stm32_hrtim: add character driver
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raiden00pl
parent
fe813545e8
commit
de8cd6c870
@ -45,7 +45,6 @@
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#include <debug.h>
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#include <arch/board/board.h>
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#include <nuttx/drivers/hrtim.h>
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#include "chip.h"
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#include "stm32.h"
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@ -248,7 +247,6 @@ struct stm32_hrtim_slave_priv_s
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struct stm32_hrtim_s
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{
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uint32_t base; /* Base adress of HRTIM block */
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FAR const struct hrtim_ops_s *ops; /* */
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struct stm32_hrtim_tim_s *master; /* Master Timer */
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#ifdef CONFIG_STM32_HRTIM_TIMA
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struct stm32_hrtim_tim_s *tima; /* HRTIM Timer A */
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@ -271,6 +269,12 @@ struct stm32_hrtim_s
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* Private Function Prototypes
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****************************************************************************/
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/* HRTIM Driver Methods */
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static int stm32_hrtim_open(FAR struct file *filep);
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static int stm32_hrtim_close(FAR struct file *filep);
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static int stm32_hrtim_ioctl(FAR struct file *filep, int cmd, unsigned long arg);
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/* HRTIM Register access */
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#ifdef HRTIM_HAVE_CLK_FROM_PLL
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@ -294,10 +298,6 @@ static uint32_t hrtim_tim_getreg(FAR struct stm32_hrtim_s *priv, uint8_t index,
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static FAR struct stm32_hrtim_tim_s *hrtim_tim_get(FAR struct stm32_hrtim_s *priv,
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uint8_t index);
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/* HRTIM Driver Methods */
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static int hrtim_ioctl(FAR struct hrtim_dev_s *dev, int cmd, unsigned long arg);
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/* Configuration */
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static int hrtim_dll_cal(FAR struct stm32_hrtim_s *priv);
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@ -338,11 +338,20 @@ static int stm32_hrtimconfig(FAR struct stm32_hrtim_s *priv);
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* Private Data
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****************************************************************************/
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/* HRTIM interface operations */
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static const struct hrtim_ops_s g_hrtimops =
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static const struct file_operations hrtim_fops =
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{
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.ho_ioctl = hrtim_ioctl,
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stm32_hrtim_open, /* open */
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stm32_hrtim_close, /* close */
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NULL, /* read */
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NULL, /* write */
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NULL, /* seek */
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stm32_hrtim_ioctl /* ioctl */
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#ifndef CONFIG_DISABLE_POLL
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, NULL /* poll */
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#endif
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#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
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, NULL /* unlink */
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#endif
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};
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/* Master Timer data */
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@ -439,7 +448,6 @@ static struct stm32_hrtim_s g_hrtim1priv =
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struct hrtim_dev_s g_hrtim1dev =
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{
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.hd_ops = &g_hrtimops,
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.hd_priv = &g_hrtim1priv,
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};
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@ -447,6 +455,73 @@ struct hrtim_dev_s g_hrtim1dev =
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_hrtim_open
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*
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* Description:
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* This function is called whenever the HRTIM device is opened.
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*
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****************************************************************************/
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static int stm32_hrtim_open(FAR struct file *filep)
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{
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#warning "stm32_hrtim_open: missing logic"
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return OK;
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}
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/****************************************************************************
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* Name: stm32_hrtim_close
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*
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* Description:
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* This function is called when the HRTIM device is closed.
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*
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****************************************************************************/
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static int stm32_hrtim_close(FAR struct file *filep)
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{
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#warning "smt32_hrtim_close: missing logic"
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return OK;
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}
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/****************************************************************************
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* Name: stm32_hrtim_ioctl
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*
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* Description:
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* The standard ioctl method. This is where ALL of the HRTIM work is done.
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*
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****************************************************************************/
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static int stm32_hrtim_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct hrtim_dev_s *dev;
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FAR struct stm32_hrtim_s *hrtim;
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int ret;
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tmrinfo("cmd: %d arg: %ld\n", cmd, arg);
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dev = inode->i_private;
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DEBUGASSERT(dev != NULL);
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hrtim = dev->hd_priv;
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UNUSED(hrtim);
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#warning "smt32_hrtim_ioctl: missing logic"
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/* Handle HRTIM ioctl commands */
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switch (cmd)
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{
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default:
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{
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ret = -ENOSYS;
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break;
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}
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}
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return ret;
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}
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/****************************************************************************
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* Name: stm32_modifyreg32
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*
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@ -463,12 +538,13 @@ struct hrtim_dev_s g_hrtim1dev =
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*
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****************************************************************************/
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#ifdef HRTIM_HAVE_CLK_FROM_PLL
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static void stm32_modifyreg32(unsigned int addr, uint32_t clrbits,
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uint32_t setbits)
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{
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putreg32((getreg32(addr) & ~clrbits) | setbits, addr);
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}
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#endif
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/****************************************************************************
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* Name: hrtim_getreg
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@ -730,28 +806,6 @@ static void hrtim_tim_modifyreg(FAR struct stm32_hrtim_s *priv, uint8_t index,
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(hrtim_tim_getreg(priv, index, offset) & ~clrbits) | setbits);
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}
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/****************************************************************************
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* Name: hrtim_ioctl
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*
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* Description:
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* All ioctl calls will be routed through this method.
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*
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* Input Parameters:
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* dev - pointer to device structure used by the driver
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* cmd - command
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* arg - arguments passed with command
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*
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* Returned Value:
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* Zero on success; a negated errno value on failure.
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*
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****************************************************************************/
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static int hrtim_ioctl(FAR struct hrtim_dev_s *dev, int cmd, unsigned long arg)
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{
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#warning "hrtim_ioctl: missing logic"
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return -ENOTTY;
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}
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/****************************************************************************
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* Name: stm32_dll_cal
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*
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@ -1514,6 +1568,33 @@ FAR struct hrtim_dev_s* stm32_hrtiminitialize(void)
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return dev;
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}
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/****************************************************************************
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* Name: hrtim_register
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****************************************************************************/
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int hrtim_register(FAR const char *path, FAR struct hrtim_dev_s *dev)
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{
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int ret ;
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/* Initialize the HRTIM device structure */
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dev->hd_ocount = 0;
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/* Initialize semaphores */
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sem_init(&dev->hd_closesem, 0, 1);
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/* Register the HRTIM character driver */
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ret = register_driver(path, &hrtim_fops, 0444, dev);
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if (ret < 0)
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{
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sem_destroy(&dev->hd_closesem);
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}
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return ret;
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}
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#endif /* CONFIG_STM32_STM32F33XX */
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#endif /* CONFIG_STM32_HRTIM1 */
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@ -222,6 +222,20 @@ enum stm32_hrtim_tim_prescaler_e
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HRTIM_PRESCALER_128,
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};
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struct hrtim_dev_s
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{
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#ifdef CONFIG_HRTIM
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/* Fields managed by common upper half HRTIM logic */
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uint8_t hd_ocount; /* The number of times the device has been opened */
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sem_t hd_closesem; /* Locks out new opens while close is in progress */
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#endif
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/* Fields provided by lower half HRTIM logic */
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FAR void *hd_priv; /* Used by the arch-specific logic */
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};
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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@ -255,6 +269,12 @@ extern "C"
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FAR struct hrtim_dev_s* stm32_hrtiminitialize(void);
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/****************************************************************************
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* Name: hrtim_register
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****************************************************************************/
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int hrtim_register(FAR const char *path, FAR struct hrtim_dev_s *dev);
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#undef EXTERN
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#ifdef __cplusplus
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}
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