
-
- syscon = MCBSP_READ(mcbsp, SYSCON);
- syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03));
-
- if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) {
- syscon |= (ENAWAKEUP | SIDLEMODE(0x02) |
- CLOCKACTIVITY(0x02));
- MCBSP_WRITE(mcbsp, WAKEUPEN, XRDYEN | RRDYEN);
- } else {
- syscon |= SIDLEMODE(0x01);
- }
-
- MCBSP_WRITE(mcbsp, SYSCON, syscon);
+ MCBSP_WRITE(mcbsp, WAKEUPEN, XRDYEN | RRDYEN);
}
}
static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp)
{
+ struct omap_device *od;
+
+ od = find_omap_device_by_dev(mcbsp->dev);
+
/*
* Disable wakup behavior, smart idle and all wakeups
*/
if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- u16 syscon;
-
- syscon = MCBSP_READ(mcbsp, SYSCON);
- syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03));
/*
* HW bug workaround - If no_idle mode is taken, we need to
* go to smart_idle before going to always_idle, or the
* device will not hit retention anymore.
*/
- syscon |= SIDLEMODE(0x02);
- MCBSP_WRITE(mcbsp, SYSCON, syscon);
-
- syscon &= ~(SIDLEMODE(0x03));
- MCBSP_WRITE(mcbsp, SYSCON, syscon);
MCBSP_WRITE(mcbsp, WAKEUPEN, 0);
}
if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->request)
mcbsp->pdata->ops->request(id);
- clk_enable(mcbsp->iclk);
- clk_enable(mcbsp->fclk);
+ pm_runtime_get_sync(mcbsp->dev);
/* Do procedure specific to omap34xx arch, if applicable */
omap34xx_mcbsp_request(mcbsp);
/* Do procedure specific to omap34xx arch, if applicable */
omap34xx_mcbsp_free(mcbsp);
- clk_disable(mcbsp->fclk);
- clk_disable(mcbsp->iclk);
+ pm_runtime_put_sync(mcbsp->dev);
spin_lock(&mcbsp->lock);
mcbsp->free = true;
/* Do procedure specific to omap34xx arch, if applicable */
omap34xx_mcbsp_free(mcbsp);
- clk_disable(mcbsp->fclk);
- clk_disable(mcbsp->iclk);
+ pm_runtime_put_sync(mcbsp->dev);
if (mcbsp->io_type == OMAP_MCBSP_IRQ_IO) {
/* Free IRQs */
/* resend */
return -1;
} else {
- /* wait for recieve confirmation */
+ /* wait for receive confirmation */
int attemps = 0;
while (!(MCBSP_READ(mcbsp, SPCR1) & RRDY)) {
if (attemps++ > 1000) {
static int __devinit omap_st_add(struct omap_mcbsp *mcbsp)
{
- struct omap_mcbsp_platform_data *pdata = mcbsp->pdata;
+ struct platform_device *pdev;
+ struct resource *res;
struct omap_mcbsp_st_data *st_data;
int err;
goto err1;
}
- st_data->io_base_st = ioremap(pdata->phys_base_st, SZ_4K);
+ pdev = container_of(mcbsp->dev, struct platform_device, dev);
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone");
+ st_data->io_base_st = ioremap(res->start, resource_size(res));
if (!st_data->io_base_st) {
err = -ENOMEM;
goto err2;
struct omap_mcbsp_platform_data *pdata = pdev->dev.platform_data;
struct omap_mcbsp *mcbsp;
int id = pdev->id - 1;
+ struct resource *res;
int ret = 0;
if (!pdata) {
mcbsp->dma_tx_lch = -1;
mcbsp->dma_rx_lch = -1;
- mcbsp->phys_base = pdata->phys_base;
- mcbsp->io_base = ioremap(pdata->phys_base, SZ_4K);
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu");
+ if (!res) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "%s:mcbsp%d has invalid memory"
+ "resource\n", __func__, pdev->id);
+ ret = -ENOMEM;
+ goto exit;
+ }
+ }
+ mcbsp->phys_base = res->start;
+ omap_mcbsp_cache_size = resource_size(res);
+ mcbsp->io_base = ioremap(res->start, resource_size(res));
if (!mcbsp->io_base) {
ret = -ENOMEM;
goto err_ioremap;
}
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dma");
+ if (!res)
+ mcbsp->phys_dma_base = mcbsp->phys_base;
+ else
+ mcbsp->phys_dma_base = res->start;
+
/* Default I/O is IRQ based */
mcbsp->io_type = OMAP_MCBSP_IRQ_IO;
- mcbsp->tx_irq = pdata->tx_irq;
- mcbsp->rx_irq = pdata->rx_irq;
- mcbsp->dma_rx_sync = pdata->dma_rx_sync;
- mcbsp->dma_tx_sync = pdata->dma_tx_sync;
- mcbsp->iclk = clk_get(&pdev->dev, "ick");
- if (IS_ERR(mcbsp->iclk)) {
- ret = PTR_ERR(mcbsp->iclk);
- dev_err(&pdev->dev, "unable to get ick: %d\n", ret);
- goto err_iclk;
+ mcbsp->tx_irq = platform_get_irq_byname(pdev, "tx");
+ mcbsp->rx_irq = platform_get_irq_byname(pdev, "rx");
+
+ /* From OMAP4 there will be a single irq line */
+ if (mcbsp->tx_irq == -ENXIO)
+ mcbsp->tx_irq = platform_get_irq(pdev, 0);
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
+ if (!res) {
+ dev_err(&pdev->dev, "%s:mcbsp%d has invalid rx DMA channel\n",
+ __func__, pdev->id);
+ ret = -ENODEV;
+ goto err_res;
+ }
+ mcbsp->dma_rx_sync = res->start;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
+ if (!res) {
+ dev_err(&pdev->dev, "%s:mcbsp%d has invalid tx DMA channel\n",
+ __func__, pdev->id);
+ ret = -ENODEV;
+ goto err_res;
}
+ mcbsp->dma_tx_sync = res->start;
mcbsp->fclk = clk_get(&pdev->dev, "fck");
if (IS_ERR(mcbsp->fclk)) {
ret = PTR_ERR(mcbsp->fclk);
dev_err(&pdev->dev, "unable to get fck: %d\n", ret);
- goto err_fclk;
+ goto err_res;
}
mcbsp->pdata = pdata;
mcbsp->dev = &pdev->dev;
mcbsp_ptr[id] = mcbsp;
+ mcbsp->mcbsp_config_type = pdata->mcbsp_config_type;
platform_set_drvdata(pdev, mcbsp);
+ pm_runtime_enable(mcbsp->dev);
/* Initialize mcbsp properties for OMAP34XX if needed / applicable */
omap34xx_device_init(mcbsp);
return 0;
-err_fclk:
- clk_put(mcbsp->iclk);
-err_iclk:
+err_res:
iounmap(mcbsp->io_base);
err_ioremap:
kfree(mcbsp);
omap34xx_device_exit(mcbsp);
clk_put(mcbsp->fclk);
- clk_put(mcbsp->iclk);
iounmap(mcbsp->io_base);
kfree(mcbsp);
git.openpandora.org / pandora-kernel.git / blobdiff